How to replace the accessory drive belt on Chevrolet Trailblazer?

As the first step in accessory Drive Belt replacement you must remove the air cleaner resonator outlet duct. You should utilize a breaker bar fitted with hex-head socket on the Drive Belt tensioner bolt before rotating it clockwise to decrease belt tension. Start by taking off the belt from the generator side of the pulley before minimizing the tension of the belt tensioner. The tensioner bolt requires a breaker bar along with its socket to remove, followed by removing the belt from all pulleys before cleaning and inspecting their belt surfaces. After positioning the Drive Belt on every pulley but the generator one begin installing the breaker bar with hex-head socket on the belt tensioner bolt then conduct clockwise rotation to lower tension. Put the Drive Belt on the generator pulley and reduce tension on the belt tensioner by removing the breaker bar and socket. Verify the Drive Belt installation and alignment before putting back the air cleaner resonator outlet duct.

OEM Chevrolet Trailblazer Drive Belt

Serpentine Belt

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7 Drive Belts found

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Chevrolet Trailblazer Serpentine Belt Part Number: 12576446
$16.13 MSRP: $29.50
You Save: $13.37 (46%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Belt, A/C Compressor; A/C Belt; Belt, Drive
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006-2009 Chevrolet Trailblazer | Base, LS, LT, SS | 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS
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Chevrolet Trailblazer Serpentine Belt Part Number: 12637202
$51.90 MSRP: $92.70
You Save: $40.80 (45%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Belt-Fan & Water Pump & Generator & Power Steering Pump; Serpentine Drive Kit; Accessory Drive Belt; V-Belt; Belt; Belt, Drive
- Replaces: 12576450, 12554029, 10105314, 12550608, 12569347, 24505041
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006-2008 Chevrolet Trailblazer | Base, LS, LT | 8 Cyl 5.3 L GAS
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Chevrolet Trailblazer Serpentine Belt Part Number: 12626222
$34.83 MSRP: $62.20
You Save: $27.37 (44%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Belt, Fan & Water Pump & Generator & Power Steering Pump; Serpentine Drive Kit; Accessory Drive Belt; V-Belt; A/C Belt; Belt, Drive
- Replaces: 12590622
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006-2009 Chevrolet Trailblazer | SS | 8 Cyl 6.0 L GAS
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Chevrolet Trailblazer Serpentine Belt Part Number: 12593774
$44.58 MSRP: $79.59
You Save: $35.01 (44%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Belt, Drive; Serpentine Belt Drive Kit; Accessory Drive Belt; Drive Belt; V-Belt
- Replaces: 12575216, 12569531
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2002-2009 Chevrolet Trailblazer | Base, LS, LT, LTZ, North Face | 6 Cyl 4.2 L GAS
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Chevrolet Trailblazer Serpentine Belt Part Number: 12687927
$9.24 MSRP: $16.49
You Save: $7.25 (44%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Belt-Accessory Drive Primary; Serpentine Belt Drive Kit; Drive Belt; V-Belt
- Replaced by: 25206736
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2021-2024 Chevrolet Trailblazer | ACTIV, LS, LT, RS | 3 Cyl 1.3 L GAS
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Chevrolet Trailblazer Serpentine Belt Part Number: 55512900
$19.54 MSRP: $34.90
You Save: $15.36 (45%)
ADD TO CART
Product Specifications
- Other Name: Belt-Accessory Drive Primary; Serpentine Belt Drive Kit; Drive Belt; V-Belt; Belt, Drive
- Replaced by: 25203354
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2021-2024 Chevrolet Trailblazer | L, LS, LT | 3 Cyl 1.2 L GAS
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Chevrolet Trailblazer Serpentine Belt Part Number: 19244949
$35.37 MSRP: $66.45
You Save: $31.08 (47%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Belt, Water Pump, A/C Compressor, Generator, Power Steering Pump; Serpentine Drive Kit; Accessory Drive Belt.; Belt, Drive
- Replaces: 12575215, 12569543
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2002-2006 Chevrolet Trailblazer | LS, LT, LTZ, North Face | 6 Cyl 4.2 L GAS

Chevrolet Trailblazer Drive Belt

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The Drive Belt in Chevrolet Trailblazer engulfs the parts like alternator as well as A/C compressor and this links the engine. Usually a serpentine belt is utilized which surrounds the above mentioned parts and drives them with the assistance of crankshaft pulley. This design also makes it easy to transmit power so that the parts will perform as they are required to. The Chevrolet Trailblazer models of the past years have incorporated several forms of Drive Belts, the V-belts and the multi-groove belts, according to some Chevrolet Trailblazer Automobile manuals. V-belts offer high coefficient of friction and long service life while multi-groove belts offer flexibility with high levels of efficiency. Drive Belt types affect performance, each type created to meet certain working conditions and difficulties including slippage and misalignment. It is therefore important that the Drive Belt be checked often for wear and tear and replaced immediately if the belt is worn out.

Chevrolet Trailblazer Drive Belt Parts and Q&A

Serpentine Belt
12637202
Q: How to replace the accessory drive belt on Chevrolet Trailblazer?
A:
As the first step in accessory Drive Belt replacement you must remove the air cleaner resonator outlet duct. You should utilize a breaker bar fitted with hex-head socket on the Drive Belt tensioner bolt before rotating it clockwise to decrease belt tension. Start by taking off the belt from the generator side of the pulley before minimizing the tension of the belt tensioner. The tensioner bolt requires a breaker bar along with its socket to remove, followed by removing the belt from all pulleys before cleaning and inspecting their belt surfaces. After positioning the Drive Belt on every pulley but the generator one begin installing the breaker bar with hex-head socket on the belt tensioner bolt then conduct clockwise rotation to lower tension. Put the Drive Belt on the generator pulley and reduce tension on the belt tensioner by removing the breaker bar and socket. Verify the Drive Belt installation and alignment before putting back the air cleaner resonator outlet duct.