157 Electrical switch & relay parts are listed for the 2012 Ram 2500, in 38 part types, covering both the 5.7L V8 and the 6.7L L6 DIESEL Turbocharged. Each one has a brand, a manufacturer part number and notes that say where it fits.
On the 2012 Ram 2500, the switch and relay system covers the switches, relays and flashers that route power to everything the driver touches. Most of the listed parts are Power Window Switch (20 parts), Oil Pressure Sender / Switch (19 parts) and Power Seat Switch (17 parts). The other 35 part types cover the remaining 101 parts.
The 2012 Ram 2500 was sold with both the 5.7L V8 and the 6.7L L6 DIESEL Turbocharged. 120 parts fit every engine; the other 37 are engine-specific. Each part shows which engine(s) it fits.
The most listed brands for 2012 Ram 2500 electrical switch & relay parts are WELLS (37 parts), MOPAR (35 parts) and STANDARD MOTOR PRODUCTS (28 parts), plus 15 more brands. Quality grades include Standard Replacement and Economy.
21 parts on this 2012 Ram 2500 page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including UAC SW10080C (A/C Refrigerant Pressure Switch) and MOPAR 56038914AA (Brake Light Switch). Click any part number to see every vehicle that part fits.
4WD Indicator Light Switch
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: all 2012 2500 engines | 600555 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 271 Series Transfer CaseBW 44-47 Series Transfer Case | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: all 2012 2500 engines | TCA64 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | On Transfer Case | View on Amazon |
| WELLS Fits: all 2012 2500 engines | 1S4129 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | with NVG271 or BW44-46 Transfer Case | View on Amazon |
This table covers the 4WD Indicator Light switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
3 4WD Indicator Light Switch parts are listed for the 2012 Ram 2500, from DORMAN, STANDARD MOTOR PRODUCTS and WELLS. All of them fit every engine offered in the 2012 2500.
In the Economy grade, DORMAN supplies 1 part: the catalog's value-priced group. A representative part number is DORMAN 600555.
The Standard Replacement section lists 2 options from STANDARD MOTOR PRODUCTS and WELLS — built to original-equipment specification. STANDARD MOTOR PRODUCTS TCA64 is listed in this group.
This group includes DORMAN 600555, STANDARD MOTOR PRODUCTS TCA64 and WELLS 1S4129.
4WD Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: all 2012 2500 engines | 4602973AB | 🇺🇸 US 🇨🇦 CA | Fits Electric Shift-On-The-Fly Transfer CaseMega Cabor Electric Shift-On-The-Fly Transfer Case | View on Amazon |
| MOPAR Fits: all 2012 2500 engines | 5083138AA | 🇺🇸 US 🇨🇦 CA | 5 Position | View on Amazon |
| WELLS Fits: all 2012 2500 engines | 1S4129 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | with NVG271 or BW44-46 Transfer Case, Located on Transfer Case | View on Amazon |
| WELLS Fits: all 2012 2500 engines | 1S15812 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Shift-on-the-Fly 4WD | View on Amazon |
This table covers the 4WD switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
4 4WD Switch parts for the 2012 Ram 2500 come from 2 brands — MOPAR and WELLS. Every part fits both the 5.7L V8 and the 6.7L L6 DIESEL Turbocharged.
Part numbers include MOPAR 4602973AB, MOPAR 5083138AA and WELLS 1S4129, among others listed above.
A/C Pressure Safety Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VEMO Fits: all 2012 2500 engines | V33730052 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Laramie or Laramie Longhorn or Outdoorsman or Power Wagon or SLT Model or ST Model | View on Amazon |
This table covers the A/C Pressure Safety switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
One part is listed for the 2012 Ram 2500 — VEMO V33730052.
A/C Refrigerant Pressure Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| UAC Popular Fits: all 2012 2500 engines | SW10080C | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Pressure Transducer | View on Amazon |
| FACET Fits: all 2012 2500 engines | 250074 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| FOUR SEASONS Fits: all 2012 2500 engines | 37368 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Pressure Switch | View on Amazon |
| GPD Fits: all 2012 2500 engines | 1711938 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Pressure Transducer | View on Amazon |
| WELLS Fits: all 2012 2500 engines | 1S15798 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | CUT-OFF | View on Amazon |
This table covers the pressure switches on the A/C circuit. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
5 A/C Refrigerant Pressure Switch parts for the 2012 Ram 2500 come from 5 brands — UAC, FACET, FOUR SEASONS and 2 other brands. The "Popular" part is UAC SW10080C. Every part fits both the 5.7L V8 and the 6.7L L6 DIESEL Turbocharged.
This group includes UAC SW10080C, FACET 250074 and FOUR SEASONS 37368 and the remaining parts above.
