Gates 90K-38505HD | Serpentine Belt Drive Component Kit

Part Number
FleetRunner Heavy-Duty Serpentine Belt Drive Component Kit

Fits: 03-05 Kenworth W900, 04-07 Peterbilt 378, 06-07 Peterbilt 357, 07-09 Peterbilt 320, 08 Peterbilt 365, 09 Autocar LLC. Xpeditor, 09 Autocar LLC. Xpeditor WX, 09 Autocar LLC. Xpeditor WXLL

Special Price $98.99 Regular Price $109.99
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Gates Complete Serpentine Kits make it easy to service the entire serpentine belt drive system. Save money and prevent premature vehicle breakdowns by making the choice to fix your vehicle right the first time. Neglecting to replace the tensioner and pulley(s), at the same time you replace the belt, can not only shorten the life of the belt as well as other front end accessory drive components, but can leave you or your customer stranded on the side of the road.

Gates understands the importance of getting your vehicle up and running with as little hassle as possible. Our Complete Serpentine Kits provide customers a time-saving, convenient way to purchase all the premium parts needed, in one pre-packaged kit, to completely restore their serpentine belt drive system. Plus, they're backed by our lifetime parts and labor warranty when installed by a certified shop.

Gates - Driven by Possibility

BRAND: Gates


  • FleetRunner® Heavy-Duty Serpentine Belt Drive Component Kit
  • 2009-07 Peterbilt, 320, Cummins ISM Diesel, Accessory Belt Drive Kit - A.C.
  • FleetRunner Heavy-Duty Serpentine Belt Drive Component Kit
  • Serpentine Drive Component Kit


Belt 1 Outside Circumference (in)54.521
Belt 1 Outside Circumference (mm)1385
Belt 1 Part NumberK060539HD
Belt Top Width.807
Belt Top Width20
ContentsBelt, Tensioner, Idler
Idler Pulley 1 Part Number36225
Tensioner Assembly Part Number38505

{K060539HD, 38505, 36225}


  • NAPA Belts/Hose: 90K-38505HD
  • NAPA: DBK060539HDA
  • CARQUEST: 90K-38505HD


  • 2003-2005 Kenworth W900 - Position: Air Conditioning
  • 2008-2008 Peterbilt 365 - Position: Air Conditioning
  • 2004-2007 Peterbilt 378 - Position: Air Conditioning
  • 2007-2009 Peterbilt 320 - Position: Air Conditioning
  • 2006-2007 Peterbilt 357 - Position: Air Conditioning
  • 2009-2009 Autocar LLC. Xpeditor WX - Position: Air Conditioning
  • 2009-2009 Autocar LLC. Xpeditor - Position: Air Conditioning
  • 2009-2009 Autocar LLC. Xpeditor WXLL - Position: Air Conditioning
Customer Questions
Can a serpentine belt cause smoke?
Yes, a serpentine belt can cause smoke. A serpentine belt is an essential component of a vehicle's engine system. It drives various accessories such as the alternator, power steering pump, water pump, and air conditioning compressor. If the serpentine belt becomes worn, damaged, or misaligned, it can cause friction and generate smoke.
Why is my serpentine belt squealing?
The serpentine belt can squeal due to various reasons, including tension issues, worn-out belt, or a problem with the belt's pulleys.
Is my serpentine belt too tight?
If your serpentine belt is causing issues like excessive noise or accelerated wear on the pulleys, it may indicate that the belt is too tight.
Why did my serpentine belt come off?
Serpentine belts can come off due to factors such as belt wear, improper tension, misaligned pulleys, or a faulty tensioner.
What types of automotive products does Gates offer?
Gates offers a wide range of automotive products, including belts, hoses, tensioners, and more.
I'm looking for a replacement belt for my vehicle. Can you help me understand the different options available from Gates and recommend the best one for my specific make and model?
Yes, Gates offers a range of replacement belts for various applications. To find the best one for your specific make and model, it is recommended to consult the Gates website or reach out to their customer support.
Are there any specific maintenance for Gates products?
Yes, there are specific maintenance and installation guidelines to follow when using Gates products to ensure optimal performance and longevity.
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