2023 GMC Sierra 3500 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

8 Alternator / Generator parts for the 2023 GMC Sierra 3500 come from 4 brands — GM GENUINE, FVP, PURE ENERGY and 1 other brand. The "Popular" part is GM GENUINE 13563313. 7 parts fit every engine; the other 1 is engine-specific.

The New section lists 3 options from GM GENUINE — brand-new units rather than rebuilt ones. GM GENUINE 13563313 is listed in this group.

The Remanufactured section lists 5 options from FVP, PURE ENERGY and TERREPOWER — factory-rebuilt units with new wear components. FVP 10394 is listed in this group.

This group includes GM GENUINE 13563313, GM GENUINE 13563314 and GM GENUINE 85671415 and the remaining parts above.

This table covers the Alternator / Generator bolts. Read more

One part is listed for the 2023 GMC Sierra 3500 — GM GENUINE 11611384.

This table covers the brackets that mount the Alternator / Generator. 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

This group shows a single part: GM GENUINE 97356246.

This table covers the Alternator / Generator bushings. Typical signs include a clunk over bumps, or a torn or walked-out bushing you can see. Press the new bushing square. A cocked bushing will tear in a few thousand miles. Read more

2 Alternator / Generator Bushing parts for the 2023 GMC Sierra 3500 come from GM GENUINE.

Listed part numbers: GM GENUINE 12624586 and GM GENUINE 12623219.

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

One part is listed for the 2023 GMC Sierra 3500 — CONTINENTAL 49903.

This table covers the Anti-Theft control modules. Read more

GM GENUINE supplies both parts for the 2023 GMC Sierra 3500. All of them fit every engine offered in the 2023 Sierra 3500.

This group includes GM GENUINE 13516351 and GM GENUINE 13516352.

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

20 Battery parts are listed for the 2023 GMC Sierra 3500, from DEKA, LUCAS, ACDELCO and 5 other brands. DEKA 9A48 carries the "Popular" badge.

The AGM (Extended Life) section lists 13 options from DEKA, LUCAS, ACDELCO and 4 other brands — grouped under the catalog's "AGM (Extended Life)" designation — the notes column spells out what sets them apart. DEKA 9A48 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.

6 ungrouped parts are not assigned to a grade, with the same engine-level match.

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

7 Battery Cable parts for the 2023 GMC Sierra 3500 come from GM GENUINE. The "Popular" part is GM GENUINE 84794790. 3 parts fit every engine; the other 4 are engine-specific.

Part numbers include GM GENUINE 84794790, GM GENUINE 87866332 and GM GENUINE 84772924, among others listed above.

This table covers the Battery Cable Terminal ends. Read more

One part is listed for the 2023 GMC Sierra 3500 — GM GENUINE 84335255.

This table covers the Battery Current 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

2 Battery Current Sensor parts for the 2023 GMC Sierra 3500 come from 2 brands — GM GENUINE and STANDARD MOTOR PRODUCTS. 1 part fits every engine; the other 1 is engine-specific.

Part numbers include GM GENUINE 13505369 and STANDARD MOTOR PRODUCTS SBC111.

This table covers the Battery Terminal Bolt nuts. Read more

This group shows a single part: GM GENUINE 11570961.

This table covers the Blind Spot Detection 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

2 Blind Spot Detection Sensor parts for the 2023 GMC Sierra 3500 come from HELLA. Every part fits both the 6.6L V8 and the 6.6L V8 DIESEL Turbocharged.

This group includes HELLA 013068241 and HELLA 013068041.

This table covers the body-control modules that run lighting, locks and wipers. Read more

2 Body Control Module (BCM) parts for the 2023 GMC Sierra 3500 come from GM GENUINE. Every part fits both the 6.6L V8 and the 6.6L V8 DIESEL Turbocharged.

This group includes GM GENUINE 13531840 and GM GENUINE 84652297.

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

2 Engine Control Module (ECM Computer) parts for the 2023 GMC Sierra 3500 come from GM GENUINE.

This group includes GM GENUINE 12725133 and GM GENUINE 12723810.

This table covers the brackets that mount the Engine Control Module (ECM Computer). 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

This group shows a single part: GM GENUINE 87814257.

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

43 Fuse parts are listed for the 2023 GMC Sierra 3500, from GM GENUINE, BUSSMANN and ACDELCO. GM GENUINE 15305191 carries the "Popular" badge. 10 Amp, 100 Amp, 125 Amp, 15 Amp, 150 Amp, 175 Amp, 2 Amp, 20 Amp, 225 Amp, 25 Amp, 250 Amp, 3 Amp, 30 Amp, 300 Amp, 350 Amp, 4 Amp, 40 Amp, 450 Amp, 5 Amp, 50 Amp, 60 Amp, 7.5 Amp and 70 Amp are all represented, and 25 Amp alone accounts for 5 parts.

