2018 Ram Promaster 2500 Electrical Connector Parts: OEM & Replacement (81 Parts)

The 2018 Ram Promaster 2500 has 81 electrical connector parts with verified fitment on this page — 29 part types and 14 brands, covering both the 3.0L L4 DIESEL Turbocharged and the 3.6L V6. Each part includes a manufacturer part number and application notes.

On the 2018 Ram Promaster 2500, the connector system supplies the pigtails and connector bodies that terminate the vehicle harness at lamps, sensors and modules. 24 parts of the 81 listed are Trailer Connector (12 parts), Fog / Driving Lamp Connector (6 parts) and Fuel Injector Connector (6 parts). The other 26 part types cover the remaining 57 parts.

A/C Refrigerant Pressure Switch Connector

Brand	Part Number	Markets	Notes	Buy
HOLSTEIN Fits: all 2018 Promaster 2500 engines	2HAR0060	🇺🇸 US 🇨🇦 CA 🇲🇽 MX		View on Amazon
STANDARD MOTOR PRODUCTS Fits: all 2018 Promaster 2500 engines	S2316	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Connector Shape: OvalNumber of Splice Connectors Included: 3	View on Amazon

This table covers the harness connectors at the A/C Refrigerant Pressure 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.

ABS Wheel Speed Sensor Connector

Brand	Part Number	Markets	Notes	Buy
HOLSTEIN Fits: all 2018 Promaster 2500 engines	2HAR0036	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Includes ABS Wheel Speed Sensor Wire Harness Fitment notes — HOLSTEIN 2HAR0036 Includes ABS Wheel Speed Sensor Wire Harness Front	View on Amazon
STANDARD MOTOR PRODUCTS Fits: all 2018 Promaster 2500 engines	S1686	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Connector Shape: OvalBlack Fitment notes — STANDARD MOTOR PRODUCTS S1686 Connector Shape: OvalBlackIncludes Wheel Speed Sensor Wiring Harness, ABS Wheel Speed Sensor Wire HarnessFront	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.

Air Intake / Charge Temperature Sensor Connector

Brand	Part Number	Markets	Notes	Buy
STANDARD MOTOR PRODUCTS Fits: 3.6L V6	S2492	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Intake Air	View on Amazon
WELLS Fits: 3.6L V6	1P4264	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Terminal Quantity: 4	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.

Blower Motor Control Module / Resistor Connector

Brand	Part Number	Markets	Notes	Buy
GPD Popular Fits: all 2018 Promaster 2500 engines	1712769	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Blower Motor Resistor Pigtailwith Square Connector	View on Amazon
FOUR SEASONS Fits: all 2018 Promaster 2500 engines	37263	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	4 Terminal MaleRectangular Connector	View on Amazon
GPD Fits: all 2018 Promaster 2500 engines	1713423	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Blower Motor Resistor Pigtailwith 4 Terminal(s) Fitment notes — GPD 1713423 Blower Motor Resistor Pigtailwith 4 Terminal(s)with Flat Connector	View on Amazon
HOLSTEIN Fits: all 2018 Promaster 2500 engines	2HAR0052	🇺🇸 US 🇨🇦 CA 🇲🇽 MX		View on Amazon
STANDARD MOTOR PRODUCTS Fits: all 2018 Promaster 2500 engines	S1573	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	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.

Body Wiring Harness / Connector

Brand	Part Number	Markets	Notes	Buy
MOPAR Fits: 3.6L V6	68346197AC	🇺🇸 US 🇨🇦 CA	Interior Fitment notes — MOPAR 68346197AC Interior Fits: 24V VVT Engine.Delete Passenger SeatExcept Radio Wiring Prep or Driver Swivel SeatVan Wheelbas or: 24V VVT Engine.Delete Passenger SeatExcept Radio Wiring Prep or Driver Swivel Seat119 WB or: 24V VVT Engine.Delete Passenger SeatExcept Radio Wiring Prep or Driver Swivel Seat2 door Convertibl or: 24V VVT Engine.Delete Passenger SeatExcept Radio Wiring Prep or Driver Swivel SeatGlazed Van	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.

Camshaft Position Sensor Connector

Brand	Part Number	Markets	Notes	Buy
STANDARD MOTOR PRODUCTS Fits: 3.6L V6	S2894	🇺🇸 US 🇨🇦 CA 🇲🇽 MX		View on Amazon
WELLS Fits: 3.6L V6	1P2668	🇺🇸 US 🇨🇦 CA 🇲🇽 MX		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.

