2025 Chevrolet Blazer Electrical Parts

This table covers the Active Noise Cancellation 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 Active Noise Cancellation Module parts for the 2025 Chevrolet Blazer come from GM GENUINE.

Part numbers include GM GENUINE 85144752 and GM GENUINE 85144751.

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

7 Alternator / Generator parts are listed for the 2025 Chevrolet Blazer, from GM GENUINE, SKP, PURE ENERGY and 2 other brands. GM GENUINE 13553838 carries the "Popular" badge.

In the New grade, GM GENUINE and SKP supply 3 parts: brand-new units rather than rebuilt ones. A representative part number is GM GENUINE 13553838.

In the Remanufactured grade, PURE ENERGY, REMY and TERREPOWER supply 3 parts: factory-rebuilt units with new wear components. A representative part number is PURE ENERGY 10351.

1 ungrouped part is not assigned to a grade, with the same engine-level match.

Listed part numbers: GM GENUINE 13553838, GM GENUINE 13507127 and SKP SK13507127, plus the other parts above.

This table covers the Alternator / Generator bolts. Read more

This group shows a single part: GM GENUINE 11611102.

This table covers the Antenna 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 85774230.

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

This group shows a single part: GM GENUINE 13540633.

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

13 Battery parts for the 2025 Chevrolet Blazer come from 5 brands — ACDELCO, DEKA, EXIDE and 2 other brands. The "Popular" part is ACDELCO 47AGM.

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 7 Battery Cable parts for the 2025 Chevrolet Blazer.

Listed part numbers: GM GENUINE 84681646, GM GENUINE 84690949 and GM GENUINE 85525336, plus the other parts above.

This table covers the Battery Cable Terminal ends. Read more

This group shows a single part: GM GENUINE 84710785.

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

One part is listed for the 2025 Chevrolet Blazer — STANDARD MOTOR PRODUCTS BSC123.

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

One part is listed for the 2025 Chevrolet Blazer — GM GENUINE 84155667.

This table covers the Battery Terminal Bolt nuts. Read more

GM GENUINE supplies both parts for the 2025 Chevrolet Blazer. 1 part fits every engine; the other 1 is engine-specific.

Listed part numbers: GM GENUINE 11610091 and GM GENUINE 11570961.

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

GM GENUINE supplies the 4 Body Control Module (BCM) parts for the 2025 Chevrolet Blazer.

Part numbers include GM GENUINE 22940857, GM GENUINE 13534192 and GM GENUINE 13563015, among others listed above.

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 2025 Chevrolet Blazer — GM GENUINE 87827523.

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

This group shows a single part: GM GENUINE 84098783.

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

GM GENUINE supplies both parts for the 2025 Chevrolet Blazer.

Part numbers include GM GENUINE 12725787 and GM GENUINE 12725663.

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

One part is listed for the 2025 Chevrolet Blazer — GM GENUINE 84672986.

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

22 Fuse parts for the 2025 Chevrolet Blazer come from 2 brands — GM GENUINE and ACDELCO. The "Popular" part is GM GENUINE 12004008. 14 parts fit every engine; the other 8 are engine-specific.

In the 10 Amp grade, GM GENUINE supplies 1 part: grouped under the catalog's "10 Amp" designation — the notes column spells out what sets them apart. A representative part number is GM GENUINE 19209792.

In the 100 Amp grade, GM GENUINE supplies 1 part: grouped under the catalog's "100 Amp" designation — the notes column spells out what sets them apart. A representative part number is GM GENUINE 84070942.

The 15 Amp section lists 3 options from GM GENUINE and ACDELCO — grouped under the catalog's "15 Amp" designation — the notes column spells out what sets them apart. GM GENUINE 12004008 is listed in this group.

The 150 Amp section lists 1 option from GM GENUINE — grouped under the catalog's "150 Amp" designation — the notes column spells out what sets them apart. GM GENUINE 84070922 is listed in this group.

In the 175 Amp grade, GM GENUINE supplies 1 part: grouped under the catalog's "175 Amp" designation — the notes column spells out what sets them apart. A representative part number is GM GENUINE 15305191.

The 20 Amp section lists 2 options from GM GENUINE and ACDELCO — grouped under the catalog's "20 Amp" designation — the notes column spells out what sets them apart. GM GENUINE 12004009 is listed in this group.

In the 25 Amp grade, ACDELCO and GM GENUINE supply 3 parts: grouped under the catalog's "25 Amp" designation — the notes column spells out what sets them apart. A representative part number is ACDELCO ATM2525.

In the 250 Amp grade, GM GENUINE supplies 1 part: grouped under the catalog's "250 Amp" designation — the notes column spells out what sets them apart. A representative part number is GM GENUINE 84116255.

In the 3 Amp grade, ACDELCO supplies 1 part: grouped under the catalog's "3 Amp" designation — the notes column spells out what sets them apart. A representative part number is ACDELCO ATC325.

In the 30 Amp grade, GM GENUINE supplies 1 part: grouped under the catalog's "30 Amp" designation — the notes column spells out what sets them apart. A representative part number is GM GENUINE 22917202.

The 350 Amp section lists 1 option from GM GENUINE — grouped under the catalog's "350 Amp" designation — the notes column spells out what sets them apart. GM GENUINE 84116257 is listed in this group.