This table covers the fuse blocks that hold this vehicle's fuses. Read more

2 Fuse Block parts for the 2023 GMC Sierra 3500 come from DORMAN.

This group includes DORMAN 956120 and DORMAN 956122.

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

One part is listed for the 2023 GMC Sierra 3500 — GM GENUINE 85130076.

This table covers the Jumper cables. 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

4 Jumper Cable parts for the 2023 GMC Sierra 3500 come from GM GENUINE.

Listed part numbers: GM GENUINE 84655050, GM GENUINE 84655061 and GM GENUINE 84655051, plus the other parts above.

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

2 Keyless Entry Module / Receiver parts for the 2023 GMC Sierra 3500 come from GM GENUINE. Every part fits both the 6.6L V8 and the 6.6L V8 DIESEL Turbocharged.

Listed part numbers: GM GENUINE 13523298 and GM GENUINE 13558725.

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

8 Keyless Entry Remote parts for the 2023 GMC Sierra 3500 come from 2 brands — GM GENUINE and DORMAN. The "Popular" part is GM GENUINE 22881479. Every part fits both the 6.6L V8 and the 6.6L V8 DIESEL Turbocharged.

This group includes GM GENUINE 22881479, GM GENUINE 84209236 and DORMAN 99444ST and the remaining parts above.

This table covers the replacement shells for the key fob. Read more

This group shows a single part: DORMAN 95642.

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 2023 GMC Sierra 3500 — GM GENUINE 84716060.

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

4 Parking Aid Sensor parts for the 2023 GMC Sierra 3500 come from 4 brands — BOSCH, GM GENUINE, STANDARD MOTOR PRODUCTS and 1 other brand. Every part fits both the 6.6L V8 and the 6.6L V8 DIESEL Turbocharged.

This group includes BOSCH F00E270754, GM GENUINE 84586217 and STANDARD MOTOR PRODUCTS PPS159 and the remaining 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

12 Parking Aid Sensor Bracket parts for the 2023 GMC Sierra 3500 come from 3 brands — GM GENUINE, TECHPRO and VARIOUS MFR. The "Popular" part is GM GENUINE 84695397. Every part fits both the 6.6L V8 and the 6.6L V8 DIESEL Turbocharged.

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

GM GENUINE supplies both parts for the 2023 GMC Sierra 3500. All of them fit every engine offered in the 2023 Sierra 3500.

Listed part numbers: GM GENUINE 84379747 and GM GENUINE 84601806.

This table covers the Power Take Off (PTO) control modules. Read more

This group shows a single part: GM GENUINE 84741097.

This table covers the Serial Data Gateway 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

This group shows a single part: GM GENUINE 13542838.

This table covers the Side Object Sensor 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

3 Side Object Sensor Module parts for the 2023 GMC Sierra 3500 come from GM GENUINE. Every part fits both the 6.6L V8 and the 6.6L V8 DIESEL Turbocharged.

Part numbers include GM GENUINE 84729106, GM GENUINE 84729107 and GM GENUINE 85536971.

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

8 Speed Sensor parts are listed for the 2023 GMC Sierra 3500, from GM GENUINE and STANDARD MOTOR PRODUCTS. GM GENUINE 24053578 carries the "Popular" badge. 2 parts fit every engine; the other 6 are engine-specific.

Part numbers include GM GENUINE 24053578, GM GENUINE 24043446 and GM GENUINE 24284707, among others listed above.

This table covers the Starter bolts. Read more

2 Starter Bolt parts for the 2023 GMC Sierra 3500 come from GM GENUINE. Every part fits both the 6.6L V8 and the 6.6L V8 DIESEL Turbocharged.

Part numbers include GM GENUINE 97329632 and GM GENUINE 11610633.

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

11 Starter Motor parts for the 2023 GMC Sierra 3500 come from 7 brands — GM GENUINE, FVP, PURE ENERGY and 4 other brands. The "Popular" part is GM GENUINE 12740942.

The New section: 4 options from GM GENUINE, TYC and WAI GLOBAL. GM GENUINE 12740942 is listed in this group.

The Remanufactured section: 7 options from FVP, PURE ENERGY, TERREPOWER and 1 other brand. FVP 12817 is listed in this group.

This table covers the Towing control modules. Read more

One part is listed for the 2023 GMC Sierra 3500 — GM GENUINE 13568702.

This table covers the Video control modules. Read more

This group shows a single part: GM GENUINE 84995709.

This table covers the Wiring Harness clips. Read more

This group shows a single part: GM GENUINE 12337820.