Crankshaft Position Sensor Connector

Brand	Part Number	Markets	Notes	Buy
STANDARD MOTOR PRODUCTS Popular Fits: 3.6L V6	S2316	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Connector Shape: OvalNumber of Splice Connectors Included: 3	View on Amazon
HOLSTEIN Fits: 3.6L V6	2HAR0060	🇺🇸 US 🇨🇦 CA 🇲🇽 MX		View on Amazon
UNITED MOTOR PRODUCTS Fits: 3.6L V6	CON62	🇺🇸 US 🇨🇦 CA 🇲🇽 MX		View on Amazon
WALKER PRODUCTS Fits: 3.6L V6	2701145	🇺🇸 US 🇨🇦 CA 🇲🇽 MX		View on Amazon
WELLS Fits: 3.6L V6	1P2704	🇺🇸 US 🇨🇦 CA 🇲🇽 MX		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.

Door Wiring Harness / Connector

Brand	Part Number	Markets	Notes	Buy
MOPAR Popular Fits: all 2018 Promaster 2500 engines	68460701AB	🇺🇸 US 🇨🇦 CA	Rear Door Wiring Fitment notes — MOPAR 68460701AB Rear Door Wiring Fits: Rear Hinged DoorsExc. Rear Window Defroster113 WB or: Rear Hinged DoorsExc. Rear Window Defroster119 WB or: Rear Hinged DoorsExc. Rear Window Defroster2 door Convertible or: Rear Hinged DoorsExc. Rear Window DefrosterCab Chassis Wheelbase or: Rear Hinged DoorsExc. Rear Window DefrosterClub Cab 2 door 8' Box or: Rear Hinged DoorsExc. Rear Window DefrosterQuad Cab 4DR 8' Box/3-DR Hatch or: Rear Hinged DoorsExc. Rear Window DefrosterVan Wheelbase or: Rear Hinged DoorsExc. Rear Window DefrosterGlazed Van	View on Amazon
MOPAR Fits: all 2018 Promaster 2500 engines	68460501AA	🇺🇸 US 🇨🇦 CA	Rear Door Wiring Fitment notes — MOPAR 68460501AA Rear Door Wiring Fits: Rear Hinged DoorsExc. Rear Window Defroster113 WB or: Rear Hinged DoorsExc. Rear Window Defroster119 WB or: Rear Hinged DoorsExc. Rear Window Defroster2 door Convertible or: Rear Hinged DoorsExc. Rear Window DefrosterCab Chassis Wheelbase or: Rear Hinged DoorsExc. Rear Window DefrosterClub Cab 2 door 8' Box or: Rear Hinged DoorsExc. Rear Window DefrosterQuad Cab 4DR 8' Box/3-DR Hatch or: Rear Hinged DoorsExc. Rear Window DefrosterVan Wheelbase or: Rear Hinged DoorsExc. Rear Window DefrosterGlazed Van	View on Amazon
MOPAR Fits: all 2018 Promaster 2500 engines	68169389AG	🇺🇸 US 🇨🇦 CA	Sliding Do Fitment notes — MOPAR 68169389AG Sliding Do or: Left Wiring Fits: Left Sliding Door with No Glass or: Left Sliding Door with Fixed Glass119 WB or: Left Sliding Door with No Glass or: Left Sliding Door with Fixed Glass2 door Convertibl or: Left Sliding Door with No Glass or: Left Sliding Door with Fixed GlassVan Wheelbas or: Left Sliding Door with No Glass or: Left Sliding Door with Fixed GlassGlazed Van	View on Amazon
MOPAR Fits: all 2018 Promaster 2500 engines	68233678AD	🇺🇸 US 🇨🇦 CA	Sliding Do Fitment notes — MOPAR 68233678AD Sliding Do or: Left WiringSliding Door Fits: Left Sliding Door with No Glass or: Left Sliding Door with Fixed GlassVan Wheelbas or: Left Sliding Door with No Glass or: Left Sliding Door with Fixed Glass113 WB	View on Amazon
MOPAR Fits: all 2018 Promaster 2500 engines	68254100AE	🇺🇸 US 🇨🇦 CA	Rear Door Wiring Fitment notes — MOPAR 68254100AE Rear Door Wiring Fits: Rear Hinged Doors, Rear Window Defroster113 WB or: Rear Hinged Doors, Rear Window Defroster119 WB or: Rear Hinged Doors, Rear Window Defroster2 door Convertible or: Rear Hinged Doors, Rear Window DefrosterCab Chassis Wheelbase or: Rear Hinged Doors, Rear Window DefrosterClub Cab 2 door 8' Box or: Rear Hinged Doors, Rear Window DefrosterQuad Cab 4DR 8' Box/3-DR Hatch or: Rear Hinged Doors, Rear Window DefrosterVan Wheelbase or: Rear Hinged Doors, Rear Window DefrosterGlazed Van	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.