A/C Thermo Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GPD Fits: all 2012 2500 engines | 1713019 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Evaporator Temperature Sensor45 Degree Angle | View on Amazon |
This table covers the A/C Thermo switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
One part is listed for the 2012 Ram 2500 — GPD 1713019.
Accessory Power Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: all 2012 2500 engines | RY1757 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Micro Relay | View on Amazon |
| WELLS Fits: all 2012 2500 engines | 1R2489 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Mounting Hardware Included: No | View on Amazon |
This table covers the relays that control the Accessory Power circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.
2 Accessory Power Relay parts are listed for the 2012 Ram 2500, from STANDARD MOTOR PRODUCTS and WELLS. All of them fit every engine offered in the 2012 2500.
Part numbers include STANDARD MOTOR PRODUCTS RY1757 and WELLS 1R2489.
Adjustable Pedal Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: all 2012 2500 engines | 56046113AA | 🇺🇸 US 🇨🇦 CA | Fits Power Adjustable Pedals with Memory or Power Adjustable PedalsHeated Steering Wheel | View on Amazon |
| WELLS Fits: all 2012 2500 engines | 1S16026 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the Adjustable Pedal switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
2 Adjustable Pedal Switch parts for the 2012 Ram 2500 come from 2 brands — MOPAR and WELLS. Every part fits both the 5.7L V8 and the 6.7L L6 DIESEL Turbocharged.
This group includes MOPAR 56046113AA and WELLS 1S16026.
Air Intake Heater Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 6.7L L6 DIESEL Turbocharged | 904300 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| ROSTRA Fits: 6.7L L6 DIESEL Turbocharged | 600225 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| STANDARD MOTOR PRODUCTS Fits: 6.7L L6 DIESEL Turbocharged | RY1779 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| WELLS Fits: all 2012 2500 engines | 1R2398 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Cover Material: Plastic, Metal | View on Amazon |
This table covers the relays that control the Air Intake Heater circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.
4 Air Intake Heater Relay parts are listed for the 2012 Ram 2500, from DORMAN, ROSTRA, STANDARD MOTOR PRODUCTS and 1 other brand. 1 part fits every engine; the other 3 are engine-specific.
Listed part numbers: DORMAN 904300, ROSTRA 600225 and STANDARD MOTOR PRODUCTS RY1779, plus the other parts above.
Back Up / Reverse Lamp Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ROSTRA Fits: all 2012 2500 engines | 670117 | 🇺🇸 US 🇨🇦 CA | Manual trans. | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: all 2012 2500 engines | NS485 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| WELLS Fits: 6.7L L6 DIESEL Turbocharged | 1S5003 | 🇺🇸 US 🇨🇦 CA | Manual trans. | View on Amazon |
This table covers the Back Up / Reverse Lamp switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
3 Back Up / Reverse Lamp Switch parts for the 2012 Ram 2500 come from 3 brands — ROSTRA, STANDARD MOTOR PRODUCTS and WELLS. 2 parts fit every engine; the other 1 is engine-specific.
Part numbers include ROSTRA 670117, STANDARD MOTOR PRODUCTS NS485 and WELLS 1S5003.
Brake Light Switch
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: all 2012 2500 engines | 901275 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| VEMO Fits: 6.7L L6 DIESEL Turbocharged | V33730041 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Popular Fits: all 2012 2500 engines | 56038914AA | 🇺🇸 US 🇨🇦 CA | Fits MEGA CAB | View on Amazon |
| ROSTRA Fits: all 2012 2500 engines | 620033 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Connector Shape: Rectangular | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 5.7L V8 | SLS513 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| WELLS Fits: all 2012 2500 engines | 1S11820 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Mounting Hardware Included: No | View on Amazon |
This table covers the pedal-mounted switch that turns on the brake lamps. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
6 Brake Light Switch parts for the 2012 Ram 2500 come from 6 brands — DORMAN, VEMO, MOPAR and 3 other brands. The "Popular" part is MOPAR 56038914AA. 4 parts fit every engine; the other 2 are engine-specific.
The Economy section: 2 options from DORMAN and VEMO. DORMAN 901275 is listed in this group.
Standard Replacement: 4 parts, from MOPAR, ROSTRA, STANDARD MOTOR PRODUCTS and 1 other brand. A representative part number is MOPAR 56038914AA.
Listed part numbers: MOPAR 56038914AA, DORMAN 901275 and VEMO V33730041, plus the other parts above.
Cruise Control Switch
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKP Fits: all 2012 2500 engines | SKCCA1235 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ROSTRA Fits: all 2012 2500 engines | 660101 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| STANDARD MOTOR PRODUCTS Fits: all 2012 2500 engines | CCA1235 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| WELLS Fits: all 2012 2500 engines | 1S7713 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Switch Mounting Type: Bolt On | View on Amazon |
This table covers the Cruise Control switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
4 Cruise Control Switch parts are listed for the 2012 Ram 2500, from SKP, ROSTRA, STANDARD MOTOR PRODUCTS and 1 other brand. All of them fit every engine offered in the 2012 2500.
