The 2018 Ram 5500 has 157 electrical connector parts with verified fitment on this page — 57 part types and 14 brands, covering both the 6.4L V8 and the 6.7L L6 DIESEL Turbocharged. Each part includes a manufacturer part number and application notes.
The connector system on the 2018 Ram 5500 supplies the pigtails and connector bodies that terminate the vehicle harness at lamps, sensors and modules. The largest groups are Fog / Driving Lamp Connector (12 parts), Headlamp Wiring Harness / Connector (12 parts) and Transmission-Automatic Wiring Harness / Connector (11 parts). The other 54 part types cover the remaining 122 parts.
The 2018 Ram 5500 was sold with both the 6.4L V8 and the 6.7L L6 DIESEL Turbocharged. 78 parts fit every engine; the other 79 are engine-specific. Each part shows which engine(s) it fits.
The most listed brands for 2018 Ram 5500 electrical connector parts are STANDARD MOTOR PRODUCTS (58 parts), MOPAR (44 parts) and CURT (13 parts), plus 11 more brands.
12 parts on this 2018 Ram 5500 page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including STANDARD MOTOR PRODUCTS HP3945 (ABS Wheel Speed Sensor Connector) and GPD 1712769 (Blower Motor Control Module / Resistor Connector). Click any part number to see every vehicle that part fits.
A/C Compressor Clutch Coil Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: all 2018 5500 engines | S2052 | 🇺🇸 US 🇨🇦 CA | Connector Shape: OvalGauge: 18-14 Gauge | View on Amazon |
This table covers the harness connectors at the A/C Compressor Clutch Coil. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
One part is listed for the 2018 Ram 5500 — STANDARD MOTOR PRODUCTS S2052.
A/C Refrigerant Temperature Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: all 2018 5500 engines | S2478 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the harness connectors at the A/C Refrigerant Temperature Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
One part is listed for the 2018 Ram 5500 — STANDARD MOTOR PRODUCTS S2478.
ABS Wheel Speed Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular Fits: all 2018 5500 engines | HP3945 | 🇺🇸 US 🇨🇦 CA | HandypackConnector Shape: Square | View on Amazon |
| STANDARD MOTOR PRODUCTS Popular Fits: all 2018 5500 engines | S824 | 🇺🇸 US 🇨🇦 CA | Connector Shape: SquareHarness Length | View on Amazon |
| ACDELCO Fits: all 2018 5500 engines | PT2160 | 🇺🇸 US 🇨🇦 CA | GoldShape: Square | View on Amazon |
| HOLSTEIN Fits: all 2018 5500 engines | 2HAR0035 | 🇺🇸 US 🇨🇦 CA | Includes ABS Wheel Speed Sensor Wire Harness | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: all 2018 5500 engines | S2346 | 🇺🇸 US 🇨🇦 CA | Complete AssemblyGray | View on Amazon |
| WELLS Fits: all 2018 5500 engines | 1P2543 | 🇺🇸 US 🇨🇦 CA | Rear Right | View on Amazon |
| WELLS Fits: all 2018 5500 engines | 1P2302 | 🇺🇸 US 🇨🇦 CA | Fits Front | View on Amazon |
This table covers the harness connectors at each ABS wheel-speed sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
7 ABS Wheel Speed Sensor Connector parts are listed for the 2018 Ram 5500, from STANDARD MOTOR PRODUCTS, WELLS, ACDELCO and 1 other brand. STANDARD MOTOR PRODUCTS HP3945 carries the "Popular" badge. All of them fit every engine offered in the 2018 5500.
Part numbers include STANDARD MOTOR PRODUCTS HP3945, STANDARD MOTOR PRODUCTS S824 and ACDELCO PT2160, among others listed above.
Accelerator Pedal Position Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: all 2018 5500 engines | S1478 | 🇺🇸 US 🇨🇦 CA | Connector Shape: Rectangle | View on Amazon |
This table covers the harness connectors at the Accelerator Pedal Position Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
One part is listed for the 2018 Ram 5500 — STANDARD MOTOR PRODUCTS S1478.
Air Intake / Charge Temperature Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS Fits: 6.4L V8 | 1P1562 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the harness connectors at the Air Intake / Charge Temperature Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
This group shows a single part: WELLS 1P1562.
Alternator / Generator Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HOLSTEIN Fits: 6.4L V8 | 2HAR0035 | 🇺🇸 US 🇨🇦 CA | Includes ABS Wheel Speed Sensor Wire Harness | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 6.4L V8 | S2895 | 🇺🇸 US 🇨🇦 CA | Upper Unit | View on Amazon |
| WELLS Fits: all 2018 5500 engines | 1P1877 | 🇺🇸 US 🇨🇦 CA | Wiring Harness Length: 18.75 In | View on Amazon |
This table covers the harness connectors at the Alternator / Generator. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
3 Alternator / Generator Connector parts are listed for the 2018 Ram 5500, from HOLSTEIN, STANDARD MOTOR PRODUCTS and WELLS. 1 part fits every engine; the other 2 are engine-specific.
Listed part numbers: HOLSTEIN 2HAR0035, STANDARD MOTOR PRODUCTS S2895 and WELLS 1P1877.
Ambient Air Temperature Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: all 2018 5500 engines | S3250 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the harness connectors at the Ambient Air Temperature Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
One part is listed for the 2018 Ram 5500 — STANDARD MOTOR PRODUCTS S3250.
Barometric Pressure Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 6.7L L6 DIESEL Turbocharged | S2883 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the harness connectors at the Barometric Pressure Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
This group shows a single part: STANDARD MOTOR PRODUCTS S2883.