Engine Block Heater Connector

Brand	Part Number	Markets	Notes	Buy
MOPAR Fits: 3.6L V6	68194731AC	🇺🇸 US 🇨🇦 CA	Fits 24V VVT Engine.Engine Block Heater Fitment notes — MOPAR 68194731AC Fits: 24V VVT Engine.Engine Block Heater119 WB or: 24V VVT Engine.Engine Block HeaterVan Wheelbas or: 24V VVT Engine.Engine Block Heater113 WB or: 24V VVT Engine.Engine Block HeaterCab Chassis Wheelbas or: 24V VVT Engine.Engine Block HeaterClub Cab 2 door 8' Boxor 24V VVT Engine.Engine Block HeaterGlazed Vanor 24V VVT Engine.Engine Block HeaterQuad Cab 4DR 8' Box/3-DR Hatchor 24V VVT Engine.Engine Block Heater2 door Convertible	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.

Engine Wiring Harness / Connector

Brand	Part Number	Markets	Notes	Buy
MOPAR Fits: 3.6L V6	4727656AO	🇺🇸 US 🇨🇦 CA	Fits 24V VVT Engine.A/C Fitment notes — MOPAR 4727656AO Fits: 24V VVT Engine.A/CVan Wheelbas or: 24V VVT Engine.A/C113 WB or: 24V VVT Engine.A/C119 WB or: 24V VVT Engine.A/CCab Chassis Wheelbas or: 24V VVT Engine.A/CClub Cab 2 door 8' Boxor 24V VVT Engine.A/CGlazed Vanor 24V VVT Engine.A/CQuad Cab 4DR 8' Box/3-DR Hatchor 24V VVT Engine.A/C2 door Convertible	View on Amazon
MOPAR Fits: 3.6L V6	4727656AL	🇺🇸 US 🇨🇦 CA	Fits 24V VVT Engine.A/C Fitment notes — MOPAR 4727656AL Fits: 24V VVT Engine.A/CVan Wheelbas or: 24V VVT Engine.A/C113 WB or: 24V VVT Engine.A/C119 WB or: 24V VVT Engine.A/CCab Chassis Wheelbas or: 24V VVT Engine.A/CClub Cab 2 door 8' Boxor 24V VVT Engine.A/CGlazed Vanor 24V VVT Engine.A/CQuad Cab 4DR 8' Box/3-DR Hatchor 24V VVT Engine.A/C2 door Convertible	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.

Fog / Driving Lamp Connector

Brand	Part Number	Markets	Notes	Buy
STANDARD MOTOR PRODUCTS Popular Fits: all 2018 Promaster 2500 engines	HP3835	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	HandypackConnector Shape: Oval Fitment notes — STANDARD MOTOR PRODUCTS HP3835 HandypackConnector Shape: OvalWiring Harness Length (mm): 311.15	View on Amazon
STANDARD MOTOR PRODUCTS Popular Fits: all 2018 Promaster 2500 engines	S553	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Connector Shape: OvalContact Terminal Material: Metal Fitment notes — STANDARD MOTOR PRODUCTS S553 Connector Shape: OvalContact Terminal Material: MetalNumber of Splice Connectors Included: 0Wiring Harness Length (In): 12.25Wiring Harness Length (mm): 311.15	View on Amazon
ACDELCO Fits: all 2018 Promaster 2500 engines	PT2298	🇺🇸 US 🇨🇦 CA	GoldHeight (In): 1.5 in Fitment notes — ACDELCO PT2298 GoldHeight (In): 1.5 inShape: Rectangle	View on Amazon
MOPAR Fits: all 2018 Promaster 2500 engines	4727679AA	🇺🇸 US 🇨🇦 CA	Jumper Wiring Fitment notes — MOPAR 4727679AA Jumper Wiring Fits: Exc. FOG LAMPS or: Fog Lamps2 Door Convertibl or: Fog Lamps119 WB or: Fog Lamps113 WB or: Fog LampsVan Wheelbas or: Fog LampsCab Chassis Wheelbas or: Fog LampsClub Cab 2 door 8' Boxor Fog LampsGlazed Vanor Fog LampsQuad Cab 4DR 8' Box/3-DR Hatch	View on Amazon
MOPAR Fits: all 2018 Promaster 2500 engines	4727679AB	🇺🇸 US 🇨🇦 CA	Jumper Wiring Fitment notes — MOPAR 4727679AB Jumper Wiring Fits: Exc. FOG LAMPS or: Fog Lamps2 Door Convertibl or: Fog Lamps119 WB or: Fog Lamps113 WB or: Fog LampsVan Wheelbas or: Fog LampsCab Chassis Wheelbas or: Fog LampsClub Cab 2 door 8' Boxor Fog LampsGlazed Vanor Fog LampsQuad Cab 4DR 8' Box/3-DR Hatch	View on Amazon
WELLS Fits: all 2018 Promaster 2500 engines	1P1416	🇺🇸 US 🇨🇦 CA 🇲🇽 MX		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.

