Cometic GM LLY/LBZ Duramax .051in MLS Top End Gasket Kit
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This item may be on backorder. Please contact us to confirm supplier availability and estimated lead time before ordering.
Regular price
$662.75
Verified Fitment & Application Support
This product is selected for proper fitment and compatibility with the listed engine application. Our team is available to assist with fitment questions, installation considerations, and supporting components to ensure a smooth install and reliable performance.
Got Questions? Feel free to email us or call us at (503) 235-1947
Compliance & Restrictions
California Proposition 65 (Prop 65)
WARNING: This product can expose you to chemicals which is known to the State of California to cause cancer and/or reproductive harm.
For more information, visit www.P65Warnings.ca.gov.
CARB / California Emissions Compliance
This item may be restricted in California and other regions with emissions regulations. If applicable, it is intended for
competition/off-road use only unless otherwise stated. It is the customer’s responsibility to confirm local compliance before purchase.
Orders shipping to restricted areas may be canceled.
Seal it properly with the Cometic Top End Gasket Kit (cgsPRO3009T-4100-051) - built for GM LLY/LBZ Duramax.
- Fits GM LLY/LBZ Duramax
- .051in compressed thickness - changes deck clearance and compression ratio, so match it to your build
- 4.100in bore
- Multi-Layer Steel - embossed stainless layers with Viton coating, no sealant required
- Complete top end kit - head gaskets plus the associated seals
- Genuine Cometic Gasket, made to order in the USA
- Cometic part number PRO3009T-4100-051
Perfect for a rebuild done with the correct gaskets rather than a generic set.
Shipping Height: 1.9
Shipping Length: 23.8
Shipping Width: 14.2