Cadillac STS Pulleys

Your One-Stop Shop For Trusted Cadillac STS Pulleys

If you’re in search of Cadillac STS Pulleys aftermarket or OEM parts, consider your search over! Advance Auto Parts carries 9 Pulleys from top brands with prices ranging from $12.49 to $102.99.

Beyond great prices, we stock trusted brands manufacturing all types of Pulleys for your Cadillac STS. Of the 4 OEM and aftermarket parts brands we carry, some of the most popular are Dayco, Litens, and Gates.

And don’t forget to read customer reviews across all Pulleys categories in our catalog. Buy with confidence by leveraging past customer experiences of our aftermarket and OEM parts.

At Advance Auto Parts, we don’t think top quality Pulleys have to cost top dollar, and we prove it. Browse our top Cadillac STS Pulleys below, order online to ship to your home, or head into your nearest Advance Auto Parts location to get started.

Essential Cadillac STS Pulleys

Litens – O.E Quality Idler/Tensioner Pulley: Direct Fit, Steel, 70 mm Diameter (Part No.900600A)

O.E Quality Idler/Tensioner Pulley: Direct Fit, Steel, 70 mm Diameter

from

$102.99
This Litens pulley is supplied by one of the largest original equipment suppliers in the world and meets all form, fit, and performance characteristics of the original equipment part . Like the G.M. Original Equipment pulley, the Litens replacement part is constructed of heavy duty steel for long life and trouble free performance. This pulley is supplied with a mounting bolt, front dustshield and aluminum spacer/post to facilitate installation. Litens is the world’s largest supplier of original equipment (O.E.) power transmission products. At Litens, we design systems that are more efficient, resulting in tangible fuel economy/emissions benefits. Litens holds over 2000 patents and continues to respond to the ever-changing automotive industry by investing heavily in new technology, facilities, and people. 90% of our line is made of products coming from the OE manufacturer, which makes the Litens Tensioning Products portfolio the purest OE tensioning line in the North American aftermarket.
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Dorman – Idler Pulley (Pulley only) (Part No.419-610)

Idler Pulley (Pulley only)

from

$12.49
This accessory drive belt tensioner pulley is designed to match the fit and function of the original pulley on specified applications. Made of quality materials, it is engineered for reliable performance and durability.

Product Features:
  • Direct replacement – this accessory drive belt tensioner pulley is designed to match the fit and function of the original pulley on specified applications
  • Restores functionality – reliable replacement for an original pulley that has failed due to vibration or corrosion
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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Litens – O.E Quality Idler/Tensioner Pulley: Direct Fit, Steel, 70 mm Diameter (Part No.900248A)

O.E Quality Idler/Tensioner Pulley: Direct Fit, Steel, 70 mm Diameter

from

$47.99
This pulley is manufactured by Litens Automotive the inventor of the first automatic belt tensioner in 1979 and today the world’s largest supplier of Original Equipment (O.E.) belt tensioning and routing products. This pulley is produced for serpentine belt routing applications and as the pulley component on automatic tensioner applications. This pulley conforms to original equipment material, tolerances, and specifications. The part is made in Canada using the O.E. specified design and meets all performance and durability requirements. Heavy duty steel construction for long life and trouble-free performance. Applications include Cadillac. This assembly includes: pulley, bolt, front dust shield, and rear spacer. Litens is the world’s largest supplier of original equipment (O.E.) power transmission products. At Litens, we design systems that are more efficient, resulting in tangible fuel economy/emissions benefits. Litens holds over 2000 patents and continues to respond to the ever-changing automotive industry by investing heavily in new technology, facilities, and people. 90% of our line is made of products coming from the OE manufacturer, which makes the Litens Tensioning Products portfolio the purest OE tensioning line in the North American aftermarket.
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Dayco – Serpentine Assy. Idler/Tensioner Pulley; Steel, 70mm Dia., 25.5mm Width, Smooth (Part No.89132)

Serpentine Assy. Idler/Tensioner Pulley; Steel, 70mm Dia., 25.5mm Width, Smooth

from

$49.49
Dayco idler/tensioner pulleys are built with smoother surfaces and tighter dimensional tolerances, which translates to less vibration and longer belt life. In addition to stamped, forged steel and powdered metal pulleys, Dayco also designs ultra-strong plastic pulleys with specially formulated glass-filled polymers that resist wear & tear. Premium lubricated ball bearings and double high temperature seals ensure peak bearing performance, the most critical element of a pulley’s service life.

Product Features:
  • Designed for the majority of automotive vehicle applications on the road today.
  • High-quality materials help resist wear and improve belt life
  • Features premium lubricated bearings to extend service life
  • Meets or exceeds OE quality
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Litens – O.E Quality Idler/Tensioner Pulley: Direct Fit, Steel, 76 mm Diameter (Part No.900022A)

O.E Quality Idler/Tensioner Pulley: Direct Fit, Steel, 76 mm Diameter

from

$32.49
This Litens pulley is manufactured by one of the largest original equipment pulley suppliers to ensure proper fit and performance. This pulley is produced for serpentine belt routing applications and conforms to original equipment material, tolerances, and specifications. This replacement part is made in the U.S.A. to the O.E. specified design and meets all performance and durability requirements. Heavy duty steel construction. Litens is the world’s largest supplier of original equipment (O.E.) power transmission products. At Litens, we design systems that are more efficient, resulting in tangible fuel economy/emissions benefits. Litens holds over 2000 patents and continues to respond to the ever-changing automotive industry by investing heavily in new technology, facilities, and people. 90% of our line is made of products coming from the OE manufacturer, which makes the Litens Tensioning Products portfolio the purest OE tensioning line in the North American aftermarket._

Product Features:
  • Manufactured by one of the largest original equipment part suppliers in the world to ensure proper form, fit, and performance
  • Heavy Duty Steel Pulley with close tolerance ball bearing pocket and Electro-deposited coating for superior corrosion resistance
  • Installation instructions included.
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Dorman – Idler Pulley (Pulley Only) (Part No.419-632)

Idler Pulley (Pulley Only)

from

$44.49
This accessory drive belt tensioner pulley is designed to match the fit and function of the original pulley on specified applications. Made of quality materials, it is engineered for reliable performance and durability.