Fuel Injector Connector

Brand	Part Number	Markets	Notes	Buy
STANDARD MOTOR PRODUCTS Popular Fits: 3.6L V6	HP4347	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Handypack	View on Amazon
WELLS Popular Fits: 3.6L V6	1P2047	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Wiring Harness Length: 20.22 In	View on Amazon
GB REMANUFACTURING Fits: 3.6L V6	5191	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Base Model	View on Amazon
HOLSTEIN Fits: 3.6L V6	2HAR0035	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Includes ABS Wheel Speed Sensor Wire Harness	View on Amazon
MOPAR Fits: 3.6L V6	5148037AM	🇺🇸 US 🇨🇦 CA	Fits 24V VVT Engine.119 WB Fitment notes — MOPAR 5148037AM Fits: 24V VVT Engine.119 WB or: 24V VVT Engine.2 Door Convertibl or: 24V VVT Engine.Van Wheelbas or: 24V VVT Engine.113 WB or: 24V VVT Engine.Cab Chassis Wheelbas or: 24V VVT Engine.Club Cab 2 door 8' Boxor 24V VVT Engine.Glazed Vanor 24V VVT Engine.Quad Cab 4DR 8' Box/3-DR Hatch	View on Amazon
STANDARD MOTOR PRODUCTS Fits: 3.6L V6	S1895	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Number of Splice Connectors Included: 2	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.