Blower Motor Control Module / Resistor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GPD Popular Fits: all 2018 5500 engines | 1712769 | 🇺🇸 US 🇨🇦 CA | Blower Motor Resistor Pigtailwith Square Connector | View on Amazon |
| STANDARD MOTOR PRODUCTS Popular Fits: all 2018 5500 engines | S2117 | 🇺🇸 US 🇨🇦 CA | Connector Shape: Square | View on Amazon |
| FOUR SEASONS Fits: all 2018 5500 engines | 37258 | 🇺🇸 US 🇨🇦 CA | 4 Terminal MaleSquare Connector | View on Amazon |
| FOUR SEASONS Fits: all 2018 5500 engines | 37263 | 🇺🇸 US 🇨🇦 CA | 4 Terminal MaleRectangular Connector | View on Amazon |
| GPD Fits: all 2018 5500 engines | 1713423 | 🇺🇸 US 🇨🇦 CA | Blower Motor Resistor Pigtailwith 4 Terminal(s) | View on Amazon |
| HOLSTEIN Fits: all 2018 5500 engines | 2HAR0048 | 🇺🇸 US 🇨🇦 CA | without Automatic Temperature Control | View on Amazon |
| HOLSTEIN Fits: all 2018 5500 engines | 2HAR0002 | 🇺🇸 US 🇨🇦 CA | without Automatic Temp Control | View on Amazon |
| HOLSTEIN Fits: all 2018 5500 engines | 2HAR0052 | 🇺🇸 US 🇨🇦 CA | with Automatic Temperature Control | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: all 2018 5500 engines | S1573 | 🇺🇸 US 🇨🇦 CA | Connector Shape: Rectangle | View on Amazon |
This table covers the connectors at the blower resistor or control module. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
9 Blower Motor Control Module / Resistor Connector parts for the 2018 Ram 5500 come from 4 brands — HOLSTEIN, GPD, STANDARD MOTOR PRODUCTS and 1 other brand. The "Popular" part is GPD 1712769. Every part fits both the 6.4L V8 and the 6.7L L6 DIESEL Turbocharged.
This group includes GPD 1712769, STANDARD MOTOR PRODUCTS S2117 and FOUR SEASONS 37258 and the remaining parts above.
Body Wiring Harness / Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: all 2018 5500 engines | 52112285AB | 🇺🇸 US 🇨🇦 CA | Fits Cab ChassisRegular Cab Chassis Wheelbase 1or Cab Chassis | View on Amazon |
| MOPAR Fits: all 2018 5500 engines | 68323666AA | 🇺🇸 US 🇨🇦 CA | Tailgate WiringCamera | View on Amazon |
| MOPAR Fits: all 2018 5500 engines | 68339568AE | 🇺🇸 US 🇨🇦 CA | Fits Cab ChassisExc. Power Locks | View on Amazon |
| MOPAR Fits: all 2018 5500 engines | 68339676AE | 🇺🇸 US 🇨🇦 CA | Fits Cab ChassisExc. 115V Auxiliary Power Outlet | View on Amazon |
| MOPAR Fits: all 2018 5500 engines | 68339679AE | 🇺🇸 US 🇨🇦 CA | Fits Cab Chassis115V Auxiliary Power Outlet | View on Amazon |
This table covers the body-harness connectors and pigtails. Typical signs include an intermittent fault that moves when you wiggle the harness, or a melted or corroded plug. Match terminal count and keyway. Repair with heat-shrink terminals, not twist-and-tape.
5 Body Wiring Harness / Connector parts for the 2018 Ram 5500 come from MOPAR. Every part fits both the 6.4L V8 and the 6.7L L6 DIESEL Turbocharged.
Listed part numbers: MOPAR 52112285AB, MOPAR 68323666AA and MOPAR 68339568AE, plus the other parts above.
Brake Light Switch Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 6.7L L6 DIESEL Turbocharged | S3095 | 🇺🇸 US 🇨🇦 CA | with Speed Control | View on Amazon |
This table covers the harness connectors at the Brake Light Switch. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
This group shows a single part: STANDARD MOTOR PRODUCTS S3095.
Camshaft Position Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: all 2018 5500 engines | S1832 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WALKER PRODUCTS Fits: 6.4L V8 | 2701145 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WELLS Fits: 6.7L L6 DIESEL Turbocharged | 1P2682 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the harness connectors at the Camshaft Position Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
3 Camshaft Position Sensor Connector parts are listed for the 2018 Ram 5500, from STANDARD MOTOR PRODUCTS, WALKER PRODUCTS and WELLS. 1 part fits every engine; the other 2 are engine-specific.
Part numbers include STANDARD MOTOR PRODUCTS S1832, WALKER PRODUCTS 2701145 and WELLS 1P2682.
Coolant Level Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 6.7L L6 DIESEL Turbocharged | HP4720 | 🇺🇸 US 🇨🇦 CA | HandypackConnector Shape: Oval | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 6.7L L6 DIESEL Turbocharged | S575 | 🇺🇸 US 🇨🇦 CA | Connector Shape: OvalHarness Length | View on Amazon |
| WALKER PRODUCTS Fits: 6.7L L6 DIESEL Turbocharged | 2701130 | 🇺🇸 US 🇨🇦 CA | Terminal Gender: MaleWiring Harness Length: 180.00 mm | View on Amazon |
This table covers the harness connectors at the Coolant Level Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
3 Coolant Level Sensor Connector parts are listed for the 2018 Ram 5500, from STANDARD MOTOR PRODUCTS and WALKER PRODUCTS.
