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Katech KAT-A4425-BLK - Billet Belt Tensioner (Black)

for Corvette, CTS-V, F-body, and GTO (Black)

• Anodized Tensioner with Laser Etched Logo
• Now Includes the Pulley
2010-2012 Camaro requires Gates belt part number K060827. See related products.
2013-2015 Camaro requires Gates belt part number K060790. See related products.
Availability: Call to check stock.
Shipping: Free Shipping* On Orders Over $99!
Pricing: $146.99
Free U.S. Continental Shipping


Katech Inc. has been involved with the C5-R race program since 1997. One of the first things that was noticed was there seemed to be a bad spot in the rpm range where the serpentine accessory belt would want to jump off of the pulley. This is the origin of our solid adjustable belt tensioner. After installing this tensioner on the race engine, the belt problem disappeared. Even though this problem was found on the race engines, it is also the same case with the standard LSx engines.

These belt tensioners are a must for anyone doing any sort of performance driving with a Gen 3 / 4 powered car or truck. Without it, the belt can be thrown by the stock tensioner. This is not something you want to happen when you are going down the strip or racing around the road course. *Not recommend for use on supercharged engines unless the supercharger has a dedicated drive.

California Proposition 65

California Prop 65WARNING: Cancer & Reproductive Harm -


  • KAT-A4425-BLK
  • KAT-A4425-BLK
  • Katech
  • Call to check stock.
  • New

Shipping Information

  • Item Requires Shipping
  • 3.0 lbs.
  • W12.0000” x H12.0000” x L12.0000”
  • Free U.S. Continental Shipping
  • Free Shipping* On Orders Over $99!

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