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Mr. Gasket Ultra-Seal Valve Cover Gaskets - 5869

Mr. Gasket Ultra-Seal Valve Cover Gaskets - 5869

SKU: 5869
Regular price $30.70 USD
Regular price Sale price $30.70 USD
Sale Sold out


Ultra-Seal is Mr. Gasket premium valve cover gasket material. It's manufactured from a high density cork and rubber blend with a black latex coat applied to the outside to help seal minor flange irregularites and eliminate oil leakage. It creates a positive seal by controlled swelling of the gasket material when exposed to hot oil. For original equipment replacement, high performance street, drag race and oval track use. Sold as a pair, these gaskets are .187 inch thick.


    Year Make Model Submodel Engine Size
    1968 - 1970 Pontiac Tempest 400/6.6 V8
    1968 - 1970 Pontiac Executive 400/6.6 V8
    1968 - 1970 Pontiac Tempest 350/5.7 V8
    1968 - 1969 Pontiac Executive 428/7 V8
    1970 Pontiac Executive 455/7.5 V8
    1967 - 1978 Pontiac Bonneville 400/6.6 V8
    1977 Pontiac Bonneville 350/5.7 V8
    1972 - 1978 Pontiac Catalina 400/6.6 V8
    1972 - 1977 Pontiac Catalina 350/5.7 V8
    1968 - 1977 Pontiac Firebird 350/5.7 V8
    1968 - 1979 Pontiac Firebird 400/6.6 V8
    1973 - 1975 Pontiac Grand Am 400/6.6 V8
    1973 - 1975 Pontiac Grand Am 350/5.7 V8
    1975 - 1977 Pontiac Grand LeMans 400/6.6 V8
    1975 - 1977 Pontiac Grand LeMans 350/5.7 V8
    1976 - 1977 Pontiac Grand Prix 350/5.7 V8
    1967 - 1977 Pontiac Grand Prix 400/6.6 V8
    1971 - 1978 Pontiac Grand Safari 400/6.6 V8
    1973 - 1975 Pontiac Grandville 400/6.6 V8
    1968 - 1977 Pontiac LeMans 350/5.7 V8
    1968 - 1977 Pontiac LeMans 400/6.6 V8
    1972 - 1976 Pontiac Ventura 350/5.7 V8
    1965 - 1970 Pontiac Bonneville
    1965 - 1971 Pontiac Catalina
    1971 Pontiac Bonneville 455/7.5 V8
    1967 Pontiac Firebird 326/5.3 V8
    1971 Pontiac Firebird 455/7.5 V8
    1965 - 1971 Pontiac Grand Prix
    1971 Pontiac Grand Safari 455/7.5 V8
    1971 Pontiac Grandville
    1965 - 1971 Pontiac GTO
    1972 - 1973 Pontiac GTO 400/6.6 V8
    1965 - 1967 Pontiac LeMans 326/5.3 V8
    1970 - 1971 Pontiac LeMans 455/7.5 V8
    1965 - 1966 Pontiac Star Chief
    1965 - 1967 Pontiac Tempest 326/5.3 V8

    Application Pontiac V8
    Brand Mr. Gasket
    Emission Code 5
    Engine Pontiac V8
    Packaging Retail - Skin Pack
    Product Type Valve Cover Gaskets
    Valve Cover Gasket Material Ultra Seal
    Valve Cover Gasket Thickness .187"
    Warranty Limited 90 Day
    Weight 0.5
    View full details

    Policies and FAQs

    Return Policy

    We accept returns on products within 30 days of delivery. Return shipping is the responsibility of the buyer unless we, the seller, are at fault.

    Fault reasons include but are not limited to:
    • Buyer was shipped the wrong product
    • Buyer was shipped a damaged product
    • The product page had incorrect fitment and the part does not fit the Buyer's vehicle
    The Buyer will not be refunded outbound shipping unless the Seller (Modern Day Muffler & Brake) is at fault.
    In cases where the Buyer purchases and ships the return please note that if the Shipper (ex. USPS, FedEx, UPS, etc.) loses the return we will not be able to offer a refund as the Buyer must contact the Shipper and make a claim.
    All products must be returned in original condition, meaning that the product must not be damaged, installed, or missing pieces/parts. If the product is not in original condition a deduction will be issued of up to 50% of the purchase price of the product.
    Opened boxes, plastic bags, and other packaging are not considered damage (excluding single use items such as, but not limited to, liquids, software, and other components that cannot be reused/resealed).
    When we, the seller, are at fault, please Contact Us for a return label, products returned with a shipping label not provided by the seller will not be refunded to the buyer. Please also note that our return labels are issued with the dimensions and weight of the original shipment, if the product is being returned in any box/package besides the original please Contact Us with the dimensions and weight.

    Returns must be sent to this address:
    Modern Day Muffler & Brake
    774 Broad Street
    Wadsworth, OH 44281
    Products returned directly to a manufacturer or the incorrect address may be issued a deduction or denied a refund entirely.
    If a product was delivered outside the 30 day return window or is no longer in original condition please contact us as we may be able to issue a refund in store credit and/or with a deduction. If this is the case please Contact Us as these situations are handled on a case by case basis.
    If there are any questions, concerns, or doubts about return eligibility please Contact Us and we would be more than happy to assist you.
    This page and policy were last updated: July 14th 2023


    This is the line that runs from the front of the vehicle to the rear. On most vehicles it connects to a junction then you will have rear axle lines. On a few cars the intermediate lines will connect to the rear wheels. It is recommended to change the axle lines if you are replacing the intermediate lines.

    Our kits include all of the solid metal lines for that section of the vehicle.

    We are happy to help! Please help us to help you by going to our return form and filling out the form as best as you can in order to request a return.

    • Modern Day stands by our parts and is happy to accept returns within 30 days of purchase. Parts must be in new condition.
    • If a part arrives damaged, or is defective, Please report it to us immediately. So we can handle it for your promptly.

    Yes but you will need to order in advance. All of our items are not stocked at our location. So please place your order online and we will notify you when it is ready for pick up.

    Unfortunately we cannot offer single lines outside of kits

    Yes, all are covered by the manufacturer's standard warranty. Most warranties cover the cost of parts. Any installation or other fees are non-refundable.

    Online we accept PayPal and all major Credit Cards. If your are picking an item up we gladly accept cash.

    We can only ship to your confirmed address in PayPal or your billing address if you pay with a credit card.

    Orders typically Arrive within 3 to 10 days depending if it is a stocked item or something we have manufactured at time of sale.

    Yes please send us a message through our custom orders page.

    Yes, but items sent out of the continental U.S. may incur additional charges based on their destination

    The left and right sides on a vehicle are determined as though you were sitting in the driver's seat. The left is the driver's side, and the right is the passenger's side.

    Check it again tomorrow. It takes up to 1 day for the carrier to give status and a delivery date. UPS and FedEx provide delivery dates, USPS usually does not but they take no longer than 5 business days.

    Yes! Thank you for your military service!

    Still have a question or concern?  Please contact use our contact us form!

    Yes! Thank you for your military service!

    Warranty Information

    Customer service is our top priority and because we value your time and energy we ask you to visit our Contact Us page and reach out so that we may assist you in finding the correct warranty for your product. Please include your name, the name on the order, the order number, and the SKU of the product to ensure the quickest and most accurate response to your inquiry.

    Product Notices

    *NOTE: Product images may not reflect actual product appeareance.