2012 Ram 2500 Electrical Parts

This table covers the alternators that charge the battery and run the electrical load. Typical signs include dim lights at idle, a battery lamp, or a growl from the charging pulley. Load-test the battery and inspect the belt and grounds — a bad ground mimics a failed alternator. Read more

54 Alternator / Generator parts for the 2012 Ram 2500 come from 11 brands — REMY, TERREPOWER, PURE ENERGY and 8 other brands. The "Popular" part is TYC 211299. New and Remanufactured are all represented, and Remanufactured alone accounts for 32 parts.

This table covers the pulleys on the alternator shaft. Typical signs include a growl or chirp that follows engine speed, or a pulley that will not spin freely by hand. Spin each pulley with the belt off. Roughness or play means replace it with the belt. Read more

4 Alternator / Generator Pulley parts are listed for the 2012 Ram 2500, from CONTINENTAL, DORMAN, INA and 1 other brand.

Part numbers include CONTINENTAL 49980, DORMAN 300435 and INA EA0262, among others listed above.

This table covers the batteries listed by group size and specification. Typical signs include slow cranking, a battery lamp, or a no-start after the vehicle sat overnight. Confirm group size and terminal layout in the notes. Clean the posts and the ground before condemning the battery. Read more

8 Battery parts are listed for the 2012 Ram 2500, from DEKA, FVP, ACDELCO and 5 other brands. DEKA 9A94R carries the "Popular" badge. All of them fit every engine offered in the 2012 2500.

The AGM (Extended Life) section lists 7 options from DEKA, FVP, ACDELCO and 4 other brands — grouped under the catalog's "AGM (Extended Life)" designation — the notes column spells out what sets them apart. DEKA 9A94R is listed in this group.

The Performance AGM (Extended Life + Increased Power) section lists 1 option from FULLRIVER — grouped under the catalog's "Performance AGM (Extended Life + Increased Power)" designation — the notes column spells out what sets them apart. FULLRIVER FT85094R is listed in this group.

Part numbers include DEKA 9A94R, FVP P94RAGM and ACDELCO 94RAGM, among others listed above.

This table covers the positive and ground cables that run from the battery. Typical signs include a stretched or frayed cable, or a control that no longer reaches the end of its travel. Route the new cable through the same clips. A kinked cable binds and fails early. Read more

5 Battery Cable parts for the 2012 Ram 2500 come from MOPAR. 3 parts fit every engine; the other 2 are engine-specific.

Part numbers include MOPAR 5059001AC, MOPAR 5064814AB and MOPAR 5148506AC, among others listed above.

This table covers the Battery Heat shields. Typical signs include a bent shield rubbing a rotor, or rust-through that leaves the backing open. A rubbing shield will eat a new rotor. Straighten or replace it before the wheel goes back on. Read more

This group shows a single part: MOPAR 5033395AC.

This table covers the trays the battery sits in. Read more

MOPAR supplies both parts for the 2012 Ram 2500. All of them fit every engine offered in the 2012 2500.

Part numbers include MOPAR 55372563AB and MOPAR 55372500AE.

This table covers the resettable circuit breakers in this vehicle's electrical system. Read more

One part is listed for the 2012 Ram 2500 — MOPAR 4692143AA.

This table covers the Door control modules. Read more

MOPAR supplies both parts for the 2012 Ram 2500. All of them fit every engine offered in the 2012 2500.

Listed part numbers: MOPAR 4602911AK and MOPAR 4602910AK.

This table covers the engine-control modules that run fuel, spark and emissions. Read more

This group shows a single part: DORMAN 318083.

This table covers the replacement fuses for this vehicle's fuse boxes. Typical signs include one circuit dead while its neighbor still works, or a fuse that blows again as soon as you replace it. Match amperage and fuse type. A repeat blow means a short — find it before the next fuse. Read more

5 Fuse parts are listed for the 2012 Ram 2500, from MOPAR and BUSSMANN. BUSSMANN ATM2 carries the "Popular" badge. All of them fit every engine offered in the 2012 2500.

The 10 Amp section lists 1 option from MOPAR — grouped under the catalog's "10 Amp" designation — the notes column spells out what sets them apart. MOPAR 6101486 is listed in this group.

In the 15 Amp grade, MOPAR supplies 1 part: grouped under the catalog's "15 Amp" designation — the notes column spells out what sets them apart. A representative part number is MOPAR 6101487.

In the 2 Amp grade, BUSSMANN supplies 1 part: grouped under the catalog's "2 Amp" designation — the notes column spells out what sets them apart. A representative part number is BUSSMANN ATM2.

In the 20 Amp grade, MOPAR supplies 1 part: grouped under the catalog's "20 Amp" designation — the notes column spells out what sets them apart. A representative part number is MOPAR 6101488.

The 25 Amp section lists 1 option from MOPAR — grouped under the catalog's "25 Amp" designation — the notes column spells out what sets them apart. MOPAR 4687835 is listed in this group.

This group includes BUSSMANN ATM2, MOPAR 6101486 and MOPAR 6101487 and the remaining parts above.

This table covers the holders that carry a fuse. Read more

One part is listed for the 2012 Ram 2500 — MOPAR 68083377AA.

This table covers the horns mounted in the front of the vehicle. Read more

15 Horn parts are listed for the 2012 Ram 2500, from FIAMM, DORMAN and MOPAR. FIAMM 7210223 carries the "Popular" badge. 14 parts fit every engine; the other 1 is engine-specific.

In the Accessory Replacement grade, FIAMM supplies 7 parts: grouped under the catalog's "Accessory Replacement" designation — the notes column spells out what sets them apart. A representative part number is FIAMM 7210223.