Part numbers include STANDARD MOTOR PRODUCTS HP4720, STANDARD MOTOR PRODUCTS S575 and WALKER PRODUCTS 2701130.
Crankshaft Position Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 6.7L L6 DIESEL Turbocharged | S1832 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WALKER PRODUCTS Fits: 6.4L V8 | 2701145 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the harness connectors at the Crankshaft Position Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
2 Crankshaft Position Sensor Connector parts are listed for the 2018 Ram 5500, from STANDARD MOTOR PRODUCTS and WALKER PRODUCTS.
Listed part numbers: STANDARD MOTOR PRODUCTS S1832 and WALKER PRODUCTS 2701145.
Cylinder Deactivation Solenoid Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 6.4L V8 | S2442 | 🇺🇸 US 🇨🇦 CA | with Only Connector | View on Amazon |
This table covers the harness connectors at the Cylinder Deactivation Solenoid. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
One part is listed for the 2018 Ram 5500 — STANDARD MOTOR PRODUCTS S2442.
Diesel Exhaust Fluid (DEF) Injection Nozzle Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Fits: 6.7L L6 DIESEL Turbocharged | PT2160 | 🇺🇸 US 🇨🇦 CA | GoldShape: Square | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 6.7L L6 DIESEL Turbocharged | HP3945 | 🇺🇸 US 🇨🇦 CA | HandypackConnector Shape: Square | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 6.7L L6 DIESEL Turbocharged | S824 | 🇺🇸 US 🇨🇦 CA | Connector Shape: SquareHarness Length | View on Amazon |
This table covers the harness connectors at the Diesel Exhaust Fluid (DEF) Injection Nozzle. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
3 Diesel Exhaust Fluid (DEF) Injection Nozzle Connector parts for the 2018 Ram 5500 come from 2 brands — STANDARD MOTOR PRODUCTS and ACDELCO.
Listed part numbers: ACDELCO PT2160, STANDARD MOTOR PRODUCTS HP3945 and STANDARD MOTOR PRODUCTS S824.
Diesel Exhaust Fluid (DEF) Pump Wiring Harness / Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: 6.7L L6 DIESEL Turbocharged | 68330360AB | 🇺🇸 US 🇨🇦 CA | Urea Tank Harness | View on Amazon |
This table covers the wiring-harness connectors at the Diesel Exhaust Fluid (DEF) Pump. Typical signs include an intermittent fault that moves when you wiggle the harness, or a melted or corroded plug. Match terminal count and keyway. Repair with heat-shrink terminals, not twist-and-tape.
This group shows a single part: MOPAR 68330360AB.
Door Lock Actuator Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: all 2018 5500 engines | S2894 | 🇺🇸 US 🇨🇦 CA | Front and Rear Door | View on Amazon |
This table covers the harness connectors at the Door Lock Actuator. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
One part is listed for the 2018 Ram 5500 — STANDARD MOTOR PRODUCTS S2894.
Door Wiring Harness / Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: all 2018 5500 engines | 68263808AC | 🇺🇸 US 🇨🇦 CA | Rear Door Wiring | View on Amazon |
| MOPAR Fits: all 2018 5500 engines | 68263810AC | 🇺🇸 US 🇨🇦 CA | Rear Door Wiring | View on Amazon |
| MOPAR Fits: all 2018 5500 engines | 68365315AB | 🇺🇸 US 🇨🇦 CA | Rear Door Wiring | View on Amazon |
| MOPAR Fits: all 2018 5500 engines | 68365316AB | 🇺🇸 US 🇨🇦 CA | Rear Door Wiring | View on Amazon |
| MOPAR Fits: all 2018 5500 engines | 68365321AB | 🇺🇸 US 🇨🇦 CA | Rear Door Wiring | View on Amazon |
This table covers the wiring-harness connectors at the Door. Typical signs include an intermittent fault that moves when you wiggle the harness, or a melted or corroded plug. Match terminal count and keyway. Repair with heat-shrink terminals, not twist-and-tape.
5 Door Wiring Harness / Connector parts for the 2018 Ram 5500 come from MOPAR. Every part fits both the 6.4L V8 and the 6.7L L6 DIESEL Turbocharged.
Part numbers include MOPAR 68263808AC, MOPAR 68263810AC and MOPAR 68365315AB, among others listed above.
EGR Pressure Feedback (DPFE) Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 6.7L L6 DIESEL Turbocharged | S2937 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the harness connectors at the EGR Pressure Feedback (DPFE) Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
One part is listed for the 2018 Ram 5500 — STANDARD MOTOR PRODUCTS S2937.
EGR Valve Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKP Fits: 6.7L L6 DIESEL Turbocharged | SKS575 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| STANDARD MOTOR PRODUCTS Fits: 6.4L V8 | S2498 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| STANDARD MOTOR PRODUCTS Fits: 6.7L L6 DIESEL Turbocharged | S3273 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the harness connectors at the EGR Valve. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
3 EGR Valve Connector parts are listed for the 2018 Ram 5500, from STANDARD MOTOR PRODUCTS and SKP.
This group includes SKP SKS575, STANDARD MOTOR PRODUCTS S2498 and STANDARD MOTOR PRODUCTS S3273.
Engine Block Heater Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: 6.4L V8 | 68230846AA | 🇺🇸 US 🇨🇦 CA | Fits Cab ChassisHeavy Duty HEMI MDS Engine, Cab Chassis | View on Amazon |
| MOPAR Fits: 6.7L L6 DIESEL Turbocharged | 68206400AB | 🇺🇸 US 🇨🇦 CA | Fits Cab ChassisEngine Block Heater | View on Amazon |
This table covers the harness connectors at the Engine Block Heater. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
MOPAR supplies both parts for the 2018 Ram 5500.
