Mr. Gasket Ultra-Seal Valve Cover Gaskets - 5871
SKU: 20605315724

Mr. Gasket Ultra-Seal Valve Cover Gaskets - 5871

Sale price$47.93 Regular price$53.25
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 8 - Jul 13

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Mr. Gasket Ultra-Seal Valve Cover Gaskets - 5871Overview: Ultra Seal is Mr. Gasket's 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 OE replacement, high performance street, drag race and oval track use. Sold as a pair, these gaskets are

Overview:

Ultra-Seal is Mr. Gasket's 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 OE replacement, high performance street, drag race and oval track use. Sold as a pair, these gaskets are .187" thick.

Features:

    Application:

    Year Make Model Submodel Engine Size
    1970 - 1976 Mercury Montego 351/5.8 V8
    1972 - 1973 Mercury Monterey 351/5.8 V8
    1971 - 1974 Mercury Monterey 400/6.6 V8
    1972 - 1976 Mercury Montego 400/6.6 V8
    1975 - 1976 Ford Elite 400/6.6 V8
    1975 - 1976 Ford Elite 351/5.8 V8
    1971 - 1972 Ford Custom 351/5.8 V8
    1971 - 1972 Ford Custom 400/6.6 V8
    1971 - 1977 Ford Custom 500 400/6.6 V8
    1971 - 1974 Ford Country Squire 351/5.8 V8
    1971 - 1974 Ford Country Squire 400/6.6 V8
    1971 - 1977 Ford Custom 500 351/5.8 V8
    1970 Ford Fairlane 351/5.8 V8
    1971 - 1974 Ford Galaxie 500 400/6.6 V8
    1970 - 1974 Ford Galaxie 500 351/5.8 V8
    1972 - 1976 Ford Gran Torino 351/5.8 V8
    1972 - 1976 Ford Gran Torino 400/6.6 V8
    1971 - 1978 Ford LTD 400/6.6 V8
    1971 - 1978 Ford LTD 351/5.8 V8
    1970 - 1973 Ford Mustang 351/5.8 V8
    1970 - 1974 Ford Ranch Wagon 351/5.8 V8
    1971 - 1974 Ford Ranch Wagon 400/6.6 V8
    1970 - 1979 Ford Ranchero 351/5.8 V8
    1972 - 1978 Ford Ranchero 400/6.6 V8
    1972 - 1978 Ford Thunderbird 400/6.6 V8
    1970 - 1976 Ford Torino 351/5.8 V8
    1972 - 1976 Ford Torino 400/6.6 V8
    1971 - 1974 Mercury Colony Park 400/6.6 V8
    1972 - 1973 Mercury Colony Park 351/5.8 V8
    1969 Mercury Cougar 302/5 V8
    1970 - 1979 Mercury Cougar 351/5.8 V8
    1973 - 1978 Mercury Cougar 400/6.6 V8
    1977 - 1978 Ford LTD II 400/6.6 V8
    1977 - 1979 Ford LTD II 351/5.8 V8
    1977 - 1979 Ford Thunderbird 351/5.8 V8
    1977 - 1978 Lincoln Continental 400/6.6 V8
    1979 Lincoln Continental
    1977 - 1978 Lincoln Mark V 400/6.6 V8
    1979 Lincoln Mark V
    1978 Mercury Grand Marquis 351/5.8 V8
    1975 - 1978 Mercury Grand Marquis 400/6.6 V8
    1971 - 1978 Mercury Marquis 400/6.6 V8
    1972 - 1978 Mercury Marquis 351/5.8 V8
    1971 - 1974 Ford Country Sedan 400/6.6 V8
    1971 - 1974 Ford Country Sedan 351/5.8 V8
    1970 - 1971 Mercury Cyclone 351/5.8 V8
    1978 - 1981 Ford Bronco 351/5.8 V8
    1978 - 1979 Ford Bronco 400/6.6 V8
    1980 Ford E-250 Econoline 400/6.6 V8
    1980 - 1981 Ford E-250 Econoline 351/5.8 V8
    1980 - 1981 Ford E-250 Econoline Club Wagon 351/5.8 V8
    1980 - 1982 Ford E-250 Econoline Club Wagon 400/6.6 V8
    1980 - 1981 Ford E-350 Econoline 351/5.8 V8
    1980 - 1982 Ford E-350 Econoline 400/6.6 V8
    1980 - 1981 Ford E-350 Econoline Club Wagon 351/5.8 V8
    1980 - 1982 Ford E-350 Econoline Club Wagon 400/6.6 V8
    1977 - 1979 Ford F-100 351/5.8 V8
    1977 - 1979 Ford F-100 400/6.6 V8
    1977 - 1981 Ford F-150 351/5.8 V8
    1977 - 1979 Ford F-150 400/6.6 V8
    1977 - 1981 Ford F-250 351/5.8 V8
    1977 - 1982 Ford F-250 400/6.6 V8
    1977 - 1982 Ford F-350 400/6.6 V8
    1977 - 1981 Ford F-350 351/5.8 V8

