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LS Truck Manual Belt Tensioner w/ Pulley LSX 4.8L 5.3L 6.0L Silverado Billet

In stock
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Billet Manual Belt Tensioner

Replaces stock tensioner, allows you to add more tension to the belt than the stock tensioner, & allows for greater range of belt length fitment.

  • Has a 1/2" drive hole in the rear of the front bracket to tighten belt.
  • OEM length belt can be used
  • Compatible with: LS series Truck/SUV water pumps (any year)
  • Compatible with: Truck/SUV crank pulley (ICT# BAL300)
  • Made in Wichita, Kansas from aerospace grade, USA produced billet aluminum
  • Includes: belt tensioner w/ pulley and mounting hardware

*** This tensioner needs to match the water pump used in your swap, not the spacing of your crank pulley***

- Example: If using a LS1 water pump with ICT Spacers 551690-71 you will need a tensioner made for the LS1 water pump

More Information

Bullet Point 1 Keep your belt from throwing during deceleration with this manual belt tensioner
Bullet Point 2 Easily adjust the tensioner with a 1/2" drive ratchet
Bullet Point 3 Compatible with LS series GM truck engines
Bullet Point 4 Made in Wichita, Kansas from aerospace grade, USA produced, billet aluminum
Bullet Point 5 Includes complete belt tensioner, pulley, and mounting hardware
Manufacturer Part Number 551617X-3
UPC 797822587610
Weight 1.768000
ICT Manufacturer ICT Billet
United States United States
Length Inches 4
Width Inches 6
Height Inches 2
Download .PDF for Vehicle No

WARNING - This product can expose you to chemicals including lead, which is known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to


ALUMINUM: Most of the aluminum alloys used today contain some level of lead, usually less than .1%. Lead is known to the state of California to cause cancer and reproductive harm. Most aluminum alloys are physiologically inert in their solid form, and the lead is contained within, however user-generated dust and/or fumes may pose a hazard if inhaled or ingested. Heating beyond a certain temperature may also provide avenues for exposure.


STEEL (steel bolts):  Steel is an iron alloy with several metals including Nickel and Chromium. Both Nickel and Chromium are known to the State of California to cause cancer and reproductive harm, respectfully. This warning applies to stainless steels as well.