How to replace the drive belt for the water pump and generator on Cadillac STS?

The first step for Water Pump and generator belt replacement requires removing the front compartment sight shield when needed. Start by turning the Drive Belt tensioner clockwise until you release the belt tension from the Water Pump pulley and move the Drive Belt off this pulley before releasing the tensioner carefully. The following step involves taking the Drive Belt off from all the accessory drive pulleys. First install the Drive Belt by placing it on the Crankshaft Pulley followed by positioning it onto the tensioner and the generator before rotating the tensioner clockwise to position the belt correctly on the Water Pump with fluent insertion into accessory drive pulleys groove fit. Continue releasing the Drive Belt tensioner until final reinstallation of the front compartment sight shield.

OEM Cadillac STS Drive Belt

Serpentine Belt

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6 Drive Belts found

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Cadillac STS Serpentine Belt Part Number: 12621991
$59.10 MSRP: $105.53
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Product Specifications
- Other Name: Belt, Drive; Serpentine Belt Drive Kit; Accessory Drive Belt; Drive Belt; V-Belt; Alternator Belt
- Replaces: 12578002
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005-2011 Cadillac STS | Base, Platinum | 6 Cyl 3.6 L GAS
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Cadillac STS Serpentine Belt Part Number: 12578062
$32.98 MSRP: $58.90
You Save: $25.92 (45%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Belt, Generator; Serpentine Belt Drive Kit; Accessory Drive Belt; Drive Belt; V-Belt; Alternator Belt; Belt, Drive
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005-2010 Cadillac STS | Base, Platinum | 8 Cyl 4.6 L GAS
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Cadillac STS Serpentine Belt Part Number: 12593189
Product Specifications
- Other Name: Belt, Water Pump, A/C Compressor & Power Steering Pump; Serpentine Drive Kit; Accessory Drive Belt.; A/C Belt; Belt, Drive
- Replaces: 12578063
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005-2010 Cadillac STS | Base, Platinum, V | 8 Cyl 4.4 L GAS, 8 Cyl 4.6 L GAS
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Cadillac STS Alternator Belt Part Number: 12587076
Product Specifications
- Other Name: Belt, Drive; Serpentine Belt Drive Kit; Accessory Drive Belt; Serpentine Belt; Drive Belt; V-Belt
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006-2009 Cadillac STS | V | 8 Cyl 4.4 L GAS
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Cadillac STS Drive Belt Part Number: 12582643
Product Specifications
- Other Name: Belt, Drive; Serpentine Belt Drive Kit; Accessory Drive Belt; Serpentine Belt; V-Belt; Supercharger Belt
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006-2009 Cadillac STS | Base, Platinum, V | 6 Cyl 3.6 L GAS, 8 Cyl 4.4 L GAS, 8 Cyl 4.6 L GAS
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Cadillac STS Serpentine Belt Part Number: 12578000
Product Specifications
- Other Name: Belt, Drive; Serpentine Belt Drive Kit; Accessory Drive Belt; Drive Belt; V-Belt; A/C Belt
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005-2011 Cadillac STS | Base, Platinum | 6 Cyl 3.6 L GAS

Cadillac STS Drive Belt

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Drive Belt is one of those parts that qualify utmost importance as far as the functionality of Cadillac STS cars is concerned. This Drive Belt links the engine to other equipment like the alternator, and A/C compressor, so as to provide efficient transmission of power. Normally, it is made in a serpentine belt configuration and it goes round these parts and the crankshaft pulley to ensure proper functioning. Cadillac STS models use various types of the Drive Belts with V-belts and multi-groove belts which are engaged due to the traction level, durability, and flexibility. Interestingly, most of the Drive Belt s have a really long life expectancy, and the life expectancy of the Drive Belt is about 100000 miles; however, wear influences this figure. The Drive Belt as a part of Cadillac STS combines effectiveness of the car driving, increasing the safety level for driving, owing to the fact that critical parts of the car will work without failures. That it can fit into different STS models is evident in its importance in supporting the Cadillac brand's performance. Finally, there are additional distinguishing factors that cut across the Drive Belt in the auto market; hence: In summary, the Drive Belt is the perfect symbol of the Cadillac brand's focus on durability and power, which young Cadillac STS owners would want to preserve and continue standard excellence of the Cadillac luxury car brand.

Cadillac STS Drive Belt Parts and Q&A

Serpentine Belt
12621991
Q: How to replace the drive belt for the water pump and generator on Cadillac STS?
A:
The first step for Water Pump and generator belt replacement requires removing the front compartment sight shield when needed. Start by turning the Drive Belt tensioner clockwise until you release the belt tension from the Water Pump pulley and move the Drive Belt off this pulley before releasing the tensioner carefully. The following step involves taking the Drive Belt off from all the accessory drive pulleys. First install the Drive Belt by placing it on the Crankshaft Pulley followed by positioning it onto the tensioner and the generator before rotating the tensioner clockwise to position the belt correctly on the Water Pump with fluent insertion into accessory drive pulleys groove fit. Continue releasing the Drive Belt tensioner until final reinstallation of the front compartment sight shield.