2020 Chevrolet Express 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

21 Alternator / Generator parts are listed for the 2020 Chevrolet Express 2500, from TERREPOWER, GM GENUINE, WAI GLOBAL and 5 other brands. GM GENUINE 84206550 carries the "Popular" badge.

In the New grade, GM GENUINE, WAI GLOBAL, SKP and 2 other brands supply 11 parts: brand-new units rather than rebuilt ones. A representative part number is GM GENUINE 84206550.

In the Remanufactured grade, PURE ENERGY, REMY, TERREPOWER and 1 other brand supply 10 parts: factory-rebuilt units with new wear components. A representative part number is FVP 14007.

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

2 Anti-Theft Control Module parts for the 2020 Chevrolet Express 2500 come from GM GENUINE.

This group includes GM GENUINE 20901252 and GM GENUINE 84209962.

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

This group shows a single part: GM GENUINE 13498957.

This table covers the backup alarms that sound in reverse. Read more

This group shows a single part: GM GENUINE 23239058.

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

5 Battery parts for the 2020 Chevrolet Express 2500 come from 4 brands — DEKA, ACDELCO, FVP and 1 other brand. The "Popular" part is DEKA 9A78DT.

In the AGM (Extended Life) grade, DEKA, ACDELCO and FVP supply 4 parts: grouped under the catalog's "AGM (Extended Life)" designation — the notes column spells out what sets them apart. A representative part number is DEKA 9A78DT.

In the Performance AGM (Extended Life + Increased Power) grade, FULLRIVER supplies 1 part: grouped under the catalog's "Performance AGM (Extended Life + Increased Power)" designation — the notes column spells out what sets them apart. A representative part number is FULLRIVER FT82578.

Listed part numbers: DEKA 9A78DT, ACDELCO 78XAGM and DEKA 9A78, plus the other parts 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

GM GENUINE supplies the 12 Battery Cable parts for the 2020 Chevrolet Express 2500. GM GENUINE 84884431 carries the "Popular" badge.

This table covers the Battery Terminal Bolt nuts. Read more

GM GENUINE supplies the 4 Battery Terminal Bolt / Nut parts for the 2020 Chevrolet Express 2500.

Part numbers include GM GENUINE 19115561, GM GENUINE 11610073 and GM GENUINE 11570961, among others listed above.

This table covers the covers that protect battery terminals. Read more

This group shows a single part: GM GENUINE 12010050.

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

GM GENUINE supplies both parts for the 2020 Chevrolet Express 2500.

Part numbers include GM GENUINE 84922494 and GM GENUINE 22915542.

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

One part is listed for the 2020 Chevrolet Express 2500 — GM GENUINE 23231327.

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

This group shows a single part: BUSSMANN CB21225.

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

GM GENUINE supplies the 4 Engine Control Module (ECM Computer) parts for the 2020 Chevrolet Express 2500.

Listed part numbers: GM GENUINE 19432269, GM GENUINE 12703872 and GM GENUINE 12692201, 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

GM GENUINE supplies both parts for the 2020 Chevrolet Express 2500.

Part numbers include GM GENUINE 84268449 and GM GENUINE 25840191.

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

53 Fuse parts for the 2020 Chevrolet Express 2500 come from 3 brands — BUSSMANN, GM GENUINE and ACDELCO. The "Popular" part is BUSSMANN ATM10LP. Grades run from 10 Amp through 70 Amp; 25 Amp is the most populated section, led by BUSSMANN, ACDELCO and GM GENUINE.

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

One part is listed for the 2020 Chevrolet Express 2500 — GM GENUINE 15151221.

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

8 Horn parts for the 2020 Chevrolet Express 2500 come from 2 brands — FIAMM and GM GENUINE. The "Popular" part is FIAMM 72112.

The Accessory Replacement section lists 5 options from FIAMM — grouped under the catalog's "Accessory Replacement" designation — the notes column spells out what sets them apart. FIAMM 72112 is listed in this group.

In the Standard Replacement grade, FIAMM and GM GENUINE supply 3 parts: built to original-equipment specification. A representative part number is FIAMM 7421122.

Listed part numbers: FIAMM 72112, FIAMM 7410024 and FIAMM 6602023, plus the other parts above.

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

This group shows a single part: GM GENUINE 25889495.

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

One part is listed for the 2020 Chevrolet Express 2500 — GM GENUINE 20863945.

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

GM GENUINE supplies the 5 Keyless Entry Remote parts for the 2020 Chevrolet Express 2500. GM GENUINE 20877108 carries the "Popular" badge.

Listed part numbers: GM GENUINE 20877108, GM GENUINE 22849638 and GM GENUINE 22953234, plus the other parts 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

This group shows a single part: GM GENUINE 22743052.

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

9 Parking Aid Sensor parts are listed for the 2020 Chevrolet Express 2500, from BOSCH, STANDARD MOTOR PRODUCTS, AUTOTECNICA and 6 other brands. BOSCH 0263043551 carries the "Popular" badge.

Part numbers include BOSCH 0263043551, STANDARD MOTOR PRODUCTS PPS44 and AUTOTECNICA GM1319983, 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

GM GENUINE supplies both parts for the 2020 Chevrolet Express 2500.

Part numbers include GM GENUINE 22801410 and GM GENUINE 22801411.

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

This group shows a single part: GM GENUINE 84393460.

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

One part is listed for the 2020 Chevrolet Express 2500 — GM GENUINE 84434829.

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

6 Speed Sensor parts for the 2020 Chevrolet Express 2500 come from 6 brands — HOLSTEIN, VEMO, DELPHI and 3 other brands.

The Economy section lists 2 options from HOLSTEIN and VEMO — the catalog's value-priced group. HOLSTEIN 2VSS0527 is listed in this group.

Standard Replacement: 4 parts, from DELPHI, GM GENUINE, STANDARD MOTOR PRODUCTS and 1 other brand. A representative part number is DELPHI SS12245.

Part numbers include HOLSTEIN 2VSS0527, VEMO V51720313 and DELPHI SS12245, among others listed above.

This table covers the Starter bolts. Read more

3 Starter Bolt parts are listed for the 2020 Chevrolet Express 2500, from GM GENUINE and DORMAN.

Part numbers include DORMAN 72004, GM GENUINE 11588740 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

21 Starter Motor parts are listed for the 2020 Chevrolet Express 2500, from REMY, WAI GLOBAL, TERREPOWER and 5 other brands. GM GENUINE 12740952 carries the "Popular" badge.

New: 11 parts, from WAI GLOBAL, GM GENUINE, REMY and 3 other brands. A representative part number is GM GENUINE 12740952.

Remanufactured: 10 parts, from FVP, PURE ENERGY, REMY and 3 other brands. A representative part number is BOSCH SR8600X.

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

2 Starter Motor Heat Shield parts for the 2020 Chevrolet Express 2500 come from GM GENUINE.

Part numbers include GM GENUINE 12633476 and GM GENUINE 12668713.

This table covers the Wiring Harness clips. Read more

One part is listed for the 2020 Chevrolet Express 2500 — GM GENUINE 12337820.

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

This group shows a single part: GM GENUINE 87845214.