This group includes MOPAR 68230846AA and MOPAR 68206400AB.
Engine Wiring Harness / Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: 6.7L L6 DIESEL Turbocharged | 68232788AA | 🇺🇸 US 🇨🇦 CA | Fits Cab ChassisCummins Engine | View on Amazon |
This table covers the wiring-harness connectors at the Engine. Typical signs include an intermittent fault that moves when you wiggle the harness, or a melted or corroded plug. Match terminal count and keyway. Repair with heat-shrink terminals, not twist-and-tape.
This group shows a single part: MOPAR 68232788AA.
Exhaust Gas Temperature (EGT) Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 6.7L L6 DIESEL Turbocharged | S3159 | 🇺🇸 US 🇨🇦 CA | Located on EGR Crossover Tube | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 6.7L L6 DIESEL Turbocharged | S3172 | 🇺🇸 US 🇨🇦 CA | Fits Located Before Catalytic Converteror Located Before Particulate Filteror Located After Particulate Filteror Located in Catalytic Converteror Located After Catalytic Converter | View on Amazon |
This table covers the harness connectors at the Exhaust Gas Temperature (EGT) Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
STANDARD MOTOR PRODUCTS supplies both parts for the 2018 Ram 5500.
Listed part numbers: STANDARD MOTOR PRODUCTS S3159 and STANDARD MOTOR PRODUCTS S3172.
Fog / Driving Lamp Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular Fits: all 2018 5500 engines | LS254 | 🇺🇸 US 🇨🇦 CA | Gold | View on Amazon |
| STANDARD MOTOR PRODUCTS Popular Fits: all 2018 5500 engines | S524 | 🇺🇸 US 🇨🇦 CA | Weather Resistant: YES | View on Amazon |
| WELLS Popular Fits: all 2018 5500 engines | 6S1046 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| ACDELCO Fits: all 2018 5500 engines | LS255 | 🇺🇸 US 🇨🇦 CA | Gold | View on Amazon |
| MOPAR Fits: all 2018 5500 engines | 68046303AC | 🇺🇸 US 🇨🇦 CA | Jumper Wiring | View on Amazon |
| MOPAR Fits: all 2018 5500 engines | 68262823AA | 🇺🇸 US 🇨🇦 CA | Jumper Wiring | View on Amazon |
| ROSTRA Fits: all 2018 5500 engines | 610004 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| STANDARD MOTOR PRODUCTS Fits: all 2018 5500 engines | HP3960 | 🇺🇸 US 🇨🇦 CA | Handy PackBlack | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: all 2018 5500 engines | HP3970 | 🇺🇸 US 🇨🇦 CA | Handypack | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: all 2018 5500 engines | S523 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| WALKER PRODUCTS Fits: all 2018 5500 engines | 2701125 | 🇺🇸 US 🇨🇦 CA | without Projector HeadlightsBlack and Blue | View on Amazon |
| WALKER PRODUCTS Fits: all 2018 5500 engines | 2701121 | 🇺🇸 US 🇨🇦 CA | Terminal Gender: Male | View on Amazon |
This table covers the harness connectors at the Fog / Driving Lamp. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
12 Fog / Driving Lamp Connector parts are listed for the 2018 Ram 5500, from STANDARD MOTOR PRODUCTS, ACDELCO, MOPAR and 3 other brands. ACDELCO LS254 carries the "Popular" badge. All of them fit every engine offered in the 2018 5500.
Fuel Injection Pressure Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 6.7L L6 DIESEL Turbocharged | S2902 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the harness connectors at the Fuel Injection Pressure Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
One part is listed for the 2018 Ram 5500 — STANDARD MOTOR PRODUCTS S2902.
Fuel Injector Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GB REMANUFACTURING Fits: 6.4L V8 | 5191 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| SKP Fits: 6.7L L6 DIESEL Turbocharged | SKS824 | 🇺🇸 US 🇨🇦 CA | Includes ABS Wheel Speed Sensor Wire Harness | View on Amazon |
| WELLS Fits: 6.4L V8 | 1P2047 | 🇺🇸 US 🇨🇦 CA | Wiring Harness Length: 20.22 In | View on Amazon |
This table covers the harness connectors at the Fuel Injector. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
3 Fuel Injector Connector parts are listed for the 2018 Ram 5500, from GB REMANUFACTURING, SKP and WELLS.
This group includes GB REMANUFACTURING 5191, SKP SKS824 and WELLS 1P2047.
Fuel Rail Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 6.7L L6 DIESEL Turbocharged | S2902 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the harness connectors at the Fuel Rail. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
One part is listed for the 2018 Ram 5500 — STANDARD MOTOR PRODUCTS S2902.
