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This Wehrli billet aluminum oil fill cap in clear anodize replaces the factory plastic cap on many GM engines and cleans up the engine bay. CNC machined in the USA, it includes an o-ring seal and machined cam-lock engagement for a secure fit. It fits 2001–2025 Chevrolet Silverado and GMC Sierra 2500/3500 6.6L Duramax models and is also listed compatible with many GM LS and other Duramax engines.
Wehrli 2001+ GM Duramax LB7/LLY/LBZ/LMM/LML/L5P Billet Oil Fill Cap - Clear Anodized
