SKU: 30167573201

Mr. Gasket Ultra-Seal Valve Cover Gaskets - 5870

$39.95 $44.39
Save 10%
No.2 Bestseller on sm10m.ch >

Pay in installments of $11.10 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 9 - Aug 14

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Mr. Gasket Ultra-Seal Valve Cover Gaskets - 5870Overview: 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.

Overview:

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.

Features:

    Application:

    Year Make Model Submodel Engine Size
    1981 - 1989 Lincoln Town Car
    1987 - 1989 Mercury Colony Park
    1979 - 1989 Mercury Grand Marquis 302/5 V8
    1978 - 1981 Mercury Grand Marquis 351/5.8 V8
    1977 Lincoln Versailles 302/5 V8
    1978 - 1980 Lincoln Versailles
    1979 - 1986 Mercury Capri 302/5 V8
    1968 - 1977 Mercury Comet 302/5 V8
    1968 - 1988 Mercury Cougar 302/5 V8
    1971 - 1981 Mercury Marquis 351/5.8 V8
    1979 - 1982 Mercury Marquis 302/5 V8
    1975 - 1980 Mercury Monarch 302/5 V8
    1975 - 1977 Mercury Monarch 351/5.8 V8
    1969 - 1976 Mercury Montego 351/5.8 V8
    1978 - 1979 Mercury Zephyr 302/5 V8
    1968 - 1989 Ford Mustang 302/5 V8
    1968 - 1989 Ford Bronco 302/5 V8
    1971 Mercury Monterey 351/5.8 V8
    1966 - 1967 Mercury Voyager 289/4.7 V8
    1964 - 1967 Mercury Villager 289/4.7 V8
    1975 - 1976 Ford Elite 351/5.8 V8
    1987 - 1989 Ford LTD Crown Victoria 302/5 V8
    1987 - 1991 Ford LTD Crown Victoria 351/5.8 V8
    1964 - 1967 Ford Custom 500 289/4.7 V8
    1964 Ford Custom 500 260/4.3 V8
    1964 Mercury Villager 260/4.3 V8
    1964 Ford Galaxie 500 260/4.3 V8
    1964 - 1967 Ford Galaxie 500 289/4.7 V8
    1964 Ford Custom 260/4.3 V8
    1965 - 1967 Ford Custom 289/4.7 V8
    1969 - 1972 Ford Custom 351/5.8 V8
    1968 - 1972 Ford Custom 302/5 V8
    1969 - 1983 Ford F-100 302/5 V8
    1972 - 1989 Ford F-250 302/5 V8
    1972 - 1980 Ford F-350 302/5 V8
    1977 - 1992 Ford E-350 Econoline Club Wagon 351/5.8 V8
    1979 - 1980 Ford E-350 Econoline Club Wagon 302/5 V8
    1969 - 1974 Ford E-200 Econoline 302/5 V8
    1968 - 1970 Ford Fairlane 302/5 V8
    1964 Ford Falcon 260/4.3 V8
    1964 - 1968 Ford Falcon 289/4.7 V8
    1966 - 1968 Ford Bronco 289/4.7 V8
    1964 Ford Country Sedan 260/4.3 V8
    1964 - 1967 Ford Country Sedan 289/4.7 V8
    1968 - 1972 Ford Country Sedan 302/5 V8
    1969 - 1974 Ford Country Sedan 351/5.8 V8
    1964 Ford Country Squire 260/4.3 V8
    1964 - 1967 Ford Country Squire 289/4.7 V8
    1968 - 1972 Ford Country Squire 302/5 V8
    1969 - 1974 Ford Country Squire 351/5.8 V8
    1968 - 1972 Ford Custom 500 302/5 V8
    1969 - 1977 Ford Custom 500 351/5.8 V8
    1969 - 1983 Ford E-100 Econoline 302/5 V8
    1969 - 1974 Ford E-300 Econoline 302/5 V8
    1963 - 1967 Ford Fairlane 289/4.7 V8
    1964 Ford Fairlane 260/4.3 V8
    1969 Ford Fairlane 351/5.8 V8
    1964 - 1967 Mercury Caliente 289/4.7 V8
    1971 Mercury Colony Park 351/5.8 V8
    1968 Mercury Cougar 289/4.7 V8
    1969 - 1979 Mercury Cougar 351/5.8 V8
    1964 - 1967 Mercury Comet 289/4.7 V8
    1964 - 1967 Mercury Cyclone 289/4.7 V8
    1967 Mercury Commuter 289/4.7 V8