Economy: 1 part, from SKP. A representative part number is SKP SKCCA1235.
The Standard Replacement section: 3 options from ROSTRA, STANDARD MOTOR PRODUCTS and WELLS. ROSTRA 660101 is listed in this group.
This group includes SKP SKCCA1235, ROSTRA 660101 and STANDARD MOTOR PRODUCTS CCA1235 and the remaining parts above.
Dimmer Switch
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SHEE-MAR Fits: all 2012 2500 engines | SM414 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Dimmer, Turn Signal, Multifunction, Wiper/Washer Switch | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ROSTRA Fits: all 2012 2500 engines | 640046 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| STANDARD MOTOR PRODUCTS Fits: all 2012 2500 engines | CBS1925 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| WELLS Fits: all 2012 2500 engines | 1S11313 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the dimmer switches that select headlamp high and low beam. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
4 Dimmer Switch parts are listed for the 2012 Ram 2500, from SHEE-MAR, ROSTRA, STANDARD MOTOR PRODUCTS and 1 other brand. All of them fit every engine offered in the 2012 2500.
Economy: 1 part, from SHEE-MAR. A representative part number is SHEE-MAR SM414.
The Standard Replacement section: 3 options from ROSTRA, STANDARD MOTOR PRODUCTS and WELLS. ROSTRA 640046 is listed in this group.
This group includes SHEE-MAR SM414, ROSTRA 640046 and STANDARD MOTOR PRODUCTS CBS1925 and the remaining parts above.
Door Lock Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: all 2012 2500 engines | 68021708AD | 🇺🇸 US 🇨🇦 CA | Power Locks, Power Windows, Front 1-Touch Down 3 GangRegular Cab | View on Amazon |
| MOPAR Fits: all 2012 2500 engines | 4602870AD | 🇺🇸 US 🇨🇦 CA | Fits Power Locks, Power Front Windows, 1-Touch, up & DownCrew Cab Crew Cab | View on Amazon |
| MOPAR Fits: all 2012 2500 engines | 4602881AD | 🇺🇸 US 🇨🇦 CA | Fits Power Locks, Power Windows, Front 1-Touch DownExc. Power Folding Black Trailer Tow Mirrors Or Power Folding Chrome Trailer Tow Mirrors | View on Amazon |
| MOPAR Fits: all 2012 2500 engines | 4602863AD | 🇺🇸 US 🇨🇦 CA | Fits Power Front Windows, 1-Touch, up & Down, Power LocksExc. Power Folding Black Trailer Tow Mirrors or Power Folding Chrome Trailer Tow Mirrors | View on Amazon |
This table covers the Door Lock switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
4 Door Lock Switch parts for the 2012 Ram 2500 come from MOPAR. Every part fits both the 5.7L V8 and the 6.7L L6 DIESEL Turbocharged.
This group includes MOPAR 68021708AD, MOPAR 4602870AD and MOPAR 4602881AD and the remaining parts above.
Engine Compartment Light Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS Fits: all 2012 2500 engines | 1S2212 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the Engine Compartment Light switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
One part is listed for the 2012 Ram 2500 — WELLS 1S2212.
Fog / Driving Lamp Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS Fits: all 2012 2500 engines | 1S11719 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the Fog / Driving Lamp switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
One part is listed for the 2012 Ram 2500 — WELLS 1S11719.
Fuel Door Release Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: all 2012 2500 engines | 68067517AA | 🇺🇸 US 🇨🇦 CA | Fits Ram Box Cargo Management SystemMega Cabor Rambox Cargo Management System | View on Amazon |
This table covers the Fuel Door Release switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
This group shows a single part: MOPAR 68067517AA.
Glove Box Lamp Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: all 2012 2500 engines | 4565022 | 🇺🇸 US 🇨🇦 CA | Fits Glove Box LampMega Cabor Glove Box Lamp | View on Amazon |
| ROSTRA Fits: all 2012 2500 engines | 651381 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| WELLS Fits: all 2012 2500 engines | 1S2892 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the Glove Box Lamp switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
3 Glove Box Lamp Switch parts are listed for the 2012 Ram 2500, from MOPAR, ROSTRA and WELLS. All of them fit every engine offered in the 2012 2500.
Part numbers include MOPAR 4565022, ROSTRA 651381 and WELLS 1S2892.