Headlamp Wiring Harness / Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Popular Fits: all 2018 5500 engines | 926384 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| SKP Popular Fits: all 2018 5500 engines | SK926384 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| MOPAR Fits: 6.4L V8 | 52112266AB | 🇺🇸 US 🇨🇦 CA | Fits Cab ChassisHalogen Quad Headlamps | View on Amazon |
| MOPAR Fits: 6.4L V8 | 52112266AC | 🇺🇸 US 🇨🇦 CA | Fits Cab ChassisHalogen Quad Headlamps | View on Amazon |
| MOPAR Fits: 6.4L V8 | 52112267AC | 🇺🇸 US 🇨🇦 CA | Fits Cab ChassisHalogen Quad Headlamps, Fog Lamps | View on Amazon |
| MOPAR Fits: 6.4L V8 | 52112268AC | 🇺🇸 US 🇨🇦 CA | Fits Cab ChassisHalogen Quad Headlamps, Remote Start System | View on Amazon |
| MOPAR Fits: 6.4L V8 | 52112270AC | 🇺🇸 US 🇨🇦 CA | Fits Cab ChassisHalogen Quad Headlamps, Remote Start System, Fog Lamps | View on Amazon |
| MOPAR Fits: 6.7L L6 DIESEL Turbocharged | 52112273AB | 🇺🇸 US 🇨🇦 CA | Fits Cab ChassisCummins Engine | View on Amazon |
| MOPAR Fits: 6.7L L6 DIESEL Turbocharged | 52112274AB | 🇺🇸 US 🇨🇦 CA | Fits Cab ChassisCummins Engine | View on Amazon |
| MOPAR Fits: 6.7L L6 DIESEL Turbocharged | 52112275AA | 🇺🇸 US 🇨🇦 CA | Fits Cab ChassisCummins Engine | View on Amazon |
| MOPAR Fits: 6.7L L6 DIESEL Turbocharged | 52112275AB | 🇺🇸 US 🇨🇦 CA | Fits Cab ChassisCummins Engine | View on Amazon |
| MOPAR Fits: 6.7L L6 DIESEL Turbocharged | 52112276AB | 🇺🇸 US 🇨🇦 CA | Fits Cab ChassisCummins Engine | View on Amazon |
This table covers the wiring-harness connectors at the Headlamp. Typical signs include an intermittent fault that moves when you wiggle the harness, or a melted or corroded plug. Match terminal count and keyway. Repair with heat-shrink terminals, not twist-and-tape.
12 Headlamp Wiring Harness / Connector parts for the 2018 Ram 5500 come from 3 brands — MOPAR, DORMAN and SKP. The "Popular" part is DORMAN 926384. 2 parts fit every engine; the other 10 are engine-specific.
Heater Core Temperature Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: all 2018 5500 engines | S2478 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the harness connectors at the Heater Core Temperature Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
One part is listed for the 2018 Ram 5500 — STANDARD MOTOR PRODUCTS S2478.
Ignition Coil Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 6.4L V8 | 645150 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| STANDARD MOTOR PRODUCTS Fits: 6.4L V8 | S2087 | 🇺🇸 US 🇨🇦 CA | Gauge: 16-14 GA | View on Amazon |
| WELLS Fits: 6.4L V8 | 1P1801 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the harness connectors at the Ignition Coil. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
3 Ignition Coil Connector parts are listed for the 2018 Ram 5500, from DORMAN, STANDARD MOTOR PRODUCTS and WELLS.
Part numbers include DORMAN 645150, STANDARD MOTOR PRODUCTS S2087 and WELLS 1P1801.
Ignition Starter Switch Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: all 2018 5500 engines | S2402 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the harness connectors at the Ignition Starter Switch. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
One part is listed for the 2018 Ram 5500 — STANDARD MOTOR PRODUCTS S2402.
Instrument Panel Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: all 2018 5500 engines | 68338829AE | 🇺🇸 US 🇨🇦 CA | Fits Cab Chassis2 Speakers or 6 Speakers, Rear View Auto Dim Mirror with Display, Upfitter Electronic Module (VSIM) | View on Amazon |
This table covers the harness connectors at the Instrument Panel. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
This group shows a single part: MOPAR 68338829AE.
Knock / Detonation Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Fits: 6.4L V8 | PT2164 | 🇺🇸 US 🇨🇦 CA | Gold | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 6.4L V8 | HP3860 | 🇺🇸 US 🇨🇦 CA | HandypackTerminal Type: Blade | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 6.4L V8 | S697 | 🇺🇸 US 🇨🇦 CA | Connector Shape: RectangleHarness Length | View on Amazon |
| WALKER PRODUCTS Fits: 6.4L V8 | 2701034 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the harness connectors at the Knock / Detonation Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
4 Knock / Detonation Sensor Connector parts are listed for the 2018 Ram 5500, from STANDARD MOTOR PRODUCTS, ACDELCO and WALKER PRODUCTS.
Part numbers include ACDELCO PT2164, STANDARD MOTOR PRODUCTS HP3860 and STANDARD MOTOR PRODUCTS S697, among others listed above.
Mass Air Flow (MAF) Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: all 2018 5500 engines | S949 | 🇺🇸 US 🇨🇦 CA | rectangularwith 4 Female Terminals | View on Amazon |
This table covers the harness connectors at the Mass Air Flow (MAF) Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
This group shows a single part: STANDARD MOTOR PRODUCTS S949.
Oil Pressure Sender / Switch Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: all 2018 5500 engines | S2937 | 🇺🇸 US 🇨🇦 CA | Color Code Gray and Bluewith 3 Female Terminals | View on Amazon |
This table covers the harness connectors at the Oil Pressure Sender / Switch. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
This group shows a single part: STANDARD MOTOR PRODUCTS S2937.
Parking / Turn Signal Lamp Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: all 2018 5500 engines | S2983 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
This table covers the harness connectors at the Parking / Turn Signal Lamp. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
One part is listed for the 2018 Ram 5500 — STANDARD MOTOR PRODUCTS S2983.
Parking Aid Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: all 2018 5500 engines | S1497 | 🇺🇸 US 🇨🇦 CA | Front And Rear | View on Amazon |
This table covers the harness connectors at the Parking Aid Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
One part is listed for the 2018 Ram 5500 — STANDARD MOTOR PRODUCTS S1497.
Radiator Fan Motor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 6.4L V8 | S3023 | 🇺🇸 US 🇨🇦 CA | Connector Shape: Square | View on Amazon |
This table covers the harness connectors at the Radiator Fan Motor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
One part is listed for the 2018 Ram 5500 — STANDARD MOTOR PRODUCTS S3023.