Headlamp Wiring Harness / Connector

Brand	Part Number	Markets	Notes	Buy
MOPAR Fits: 3.0L L4 DIESEL Turbocharged	68348108AF	🇺🇸 US 🇨🇦 CA	Fits Inline ECO Engine.to Dash Fitment notes — MOPAR 68348108AF Fits: Inline ECO Engine.to DashA/C, Security AlarmExc. Hydraulic Assist Brake Booster113 WB or: Inline ECO Engine.to DashA/C, Security AlarmExc. Hydraulic Assist Brake Booster119 WB or: Inline ECO Engine.to DashA/C, Security AlarmExc. Hydraulic Assist Brake Booster2 door Convertibl or: Inline ECO Engine.to DashA/C, Security AlarmExc. Hydraulic Assist Brake BoosterCab Chassis Wheelbas or: Inline ECO Engine.to DashA/C, Security AlarmExc. Hydraulic Assist Brake BoosterClub Cab 2 door 8' Boxor Inline ECO Engine.to DashA/C, Security AlarmExc. Hydraulic Assist Brake BoosterQuad Cab 4DR 8' Box/3-DR Hatchor Inline ECO Engine.to DashA/C, Security AlarmExc. Hydraulic Assist Brake BoosterVan Wheelbas or: Inline ECO Engine.to DashA/C, Security AlarmExc. Hydraulic Assist Brake BoosterGlazed Van	View on Amazon
MOPAR Fits: 3.0L L4 DIESEL Turbocharged	68349103AF	🇺🇸 US 🇨🇦 CA	Fits Inline ECO Engine.to Dash Fitment notes — MOPAR 68349103AF Fits: Inline ECO Engine.to DashA/C, Hydraulic Assist Brake Booster, Security Alarm113 WB or: Inline ECO Engine.to DashA/C, Hydraulic Assist Brake Booster, Security Alarm119 WB or: Inline ECO Engine.to DashA/C, Hydraulic Assist Brake Booster, Security Alarm2 door Convertibl or: Inline ECO Engine.to DashA/C, Hydraulic Assist Brake Booster, Security AlarmCab Chassis Wheelbas or: Inline ECO Engine.to DashA/C, Hydraulic Assist Brake Booster, Security AlarmClub Cab 2 door 8' Boxor Inline ECO Engine.to DashA/C, Hydraulic Assist Brake Booster, Security AlarmQuad Cab 4DR 8' Box/3-DR Hatchor Inline ECO Engine.to DashA/C, Hydraulic Assist Brake Booster, Security AlarmVan Wheelbas or: Inline ECO Engine.to DashA/C, Hydraulic Assist Brake Booster, Security AlarmGlazed Van	View on Amazon
MOPAR Fits: 3.0L L4 DIESEL Turbocharged	68349104AF	🇺🇸 US 🇨🇦 CA	Fits Inline ECO Engine.to Dash Fitment notes — MOPAR 68349104AF Fits: Inline ECO Engine.to DashA/C, Hydraulic Assist Brake BoosterExc. Security Alarm113 WB or: Inline ECO Engine.to DashA/C, Hydraulic Assist Brake BoosterExc. Security Alarm119 WB or: Inline ECO Engine.to DashA/C, Hydraulic Assist Brake BoosterExc. Security Alarm2 door Convertibl or: Inline ECO Engine.to DashA/C, Hydraulic Assist Brake BoosterExc. Security AlarmCab Chassis Wheelbas or: Inline ECO Engine.to DashA/C, Hydraulic Assist Brake BoosterExc. Security AlarmClub Cab 2 door 8' Boxor Inline ECO Engine.to DashA/C, Hydraulic Assist Brake BoosterExc. Security AlarmQuad Cab 4DR 8' Box/3-DR Hatchor Inline ECO Engine.to DashA/C, Hydraulic Assist Brake BoosterExc. Security AlarmVan Wheelbas or: Inline ECO Engine.to DashA/C, Hydraulic Assist Brake BoosterExc. Security AlarmGlazed Van	View on Amazon
MOPAR Fits: 3.0L L4 DIESEL Turbocharged	68349112AF	🇺🇸 US 🇨🇦 CA	Fits Inline ECO Engine.to Dash Fitment notes — MOPAR 68349112AF Fits: Inline ECO Engine.to DashA/CExc. Security Alarm or Hydraulic Assist Brake Booster113 WB or: Inline ECO Engine.to DashA/CExc. Security Alarm or Hydraulic Assist Brake Booster119 WB or: Inline ECO Engine.to DashA/CExc. Security Alarm or Hydraulic Assist Brake Booster2 door Convertibl or: Inline ECO Engine.to DashA/CExc. Security Alarm or Hydraulic Assist Brake BoosterCab Chassis Wheelbas or: Inline ECO Engine.to DashA/CExc. Security Alarm or Hydraulic Assist Brake BoosterClub Cab 2 door 8' Boxor Inline ECO Engine.to DashA/CExc. Security Alarm or Hydraulic Assist Brake BoosterQuad Cab 4DR 8' Box/3-DR Hatchor Inline ECO Engine.to DashA/CExc. Security Alarm or Hydraulic Assist Brake BoosterVan Wheelbas or: Inline ECO Engine.to DashA/CExc. Security Alarm or Hydraulic Assist Brake BoosterGlazed Van	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.

Ignition Coil Connector

Brand	Part Number	Markets	Notes	Buy
STANDARD MOTOR PRODUCTS Fits: 3.6L V6	S2860	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Connector Shape: OvalGauge: 16 Gauge Fitment notes — STANDARD MOTOR PRODUCTS S2860 Connector Shape: OvalGauge: 16 GaugeHarness LengthInches: 13Terminal Type: Bladeblack	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.

