Free shipping on all orders - Details
Mr. Gasket

Mr. Gasket Ultra-Seal Rear Main Cover Gasket

Fits 1997-2019 GM LS engines

Part # 4799G Be the first to write a review
In Stock
Free Shipping
Holley Days Price
Suggested Retail
Add to Wish List
Create a new list
Manufactured from synthetic high tensile strength gasket material for excellent sealing and durability. Precision die cut for excellent sealing and durability.


  • For OE replacement use
  • High performance street drag race oval track use

About Mr. Gasket

Using his own '57 Chevy as a rolling testbed, drag racer Joe Hrudka launched the most famous gasket company in the world more than half a century ago. Mr. Gasket is the go-to gasket source for racers with gaskets and fasteners that seal perfectly every time.

Brand Mr. Gasket
Emission Code5
EngineGM Small Block Gen III/IV (LS Based)
MaterialUltra-seal III
Product TypeRear Main Cover gasket
WarrantyLimited 90 Day Warranty
Part Number4799G

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

Limited 90 Day Warranty: See Details

    Your Review

    *Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages.

    Some parts are not legal for use in California or other states with similar regulations.

     X  Holleydays 2021
     X  Holleydays 2021