Starter Solenoid Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 6.4L V8 | S2984 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the harness connectors at the Starter Solenoid. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
One part is listed for the 2018 Ram 5500 — STANDARD MOTOR PRODUCTS S2984.
Steering Wheel Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: all 2018 5500 engines | 68163712AB | 🇺🇸 US 🇨🇦 CA | Fits Cab Chassis4-Spoke Steering Wheel, Speed Control, Vehicle Information Center | View on Amazon |
| MOPAR Fits: all 2018 5500 engines | 68163716AC | 🇺🇸 US 🇨🇦 CA | Fits Cab ChassisLeather Wrapped Steering Wheel, Speed Control, Steering Wheel Mounted Audio Controls, Vehicle Information Center, Heated Steering Wheel, Integrated Voice Command with Bluetooth | View on Amazon |
| MOPAR Fits: all 2018 5500 engines | 68163713AC | 🇺🇸 US 🇨🇦 CA | Fits Cab ChassisLeather Wrapped Steering Wheel, Speed Control, Steering Wheel Mounted Audio Controls, Vehicle Information Center, Integrated Voice Command with Bluetooth | View on Amazon |
This table covers the harness connectors at the Steering Wheel. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
MOPAR supplies the 3 Steering Wheel Connector parts for the 2018 Ram 5500. All of them fit every engine offered in the 2018 5500.
This group includes MOPAR 68163712AB, MOPAR 68163716AC and MOPAR 68163713AC.
Steering Wheel Position Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: all 2018 5500 engines | S2468 | 🇺🇸 US 🇨🇦 CA | Angle Sensor | View on Amazon |
This table covers the harness connectors at the Steering Wheel Position Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
This group shows a single part: STANDARD MOTOR PRODUCTS S2468.
Tailgate Wiring Harness / Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: all 2018 5500 engines | 68323666AA | 🇺🇸 US 🇨🇦 CA | Tailgate WiringCamera | View on Amazon |
This table covers the wiring-harness connectors at the Tailgate. Typical signs include an intermittent fault that moves when you wiggle the harness, or a melted or corroded plug. Match terminal count and keyway. Repair with heat-shrink terminals, not twist-and-tape.
One part is listed for the 2018 Ram 5500 — MOPAR 68323666AA.
Temperature Sender / Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Fits: 6.7L L6 DIESEL Turbocharged | PT2386 | 🇺🇸 US 🇨🇦 CA | GoldShape: Square | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 6.7L L6 DIESEL Turbocharged | HP3840 | 🇺🇸 US 🇨🇦 CA | HandypackWiring Harness Length (mm): 158.75 | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 6.7L L6 DIESEL Turbocharged | TX3A | 🇺🇸 US 🇨🇦 CA | Wiring Harness Length (mm): 158.75Black | View on Amazon |
| WALKER PRODUCTS Fits: 6.7L L6 DIESEL Turbocharged | 2111500 | 🇺🇸 US 🇨🇦 CA | Terminal Quantity: 2Includes O-Ring | View on Amazon |
| WELLS Fits: 6.4L V8 | 1P2227 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the harness connectors at the Temperature Sender / Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
5 Temperature Sender / Sensor Connector parts are listed for the 2018 Ram 5500, from STANDARD MOTOR PRODUCTS, ACDELCO, WALKER PRODUCTS and 1 other brand.
Part numbers include ACDELCO PT2386, STANDARD MOTOR PRODUCTS HP3840 and STANDARD MOTOR PRODUCTS TX3A, among others listed above.
Throttle Control Actuator Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BWD/NIEHOFF Fits: 6.7L L6 DIESEL Turbocharged | PT1267 | 🇺🇸 US 🇨🇦 CA | Throttle Actuator ConnectorElectric Throttle Body Actuator Connector | View on Amazon |
| HOLSTEIN Fits: 6.7L L6 DIESEL Turbocharged | 2HAR0013 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| STANDARD MOTOR PRODUCTS Fits: 6.4L V8 | S2409 | 🇺🇸 US 🇨🇦 CA | Gender: MaleHarness Length | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 6.7L L6 DIESEL Turbocharged | S1768 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| STANDARD MOTOR PRODUCTS Fits: 6.7L L6 DIESEL Turbocharged | HP4105 | 🇺🇸 US 🇨🇦 CA | Handypack | View on Amazon |
This table covers the harness connectors at the Throttle Control Actuator. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
5 Throttle Control Actuator Connector parts are listed for the 2018 Ram 5500, from STANDARD MOTOR PRODUCTS, BWD/NIEHOFF and HOLSTEIN.
Listed part numbers: BWD/NIEHOFF PT1267, HOLSTEIN 2HAR0013 and STANDARD MOTOR PRODUCTS S2409, plus the other parts above.
Trailer Adapter Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CURT Fits: all 2018 5500 engines | 57101 | 🇺🇸 US 🇨🇦 CA | 7-Way Round RV To 4-Way Flat Adapter | View on Amazon |
| MOPAR Fits: 6.7L L6 DIESEL Turbocharged | 56019823 | 🇺🇸 US 🇨🇦 CA | Trailer Tow Wiring Adapter converts seven-Way round connector To four-Way flat connector | View on Amazon |
This table covers the harness connectors at the Trailer Adapter. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
2 Trailer Adapter Connector parts are listed for the 2018 Ram 5500, from CURT and MOPAR. 1 part fits every engine; the other 1 is engine-specific.
Listed part numbers: CURT 57101 and MOPAR 56019823.
