2024 GMC Sierra 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

3 Alternator / Generator parts for the 2024 GMC Sierra 2500 come from GM GENUINE.

Part numbers include GM GENUINE 13561042, GM GENUINE 13561045 and GM GENUINE 85063114.

This table covers the Alternator / Generator bolts. Read more

One part is listed for the 2024 GMC Sierra 2500 — GM GENUINE 11611384.

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 2024 GMC Sierra 2500 — LITENS 920112A.

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

14 Battery parts are listed for the 2024 GMC Sierra 2500, from ACDELCO, DEKA, LUCAS and 4 other brands. DEKA 9A48 carries the "Popular" badge.

The AGM (Extended Life) section lists 13 options from ACDELCO, DEKA, LUCAS and 3 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.

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

2 Battery Cable parts for the 2024 GMC Sierra 2500 come from GM GENUINE.

This group includes GM GENUINE 87866332 and GM GENUINE 84810191.

This table covers the Battery Cable Terminal ends. Read more

One part is listed for the 2024 GMC Sierra 2500 — GM GENUINE 84335255.

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

This group shows a single part: HELLA 013068041.

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

This group shows a single part: GM GENUINE 13547771.

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

This group shows a single part: GM GENUINE 12731976.

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

27 Fuse parts are listed for the 2024 GMC Sierra 2500, from GM GENUINE and ACDELCO. GM GENUINE 12004008 carries the "Popular" badge. They are grouped as 10 Amp, 100 Amp, 125 Amp, 15 Amp, 150 Amp, 175 Amp, 20 Amp, 25 Amp, 250 Amp, 3 Amp, 30 Amp, 350 Amp, 40 Amp, 5 Amp, 50 Amp, 60 Amp and 70 Amp, with 15 Amp the largest group at 3 parts from GM GENUINE and ACDELCO.

This table covers the Fuse Box covers. Read more

One part is listed for the 2024 GMC Sierra 2500 — GM GENUINE 87829210.

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

One part is listed for the 2024 GMC Sierra 2500 — GM GENUINE 85130076.

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

3 Keyless Entry Remote parts for the 2024 GMC Sierra 2500 come from GM GENUINE.

This group includes GM GENUINE 13560219, GM GENUINE 13560215 and GM GENUINE 13560216.

This table covers the modules that control the exterior lighting. Read more

This group shows a single part: GM GENUINE 86379072.

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

GM GENUINE supplies both parts for the 2024 GMC Sierra 2500.

Part numbers include GM GENUINE 85131832 and GM GENUINE 85131831.

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

5 Parking Aid Sensor parts for the 2024 GMC Sierra 2500 come from 4 brands — GM GENUINE, BOSCH, STANDARD MOTOR PRODUCTS and 1 other brand. The "Popular" part is GM GENUINE 84586217.

Part numbers include GM GENUINE 84586217, BOSCH F00E270754 and GM GENUINE 84586218, among others listed 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

11 Parking Aid Sensor Bracket parts for the 2024 GMC Sierra 2500 come from 3 brands — GM GENUINE, TECHPRO and VARIOUS MFR. The "Popular" part is GM GENUINE 84695397.

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

One part is listed for the 2024 GMC Sierra 2500 — GM GENUINE 84962936.

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

This group shows a single part: GM GENUINE 40009388.

This table covers the Rain 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

This group shows a single part: GM GENUINE 85880859.

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 13553311.

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

2 Side Object Sensor Module parts for the 2024 GMC Sierra 2500 come from GM GENUINE.

Part numbers include GM GENUINE 85774392 and GM GENUINE 85774391.

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

7 Speed Sensor parts are listed for the 2024 GMC Sierra 2500, from STANDARD MOTOR PRODUCTS and GM GENUINE. GM GENUINE 24053578 carries the "Popular" badge.

Listed part numbers: GM GENUINE 24053578, GM GENUINE 24043446 and GM GENUINE 24052278, plus the other parts above.

This table covers the Starter bolts. Read more

2 Starter Bolt parts for the 2024 GMC Sierra 2500 come from GM GENUINE.

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

This group shows a single part: GM GENUINE 12740942.

This table covers the Video control modules. Read more

This group shows a single part: GM GENUINE 85855191.

This table covers the Wiring Harness clips. Read more

This group shows a single part: GM GENUINE 12337820.