    1964 Mercury Cyclone 260/4.3 V8
    1968 - 1970 Mercury Cyclone 302/5 V8
    1969 Mercury Cyclone 351/5.8 V8
    1968 - 1974 Mercury Montego 302/5 V8
    1968 - 1974 Ford Torino 302/5 V8
    1969 - 1976 Ford Torino 351/5.8 V8
    1964 Mercury Caliente 260/4.3 V8
    1964 Mercury Comet 260/4.3 V8
    1969 Mercury Comet 351/5.8 V8
    1969 Mercury Comet 390/6.4 V8
    1981 - 1992 Ford Bronco 351/5.8 V8
    1975 - 1977 Ford Bronco
    1969 - 1984 Ford LTD 351/5.8 V8
    1968 - 1986 Ford LTD 302/5 V8
    1987 - 1989 Ford Country Squire
    1975 - 1983 Ford E-100 Econoline 351/5.8 V8
    1975 - 1983 Ford E-100 Econoline Club Wagon 351/5.8 V8
    1979 - 1983 Ford E-100 Econoline Club Wagon 302/5 V8
    1975 - 1992 Ford E-150 Econoline 351/5.8 V8
    1975 - 1989 Ford E-150 Econoline 302/5 V8
    1975 - 1989 Ford F-150 302/5 V8
    1981 - 1992 Ford F-150 351/5.8 V8
    1981 - 1992 Ford F-250 351/5.8 V8
    1981 - 1992 Ford F-350 351/5.8 V8
    1978 - 1979 Ford Fairmont 302/5 V8
    1972 - 1976 Ford Gran Torino 351/5.8 V8
    1975 - 1980 Ford Granada 302/5 V8
    1975 - 1977 Ford Granada 351/5.8 V8
    1977 - 1979 Ford LTD II 302/5 V8
    1977 - 1979 Ford LTD II 351/5.8 V8
    1971 - 1977 Ford Maverick 302/5 V8
    1964 Ford Ranchero 260/4.3 V8
    1968 - 1979 Ford Ranchero 302/5 V8
    1969 - 1979 Ford Ranchero 351/5.8 V8
    1964 Ford Ranch Wagon 260/4.3 V8
    1964 - 1967 Ford Ranch Wagon 289/4.7 V8
    1968 - 1972 Ford Ranch Wagon 302/5 V8
    1969 - 1974 Ford Ranch Wagon 351/5.8 V8
    1964 Ford Sprint 260/4.3 V8
    1965 - 1967 Ford Ranchero 289/4.7 V8
    1975 - 1992 Ford E-250 Econoline 351/5.8 V8
    1975 - 1989 Ford E-250 Econoline 302/5 V8
    1975 - 1991 Ford E-250 Econoline Club Wagon 351/5.8 V8
    1979 - 1980 Ford E-250 Econoline Club Wagon 302/5 V8
    1975 - 1982 Ford E-350 Econoline 302/5 V8
    1975 - 1992 Ford E-350 Econoline 351/5.8 V8
    1968 - 1970 Ford Falcon 302/5 V8
    1965 Ford Falcon Sedan Delivery 289/4.7 V8
    1964 - 1967 Ford Galaxie 289/4.7 V8
    1969 - 1974 Ford Galaxie 500 351/5.8 V8
    1968 - 1972 Ford Galaxie 500 302/5 V8
    1964 Ford Falcon Sedan Delivery 260/4.3 V8
    1972 - 1974 Ford Gran Torino 302/5 V8
    1964 Ford Galaxie 260/4.3 V8
    1965 - 1967 Ford LTD 289/4.7 V8
    1964 Ford Mustang 260/4.3 V8
    1964 - 1968 Ford Mustang 289/4.7 V8
    1969 - 1970 Ford Mustang 351/5.8 V8
    1979 - 1989 Ford E-150 Econoline Club Wagon 302/5 V8
    1975 - 1992 Ford E-150 Econoline Club Wagon 351/5.8 V8
    1975 - 1978 Ford Mustang II 302/5 V8
    1977 - 1979 Ford Thunderbird 351/5.8 V8
    1977 - 1988 Ford Thunderbird 302/5 V8
    1980 - 1985 Lincoln Continental 302/5 V8
    1983 - 1987 Lincoln Continental
    1980 Lincoln Mark VI 302/5 V8
    1984 - 1985 Lincoln Mark VII 302/5 V8
    1986 - 1989 Lincoln Mark VII
    1980 Lincoln Continental 351/5.8 V8
    1980 Lincoln Mark VI 351/5.8 V8
    1981 - 1983 Lincoln Mark VI
    1977 Lincoln Versailles 351/5.8 V8

    Specs:

    Application Small Block Ford - Windsor
    Brand Mr. Gasket
    Emission Code 5
    Engine Ford Small Block Windsor
    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: 30167573201

