COMP Cams · New
COMP Cams Belt Tensioner W/Idler GM LS
MPN 54021 · Store SKU cca54021
Supplier stock checked 11/7/2026, 9:32:22 PM UTC. Adding a part does not reserve it.
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Product details
The GM LS engines with the factory spring loaded belt tensioners become prone to throwing belts when used in performance Applications and with aftermarket balancers. These bolt-on Billet LS Belt Tensioners are a fully adjustable solution for controlling potentially damaging resonance and maintaining desired belt tension. This billet belt tensioning assembly for GM LS1/2/3/6/7 helps stop the throwing of serpentine belts by absorbing potentially damaging resonance. Billet Belt Tensioner for GM LS1, LS2, LS3, LS6 and LS7
Manufacturer fitment & guides
- Chevrolet: Camaro 10 - 15 6.2 L Engine, Chevrolet: Camaro 14 - 15 7 L Engine, Pontiac: G8 09 - 09 6.2 L Engine, Avanti: II 01 - 04 5.7 L Engine, Chevrolet: Corvette 08 - 13 6.2 L Engine, Chevrolet: SS 14 - 17 6.2 L Engine, Chevrolet: Corvette 05 - 07 6 L Engine, Chevrolet: Corvette 06 - 13 7 L Engine
- Manufacturer-supplied application summary from Turn14; this may not be an exhaustive fitment list.
Part-specific notes
- California Proposition 65: Y