The Standard Replacement section lists 8 options from FIAMM, DORMAN and MOPAR — built to original-equipment specification. FIAMM 7201223 is listed in this group.

This table covers the receivers that pick up the key-fob unlock signal. Read more

3 Keyless Entry Module / Receiver 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 68105738AF, MOPAR 68105739AC and MOPAR 68105738AD.

This table covers the key fobs that lock, unlock and start the vehicle. Read more

4 Keyless Entry Remote parts for the 2012 Ram 2500 come from 2 brands — MOPAR and DORMAN. Every part fits both the 5.7L V8 and the 6.7L L6 DIESEL Turbocharged.

Part numbers include DORMAN 99360, MOPAR 56046639AG and MOPAR 56046638AF, among others listed above.

This table covers the Park Assist (PAS) Camera modules. Typical signs include a cluster of unrelated faults, a no-communication code, or a module that will not sleep. Confirm power, ground and programming compatibility in the notes. Modules are rarely plug-and-play across years. Read more

One part is listed for the 2012 Ram 2500 — MOPAR 5137541AA.

This table covers the ultrasonic park-aid sensors in the bumper. Typical signs include a warning lamp, a stored code, or a reading that drops out when the harness is wiggled. Inspect the connector and ground before replacing the sensor — wiring faults are often condemned as bad sensors. Read more

8 Parking Aid Sensor parts for the 2012 Ram 2500 come from 8 brands — BOSCH, STANDARD MOTOR PRODUCTS, AUTOTECNICA and 5 other brands. The "Popular" part is BOSCH 0263043552. Every part fits both the 5.7L V8 and the 6.7L L6 DIESEL Turbocharged.

Listed part numbers: BOSCH 0263043552, STANDARD MOTOR PRODUCTS PPS45 and AUTOTECNICA CY1317815, plus the other parts above.

This table covers the brackets that mount the Parking Aid Sensor. Typical signs include a cracked mount, a rattle, or a bracket that no longer holds alignment. Confirm position in the notes. Many brackets look alike and bolt to different corners. Read more

5 Parking Aid Sensor Bracket parts for the 2012 Ram 2500 come from 3 brands — WESTIN, TECHPRO and MOPAR. The "Popular" part is WESTIN 400015S. Every part fits both the 5.7L V8 and the 6.7L L6 DIESEL Turbocharged.

Part numbers include WESTIN 400015S, MOPAR 4806229AA and TECHPRO CH1174102, among others listed above.

This table covers the Power inverters. Read more

2 Power Inverter 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 5082095AB and MOPAR 56046933AA.

This table covers the totally-integrated power modules that distribute body electrical power. Typical signs include a cluster of unrelated faults, a no-communication code, or a module that will not sleep. Confirm power, ground and programming compatibility in the notes. Modules are rarely plug-and-play across years. Read more

5 Power Supply Module (TIPM) parts are listed for the 2012 Ram 2500, from MOPAR and DORMAN. 1 part fits every engine; the other 4 are engine-specific.

Listed part numbers: DORMAN 599985, MOPAR 68089323AF and MOPAR R8089322AG, plus the other parts above.

This table covers the powertrain-control modules that run engine and transmission. Read more

One part is listed for the 2012 Ram 2500 — MOPAR R5150635AB.

This table covers the speed sensors on the transmission, transfer case or ABS ring. Typical signs include a dead speedometer, harsh transmission shifts, or a code for vehicle speed. Inspect the tone wheel and the connector before replacing the sensor. Read more

16 Speed Sensor parts are listed for the 2012 Ram 2500, from STANDARD MOTOR PRODUCTS, WALKER PRODUCTS, AUTOTECNICA and 11 other brands. WALKER PRODUCTS 24091042 carries the "Popular" badge. All of them fit every engine offered in the 2012 2500.

In the Economy grade, AUTOTECNICA, BECK/ARNLEY, DORMAN and 5 other brands supply 8 parts: the catalog's value-priced group. A representative part number is AUTOTECNICA CY1320158.

In the Full Service Kit grade, WALKER PRODUCTS supplies 1 part: grouped under the catalog's "Full Service Kit" designation — the notes column spells out what sets them apart. A representative part number is WALKER PRODUCTS 24091042.

The Standard Replacement section: 7 options from DELPHI, MOPAR, ROSTRA and 4 other brands. DELPHI SS11424 is listed in this group.

This table covers the starter motors that crank the engine. Typical signs include no motion, a squeal, or a motor that only runs on one speed. Confirm power, ground and the control module before replacing the motor. Read more

30 Starter Motor parts for the 2012 Ram 2500 come from 11 brands — PURE ENERGY, TERREPOWER, WAI GLOBAL and 8 other brands. The "Popular" part is PURE ENERGY 17948N. They are grouped as New and Remanufactured, with Remanufactured the largest group at 20 parts from ACDELCO, PURE ENERGY, FVP and 6 other brands.

This table covers the Starter Motor Heat shields. Typical signs include a bent shield rubbing a rotor, or rust-through that leaves the backing open. A rubbing shield will eat a new rotor. Straighten or replace it before the wheel goes back on. Read more

One part is listed for the 2012 Ram 2500 — MOPAR 56044116AE.

This table covers the Yaw sensors. Typical signs include a warning lamp, a stored code, or a reading that drops out when the harness is wiggled. Inspect the connector and ground before replacing the sensor — wiring faults are often condemned as bad sensors. Read more

One part is listed for the 2012 Ram 2500 — MOPAR 56029496AC.