Availability
Mr. Gasket Ultra-Seal Exhaust Gaskets
178 Customer Reviews
Additional features and benefits:
*
Additional features and benefits:
* Expanded steel core provides stability and maximum torque retention to eliminate gasket failure
* Graphite facing provides excellent heat resistance and thermal conductivity to transfer heat away from the cylinder head
* High-recovery material allows header or manifold flange to stay sealed if flange loses clamp-load
* Can be trimmed for modified port applications
* Designed for OE replacement, high performance street, drag race, road racing, and oval track use
Showing In Stock Items. Show All 30 Items.
Exhaust Gaskets, Header, Ultra-Seal, Steel Core Laminate, Square Port, Chevy, Small Block, Pair
Part Number: MRG-5901
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Exhaust Gaskets, Header, Ultra-Seal, Stock Port, Ford, Small Block, Pair
Part Number: MRG-5930
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Exhaust Gaskets, Header, Ultra-Seal, Round Port, Chevy, Big Block, Pair
Part Number: MRG-5912
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Exhaust Gaskets, Header, Ultra-Seal, Round Port, Chevy, Small Block, Pair
Part Number: MRG-5907
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Exhaust Gaskets, Header, Ultra-Seal, Steel Core Laminate, D-Port, Pontiac, Pair
Part Number: MRG-5921
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Exhaust Gaskets, Header, Ultra-Seal, Stock Port, Mopar, Big Block, Pair
Part Number: MRG-5936
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Exhaust Gaskets, Manifold, Stock Port, Mopar, Small Block, Pair
Part Number: MRG-5935
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Exhaust Manifold Gaskets, Ultra-Seal, Graphite Facing, D-port, Chrysler, Mopar Hemi Gen III, Pair
Part Number: MRG-7595
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Exhaust Gaskets, Header, Ultra-Seal, Square Port, Chevy, Big Block, Pair
Part Number: MRG-5910
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Exhaust Gaskets, Header, Copper, Oval Port, Ford, 5.0/5.8L, Pair
Part Number: MRG-7161
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Exhaust Gaskets, Header, Ultra-Seal, Steel Core Laminate, Oval Port, Chevy, Small Block, Pair
Part Number: MRG-5917
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Exhaust Gaskets, Header, Ultra-Seal, Rectangular Port, Oldsmobile, V8, Set
Part Number: MRG-5945
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Exhaust Gaskets, Header, Ultra-Seal, Steel Core Laminate, Round Port, Chevy, Big Block, Pair
Part Number: MRG-5914
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Exhaust Gaskets, Header, Ultra-Seal, Steel Core Laminate, Oval Port, Ford, 221-302/351W, Pair
Part Number: MRG-5928
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Exhaust Gaskets, Header, Ultra-Seal, Steel Core Laminate, Stock Port, Mopar, Small Block LA, Pair
Part Number: MRG-5938
Not Yet Reviewed
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Exhaust Gaskets, Header, Ultra-Seal, Round Port, Chevy, Big Block, Pair
Part Number: MRG-5911
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Exhaust Gaskets, Header, Ultra-Seal, Steel Core Laminate, Round Port, Adapter Plate, Chevy, Small Block, Pair
Part Number: MRG-5904
Not Yet Reviewed
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Exhaust Gaskets, Header, Ultra-Seal, D-Port, Chevy, Small Block, Pair
Part Number: MRG-5965
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Exhaust Gaskets, Header, Ultra-Seal, Steel Core Laminate, Open Center Port, Pontiac, V8, Pair
Part Number: MRG-5920
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Exhaust Gaskets, Header, Ultra-Seal, Steel Core Laminate, Square Port, Chevy, Small Block, Pair
Part Number: MRG-5900
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Exhaust Gaskets, Header, Ultra-Seal, Dog Leg Port, AMC, V8, Pair
Part Number: MRG-5950
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Exhaust Gaskets, Header, Ultra-Seal, D-Port, Chevy, Small Block, Pair
Part Number: MRG-5903
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Exhaust Gaskets, Header, Ultra-Seal, Steel Core Laminate, Stock Port, Chevy, Small Block, Hooker Plate, Pair
Part Number: MRG-5908
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Exhaust Gaskets, Header, Ultra-Seal, Round Port, Chevy, Small Block, Pair
Part Number: MRG-5902
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Exhaust Gaskets, Header, Ultra-Seal, Steel Core Laminate, Square Port, Chevy, Big Block, Pair
Part Number: MRG-5913
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
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