Headlamp Switch
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKP Fits: all 2012 2500 engines | SKHLS1686 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | BI-Fuelwithout Fog Lights | View on Amazon |
| SKP Fits: all 2012 2500 engines | SKHLS1685 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | with Fog Lights | View on Amazon |
| ULTRA-POWER Fits: all 2012 2500 engines | HLS1686 | 🇺🇸 US 🇨🇦 CA | without Fog LightsAlternate Replacement Part | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular Fits: all 2012 2500 engines | HLS1685 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | with Fog Lights | View on Amazon |
| WELLS Popular Fits: all 2012 2500 engines | 1S11719 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | with Fog Lights | View on Amazon |
| MOPAR Fits: all 2012 2500 engines | 4602918AA | 🇺🇸 US 🇨🇦 CA | Fits Fog LampsAutomatic Headlamps | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: all 2012 2500 engines | HLS1686 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | without Fog Lights | View on Amazon |
| WELLS Fits: all 2012 2500 engines | 1S11718 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | without Fog Lights | View on Amazon |
This table covers the column or dash switches that control the exterior lamps. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
8 Headlamp Switch parts are listed for the 2012 Ram 2500, from SKP, STANDARD MOTOR PRODUCTS, WELLS and 2 other brands. STANDARD MOTOR PRODUCTS HLS1685 carries the "Popular" badge. All of them fit every engine offered in the 2012 2500.
Economy: 3 parts, from SKP and ULTRA-POWER. A representative part number is SKP SKHLS1686.
The Standard Replacement section: 5 options from STANDARD MOTOR PRODUCTS, WELLS and MOPAR. STANDARD MOTOR PRODUCTS HLS1685 is listed in this group.
Part numbers include STANDARD MOTOR PRODUCTS HLS1685, SKP SKHLS1686 and SKP SKHLS1685, among others listed above.
Hood Ajar Indicator Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: all 2012 2500 engines | 4707875AB | 🇺🇸 US 🇨🇦 CA | Fits LeftRambox Lamp Switch | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: all 2012 2500 engines | DS2264 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the Hood Ajar Indicator switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
2 Hood Ajar Indicator Switch parts for the 2012 Ram 2500 come from 2 brands — MOPAR and STANDARD MOTOR PRODUCTS. Every part fits both the 5.7L V8 and the 6.7L L6 DIESEL Turbocharged.
Part numbers include MOPAR 4707875AB and STANDARD MOTOR PRODUCTS DS2264.
Ignition Starter Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: all 2012 2500 engines | US1292 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | DASH MOUNTED | View on Amazon |
This table covers the ignition switches that feed the starter circuit. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
One part is listed for the 2012 Ram 2500 — STANDARD MOTOR PRODUCTS US1292.
Instrument Cluster Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: all 2012 2500 engines | 4602878AC | 🇺🇸 US 🇨🇦 CA | Fits Heated Front Seats, Heated Steering WheelExc. Ventilated Front Seats | View on Amazon |
| MOPAR Fits: all 2012 2500 engines | 4602879AC | 🇺🇸 US 🇨🇦 CA | Fits Heated Front Seats, Heated Steering Wheel, Ventilated Front SeatsMega Cabor Heated Front Seats, Heated Steering Wheel, Ventilated Front Seats | View on Amazon |
| MOPAR Fits: all 2012 2500 engines | 4602961AC | 🇺🇸 US 🇨🇦 CA | Fits Diesel Exhaust Brake, Electronic Stability ControlExc. 115V Auxiliary Power Outlet Or Park Sense Rear Park Assist System | View on Amazon |
This table covers the Instrument Cluster switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
3 Instrument Cluster Switch parts for the 2012 Ram 2500 come from MOPAR. Every part fits both the 5.7L V8 and the 6.7L L6 DIESEL Turbocharged.
Listed part numbers: MOPAR 4602878AC, MOPAR 4602879AC and MOPAR 4602961AC.
Instrument Panel Dimmer Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS Fits: all 2012 2500 engines | 1S11719 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | with Fog Lights | View on Amazon |
| WELLS Fits: all 2012 2500 engines | 1S11718 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | without Fog Lights | View on Amazon |
This table covers the Instrument Panel Dimmer switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
2 Instrument Panel Dimmer Switch parts for the 2012 Ram 2500 come from WELLS. Every part fits both the 5.7L V8 and the 6.7L L6 DIESEL Turbocharged.
Part numbers include WELLS 1S11719 and WELLS 1S11718.
Intake Manifold Heater Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ROSTRA Fits: 6.7L L6 DIESEL Turbocharged | 600225 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| WELLS Fits: 6.7L L6 DIESEL Turbocharged | 1R2398 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Cover Material: Plastic, Metal | View on Amazon |
This table covers the relays that control the Intake Manifold Heater circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.
2 Intake Manifold Heater Relay parts are listed for the 2012 Ram 2500, from ROSTRA and WELLS.
Part numbers include ROSTRA 600225 and WELLS 1R2398.
Micro Plug Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: all 2012 2500 engines | 68083380AA | 🇺🇸 US 🇨🇦 CA | MICRO RELAY | View on Amazon |
This table covers the relays that control the Micro Plug circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.