Trailer Brake Switch Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CURT Fits: all 2018 5500 engines | 51457 | 🇺🇸 US 🇨🇦 CA | Brake Control Adapter Harness | View on Amazon |
| CURT Fits: all 2018 5500 engines | 51458 | 🇺🇸 US 🇨🇦 CA | Brake Control Adapter Harness | View on Amazon |
This table covers the harness connectors at the Trailer Brake Switch. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
CURT supplies both parts for the 2018 Ram 5500. All of them fit every engine offered in the 2018 5500.
Listed part numbers: CURT 51457 and CURT 51458.
Trailer Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CURT Popular Fits: all 2018 5500 engines | 55415 | 🇺🇸 US 🇨🇦 CA | Replacement 7-Way RV Blade OEM Socket | View on Amazon |
| CURT Popular Fits: all 2018 5500 engines | 56229 | 🇺🇸 US 🇨🇦 CA | 7-Way USCAR Electrical ConnectorLength: 24 in. | View on Amazon |
| CURT Fits: all 2018 5500 engines | 56415 | 🇺🇸 US 🇨🇦 CA | Replacement 7-Way RV Blade OEM SocketTwist-In | View on Amazon |
| CURT Fits: all 2018 5500 engines | 55515 | 🇺🇸 US 🇨🇦 CA | Custom Wiring ConnectorOE 4-Way Flat | View on Amazon |
| CURT Fits: all 2018 5500 engines | 56515 | 🇺🇸 US 🇨🇦 CA | Custom Wiring Connector5-Way Flat | View on Amazon |
| CURT Fits: all 2018 5500 engines | 55774 | 🇺🇸 US 🇨🇦 CA | OEM Vehicle to Trailer Connector with Harness7-Way and 4-Way | View on Amazon |
| CURT Fits: all 2018 5500 engines | 57015 | 🇺🇸 US 🇨🇦 CA | OEM Replacement Dual-Output 7 and 4 Way ConnectorPlugs Into USCAR Socket | View on Amazon |
| CURT Fits: all 2018 5500 engines | 55384 | 🇺🇸 US 🇨🇦 CA | Custom Wiring Connector4-Way Flat | View on Amazon |
| CURT Fits: all 2018 5500 engines | 57020 | 🇺🇸 US 🇨🇦 CA | OEM Replacement Dual-Output 7 and 4 Way ConnectorPackaged | View on Amazon |
| CURT Fits: all 2018 5500 engines | 56584 | 🇺🇸 US 🇨🇦 CA | Custom Wiring Harness5-Way Flat | View on Amazon |
This table covers the trailer-lighting connectors at the hitch. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
10 Trailer Connector parts for the 2018 Ram 5500 come from CURT. The "Popular" part is CURT 55415. Every part fits both the 6.4L V8 and the 6.7L L6 DIESEL Turbocharged.
Transmission-Automatic Wiring Harness / Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Popular Fits: all 2018 5500 engines | 68224246AA | 🇺🇸 US 🇨🇦 CA | Fits Cab ChassisExcept Power Take Off Preparation - Left Side | View on Amazon |
| MOPAR Fits: 6.4L V8 | 68338868AE | 🇺🇸 US 🇨🇦 CA | Fits Cab Chassis180 Amps Alternator | View on Amazon |
| MOPAR Fits: 6.4L V8 | 68338869AD | 🇺🇸 US 🇨🇦 CA | Fits Cab Chassis180 Amp Alternator, MAN Shift-On-The-Fly Transfer Case | View on Amazon |
| MOPAR Fits: 6.4L V8 | 68338870AD | 🇺🇸 US 🇨🇦 CA | Fits Cab Chassis180 Amp Alternator, Electric Shift-On-The-Fly Transfer Case | View on Amazon |
| MOPAR Fits: 6.4L V8 | 68338871AD | 🇺🇸 US 🇨🇦 CA | Fits Cab Chassis220 Amps Alternator | View on Amazon |
| MOPAR Fits: 6.4L V8 | 68338872AD | 🇺🇸 US 🇨🇦 CA | Fits Cab ChassisDual Alternators Rated At 380 Amps | View on Amazon |
| MOPAR Fits: 6.7L L6 DIESEL Turbocharged | 68339831AC | 🇺🇸 US 🇨🇦 CA | Fits Cab ChassisCummins Engine | View on Amazon |
| MOPAR Fits: 6.7L L6 DIESEL Turbocharged | 68339832AC | 🇺🇸 US 🇨🇦 CA | Fits Cab ChassisCummins Engine | View on Amazon |
| MOPAR Fits: 6.7L L6 DIESEL Turbocharged | 68339833AC | 🇺🇸 US 🇨🇦 CA | Fits Cab ChassisCummins Engine | View on Amazon |
| MOPAR Fits: 6.7L L6 DIESEL Turbocharged | 68339834AC | 🇺🇸 US 🇨🇦 CA | Fits Cab ChassisCummins Engine | View on Amazon |
| MOPAR Fits: 6.7L L6 DIESEL Turbocharged | 68339835AE | 🇺🇸 US 🇨🇦 CA | Fits Cab ChassisCummins Engine | View on Amazon |
This table covers the wiring-harness connectors at the Transmission-Automatic. Typical signs include an intermittent fault that moves when you wiggle the harness, or a melted or corroded plug. Match terminal count and keyway. Repair with heat-shrink terminals, not twist-and-tape.
11 Transmission-Automatic Wiring Harness / Connector parts for the 2018 Ram 5500 come from MOPAR. The "Popular" part is MOPAR 68224246AA. 1 part fits every engine; the other 10 are engine-specific.
