How to replace the alternator (LA3, LY9) on 2003 Cadillac CTS?

The procedure to change the generator would include; first, disconnect the negative cable of the battery, next, take out the resonator of intake air and drive belt tensioner. Unscrew the mounting bolts of the generator, pick up the generator, and unscrew the wiring harness and battery positive lead. Install the new generator, reconnect the wiring and make everything in place again.

OEM 2003 Cadillac CTS Alternator

Generator

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2003 Cadillac CTS Alternator Part Number: 25738783
$447.16 MSRP: $809.34
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Product Specifications
- Other Name: Generator
- Item Weight: 21.80 Pounds
- Item Dimensions: 17.0 x 16.3 x 8.2 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 25738783
- Warranty: This genuine part is guaranteed by GM's factory warranty.
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Fits the following 2003 Cadillac CTS Submodels:
- Base, Luxury, Luxury Sport | 6 Cyl 3.2 L GAS

2003 Cadillac CTS Alternator

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2003 Cadillac CTS Alternator Parts and Q&A

Q: How to replace the alternator (LA3, LY9) on 2003 Cadillac CTS?
A: The procedure to change the generator would include; first, disconnect the negative cable of the battery, next, take out the resonator of intake air and drive belt tensioner. Unscrew the mounting bolts of the generator, pick up the generator, and unscrew the wiring harness and battery positive lead. Install the new generator, reconnect the wiring and make everything in place again.

Related 2003 Cadillac CTS Parts

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2004 Cadillac CTS Alternator