The 40 Amp section lists 2 options from ACDELCO and GM GENUINE — grouped under the catalog's "40 Amp" designation — the notes column spells out what sets them apart. ACDELCO MAX405 is listed in this group.

In the 5 Amp grade, ACDELCO supplies 1 part: grouped under the catalog's "5 Amp" designation — the notes column spells out what sets them apart. A representative part number is ACDELCO ATC525.

In the 50 Amp grade, ACDELCO supplies 1 part: grouped under the catalog's "50 Amp" designation — the notes column spells out what sets them apart. A representative part number is ACDELCO MAX50.

In the 70 Amp grade, GM GENUINE supplies 2 parts: grouped under the catalog's "70 Amp" designation — the notes column spells out what sets them apart. A representative part number is GM GENUINE 84070937.

This table covers the Fuse Box covers. Read more

2 Fuse Box Cover parts for the 2025 Chevrolet Blazer come from GM GENUINE.

Listed part numbers: GM GENUINE 26341792 and GM GENUINE 26389504.

This table covers the Hands Free Vehicle Access 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 2025 Chevrolet Blazer — GM GENUINE 85039379.

This table covers the brackets that mount the Hands Free Vehicle Access Module. 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 2025 Chevrolet Blazer — GM GENUINE 42485326.

This table covers the Hands Free Vehicle Access 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

GM GENUINE supplies both parts for the 2025 Chevrolet Blazer.

Part numbers include GM GENUINE 23366530 and GM GENUINE 85523854.

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

2 Horn parts for the 2025 Chevrolet Blazer come from GM GENUINE.

Listed part numbers: GM GENUINE 84782549 and GM GENUINE 85136991.

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

This group shows a single part: GM GENUINE 87840626.

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

GM GENUINE supplies the 9 Keyless Entry Module / Receiver parts for the 2025 Chevrolet Blazer. GM GENUINE 85026365 carries the "Popular" badge.

Part numbers include GM GENUINE 85026365, GM GENUINE 85026366 and GM GENUINE 13540045, among others listed above.

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

8 Keyless Entry Remote parts are listed for the 2025 Chevrolet Blazer, from GM GENUINE and DORMAN.

This group includes DORMAN 99756ST, GM GENUINE 13547829 and GM GENUINE 13547830 and the remaining parts above.

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

One part is listed for the 2025 Chevrolet Blazer — GM GENUINE 13569497.

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

2 Park Assist (PAS) Camera Module parts for the 2025 Chevrolet Blazer come from GM GENUINE.

Part numbers include GM GENUINE 84983035 and GM GENUINE 86558042.

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 are listed for the 2025 Chevrolet Blazer, from GM GENUINE, TECHPRO and VARIOUS MFR. GM GENUINE 84586217 carries the "Popular" badge. 1 part fits every engine; the other 7 are engine-specific.

Listed part numbers: GM GENUINE 84586217, GM GENUINE 84586218 and GM GENUINE 87821667, 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

GM GENUINE supplies the 8 Parking Aid Sensor Bracket parts for the 2025 Chevrolet Blazer.

Listed part numbers: GM GENUINE 42745564, GM GENUINE 42745565 and GM GENUINE 42745566, plus the other parts above.

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

3 Power Supply Module (TIPM) parts for the 2025 Chevrolet Blazer come from GM GENUINE.

This group includes GM GENUINE 13510484, GM GENUINE 84738000 and GM GENUINE 84738001.

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

GM GENUINE supplies both parts for the 2025 Chevrolet Blazer.

Part numbers include GM GENUINE 85880852 and GM GENUINE 85880857.

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

GM GENUINE supplies both parts for the 2025 Chevrolet Blazer.

Part numbers include GM GENUINE 13542838 and GM GENUINE 13558602.

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

GM GENUINE supplies the 6 Side Object Sensor Module parts for the 2025 Chevrolet Blazer.

This group includes GM GENUINE 84729106, GM GENUINE 84729107 and GM GENUINE 85698872 and the remaining parts above.

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

2 Speed Sensor parts for the 2025 Chevrolet Blazer come from GM GENUINE.

Listed part numbers: GM GENUINE 24295280 and GM GENUINE 24298199.

This table covers the Speed Sensor Reluctor rings. Read more

2 Speed Sensor Reluctor Ring parts for the 2025 Chevrolet Blazer come from GM GENUINE.

This group includes GM GENUINE 24230744 and GM GENUINE 24061032.

This table covers the Starter bolts. Read more

One part is listed for the 2025 Chevrolet Blazer — GM GENUINE 11588740.

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

6 Starter Motor parts are listed for the 2025 Chevrolet Blazer, from GM GENUINE, TYC, WAI GLOBAL and 2 other brands. TYC 116349 carries the "Popular" badge.

New: 3 parts, from TYC, GM GENUINE and WAI GLOBAL. A representative part number is TYC 116349.

Remanufactured: 2 parts, from REMY and TERREPOWER. A representative part number is REMY 26023.

1 ungrouped part is not assigned to a grade, with the same engine-level match.

Listed part numbers: TYC 116349, GM GENUINE 12667973 and WAI GLOBAL 16349N, plus the other parts above.

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

This group shows a single part: GM GENUINE 12654121.

This table covers the Video control modules. Read more

One part is listed for the 2025 Chevrolet Blazer — GM GENUINE 86534153.

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 85532096.