Knock / Detonation Sensor Connector

Brand	Part Number	Markets	Notes	Buy
ACDELCO Fits: 3.6L V6	PT2164	🇺🇸 US 🇨🇦 CA	Gold	View on Amazon
MOPAR Fits: 3.6L V6	68360191AA	🇺🇸 US 🇨🇦 CA	Knock, Oil Pressure, & Temperature Sensor Wiring Fitment notes — MOPAR 68360191AA Knock, Oil Pressure, & Temperature Sensor Wiring Fits: 24V VVT Engine.119 WB or: 24V VVT Engine.2 Door Convertibl or: 24V VVT Engine.Van Wheelbas or: 24V VVT Engine.113 WB or: 24V VVT Engine.Cab Chassis Wheelbas or: 24V VVT Engine.Club Cab 2 door 8' Boxor 24V VVT Engine.Glazed Vanor 24V VVT Engine.Quad Cab 4DR 8' Box/3-DR Hatch	View on Amazon
STANDARD MOTOR PRODUCTS Fits: 3.6L V6	HP3860	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	HandypackTerminal Type: Blade Fitment notes — STANDARD MOTOR PRODUCTS HP3860 HandypackTerminal Type: BladeBlack	View on Amazon
STANDARD MOTOR PRODUCTS Fits: 3.6L V6	S697	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Connector Shape: RectangleHarness Length Fitment notes — STANDARD MOTOR PRODUCTS S697 Connector Shape: RectangleHarness Lengthinches: 8.5Number of Splice Connectors Included: 0Terminal Type: BladeWiring Harness Length (mm): 215.9Black	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.

Manifold Pressure (MAP) Sensor Connector

Brand	Part Number	Markets	Notes	Buy
STANDARD MOTOR PRODUCTS Fits: 3.6L V6	S2916	🇺🇸 US 🇨🇦 CA 🇲🇽 MX		View on Amazon

This table covers the harness connectors at the Manifold Pressure (MAP) 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.

Oil Pressure Sender / Switch Connector

Brand	Part Number	Markets	Notes	Buy
STANDARD MOTOR PRODUCTS Fits: 3.6L V6	S2937	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	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.

Park Assist (PAS) Camera Connector

Brand	Part Number	Markets	Notes	Buy
METRA Fits: all 2018 Promaster 2500 engines	AXACCH6	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Camera Add-On Package	View on Amazon

This table covers the harness connectors at the Park Assist (PAS) Camera. 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.

Power Door Lock Connector

Brand	Part Number	Markets	Notes	Buy
MOPAR Fits: all 2018 Promaster 2500 engines	68550907AA	🇺🇸 US 🇨🇦 CA	Connector Plate Fitment notes — MOPAR 68550907AA Connector Plate Fits: Right119 WB or: Right113 WB or: Right2 Door Convertible or: RightVan Wheelbase or: RightGLAZED VAN or: LeftLeft Sliding Door with No Glass or: Left Sliding Door with Fixed Glass113 WB or: LeftLeft Sliding Door with No Glass or: Left Sliding Door with Fixed Glass119 WB or: LeftLeft Sliding Door with No Glass or: Left Sliding Door with Fixed Glass2 door Convertible or: LeftLeft Sliding Door with No Glass or: Left Sliding Door with Fixed GlassVan Wheelbase or: LeftLeft Sliding Door with No Glass or: Left Sliding Door with Fixed GlassGlazed Van	View on Amazon
MOPAR Fits: all 2018 Promaster 2500 engines	68100641AB	🇺🇸 US 🇨🇦 CA	Connector Plate Fitment notes — MOPAR 68100641AB Connector Plate Fits: Right119 WB or: Right113 WB or: Right2 Door Convertible or: RightVan Wheelbase or: RightGLAZED VAN or: LeftLeft Sliding Door with No Glass or: Left Sliding Door with Fixed Glass113 WB or: LeftLeft Sliding Door with No Glass or: Left Sliding Door with Fixed Glass119 WB or: LeftLeft Sliding Door with No Glass or: Left Sliding Door with Fixed Glass2 door Convertible or: LeftLeft Sliding Door with No Glass or: Left Sliding Door with Fixed GlassVan Wheelbase	View on Amazon

This table covers the harness connectors at the Power Door Lock. 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.

Radio Connector

Brand	Part Number	Markets	Notes	Buy
METRA Fits: all 2018 Promaster 2500 engines	XSVI6524BT	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Radio Replacement/Menu Retention	View on Amazon

This table covers the harness connectors at the Radio. 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.

Repair Harness

Brand	Part Number	Markets	Notes	Buy
ROSTRA Fits: all 2018 Promaster 2500 engines	3500172	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	External Harness & Connector Repair Kit	View on Amazon

This table covers the Repair harnesses.

Speed Sensor Connector

Brand	Part Number	Markets	Notes	Buy
ULTRA-POWER Fits: 3.6L V6	2701055	🇺🇸 US 🇨🇦 CA	TRANS INPUT AND OUTPUT SHAFT SPEED SENSORVEHICLE SPEED	View on Amazon
WALKER PRODUCTS Fits: 3.6L V6	2701055	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Transmission Input and Output Shaft Speed Sensor	View on Amazon

This table covers the harness connectors at the 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.