    Discover Niche Categories That Outsell

    Top-Converting Item to Boost Your Average Order

    4.7 ★★★★★
    Based on 10 reviews
    Sort
    Highest Rating
    Newest First
    Oldest First
    Product Reviews
    I
    Verified Purchase
    ibuy2much
    Dallas, US
    ★★★★★ 4
    Nice office chair!
    Color: Dark
    This is a nice office chair. All of the features work as stated. I would say the seat is slightly more firm than I prefer, but comfort is subjective. The pleather is soft and I like that the arm rests fold out of the way.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 11, 2026
    H
    HateToRegister
    Natrona Heights, US
    ★★★★★ 5
    This Marsail Executive Office Chair Is Excellent For A Comfortable And Polished Desk Setup
    Color: Dark
    This Marsail executive office chair is excellent, and it brings together comfort, support and a clean professional look in a very practical way. The PU leather has a smooth, polished presence that suits a desk chair well without looking overly bulky. I appreciate that the design includes flip-up armrests, a height-adjustable seat, swivel movement and rolling mobility in one complete chair. The cushioning gives the chair a substantial seated feel, while the back design adds support without making the chair look heavy. It is an office chair that feels thoughtfully built for daily desk work, focused tasks and general seated comfort. The chair arrived securely protected and in very good condition, with the main parts kept in place well through transit. The PU leather surfaces looked clean, smooth and free from distracting marks when unpacked. The base, wheels, armrests, backrest and hardware all appeared properly finished and ready for assembly. Nothing about the chair parts looked loose, flimsy or poorly handled when it arrived. The included components were organized. The appearance of this chair is one of its strongest qualities because it has a dark, sleek and professional style. The chair fabric gives it a refined executive look, while the breathable mesh center keeps the backrest from appearing too solid or oversized. The flip-up armrests blend into the design nicely and add a cleaner profile when raised. The chair has a balanced shape, with a supportive back, plush seat and wide base that all work together visually. It looks modern without being too flashy, which makes it easy to place with different desks and work areas. Functionality is where this chair becomes especially practical because it is easy to put together and simple to adjust. The height adjustment works well for getting the seat into a comfortable position at a desk. The swivel and rolling movement make it easy to shift, turn and reach without the chair feeling stiff. The reclining range and gentle rocking function add a useful option for leaning back during breaks. The flip-up armrests are especially convenient because they allow the chair to tuck under a desk more easily and create extra freedom of movement when needed. The value is strong because this chair offers several useful features in one well-rounded design. The thicker cushioning, contoured support, PU leather surface, breathable backrest, reclining function and flip-up armrests all add to its usefulness. The sturdy base and stated 300-pound support rating also give it a more dependable feel than a basic desk chair. It provides the comfort expected from an executive chair while still offering space-saving details that make it practical. For the features, comfort and overall build, it delivers a very complete office seating option. I highly recommend this Marsail executive office chair for anyone wanting a comfortable, polished and functional desk chair. It is excellent, easy to put together and built with enough adjustability to support different work habits. The combination of plush cushioning, ergonomic shaping, smooth movement and flip-up armrests makes it especially useful for a home office or workspace. I also like that it has a professional look without sacrificing everyday convenience. It is a strong choice for dependable seating that looks good, works well and offers solid comfort.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 5, 2026
    C
    Cart Curator
    Alexandria, US
    ★★★★★ 5
    Comfortable for daily use!
    Color: Dark, Color: Dark
    After using this chair for work and general desk time, I think it does a nice job balancing comfort, adjustability, and overall build quality without feeling overly bulky or cheap. It feels designed for people who spend long stretches at a desk and want something supportive but still comfortable enough to relax in occasionally. Assembly was straightforward. The instructions were clear, the hardware was organized well, and all the holes lined up properly during setup. I put it together by myself in around 20 minutes without needing extra tools. Once assembled, the chair immediately felt sturdy and stable rather than wobbly. The overall quality is solid for this price range. The PU leather has a soft feel and doesn’t have the stiff plastic-like texture some office chairs use. The stitching looks clean, the armrests feel secure, and the rolling base moves smoothly across the floor. The chair also feels durable overall, especially around the frame and base where cheaper chairs sometimes feel weak or shaky after a few weeks of use. It's very comfortable. The seat cushion is thick and supportive without feeling overly hard, and it stays comfortable during long work sessions. I’ve spent multiple hours at a time sitting in it without constantly adjusting positions or feeling pressure points. The mesh section in the backrest also helps airflow a bit, which keeps it from feeling too hot during extended use. The lumbar support is great. The backrest naturally follows the curve of your spine and provides good lower back support while still feeling relaxed enough for casual sitting. I also liked the higher back design since it supports the upper back and shoulders well during longer periods at the desk. The flip-up armrests ended up being more useful than I expected. They make it easy to slide the chair under the desk when not in use, and they also give more room if you like sitting cross-legged occasionally. Solid chair overally. It has a good mix of comfort, support, ease of use, and practical features without feeling overpriced.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 26, 2026
