2012 Western Star 4900FA Idler Pulleys

Your 2012 Western Star 4900FA might be the best vehicle you’ve ever owned. Or you may just be struggling to keep it highway-approved. No matter the situation, Advance Auto Parts has the Idler Pulleys you desperately need.

We currently carry 2 Idler Pulleys to choose from for your 2012 Western Star 4900FA, and our inventory prices range from as little as $56.99 up to $57.99.

On top of low prices, Advance Auto Parts offers 2 different trusted brands of Idler Pulleys for the 2012 Western Star 4900FA. We only sell parts from trusted brands like Dayco so that you can find quality parts you can count on.

Have parts delivered straight to your home, or find the nearest Advance Auto Parts store to check out our Idler Pulleys stock in-person!

Idler Pulleys for Your 2012 Western Star 4900FA

Dayco No Slack Gold Label – Serpentine Idler/Tensioner Pulley; Steel, 86.5mm Dia., 39.4mm Width, Smooth (Part No.89106)

Serpentine Idler/Tensioner Pulley; Steel, 86.5mm Dia., 39.4mm Width, Smooth

from

$57.99
Designed to replace idler and tensioner pulleys for serpentine drives in heavy-duty diesel engine applications, Dayco HD idler/tensioner pulleys are machined from high-strength steel or powdered metal material to provide excellent wear resistance under ha

Product Features:
  • Engineered for the demanding drive systems of today’s class 4-8 heavy-duty commercial trucks
  • Premium OE technology to ensure peak performance under extreme conditions
  • Utilizes 3D dimensional computer aided design (CAD) and finite element analysis (FEA) for optimal design and maximum structural integrity
  • Meets or exceeds OE quality
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Litens – O.E Quality Idler/Tensioner Pulley: Direct Fit, Steel, 70 mm Diameter (Part No.900657A)

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

from

$56.99
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.
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