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LT Gen V (5) L83 L86 Truck to LT4 Supercharger Idler Pulley Adapter Bracket SC

In stock
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Idler Pulley Bracket

Used on Gen 5, LT series V8 trucks to allow LT4 supercharger belt routing

  • Uses factory truck, 6 rib crank pulley to drive the supercharger
  • Made in Wichita, Kansas from aerospace grade, USA produced, billet aluminum
  • Includes: 3 idler pulleys, idler bracket, and mounting hardware
  • Uses a 98" 6 rib belt PN 980K6

Must be used in conjunction with an aftermarket supercharger pulley that is designed for truck spacing Uses factory truck brackets and accessories Uses 98.0" Serpentine Belt

More Information

Bullet Point 1 Supercharger idler pulley adapter bracket
Manufacturer Part Number 551790
UPC 657814751040
Weight 5.320000
ICT Manufacturer ICT Billet
United States United States
Length Inches 17
Width Inches 7
Height Inches 2

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.