USB / AUX Port Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: all 2018 5500 engines | 68322813AD | 🇺🇸 US 🇨🇦 CA | Hub Media CenterHDMI USB & AUX | View on Amazon |
This table covers the harness connectors at the USB / AUX Port. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
One part is listed for the 2018 Ram 5500 — MOPAR 68322813AD.
Vapor Canister Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 6.4L V8 | HP4325 | 🇺🇸 US 🇨🇦 CA | HandypackConnector Shape: Rectangle | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 6.4L V8 | S1024 | 🇺🇸 US 🇨🇦 CA | Connector Shape: RectangleHarness Length | View on Amazon |
This table covers the harness connectors at the Vapor Canister. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
2 Vapor Canister Connector parts for the 2018 Ram 5500 come from STANDARD MOTOR PRODUCTS.
This group includes STANDARD MOTOR PRODUCTS HP4325 and STANDARD MOTOR PRODUCTS S1024.
Vapor Canister Purge Valve / Solenoid Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 6.4L V8 | HP4325 | 🇺🇸 US 🇨🇦 CA | HandypackConnector Shape: Rectangle | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 6.4L V8 | S1024 | 🇺🇸 US 🇨🇦 CA | Connector Shape: RectangleHarness Length | View on Amazon |
This table covers the harness connectors at the Vapor Canister Purge Valve / Solenoid. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
STANDARD MOTOR PRODUCTS supplies both parts for the 2018 Ram 5500.
Part numbers include STANDARD MOTOR PRODUCTS HP4325 and STANDARD MOTOR PRODUCTS S1024.
Vapor Leak Detection Pump Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ROSTRA Fits: 6.4L V8 | 610161 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| STANDARD MOTOR PRODUCTS Fits: all 2018 5500 engines | HP4325 | 🇺🇸 US 🇨🇦 CA | HandypackConnector Shape: Rectangle | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: all 2018 5500 engines | S1024 | 🇺🇸 US 🇨🇦 CA | Connector Shape: RectangleHarness Length | View on Amazon |
| WELLS Fits: 6.4L V8 | 1P1626 | 🇺🇸 US 🇨🇦 CA | Wiring Harness Length: 17.75 In | View on Amazon |
This table covers the harness connectors at the Vapor Leak Detection Pump. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
4 Vapor Leak Detection Pump Connector parts are listed for the 2018 Ram 5500, from STANDARD MOTOR PRODUCTS, ROSTRA and WELLS. 2 parts fit every engine; the other 2 are engine-specific.
Part numbers include ROSTRA 610161, STANDARD MOTOR PRODUCTS HP4325 and STANDARD MOTOR PRODUCTS S1024, among others listed above.
Variable Valve Timing (VVT) Solenoid Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 6.4L V8 | S3082 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the harness connectors at the Variable Valve Timing (VVT) Solenoid. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
One part is listed for the 2018 Ram 5500 — STANDARD MOTOR PRODUCTS S3082.
Washer Fluid Level Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: all 2018 5500 engines | S3082 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the harness connectors at the Washer Fluid Level Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
One part is listed for the 2018 Ram 5500 — STANDARD MOTOR PRODUCTS S3082.
Washer Pump Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: all 2018 5500 engines | S2279 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the harness connectors at the Washer Pump. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
One part is listed for the 2018 Ram 5500 — STANDARD MOTOR PRODUCTS S2279.
Water in Fuel Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 6.7L L6 DIESEL Turbocharged | S2963 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
This table covers the harness connectors at the Water in Fuel Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
One part is listed for the 2018 Ram 5500 — STANDARD MOTOR PRODUCTS S2963.
Buying Electrical Connector Parts for a 2018 Ram 5500
On this vehicle, the connector system supplies the pigtails and connector bodies that terminate the vehicle harness at lamps, sensors and modules.
- Match the engine first. Some electrical connector parts fit every engine; others are engine-specific. Each row shows which engine(s) it fits.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, use heat-shrink crimp connectors rather than twist-and-tape for any pigtail splice, especially outside the cabin.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Fog / Driving Lamp Connector and Headlamp Wiring Harness / Connector .
Frequently Asked Questions
How many electrical connector parts fit the 2018 Ram 5500?
Our catalog currently lists 157 electrical connector parts for the 2018 Ram 5500 across 57 subcategories and 14 brands, covering both the 6.4L V8 and the 6.7L L6 DIESEL Turbocharged. Each part is matched to the engine(s) it fits.
Do electrical connector parts differ between 2018 Ram 5500 engines?
Some do. 78 parts fit every engine; the other 79 are engine-specific. Each row (and the filter at the top) shows which. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.
What are the signs of electrical connector problems on a 2018 Ram 5500?
Common symptoms include intermittent faults that move when the harness is wiggled, green corrosion inside a plug, or melted connector housings near heat sources. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What should I replace at the same time?
Where labor overlaps, use heat-shrink crimp connectors rather than twist-and-tape for any pigtail splice, especially outside the cabin.
What do the market flags (US, CA, MX) on each part mean?
They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 2018 Ram 5500 was originally sold in the US, the safest choice is a part marked for the US market.
How do I make sure a part fits my 2018 Ram 5500?
First match the engine — each row shows which engine(s) the part fits. Then match the connector by terminal count and keyway, not just appearance — many families look identical but will not lock. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2018 Ram 5500
Electrical Connector Parts for Other Ram 5500 Years
Switch vehicle or jump to a subcategory
Manufacturer names, model designations and part numbers are used for identification and fitment reference only. AutoFactsDB is an independent catalog and is not affiliated with, endorsed by, or sponsored by any vehicle manufacturer displayed on this page.