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Mr. Gasket Ultra-Seal Exhaust Gaskets 5921 Gaskets, Header, Ultra-Seal, Steel Core Laminate, D-Port, Pontiac, Pair

Mr. Gasket Ultra-Seal Exhaust Gaskets 5921 Gaskets, Header, Ultra-Seal, Steel Core Laminate, D-Port, Pontiac, Pair

A$120.91
IN STOCK! Est Ship 4-7 days. This item is IN STOCK at one of our warehouses or distribution centres, the ETA is the approximate time required to prepare your order for dispatch.
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Description

Mr. Gasket Ultra-Seal exhaust gaskets are designed and constructed to improve the sealing of exhaust header flanges. Unlike standard exhaust gasket material, Ultra-Seal gaskets incorporate a graphite-impregnated facing and a steel-expanded metal core that reinforces and increases their tensile strength. This allows the gaskets to conform to warped flanges, giving them better sealing capabilities without deteriorating or cracking under the excessive heat and pressure that's common in exhaust systems. Ultra-Seal gaskets are available for a wide range of port styles and sizes.

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

Part Type

Pontiac Exhaust Gaskets

Data: v4.2 - Upd: 2026-10-14 09:40:22

Specifications

Product Attributes - Brand
Mr. Gasket
Product Attributes - Manufacturer's Part Number
5921
Product Attributes - Part Type
Header and Exhaust Manifold Gaskets
Product Attributes - Product Line
Mr. Gasket Ultra-Seal Exhaust Gaskets
Product Attributes - UPC
084041059210
Product Attributes - Port Style
D-port
Product Attributes - Gasket Material
Steel core laminate
Product Attributes - Port Height (in.)
2.000
Product Attributes - Port Width (in.)
1.550
Product Attributes - Quantity
Sold as a pair.

Reference Information

Brand Name/s Mr. Gasket
StreetFX SKU mrg5921
SFX Item ID 4982588
Supplier Item Code 4982588
Manufacturer SKU 5921
Manufacturer UPC 84041059210

Compatibility

Application Data
  • MakePONTIAC
    Beginning Year1965
    Ending Year1966
    Engine TypeV8
    Engine FamilyPontiac V8
    Engine Size6.4L/389
  • MakePONTIAC
    Beginning Year1965
    Ending Year1966
    Engine TypeV8
    Engine FamilyPontiac V8
    Engine Size6.9L/421
  • MakePONTIAC
    Beginning Year1965
    Ending Year1967
    Engine TypeV8
    Engine FamilyPontiac V8
    Engine Size5.3L/326
  • MakePONTIAC
    Beginning Year1967
    Ending Year1969
    Engine TypeV8
    Engine FamilyPontiac V8
    Engine Size7.0L/428
  • MakePONTIAC
    Beginning Year1967
    Ending Year1979
    Engine TypeV8
    Engine FamilyPontiac V8
    Engine Size6.6L/400
  • MakePONTIAC
    Beginning Year1968
    Ending Year1977
    Engine TypeV8
    Engine FamilyPontiac V8
    Engine Size5.7L/350
  • MakePONTIAC
    Beginning Year1970
    Ending Year1976
    Engine TypeV8
    Engine FamilyPontiac V8
    Engine Size7.5L/455

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