SKU: 55938029545

Mr. Gasket Ultra-Seal Header Gaskets - 5920

$50.62 $56.25
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Ships within 48 hours · Estimated delivery Jul 11 - Jul 16

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Description

Mr. Gasket Ultra-Seal Header Gaskets - 5920Overview: Manufactured from high temperature steel core graphite faced exhaust material. 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. Conforms to and seals minor surface irregularities. High recovery material allows header or manifold flange to stay sealed if flange loses clamp

Overview:

Manufactured from high-temperature steel core/graphite faced exhaust material. 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. Conforms to and seals minor surface irregularities. High recovery material allows header or manifold flange to stay sealed if flange loses clamp-load. Can be trimmed if necessary for modified port applications. For original equipment replacement, high performance street, drag race and oval track use.

Features:

    Application:

    Year Make Model Submodel Engine Size
    1971 - 1976 Pontiac Bonneville 455/7.5 V8
    1967 - 1974 Pontiac Bonneville 400/6.6 V8
    1965 - 1969 Pontiac Catalina
    1967 Pontiac Catalina 428/7 V8
    1970 - 1974 Pontiac Catalina 400/6.6 V8
    1970 - 1976 Pontiac Catalina 455/7.5 V8
    1965 - 1970 Pontiac Bonneville
    1970 - 1976 Pontiac Catalina 350/5.7 V8
    1971 - 1976 Pontiac Firebird 455/7.5 V8
    1968 - 1976 Pontiac Firebird 350/5.7 V8
    1973 - 1975 Pontiac Grand Am 350/5.7 V8
    1973 - 1975 Pontiac Grand Am 455/7.5 V8
    1975 - 1976 Pontiac Grand LeMans 350/5.7 V8
    1975 - 1976 Pontiac Grand LeMans 455/7.5 V8
    1976 Pontiac Grand Prix 350/5.7 V8
    1971 - 1976 Pontiac Grand Prix 455/7.5 V8
    1968 - 1976 Pontiac LeMans 350/5.7 V8
    1970 - 1976 Pontiac LeMans 455/7.5 V8
    1971 - 1976 Pontiac Grand Safari 455/7.5 V8
    1972 - 1975 Pontiac Grandville 455/7.5 V8
    1972 - 1976 Pontiac Ventura 350/5.7 V8
    1966 Pontiac Bonneville 389/6.4 V8
    1967 Pontiac Bonneville 428/7 V8
    1968 - 1974 Pontiac Firebird 400/6.6 V8
    1967 Pontiac Firebird 326/5.3 V8
    1973 - 1974 Pontiac Grand Am 400/6.6 V8
    1967 - 1974 Pontiac Grand Prix 400/6.6 V8
    1965 - 1970 Pontiac Grand Prix
    1971 - 1974 Pontiac Grand Safari 400/6.6 V8
    1971 Pontiac Grandville
    1973 Pontiac Grandville 400/6.6 V8
    1965 - 1970 Pontiac GTO
    1966 Pontiac Grand Prix 389/6.4 V8
    1967 Pontiac Grand Prix 428/7 V8
    1971 - 1973 Pontiac GTO 400/6.6 V8
    1971 - 1973 Pontiac GTO 455/7.5 V8
    1968 - 1974 Pontiac LeMans 400/6.6 V8
    1965 - 1967 Pontiac LeMans 326/5.3 V8
    1965 Pontiac Star Chief
    1966 Pontiac Star Chief 389/6.4 V8
    1965 - 1967 Pontiac Tempest 326/5.3 V8
    1968 - 1970 Pontiac Executive 400/6.6 V8
    1968 - 1970 Pontiac Tempest 350/5.7 V8
    1967 Pontiac Executive
    1968 - 1969 Pontiac Executive 428/7 V8
    1968 - 1970 Pontiac Tempest 400/6.6 V8
    1970 Pontiac Executive 455/7.5 V8

    Specs:

    Brand Mr. Gasket
    Collector Gaskets Included No
    Emission Code 5
    Engine Pontiac V8
    Gasket Line Ultra-Seal
    Material Ultra-seal
    Port Shape Oval
    Port Size 1.46" x 1.93"
    Product Type Header Gaskets
    Thickness .062"
    Warning California Proposition 65
    Warranty Limited 90 Day Warranty
    Weight 0.38
    Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
    1. Standard Shipping : 3-10 business days
    • If time is of the essence, please consider selecting expedited delivery for faster service.
    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
    • Please click here for more details>>> Return & Exchange Policy
    SKU: 55938029545

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    4.8 ★★★★★
    Based on 1017 reviews
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    Product Reviews
    A
    Verified Purchase
    Amazon Customer
    Bozeman, US
    ★★★★★ 5
    GET THEM!!
    Size: 12 Pairs / 24 pcs, Size: 12 Pairs / 24 pcs
    Fully gold plated inside and out! I initially got the amazon basic connectors for the same price, but was disappointed in the tiny burgundy positive label they had. It was also very dirty inside the connector and it wasn’t gold plated through out the connector. These are excellent in quality and have a bright red ban on the connector! You wont be disappointed and beats out Sewell connectors for the price!
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on January 24, 2025
    M
    Verified Purchase
    Mark
    Belleville, US
    ★★★★★ 2
    Decent, but be careful of frequent use.
    Size: 12 Pairs / 24 pcs, Size: 12 Pairs / 24 pcs
    The looks are very nice, functional if left alone once assembled. After that I would leave them alone otherwise you risk the main male portion just coming loose of the housing, sound quality is decent, nothing to write home about, but again, not very durable. If they could fix that 1 thing, these would be very good buy and value, the rest of each plug is hefty and well made.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on January 12, 2026
    A
    Verified Purchase
    Amazon Customer
    Alexandria, US
    ★★★★★ 5
    Inexpensive part and YouTube knowledge lead to quick fix
    Size: 96158T-1PCS
    Solenoid went out on boat. After viewing multiple videos on YouTube I figured that my solenoid was bad. Ordered this and received a day later. Replaced the other one and this worked perfectly.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on August 9, 2025
    I
    Verified Purchase
    Ivar Andreassen
    Carnegie, US
    ★★★★★ 5
    Worked perfectly!
    Size: 96158T-1PCS
    Have an older Mercury 40hp 2 stroke. This Solenoid worked perfectly. It is not that easy to install, due to the design of the engine. It does require a bit of patient and the right tools to do it. If you have big hands and don't do this type of repair to often, call a friend that is better than you to get some help :) I have an older engine but it runs like charm. I will order an extra Solenoid and place in the box of "important spare parts" for the future. Very good experience for the purchase and overall quality of the part.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on January 14, 2022
    M
    Verified Purchase
    me
    Phoenix, US
    ★★★★★ 5
    Perfect fit and works great
    Size: 96158T-2PCS
    Perfect fit and works great. It is great that it comes as a 2pk. I replaced both with no need to change wiring, and kept the working one I had, as backup.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 27, 2026

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