This group shows a single part: MOPAR 68083380AA.
Oil Pressure Sender / Switch
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Popular Fits: 5.7L V8 | 926188 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| AUTOTECNICA Fits: 5.7L V8 | CY1316168 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Terminal Type: SpadeConnector Oval | View on Amazon |
| AUTOTECNICA Fits: 5.7L V8 | CY1321925 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Terminal Type: Blade PinRectangular Connector/Oval | View on Amazon |
| HOLSTEIN Fits: 5.7L V8 | 2OPS0032 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| HOLSTEIN Fits: 5.7L V8 | 2OPS0036 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| SKP Fits: all 2012 2500 engines | SK1S6755 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| UNITED MOTOR PRODUCTS Fits: 5.7L V8 | OPS186 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | with Gauge | View on Amazon |
| UNITED MOTOR PRODUCTS Fits: 6.7L L6 DIESEL Turbocharged | OPS248 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | with Gauge | View on Amazon |
| VEMO Fits: 5.7L V8 | V33730025 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| WALKER PRODUCTS Fits: 5.7L V8 | 2561018 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GPD Popular Fits: 6.7L L6 DIESEL Turbocharged | 1815270 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | with Gauge | View on Amazon |
| MOPAR Popular Fits: 5.7L V8 | 5149062AB | 🇺🇸 US 🇨🇦 CA | Fits HEMICNG | View on Amazon |
| STANDARD MOTOR PRODUCTS Popular Fits: 6.7L L6 DIESEL Turbocharged | PS406 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| WELLS Popular Fits: 5.7L V8 | 1S6755 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Connector Gender: Female | View on Amazon |
| GPD Fits: 5.7L V8 | 1815374 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | with Gauge | View on Amazon |
| ROSTRA Fits: 5.7L V8 | 501336 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Connector Shape: RectangularTerminal Quantity: 3 | View on Amazon |
| ROSTRA Fits: 6.7L L6 DIESEL Turbocharged | 501307 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| STANDARD MOTOR PRODUCTS Fits: 5.7L V8 | PS317 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Finish: Brass | View on Amazon |
| WELLS Fits: 6.7L L6 DIESEL Turbocharged | 1S10852 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the senders and switches that report oil pressure to the gauge or lamp. Typical signs include a lamp that stays on, or a gauge that never moves. Confirm power and ground at the connector before replacing the sender or switch.
19 Oil Pressure Sender / Switch parts for the 2012 Ram 2500 come from 12 brands — AUTOTECNICA, HOLSTEIN, UNITED MOTOR PRODUCTS and 9 other brands. The "Popular" part is DORMAN 926188. 1 part fits every engine; the other 18 are engine-specific.
The Economy section: 10 options from AUTOTECNICA, HOLSTEIN, UNITED MOTOR PRODUCTS and 4 other brands. DORMAN 926188 is listed in this group.
Standard Replacement: 9 parts, from GPD, STANDARD MOTOR PRODUCTS, WELLS and 2 other brands. A representative part number is GPD 1815270.
Parking Brake Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: all 2012 2500 engines | 4221463 | 🇺🇸 US 🇨🇦 CA | Fits MEGA CAB | View on Amazon |
| WELLS Fits: all 2012 2500 engines | 1S4788 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the Parking Brake switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
2 Parking Brake Switch parts for the 2012 Ram 2500 come from 2 brands — MOPAR and WELLS. Every part fits both the 5.7L V8 and the 6.7L L6 DIESEL Turbocharged.
This group includes MOPAR 4221463 and WELLS 1S4788.
Parking Lamp Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ROSTRA Fits: all 2012 2500 engines | 600230 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| STANDARD MOTOR PRODUCTS Fits: all 2012 2500 engines | RY1627 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| WELLS Fits: all 2012 2500 engines | 1R2407 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Mounting Hardware Included: No | View on Amazon |
This table covers the relays that control the Parking Lamp circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.
3 Parking Lamp Relay parts for the 2012 Ram 2500 come from 3 brands — ROSTRA, STANDARD MOTOR PRODUCTS and WELLS. Every part fits both the 5.7L V8 and the 6.7L L6 DIESEL Turbocharged.
Part numbers include ROSTRA 600230, STANDARD MOTOR PRODUCTS RY1627 and WELLS 1R2407.
