How to replace the alternator on a 4.2L engine on 2009 Chevrolet Trailblazer?

In order to change the generator in a 4.2L engine, the battery negative cable should be disconnected, the drive belt removed and the A/C line mounting bracket bolt removed. Take off the engine lift hook and generator mounting bolts. Install the generator, engine lift hook and A/C line bracket again and then reconnect the battery negative cable.

OEM 2009 Chevrolet Trailblazer Alternator

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2009 Chevrolet Trailblazer Alternator Part Number: 15288860
$308.03 MSRP: $557.52
You Save: $249.49 (45%)
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Product Specifications
- Other Name: Generator Assembly; Generator, Engine Electrical
- Item Weight: 15.80 Pounds
- Item Dimensions: 9.1 x 8.3 x 8.1 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 15288860
- Warranty: This genuine part is guaranteed by GM's factory warranty.
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Fits the following 2009 Chevrolet Trailblazer Submodels:
- SS | 8 Cyl 6.0 L GAS
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2009 Chevrolet Trailblazer Alternator Part Number: 15225928
$249.93 MSRP: $455.23
You Save: $205.30 (46%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Generator; Generator, Engine Electrical
- Item Weight: 16.40 Pounds
- Item Dimensions: 9.5 x 8.2 x 8.5 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 15225928
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2009 Chevrolet Trailblazer Submodels:
- Base, LS, LT | 6 Cyl 4.2 L GAS

2009 Chevrolet Trailblazer Alternator

With a comprehensive array of OEM 2009 Chevrolet Trailblazer Alternator, from fuel pumps to door handles, our website is a one-stop-shop for your needs. All our genuine 2009 Chevrolet Trailblazer Alternator are backed by the manufacturer's warranty and are offered at competitive prices in the market. Rest assured, you can shop with complete confidence.

2009 Chevrolet Trailblazer Alternator Parts and Q&A

Q: How to replace the alternator on a 4.2L engine on 2009 Chevrolet Trailblazer?
A: In order to change the generator in a 4.2L engine, the battery negative cable should be disconnected, the drive belt removed and the A/C line mounting bracket bolt removed. Take off the engine lift hook and generator mounting bolts. Install the generator, engine lift hook and A/C line bracket again and then reconnect the battery negative cable.