Product Features:
  • Direct replacement – this accessory drive belt tensioner pulley is designed to match the fit and function of the original pulley on specified applications
  • Restores functionality – reliable replacement for an original pulley that has failed due to vibration or corrosion
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
See More

Dayco – Serpentine Idler/Tensioner Pulley; Steel, 76mm Dia., 31mm Width, Smooth (Part No.89007)

Serpentine Idler/Tensioner Pulley; Steel, 76mm Dia., 31mm Width, Smooth

from

$29.99
Dayco idler/tensioner pulleys are built with smoother surfaces and tighter dimensional tolerances, which translates to less vibration and longer belt life. In addition to stamped, forged steel and powdered metal pulleys, Dayco also designs ultra-strong pl

Product Features:
  • Designed for the majority of automotive vehicle applications on the road today
  • High-quality materials help resist wear and improve belt life
  • Features premium lubricated bearings to extend service life
  • Meets or exceeds OE quality
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Gates – DriveAlign½ Belt Drive Idler/Tensioner Pulley (Part No.38006)

DriveAlign½ Belt Drive Idler/Tensioner Pulley

from

$32.99
Product Features:
  • Steel and thermoplastic construction designed to tight manufacturing tolerances for high durability and quality performance
  • Built to last with a superior resistance to dirt, salt, chemicals and other under-hood contaminants
  • OE-quality fit for virtually every domestic or import vehicle on the road today
  • Bearings meet or exceed OE standards with application-specific speed and load requirements, to withstand high under hood temperatures
  • Premium bearings eliminate bearing noise
  • Mounting hardware included for some popular applications
  • Reliable operation under severe conditions
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Litens – O.E Quality Idler/Tensioner Pulley: Direct Fit, Steel, 70 mm Diameter (Part No.900159A)

O.E Quality Idler/Tensioner Pulley: Direct Fit, Steel, 70 mm Diameter

from

$21.49
This pulley is manufactured by Litens Automotive the inventor of the first automatic belt tensioner in 1979 and today the world’s largest supplier of Original Equipment (O.E.) belt tensioning and routing products. This pulley is produced for serpentine belt routing applications and as the pulley component on automatic tensioner applications. This pulley conforms to original equipment material, tolerances, and specifications. The part is made in Canada using the O.E. specified design and meets all performance and durability requirements. Heavy duty steel construction for long life and trouble-free performance. Litens is the world’s largest supplier of original equipment (O.E.) power transmission products. At Litens, we design systems that are more efficient, resulting in tangible fuel economy/emissions benefits. Litens holds over 2000 patents and continues to respond to the ever-changing automotive industry by investing heavily in new technology, facilities, and people. 90% of our line is made of products coming from the OE manufacturer, which makes the Litens Tensioning Products portfolio the purest OE tensioning line in the North American aftermarket._

Product Features:
  • Manufactured by Litens, the largest original equipment tensioner and pulley supplier in the world, to ensure proper form, fit, and performance
  • Heavy Duty Steel Pulley with close tolerance ball bearing pocket and Electro-deposited coating for superior corrosion resistance
  • Installation instructions included.
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Pulleys Brands You Can Trust For Your Cadillac STS

4 trusted brands of Pulleys line our shelves, ready to help keep your Cadillac STS running smooth. Below are some of the most popular brands and their top Pulleys offerings:

Most Purchased Cadillac STS Pulleys from Dayco

When you buy the most frequently purchased Dayco brand Pulleys, you can be confident it will be the right part for your Cadillac STS. Here are the Dayco Pulleys Advanced Auto customers buy the most:
Serpentine Assy. Idler/Tensioner Pulley; Steel, 70mm Dia., 25.5mm Width, Smooth
from $49.49
This product is not rated
Serpentine Assy. Idler/Tensioner Pulley; Steel, 70mm Dia., 25.5mm Width, Smooth
Idler Pulleys

FAQs for Cadillac STS Pulleys

What are the most purchased Pulleys for the Cadillac STS?

Out of 9 Pulleys for the Cadillac STS, the most popular in our inventory are:
Serpentine Assy. Idler/Tensioner Pulley; Steel, 70mm Dia., 25.5mm Width, Smooth
from $49.49
This product is not rated
Serpentine Assy. Idler/Tensioner Pulley; Steel, 70mm Dia., 25.5mm Width, Smooth
Idler Pulleys
O.E Quality Idler/Tensioner Pulley: Direct Fit, Steel, 70 mm Diameter
from $21.49
This product is not rated
O.E Quality Idler/Tensioner Pulley: Direct Fit, Steel, 70 mm Diameter
Belt Tensioner Pulleys

What are the top-rated Cadillac STS Pulleys?

Top-rated Pulleys for your Cadillac STS based on customer reviews/ratings are:
Idler Pulley (Pulley only)
from $12.49
(3)
Idler Pulley (Pulley only)
“I originally had a squeak that I though was the water pump, but a new sound emerged, replace 1 of the idler pulleys and still a small squeak. However,”