Power Seat Switch
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKP Popular Fits: all 2012 2500 engines | SK901477 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front LeftHigh Current | View on Amazon |
| DORMAN Fits: all 2012 2500 engines | 901477 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Left8 Way | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Popular Fits: all 2012 2500 engines | 56040636AC | 🇺🇸 US 🇨🇦 CA | Fits 4 Way High Current PassengerPower 10-Way Memory Driver 6-Way Passenger Seats | View on Amazon |
| ROSTRA Popular Fits: all 2012 2500 engines | 660301 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Leftwith 4 Terminals | View on Amazon |
| ROSTRA Popular Fits: all 2012 2500 engines | 660082 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Leftwith 10 Terminals | View on Amazon |
| MOPAR Fits: all 2012 2500 engines | 56049433AF | 🇺🇸 US 🇨🇦 CA | EconomyLowline | View on Amazon |
| MOPAR Fits: all 2012 2500 engines | 56049431AF | 🇺🇸 US 🇨🇦 CA | Fits 8 Way Low Current DriversPower 10-Way Memory Driver 6-Way Passenger Seats | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: all 2012 2500 engines | PMS12 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Adjusts Seat Memory Function | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: all 2012 2500 engines | PSW126 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Left | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: all 2012 2500 engines | PSW127 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Leftwith Memory Seats | View on Amazon |
| WELLS Fits: all 2012 2500 engines | 1S17150 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Adjusts Seat Memory Function | View on Amazon |
| WELLS Fits: all 2012 2500 engines | 1S16027 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Lumbar Switch | View on Amazon |
| WELLS Fits: all 2012 2500 engines | 1S7843 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Leftwith Cloth Seats | View on Amazon |
| WELLS Fits: all 2012 2500 engines | 1S7839 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Right | View on Amazon |
| WELLS Fits: all 2012 2500 engines | 1S7842 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Leftwith Leather Seats | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: all 2012 2500 engines | 56049433AG | 🇺🇸 US 🇨🇦 CA | Fits 8 Way High Current DriversPower 10-Way Driver Seat | View on Amazon |
| MOPAR Fits: all 2012 2500 engines | 56049431AG | 🇺🇸 US 🇨🇦 CA | Fits 8 Way Low Current DriversPower 10-Way Memory Driver 6-Way Passenger Seats | View on Amazon |
This table covers the Power Seat switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
17 Power Seat Switch parts are listed for the 2012 Ram 2500, from MOPAR, WELLS, STANDARD MOTOR PRODUCTS and 3 other brands. SKP SK901477 carries the "Popular" badge. All of them fit every engine offered in the 2012 2500.
Economy: 2 parts, from SKP and DORMAN. A representative part number is SKP SK901477.
The Standard Replacement section: 13 options from WELLS, MOPAR, STANDARD MOTOR PRODUCTS and 1 other brand. MOPAR 56040636AC is listed in this group.
2 ungrouped parts are not assigned to a grade, with the same engine-level match.
Power Window Switch
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Popular Fits: all 2012 2500 engines | 901518 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front LeftStandard Cab Pickup | View on Amazon |
| SKP Popular Fits: all 2012 2500 engines | SKDWS523 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Right | View on Amazon |
| DORMAN Fits: all 2012 2500 engines | 901473 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front LeftCrew Cab Pickup or Extended Crew Cab Pickup | View on Amazon |
| SKP Fits: all 2012 2500 engines | SK901473 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front LeftCrew Cab Pickup or Extended Crew Cab Pickup | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS Popular Fits: all 2012 2500 engines | 1S13399 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Right | View on Amazon |
| WELLS Popular Fits: all 2012 2500 engines | 1S14280 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front LeftCrew Cab Pickup | View on Amazon |
| MOPAR Fits: all 2012 2500 engines | 4602864AC | 🇺🇸 US 🇨🇦 CA | Fits LeftPower Front Windows, 1-Touch Up and Down | View on Amazon |
| MOPAR Fits: all 2012 2500 engines | 68065171AB | 🇺🇸 US 🇨🇦 CA | Fits Rear Sliding Power WindowA/C | View on Amazon |
| ROSTRA Fits: all 2012 2500 engines | 660284 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear | View on Amazon |
| ROSTRA Fits: all 2012 2500 engines | 660041 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Right | View on Amazon |
| ROSTRA Fits: all 2012 2500 engines | 660189 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front LeftCrew Cab Pickup or Extended Crew Cab Pickup | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: all 2012 2500 engines | DWS565 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: all 2012 2500 engines | DWS1390 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front RightStandard Cab Pickup | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: all 2012 2500 engines | DWS523 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front RightCrew Cab Pickup or Extended Crew Cab Pickup | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: all 2012 2500 engines | DWS1386 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front LeftCrew Cab Pickup or Extended Crew Cab Pickup | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: all 2012 2500 engines | DWS2248 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front LeftCrew Cab Pickup or Extended Crew Cab Pickup | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: all 2012 2500 engines | DWS879 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front LeftStandard Cab Pickup | View on Amazon |
| WELLS Fits: all 2012 2500 engines | 1S13398 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Fits Rear Right | View on Amazon |
| WELLS Fits: all 2012 2500 engines | 1S14230 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front LeftStandard Cab Pickup | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AUTOTECNICA Fits: all 2012 2500 engines | DG1323120 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front RightStandard Cab Pickup | View on Amazon |
This table covers the switches that command each window motor. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
20 Power Window Switch parts for the 2012 Ram 2500 come from 7 brands — STANDARD MOTOR PRODUCTS, WELLS, ROSTRA and 4 other brands. The "Popular" part is DORMAN 901518. Every part fits both the 5.7L V8 and the 6.7L L6 DIESEL Turbocharged.