    Specs:

    Application Small Block Ford
    Brand Mr. Gasket
    Emission Code 5
    Engine Ford Boss 302
    Engine Ford Cleveland
    Engine Ford Modified
    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
    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: 20605315724

    Discover Niche Categories That Outsell

    Top-Converting Item to Boost Your Average Order

    4.7 ★★★★★
    Based on 1083 reviews
    Sort
    Highest Rating
    Newest First
    Oldest First
    Product Reviews
    L
    Verified Purchase
    LoLo
    Chelsea, US
    ★★★★★ 3
    Color is off
    Color: Bronze
    I love the purse. The material is soft and the purse holds a lot. However the color wasn't close to what I ordered. Luckily I had a dress to match.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 16, 2026
    M
    Verified Purchase
    mo
    Louisville, US
    ★★★★★ 5
    Beautiful and sleek black hobo bag!
    Color: Black, Size: One Size, Color: Black, Size: One Size
    This purse is absolutely lovely for the price! Such a cute hobo bag, yet is modern and sleek to make any outfit look polished. It is super soft and has a faux leather texture with a beautiful sheen to it. It seems like great quality and if it ever gets saggy or old, it's cheap enough to replace easily. I love the gold hardware and it also has a lovely gold metal label of the brand on the outside making it look expensive. Also the strap is thick enough that it is quite comfortable on the shoulder. The only gripe I have is that it looked a bit bigger online, it fits about as much as a tote bag would; also the pockets inside are a bit small, but overall, I LOVE it!
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on March 22, 2026
    A
    Verified Purchase
    Ava Zola
    Alexandria, US
    ★★★★★ 5
    So spacious, great school bag
    Color: Black, Size: One Size
    I love this bag! I was looking for a bag that would hold my laptop without looking like a school bag, and this is perfect for the job. It fits my MacBook, granted it’s a tight fit with the case on, and it’s like a bottomless pit. I lose things in there so often, it’s so big. I’ve been using it for months now and it’s showing pretty much no signs of wear, and it’s pretty lightweight until I put my school things in it. It has two pockets on the interior, one open one on the side and one that zips up on the other side. The one that zips holds a decent bit. I held a ton of makeup in it before I decided I needed something better and that I was making it poke out too much. I don’t use the other side as much. I hold a couple of things in it, but nothing that can easily slip out. Ultimately, this bag is sleek and easy to carry around, it’s also not uncomfortable to wear when holding heavy things. I feel like skinny straps always dig into my arm, but this one is comfy. I liked it so much that I got another one in red as well. Overall, it’s a great bag and I recommend it to anyone who needs a Mary Poppins bag to hold a lot of things.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on March 14, 2026
    P
    Verified Purchase
    Paige McKenzie Herndon
    Draper, US
    ★★★★★ 5
    spacious, pretty and super sturdy!!
    Color: Burgundy, Size: Large
    soooo nice I’m obsessed! I treat my purses like black holes but I wanted something I could customize to my liking and it’s big enough I added a bunch of small bags inside to separate things and it’s still so spacious, and the wine color is my fave this season
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on March 21, 2026
    C
    Verified Purchase
    Camy
    Bozeman, US
    ★★★★★ 5
    Love it
    Color: Cream, Size: Large
    I love this purse, not too big and not too small. I love the soft leather and also because I can use it when I dress up and or dress down, looks good either way. And the makeup purse is a great addition to help keep all my things together. Love it
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on February 24, 2026

    recommand products