Temperature Sender / Sensor Connector

Brand	Part Number	Markets	Notes	Buy
STANDARD MOTOR PRODUCTS Fits: all 2018 Promaster 2500 engines	HP4325	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	HandypackConnector Shape: Rectangle Fitment notes — STANDARD MOTOR PRODUCTS HP4325 HandypackConnector Shape: RectangleHarness Length16-1/2 "Terminal Type: Blade	View on Amazon
STANDARD MOTOR PRODUCTS Fits: all 2018 Promaster 2500 engines	S1024	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Connector Shape: RectangleHarness Length Fitment notes — STANDARD MOTOR PRODUCTS S1024 Connector Shape: RectangleHarness Length16-1/2 "Terminal Type: Blade	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.

Trailer Adapter Connector

Brand	Part Number	Markets	Notes	Buy
CURT Fits: all 2018 Promaster 2500 engines	57101	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	7-Way Round RV To 4-Way Flat Adapter Fitment notes — CURT 57101 7-Way Round RV To 4-Way Flat Adapter with Back Up AlarmGM/Ford Plugwith Factory Tow Package	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.

Trailer Connector

Brand	Part Number	Markets	Notes	Buy
CURT Popular Fits: all 2018 Promaster 2500 engines	56415	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Replacement 7-Way RV Blade OEM SocketTwist-In Fitment notes — CURT 56415 Replacement 7-Way RV Blade OEM SocketTwist-In with Factory Tow Package	View on Amazon
CURT Popular Fits: all 2018 Promaster 2500 engines	55415	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Replacement 7-Way RV Blade OEM Socket Fitment notes — CURT 55415 Replacement 7-Way RV Blade OEM Socket with Factory Tow Package	View on Amazon
CURT Popular Fits: all 2018 Promaster 2500 engines	56229	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	7-Way USCAR Electrical ConnectorLength: 24 in. Fitment notes — CURT 56229 7-Way USCAR Electrical ConnectorLength: 24 in.Bonded Wire with Factory Tow Package	View on Amazon
CURT Fits: all 2018 Promaster 2500 engines	55515	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Custom Wiring ConnectorOE 4-Way Flat Fitment notes — CURT 55515 Custom Wiring ConnectorOE 4-Way FlatPlugs Into USCAR Replacement2-Wire Systemwith Factory Tow Package	View on Amazon
CURT Fits: all 2018 Promaster 2500 engines	56515	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Custom Wiring Connector5-Way Flat Fitment notes — CURT 56515 Custom Wiring Connector5-Way Flat 2-Wire Systemwith Factory Tow Package	View on Amazon
CURT Fits: all 2018 Promaster 2500 engines	55774	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	OEM Vehicle to Trailer Connector with Harness7-Way and 4-Way Fitment notes — CURT 55774 OEM Vehicle to Trailer Connector with Harness7-Way and 4-Way with Factory Tow Package	View on Amazon
CURT Fits: all 2018 Promaster 2500 engines	57015	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	OEM Replacement Dual-Output 7 and 4 Way ConnectorPlugs Into USCAR Socket	View on Amazon
CURT Fits: all 2018 Promaster 2500 engines	55384	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Custom Wiring Connector4-Way Flat Fitment notes — CURT 55384 Custom Wiring Connector4-Way FlatRetains Use of 7 Way Round Connector 2-Wire Systemwith Factory Tow Package	View on Amazon
CURT Fits: all 2018 Promaster 2500 engines	57020	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	OEM Replacement Dual-Output 7 and 4 Way ConnectorPackaged Fitment notes — CURT 57020 OEM Replacement Dual-Output 7 and 4 Way ConnectorPackaged Factory TowPlugs Into USCAR	View on Amazon
CURT Fits: all 2018 Promaster 2500 engines	56584	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Custom Wiring Harness5-Way Flat Fitment notes — CURT 56584 Custom Wiring Harness5-Way FlatRetains Use Of 7-Way OEM 2-Wire Systemwith Factory Tow Package	View on Amazon
CURT Fits: all 2018 Promaster 2500 engines	56209	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Custom Wiring Harness4-Way Flat Fitment notes — CURT 56209 Custom Wiring Harness4-Way Flat 3-Wire System	View on Amazon
CURT Fits: all 2018 Promaster 2500 engines	56478	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Custom Wiring Harness4-Way Flat Output	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.