The Economy section: 4 options from DORMAN and SKP. DORMAN 901518 is listed in this group.
Standard Replacement: 15 parts, from STANDARD MOTOR PRODUCTS, WELLS, ROSTRA and 1 other brand. A representative part number is WELLS 1S13399.
1 further part sits outside the graded sections, with the same engine-level match.
Radio Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: all 2012 2500 engines | 56046098AD | 🇺🇸 US 🇨🇦 CA | Fits RightLeather Wrapped Steering Wheel | View on Amazon |
| MOPAR Fits: all 2012 2500 engines | 56046099AD | 🇺🇸 US 🇨🇦 CA | Fits LeftPremium Leather Wrapped Steering WHL | View on Amazon |
This table covers the Radio switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
2 Radio Switch parts for the 2012 Ram 2500 come from MOPAR. Every part fits both the 5.7L V8 and the 6.7L L6 DIESEL Turbocharged.
This group includes MOPAR 56046098AD and MOPAR 56046099AD.
Seat Heater Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular Fits: all 2012 2500 engines | HSS125 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear Right | View on Amazon |
| STANDARD MOTOR PRODUCTS Popular Fits: all 2012 2500 engines | HSS122 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear Left | View on Amazon |
| MOPAR Fits: all 2012 2500 engines | 4602872AB | 🇺🇸 US 🇨🇦 CA | Fits Rear RightHeated Second Row Seats | View on Amazon |
| MOPAR Fits: all 2012 2500 engines | 4602970AB | 🇺🇸 US 🇨🇦 CA | Fits Rear LeftHeated Second Row Seats | View on Amazon |
| WELLS Fits: all 2012 2500 engines | 1S17472 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear Right | View on Amazon |
| WELLS Fits: all 2012 2500 engines | 1S17473 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear | View on Amazon |
This table covers the Seat Heater switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
6 Seat Heater Switch parts are listed for the 2012 Ram 2500, from STANDARD MOTOR PRODUCTS, MOPAR and WELLS. STANDARD MOTOR PRODUCTS HSS125 carries the "Popular" badge. All of them fit every engine offered in the 2012 2500.
Part numbers include STANDARD MOTOR PRODUCTS HSS125, STANDARD MOTOR PRODUCTS HSS122 and MOPAR 4602872AB, among others listed above.
Seat Lumbar Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: all 2012 2500 engines | 68157564AA | 🇺🇸 US 🇨🇦 CA | Fits Power 10-Way Driver SeatExc. Supplemental Front Seat Side Air Bags or Heated Front Seats | View on Amazon |
This table covers the Seat Lumbar switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
One part is listed for the 2012 Ram 2500 — MOPAR 68157564AA.
Starter Motor Control Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Fits: all 2012 2500 engines | 933332571 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 30 Amps4-Pin Connector | View on Amazon |
This table covers the relays that control the Starter Motor Control circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.
One part is listed for the 2012 Ram 2500 — HELLA 933332571.
Steering Wheel Audio Control Switch
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SHEE-MAR Fits: all 2012 2500 engines | SM2104 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Right | View on Amazon |
| SHEE-MAR Fits: all 2012 2500 engines | SM2103 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Left | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: all 2012 2500 engines | 56046375AC | 🇺🇸 US 🇨🇦 CA | EvicSteering Wheel | View on Amazon |
| MOPAR Fits: all 2012 2500 engines | 56046097AD | 🇺🇸 US 🇨🇦 CA | Steering WheelEvic | View on Amazon |
This table covers the Steering Wheel Audio Control switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
4 Steering Wheel Audio Control Switch parts for the 2012 Ram 2500 come from 2 brands — SHEE-MAR and MOPAR. Every part fits both the 5.7L V8 and the 6.7L L6 DIESEL Turbocharged.
The Economy section: 2 options from SHEE-MAR. SHEE-MAR SM2104 is listed in this group.
Standard Replacement: 2 parts, from MOPAR. A representative part number is MOPAR 56046375AC.
Listed part numbers: SHEE-MAR SM2104, SHEE-MAR SM2103 and MOPAR 56046375AC, plus the other parts above.
