These lower pulleys are compatible with ATI part numbers 918854 and 918856 for the LSA and LT4 (Camaro/CTS-V only) damper. They are machined from 6061 aluminum and anodized for protection.
The pulleys are available in three sizes:
- 230mm (9.06") [LSA 16%/LT4 13%]
- 240mm (9.45") [LSA 21%/LT4 18%] IDLER RELO BRACKET REQUIRED FOR LSA
- 250mm (9.84") [LSA 26%/LT4 23%] IDLER RELO BRACKET REQUIRED FOR LSA
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