2021 Chevrolet Colorado 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

23 Alternator / Generator parts for the 2021 Chevrolet Colorado come from 10 brands — GM GENUINE, BOSCH, PURE ENERGY and 7 other brands. The "Popular" part is GM GENUINE 13520817.

The New section lists 10 options from GM GENUINE, SKP, TYC and 2 other brands — brand-new units rather than rebuilt ones. GM GENUINE 13520817 is listed in this group.

The Remanufactured section lists 13 options from PURE ENERGY, REMY, TERREPOWER and 3 other brands — factory-rebuilt units with new wear components. BOSCH AL8859X is listed in this group.

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 24590383.

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

5 Alternator / Generator Pulley parts are listed for the 2021 Chevrolet Colorado, from CONTINENTAL, LITENS and GM GENUINE.

Part numbers include CONTINENTAL 49984, CONTINENTAL 49987 and GM GENUINE 24585484, among others listed above.

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

One part is listed for the 2021 Chevrolet Colorado — GM GENUINE 13520523.

This table covers the Automatic Headlamp 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 2021 Chevrolet Colorado — GM GENUINE 13525289.

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

18 Battery parts are listed for the 2021 Chevrolet Colorado, from DEKA, ACDELCO, LUCAS and 6 other brands. DEKA 9A48 carries the "Popular" badge.

The AGM (Extended Life) section lists 16 options from DEKA, ACDELCO, LUCAS and 5 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 2 options from FULLRIVER — grouped under the catalog's "Performance AGM (Extended Life + Increased Power)" designation — the notes column spells out what sets them apart. FULLRIVER FT68048 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

6 Battery Cable parts for the 2021 Chevrolet Colorado come from GM GENUINE.

Listed part numbers: GM GENUINE 84511231, GM GENUINE 84388412 and GM GENUINE 84511232, plus the other parts above.

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

This group shows a single part: GM GENUINE 13505369.

This table covers the Battery Terminal Bolt nuts. Read more

This group shows a single part: GM GENUINE 11570961.

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

This group shows a single part: GM GENUINE 13534191.

This table covers the brackets that mount the Body Control Module (BCM). 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 84810707.

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

4 Engine Control Module (ECM Computer) parts for the 2021 Chevrolet Colorado come from 2 brands — ACDELCO and GM GENUINE.

Listed part numbers: ACDELCO 12700116, ACDELCO 24000479 and GM GENUINE 12721353, plus the other parts above.

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

3 Engine Control Module (ECM Computer) Bracket parts for the 2021 Chevrolet Colorado come from GM GENUINE.

Listed part numbers: GM GENUINE 23302584, GM GENUINE 84184258 and GM GENUINE 84102574.

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

58 Fuse parts are listed for the 2021 Chevrolet Colorado, from BUSSMANN, GM GENUINE and ACDELCO. BUSSMANN ATM10LP carries the "Popular" badge. They are grouped as 10 Amp, 100 Amp, 125 Amp, 15 Amp, 150 Amp, 175 Amp, 2 Amp, 20 Amp, 200 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, with 15 Amp the largest group at 6 parts from BUSSMANN, GM GENUINE and ACDELCO.

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

One part is listed for the 2021 Chevrolet Colorado — GM GENUINE 22868677.

This table covers the horn contacts in the steering column. Read more

One part is listed for the 2021 Chevrolet Colorado — GM GENUINE 84433483.

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

This group shows a single part: GM GENUINE 84511235.

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

This group shows a single part: GM GENUINE 13503205.

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

10 Keyless Entry Remote parts for the 2021 Chevrolet Colorado come from 2 brands — GM GENUINE and DORMAN. The "Popular" part is GM GENUINE 22881479. 7 parts fit every engine; the other 3 are engine-specific.

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

2 Keyless Entry Remote Case parts for the 2021 Chevrolet Colorado come from DORMAN. Every part fits all 3 engine options (2.5L L4, 2.8L L4 DIESEL Turbocharged and 3.6L V6).

Listed part numbers: DORMAN 95642 and DORMAN 92025.

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 2021 Chevrolet Colorado come from 3 brands — GM GENUINE, BOSCH and TECHPRO. Every part fits all 3 engine options (2.5L L4, 2.8L L4 DIESEL Turbocharged and 3.6L V6).

Part numbers include BOSCH F00E270754, GM GENUINE 84586217 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

4 Parking Aid Sensor Bracket parts for the 2021 Chevrolet Colorado come from GM GENUINE. Every part fits all 3 engine options (2.5L L4, 2.8L L4 DIESEL Turbocharged and 3.6L V6).

Listed part numbers: GM GENUINE 84636768, GM GENUINE 84636766 and GM GENUINE 84636769, plus the other parts above.

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 13533490.