Is this just a cover, or a complete replacement for the factory cap?

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

What material is this cap made from?

This oil fill cap is CNC machined from billet aluminum. It's also anodized black for a clean look.

What GM part numbers does this replace?

This Wehrli cap is a direct replacement for GM OEM part numbers 97350955, 97216410, 12573341, and 12677347. It's a solid option if your factory cap is damaged or missing.

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

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Wehrli

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

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

$54.27

Dress up your Duramax or LS engine bay with this black anodized billet oil fill cap from Wehrli.

Key Features

Billet aluminum — stronger than the factory plastic cap
Black anodized finish — looks good under the hood
Direct OEM replacement — fits right with no modification
Includes o-ring seal — prevents leaks
CNC machined in the USA — well-made

⚠️ 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

Fast Shipping

Nationwide delivery

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Since 1957

Family-owned

Product Details

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