Sunroof / Sunshade Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: all 2012 2500 engines | 68023666AA | 🇺🇸 US 🇨🇦 CA | Fits A/COverhead Console with Trip Computer/Universal Garage Door Opener | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: all 2012 2500 engines | DS3500 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| WELLS Fits: all 2012 2500 engines | 1S16033 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the Sunroof / Sunshade switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
3 Sunroof / Sunshade Switch parts are listed for the 2012 Ram 2500, from MOPAR, STANDARD MOTOR PRODUCTS and WELLS. All of them fit every engine offered in the 2012 2500.
Part numbers include MOPAR 68023666AA, STANDARD MOTOR PRODUCTS DS3500 and WELLS 1S16033.
Trailer Brake Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Fits: 5.7L V8 | 82212548 | 🇺🇸 US 🇨🇦 CA | Production Style Integrated Electronic Trailer Brake Controller | View on Amazon |
This table covers the Trailer Brake switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
One part is listed for the 2012 Ram 2500 — MOPAR 82212548.
Turn Signal Switch
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 6.7L L6 DIESEL Turbocharged | 901279 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| SHEE-MAR Fits: 6.7L L6 DIESEL Turbocharged | SM414 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Dimmer, Turn Signal, Multifunction, Wiper/Washer Switch | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOPAR Popular Fits: 6.7L L6 DIESEL Turbocharged | 56046114AF | 🇺🇸 US 🇨🇦 CA | Fits Non Adjustable PedalsExc. Heated Steering Wheel | View on Amazon |
| WELLS Popular Fits: 6.7L L6 DIESEL Turbocharged | 1S11313 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| ROSTRA Fits: 6.7L L6 DIESEL Turbocharged | 640046 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| STANDARD MOTOR PRODUCTS Fits: 6.7L L6 DIESEL Turbocharged | CBS1925 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the combination / turn-signal switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
6 Turn Signal Switch parts for the 2012 Ram 2500 come from 6 brands — DORMAN, SHEE-MAR, MOPAR and 3 other brands. The "Popular" part is MOPAR 56046114AF.
The Economy section: 2 options from DORMAN and SHEE-MAR. DORMAN 901279 is listed in this group.
Standard Replacement: 4 parts, from MOPAR, WELLS, ROSTRA and 1 other brand. A representative part number is MOPAR 56046114AF.
Part numbers include MOPAR 56046114AF, DORMAN 901279 and SHEE-MAR SM414, among others listed above.
Wiper / Washer Switch
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SHEE-MAR Fits: 6.7L L6 DIESEL Turbocharged | SM414 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Dimmer, Turn Signal, Multifunction, Wiper/Washer Switch | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ROSTRA Fits: 6.7L L6 DIESEL Turbocharged | 640046 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| STANDARD MOTOR PRODUCTS Fits: 6.7L L6 DIESEL Turbocharged | CBS1925 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| WELLS Fits: 6.7L L6 DIESEL Turbocharged | 1S11313 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the Wiper / Washer switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
4 Wiper / Washer Switch parts are listed for the 2012 Ram 2500, from SHEE-MAR, ROSTRA, STANDARD MOTOR PRODUCTS and 1 other brand.
Economy: 1 part, from SHEE-MAR. A representative part number is SHEE-MAR SM414.
The Standard Replacement section: 3 options from ROSTRA, STANDARD MOTOR PRODUCTS and WELLS. ROSTRA 640046 is listed in this group.
Part numbers include SHEE-MAR SM414, ROSTRA 640046 and STANDARD MOTOR PRODUCTS CBS1925, among others listed above.
Buying Electrical Switch & Relay Parts for a 2012 Ram 2500
On this vehicle, the switch and relay system covers the switches, relays and flashers that route power to everything the driver touches.
- Match the engine first. Some electrical switch & relay 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, inspect the connector terminals behind any failed switch — heat damage there will kill the new part too.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Power Window Switch and Oil Pressure Sender / Switch .
Frequently Asked Questions
How many electrical switch & relay parts fit the 2012 Ram 2500?
Our catalog currently lists 157 electrical switch & relay parts for the 2012 Ram 2500 across 38 subcategories and 18 brands, covering both the 5.7L V8 and the 6.7L L6 DIESEL Turbocharged. Each part is matched to the engine(s) it fits.
Do electrical switch & relay parts differ between 2012 Ram 2500 engines?
Some do. 120 parts fit every engine; the other 37 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 switch & relay problems on a 2012 Ram 2500?
Common symptoms include accessories that work intermittently, a click without action, or one function dead while its fuse tests fine. 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, inspect the connector terminals behind any failed switch — heat damage there will kill the new part too.
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 2012 Ram 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 2012 Ram 2500?
First match the engine — each row shows which engine(s) the part fits. Then swap a suspect relay with an identical known-good one from the fuse box before buying — it is the fastest diagnostic there is. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2012 Ram 2500
Electrical Switch & Relay Parts for Other Ram 2500 Years
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