2012 Western Star 6900XD Pulleys

Keep Your 2012 Western Star 6900XD in Top Shape with a Quality Pulley

When it comes to maintaining or upgrading your 2012 Western Star 6900XD, choosing high-quality parts is crucial for ensuring your vehicle stays in top shape, whether you’re tackling a repair or enhancing performance. At Advance Auto Parts, we know how important it is to find the right Pulley for your 6900XD. We currently carry a top Pulley in stock that is built to last. Whether you’re replacing a damaged Pulley or looking to upgrade, our selection for the 2012 Western Star 6900XD ensures you’ll find exactly what you need to keep your vehicle looking and performing its best.

Explore Related Parts

And while you’re here, don’t forget to check out related part categories like Belt Tensioners and Serpentine and V Belts to complete your upgrade or repair project. At Advance Auto Parts, we’re proud to offer the parts and expertise to keep your 2012 Western Star 6900XD running smoothly and looking great.

Essential 2012 Western Star 6900XD Pulleys

Litens – Idler Pulley: Direct Fit, Steel, 74mm Diameter, w/ Hardware (Part No.900566A)

Idler Pulley: Direct Fit, Steel, 74mm Diameter, w/ Hardware

from

$90.99
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 is made of high strength steel for improved life and durability. This pulley conforms to original equipment material, tolerances, and specifications. This part fits Heavy Duty truck applications including 2000-2008 Kenworth with C13/C15. Comes pre-assembled with a new installation bolt and dust shield. 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.
See More

Litens – Idler/Tensioner Pulley: Direct Fit, Steel, 75mm Diameter (Part No.900041A)

Idler/Tensioner Pulley: Direct Fit, Steel, 75mm Diameter

from

$57.99
This pulley is supplied by Litens Automotive – 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 meets all performance and durability requirements. Fits Heavy Duty truck applications including Freightliner, Kenworth, Peterbilt, Sterling, and Western Star. 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.
See More

Gates – DriveAlign Belt Drive Idler/Tensioner Pulley (Part No.36341)

DriveAlign Belt Drive Idler/Tensioner Pulley

from

$105.99
Gates is a leading manufacturer of Original Equipment (OE) idler pulleys. Gates DriveAlign(R) Idler Pulleys meet or exceed OE specifications. High quality, high strength bearings run cooler and last longer than original bearings. DriveAlign Idler Pulleys are built to last by resisting dirt, salt, and other under-hood contaminants. Designed for use on automobiles and light trucks as locked center tensioning, automatic belt tensioning and idler pulleys.

Product Features:
  • Steel and thermoplastic construction designed to tight manufacturing tolerances for durability and quality performance.
  • Built to last with superior resistance to dirt, salt, chemicals, and other engine compartment 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
  • High-end bearings eliminate bearing noise
  • Mounting hardware included for some common applications
  • Reliable operation in severe conditions
See More

Litens – Idler/Tensioner Pulley: Direct Fit, Steel, 74mm Diameter (Part No.900120A)

Idler/Tensioner Pulley: Direct Fit, Steel, 74mm Diameter

from

$49.99
This pulley is designed and engineered 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 using the O.E. specified design and meets all performance and durability requirements. Heavy duty steel construction for long life and trouble-free performance. Designed for HD truck applications. 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.
  • Forged Heavy Duty Steel Pulley designed to displace bearing heat. Precision machined face for smooth running surface. Tandem 6303 Ball Bearings for extended life.
  • Installation instructions included.
See More

Litens – Idler Pulley: Direct Fit, Steel, 70mm Diameter (Part No.900657A)

Idler Pulley: Direct Fit, Steel, 70mm Diameter

from

$61.99
This Litens Idler Pulley is manufactured by one of the world’s largest original equipment pulley suppliers to ensure proper fit and performance. The part is made using the O.E. specified design and meets all performance and durability requirements. Heavy duty steel construction for long life and trouble-free performance. Designed for HD truck applications. 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:
  • Designed and engineered by the Original Equipment supplier of this application.
  • Forged Heavy Duty Steel Pulley designed to displace bearing heat. Precision machined face for smooth running surface.
  • Lower Idler Pulley Position
  • Pulley Specs: 70mm (OD) x 10mm (ID -Inner Bore) x 18mm (ID – Inner Bore) x 34mm (Width).
  • Smooth/Backside – Steel Pulley.
See More

Most Popular Idler Pulley for 2012 Western Star 6900XDs

Enhance your 2012 Western Star 6900XD with this popular Idler Pulley we have in stock, for $61.99.

Litens – Idler Pulley: Direct Fit, Steel, 70mm Diameter (Part No.900657A)

Idler Pulley: Direct Fit, Steel, 70mm Diameter

from

$61.99
This Litens Idler Pulley is manufactured by one of the world’s largest original equipment pulley suppliers to ensure proper fit and performance. The part is made using the O.E. specified design and meets all performance and durability requirements. Heavy duty steel construction for long life and trouble-free performance. Designed for HD truck applications. 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:
  • Designed and engineered by the Original Equipment supplier of this application.
  • Forged Heavy Duty Steel Pulley designed to displace bearing heat. Precision machined face for smooth running surface.
  • Lower Idler Pulley Position
  • Pulley Specs: 70mm (OD) x 10mm (ID -Inner Bore) x 18mm (ID – Inner Bore) x 34mm (Width).
  • Smooth/Backside – Steel Pulley.
See More

FAQs for 2012 Western Star 6900XD Pulleys

What’s the price range for 2012 Western Star 6900XD Pulleys?

We currently have just one Pulleys for the 2012 Western Star 6900XD in stock: Idler Pulley: Direct Fit, Steel, 70mm Diameter and it costs $61.99.

Does Advance Auto Parts sell Pulleys for other Western Star 6900XD model years?

Yes, we carry Pulleys for 4 model years of Western Star 6900XDs between 2005 and 2016. The following model years are the most popular for Pulley purchases: 2016, 2015, 2007, 2006, and 2005.

Does Advance Auto Parts sell Pulleys for any other 2012 Western Star models?

Yes. We stock Pulleys for 4 other popular 2012 Western Star models. Some of the most popular are 2012 4800 Pulleys, 2012 4900SA Pulleys, 2012 4900EX Pulleys, 2012 4900FA Pulleys, and 2012 4700 Pulleys.

What types of Pulleys do you sell for my 2012 Western Star 6900XD?

We currently have just 1 Pulley in stock for a 2012 Western Star 6900XD, and as of 11/2/25, it is an Idler Pulley.

Can I get help with 2012 Western Star 6900XD Pulley orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Western Star Pulleys and more.

What is your return policy for Western Star 6900XD Pulleys?

Advance Auto Parts keeps returns simple. For new Western Star 6900XD Pulleys and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.