How to remove and install an alternator on Chevrolet Trailblazer?

Start by disconnecting the battery negative cable followed by removing the Drive Belt before generator removal. First disconnect the battery positive cable nut from the generator then disconnect the a/c line mounting bracket bolt from the engine lift hook. The next procedure involves taking out the lift hook after removing its right engine hook bolts. The generator removal starts when you remove its 3 mounting bolts to extract the unit from the system. When installing the generator replace it with 3 bolts while torquing them to 50 n.m (37 lb ft). To secure the battery positive cable on the generator, use the nut as directed and tighten to 9 n.m (80 lb in). The engine lift hook requires two bolts for installation which should reach torque of 50 n.m (37 lb ft) when tightened. After attaching the a/c line bracket to the lift hook it should be secured with the bolt while tightening it to 10 n.m (89 lb in). After installation of the Drive Belt complete the procedure by reconnecting the battery negative cable.

OEM Chevrolet Trailblazer Alternator

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11 Alternators found

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Chevrolet Trailblazer Alternator
Part Number: 22781131
$266.46 MSRP: $587.66
You Save: $321.20 (55%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Generator Assembly; Generator, Engine Electrical
- Replaces: 19118686, 15847291, 94665137, 15222342, 15124532, 15222341, 15226003, 20989651
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006-2007 Chevrolet Trailblazer | LS, LT | 8 Cyl 5.3 L GAS
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Chevrolet Trailblazer Alternator
Part Number: 13535317
$930.30 MSRP: $1676.23
You Save: $745.93 (45%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Generator Assembly-.; Generator, Engine Electrical
- Replaced by: 42911850
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2021-2023 Chevrolet Trailblazer | L, LS, LT | 3 Cyl 1.2 L GAS
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Chevrolet Trailblazer Alternator
Part Number: 19244750
$345.82 MSRP: $674.56
You Save: $328.74 (49%)
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Product Specifications
- Other Name: Generator Assembly, (Remanufacture); Generator, Engine Electrical
- Replaces: 19151920, 10464468
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2002-2005 Chevrolet Trailblazer | LS, LT, LTZ, North Face | 6 Cyl 4.2 L GAS
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Chevrolet Trailblazer Alternator
Part Number: 42851508
$930.30 MSRP: $1676.23
You Save: $745.93 (45%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Generator Assembly-.; Generator, Engine Electrical
- Replaced by: 42911850
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2024 Chevrolet Trailblazer | LS, LT | 3 Cyl 1.2 L GAS
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Chevrolet Trailblazer Alternator
Part Number: 42851507
$991.29 MSRP: $1786.11
You Save: $794.82 (45%)
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Product Specifications
- Other Name: Generator Assembly-.; Generator, Engine Electrical
- Replaced by: 42911849
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2024 Chevrolet Trailblazer | ACTIV, LS, LT, RS | 3 Cyl 1.3 L GAS
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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
- 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 Alternator
Part Number: 15225928
$249.93 MSRP: $455.23
You Save: $205.30 (46%)
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Product Specifications
- Other Name: Generator; Generator, Engine Electrical
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007-2009 Chevrolet Trailblazer | Base, LS, LT | 6 Cyl 4.2 L GAS
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Chevrolet Trailblazer Alternator
Part Number: 13526558
$991.29 MSRP: $1786.11
You Save: $794.82 (45%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Generator Assembly-.; Generator, Engine Electrical
- Replaced by: 42911849
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2021-2023 Chevrolet Trailblazer | ACTIV, LS, LT, RS | 3 Cyl 1.3 L GAS
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Chevrolet Trailblazer Alternator
Part Number: 19118694
Product Specifications
- Other Name: Generator Assembly; Generator, Engine Electrical
- Replaces: 15200110
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006 Chevrolet Trailblazer | LS, LT | 6 Cyl 4.2 L GAS
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Chevrolet Trailblazer Alternator
Part Number: 19118693
Product Specifications
- Other Name: Generator Assembly; Generator, Engine Electrical
- Replaces: 15288861
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006 Chevrolet Trailblazer | SS | 8 Cyl 6.0 L GAS
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Chevrolet Trailblazer Alternator
Part Number: 15225927
Product Specifications
- Other Name: Generator Assembly; Generator, Engine Electrical
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007-2008 Chevrolet Trailblazer | Base, LS, LT | 8 Cyl 5.3 L GAS

Chevrolet Trailblazer Alternator

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Chevrolet Trailblazer Alternator Parts Questions & Experts Answers

Alternator
19244750
Q: How to remove and install an alternator on Chevrolet Trailblazer?
A: Start by disconnecting the battery negative cable followed by removing the Drive Belt before generator removal. First disconnect the battery positive cable nut from the generator then disconnect the a/c line mounting bracket bolt from the engine lift hook. The next procedure involves taking out the lift hook after removing its right engine hook bolts. The generator removal starts when you remove its 3 mounting bolts to extract the unit from the system. When installing the generator replace it with 3 bolts while torquing them to 50 n.m (37 lb ft). To secure the battery positive cable on the generator, use the nut as directed and tighten to 9 n.m (80 lb in). The engine lift hook requires two bolts for installation which should reach torque of 50 n.m (37 lb ft) when tightened. After attaching the a/c line bracket to the lift hook it should be secured with the bolt while tightening it to 10 n.m (89 lb in). After installation of the Drive Belt complete the procedure by reconnecting the battery negative cable.

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