Trailer Extension Connector

Brand	Part Number	Markets	Notes	Buy
CURT Fits: all 2018 Promaster 2500 engines	56475	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Custom Wiring Harness Extension Fitment notes — CURT 56475 Custom Wiring Harness Extension 20"Uscar To Uscarwith Factory Tow Package	View on Amazon

This table covers the harness connectors at the Trailer Extension. 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.

Vapor Canister Connector

Brand	Part Number	Markets	Notes	Buy
STANDARD MOTOR PRODUCTS Fits: 3.6L V6	HP4325	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	HandypackConnector Shape: Rectangle Fitment notes — STANDARD MOTOR PRODUCTS HP4325 HandypackConnector Shape: RectangleHarness Length16-1/2 "Terminal Type: Blade	View on Amazon
STANDARD MOTOR PRODUCTS Fits: 3.6L V6	S1024	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Connector Shape: RectangleHarness Length Fitment notes — STANDARD MOTOR PRODUCTS S1024 Connector Shape: RectangleHarness Length16-1/2 "Terminal Type: Blade	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.

Vapor Canister Purge Valve / Solenoid Connector

Brand	Part Number	Markets	Notes	Buy
STANDARD MOTOR PRODUCTS Fits: 3.6L V6	HP4325	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	HandypackConnector Shape: Rectangle Fitment notes — STANDARD MOTOR PRODUCTS HP4325 HandypackConnector Shape: RectangleHarness Length16-1/2 "Terminal Type: Blade Valve Only	View on Amazon
STANDARD MOTOR PRODUCTS Fits: 3.6L V6	S1024	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Connector Shape: RectangleHarness Length Fitment notes — STANDARD MOTOR PRODUCTS S1024 Connector Shape: RectangleHarness Length16-1/2 "Terminal Type: Blade Valve Only	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.

Vapor Leak Detection Pump Connector

Brand	Part Number	Markets	Notes	Buy
ROSTRA Fits: 3.6L V6	610161	🇺🇸 US 🇨🇦 CA 🇲🇽 MX		View on Amazon
STANDARD MOTOR PRODUCTS Fits: all 2018 Promaster 2500 engines	HP4325	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	HandypackConnector Shape: Rectangle Fitment notes — STANDARD MOTOR PRODUCTS HP4325 HandypackConnector Shape: RectangleHarness Length16-1/2 "Terminal Type: Blade	View on Amazon
STANDARD MOTOR PRODUCTS Fits: all 2018 Promaster 2500 engines	S1024	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Connector Shape: RectangleHarness Length Fitment notes — STANDARD MOTOR PRODUCTS S1024 Connector Shape: RectangleHarness Length16-1/2 "Terminal Type: Blade	View on Amazon
WELLS Fits: 3.6L V6	1P1626	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	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.

Buying Electrical Connector Parts for a 2018 Ram Promaster 2500

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: Trailer Connector and Fog / Driving Lamp Connector .

Frequently Asked Questions

How many electrical connector parts fit the 2018 Ram Promaster 2500?

Our catalog currently lists 81 electrical connector parts for the 2018 Ram Promaster 2500 across 29 subcategories and 14 brands, covering both the 3.0L L4 DIESEL Turbocharged and the 3.6L V6. Each part is matched to the engine(s) it fits.

Do electrical connector parts differ between 2018 Ram Promaster 2500 engines?

Some do. 43 parts fit every engine; the other 38 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 Promaster 2500?

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 Promaster 2500 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 Promaster 2500?

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 Promaster 2500

Belt Drive Body & Lamp Assembly Brake & Wheel Hub Cooling System Drivetrain Electrical Electrical Bulb & Socket Electrical Switch & Relay Engine Exhaust & Emission Fuel & Air Heat & Air Conditioning Ignition Interior Steering Suspension Automatic Transmission Wheel Wiper & Washer

Electrical Connector Parts for Other Ram Promaster 2500 Years

2026 Ram Promaster 2500 2025 Ram Promaster 2500 2024 Ram Promaster 2500 2023 Ram Promaster 2500 2022 Ram Promaster 2500 2021 Ram Promaster 2500 2020 Ram Promaster 2500 2019 Ram Promaster 2500 2017 Ram Promaster 2500 2016 Ram Promaster 2500 2015 Ram Promaster 2500 2014 Ram Promaster 2500

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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.

Published by AutoFactsDB from manufacturer application data. How fitment is matched Report a fitment error