    T
    theman
    Whiting, US
    ★★★★★ 4
    Comfortable, easy to assemble, but no adjustable armrests
    Color: Dark, Color: Dark
    The Marsail Executive Office Chair Ergonomic Desk Chair with Flip-up Armrests PU Leather was an easy to assemble chair; I was done within 15 minutes with the included tool. Extra screws were included which was nice as the main pack had broken open and I couldn't find one of the primary screws in the larger box (my guess is I probably tossed it on accident with the packaging material) but had the backup so all was well. The instructions were well written and clear. I've now had the chair in my office for over a week. For context; I work from home and also am a PC gamer so I spend a sizeable portion of my time at my desk in the chair. I also live in the southeast US and its April when I am writing this review. With that said; its been in the 70s/80s regularly so feel like I can comment fairly on its performance in warmer temps; though I'll have to try and remember to comeback and update it for the summer season when AC is on full blast and humidity is higher (and the inevitable "swamp butt" sets in). In the first week I've found the chair to be comfortable to sit in. It is wide enough and the arm rests to the side enough that I can sort of lean left and right without much trouble. I like this wider seat and armrests compared to chairs with more narrow span as I tend to shift and move a lot while sitting. The PU leather material feels nice against my clothes and does "grip" the clothing which helps with my tendency to want to slide forward when sitting. At first I thought the "grip" would be annoying but I sort of like it after a week of using the chair. The cushion material is comfortable for sitting and rebounds well after I've been sitting in it for a long period of time. The armrests feature the same sort of cushion and PU leather material which makes them comfortable to sit back and lean on. For the price I think this is a solid office chair and a comfortable option. Longevity will only be tested over time so I'll see if I can remember to update this review over time. I am happy with the chair in my office. A few downsides about the chair that I have: - The wheels are very stiff and don't roll as smoothly as I'd like. They stay put when I am sitting at the desk but when I need to push away they take a bit of force. - The arm rests can't be adjusted for height. They are one height and can only be moved out of the way completely. For someone like who likes to lean or shift sides this is less than ideal as I'd normally make adjustments to the armrests. With that said it is nice to be able to move them out of the way completely when I don't need them. - Lumbar support could be better. I will be using additional support in the chair for my back.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 13, 2026
    S
    Sal
    Louisville, US
    ★★★★★ 5
    Good for sitting on it daily. Not that soft as expected
    Color: Dark, Color: Dark
    I’ve been using this chair for a few days now and overall it’s pretty solid for a home office setup, especially for the price range. Assembly took me about 30–40 minutes alone and all the parts were labeled clearly. Nothing arrived damaged and the instructions were easy to follow, though attaching the backrest was a little awkward with one person. Once assembled, the chair looks clean and professional. The PU leather feels smooth and the cushioning is definitely thicker than cheaper office chairs I’ve tried. It’s comfortable for working several hours at a time, although I wouldn’t describe it as super plush or “sink-in” soft. The seat has a firmer feel, which may actually be better for posture during long work sessions. The ergonomic support is decent. The backrest follows the shape of your back fairly well and gives noticeable lumbar support compared to flat office chairs. I spend a lot of time at my desk and this chair helped reduce some lower back discomfort. The reclining and rocking feature is also nice for quick breaks between meetings or while watching videos. It doesn’t recline extremely far, but enough to relax a bit without feeling unstable. One feature I ended up liking more than expected was the flip-up armrests. They make it easy to slide the chair completely under the desk and also give more room if you like sitting cross-legged occasionally. The chair rolls smoothly and feels stable even when leaning back. A couple downsides though. The faux leather can get warm after extended sitting, especially in a warmer room. The mesh section helps airflow a little, but not enough to fully prevent heat buildup. Also, while the chair is comfortable, it doesn’t quite feel “premium executive” level in terms of materials. Some of the plastic components and armrests feel more mid-range than luxury. Overall, I’d say it’s a good value office chair with solid comfort, decent back support, and practical features. Great for everyday work or study use, just keep expectations realistic if you’re looking for a super high-end executive chair feel.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 6, 2026

    recommand products

    Про громадянську непокору. About Civic Disobedience
    39.00
    КАР. Обчислюємо в межах 20. CARE. Calculate Within 20
    25.00
    Respect For Acting: Expanded Version
    81.00
    Зіронька Лаури (комплект із 3 книг). Star Of Laura (A Set Of 3 Books)
    76.00
    Дорожній рух та штрафи. Основні нормативні документи. Traffic And Penalties. Basic Normative Documents
    29.00