Is this just a cover, or a complete replacement cap?

This is a complete replacement cap, not just a cover. It replaces the entire factory plastic oil fill cap assembly.

What material is this oil fill cap made from?

This oil fill cap is CNC machined from billet aluminum. The aluminum construction provides a clean look under the hood.

Does this oil fill cap come with a seal?

Yes, this oil fill cap includes an o-ring seal. The seal helps to prevent oil leaks.

Wehrli 2001+ GM Duramax LB7/LLY/LBZ/LMM/LML/L5P Billet Oil Fill Cap - Clear Anodized

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Wehrli

Wehrli 2001+ GM Duramax LB7/LLY/LBZ/LMM/LML/L5P Billet Oil Fill Cap - Clear Anodized

Name: Wehrli 2001+ GM Duramax LB7/LLY/LBZ/LMM/LML/L5P Billet Oil Fill Cap - Clear Anodized
Brand: Wehrli
Price: 54.27 USD
Availability: InStock

$54.27

Billet aluminum oil fill cap replaces the factory plastic part on your Duramax or LS engine.

Key Features

Billet aluminum — looks better than the stock plastic cap
Clear anodized finish — resists corrosion
Direct OEM replacement — fits right
Includes o-ring seal — prevents leaks
Machined cam lock engagement — secures cap tightly

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

Will this fit your vehicle?

Compatible with 389 vehicles

Need Help?

631-982-0042

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Since 1957

Family-owned

Product Details

Wehrli Custom Fab Cap, Billet, Oil Fill Tube, 2001-2025 GM Duramax, Clear Anod

Clean up the engine bay of your 2001-2025 Chevy Silverado or GMC Sierra 2500 / 3500 6.6L truck equipped with the 6.6L Duramax with this Billet Aluminum Clear Anodized Oil Fill Cap from WCFab. This is a complete cap, not a cover. Direct OEM replacement for the factory plastic part. Includes o-ring seal and machined cam lock engagement. CNC machined in the USA. - - Direct replacement for the following GM OEM model numbers: 97350955, 97216410, 12573341, 12677347 - - Also compatible with 2.8L LWN Duramax and the following GM LS gasoline engines: - - LSX - 4.8L V8 - LR4, LY2, L20 - 5.3L V8 - LC9, LH6, LH8, LH9, LMF, LM4, LM7, LY5, LMG, LS4, L33, L59 - 5.7L V8 - LS1, LS6 - 6.0L V8 - LQ4, LQ9, LS2, L76, L98, L77, LY6, L96, LFA, LZ1 - 6.2L V8 - LS3, LS9, LSA, L92, L99 - 7.0L V8 - LS7