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- USA
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Ships within 48 hours · Estimated delivery Jul 9 - Jul 14
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For Your Every Summer RSVP, with Code: SUMMER15
Description
Mr. Gasket Rear Main Seal - 1968Overview: This Mr. Gasket Rear Main Seal is made from silicone to allow the seal to handle extreme engine oil temperature. It also provides for an upgrade for that leaky rope style seal and is a direct replacement for a rubber main seal. It's also injection molded for a precise fit. Features: Application: Year Make Model Submodel Engine Size 1968 1974 Plymouth Fury II 440 7. 2 V8 1972 1978 Plymouth Fury 400 6. 6 V8 1968 1978 Plymouth Fury 440 7. 2 V8
Overview:
This Mr. Gasket Rear Main Seal is made from silicone to allow the seal to handle extreme engine oil temperature. It also provides for an upgrade for that leaky rope style seal and is a direct replacement for a rubber main seal. It's also injection molded for a precise fit.
Features:
Application:
| Year | Make | Model | Submodel | Engine Size |
|---|---|---|---|---|
| 1968 - 1974 | Plymouth | Fury II | 440/7.2 V8 | |
| 1972 - 1978 | Plymouth | Fury | 400/6.6 V8 | |
| 1968 - 1978 | Plymouth | Fury | 440/7.2 V8 | |
| 1972 - 1974 | Plymouth | Fury II | 400/6.6 V8 | |
| 1968 - 1973 | Plymouth | Fury I | 440/7.2 V8 | |
| 1972 - 1974 | Dodge | D100 Pickup | 400/6.6 V8 | |
| 1968 - 1971 | Dodge | Charger | 426/7 V8 | |
| 1968 - 1974 | Dodge | Charger | 440/7.2 V8 | |
| 1972 - 1978 | Dodge | Charger | 400/6.6 V8 | |
| 1972 - 1974 | Dodge | D200 Pickup | 400/6.6 V8 | |
| 1965 - 1971 | Dodge | Coronet | 426/7 V8 | |
| 1973 - 1974 | Dodge | D200 Pickup | 440/7.2 V8 | |
| 1968 - 1976 | Dodge | Coronet | 440/7.2 V8 | |
| 1972 - 1976 | Dodge | Coronet | 400/6.6 V8 | |
| 1972 - 1974 | Dodge | D300 Pickup | 400/6.6 V8 | |
| 1973 - 1974 | Dodge | D300 Pickup | 440/7.2 V8 | |
| 1973 - 1974 | Dodge | D100 Pickup | 440/7.2 V8 | |
| 1974 | Dodge | M300 | 440/7.2 V8 | |
| 1974 | Dodge | M350 | 440/7.2 V8 | |
| 1966 - 1978 | Dodge | Monaco | 440/7.2 V8 | |
| 1972 - 1978 | Dodge | Monaco | 400/6.6 V8 | |
| 1966 - 1973 | Dodge | Polara | 440/7.2 V8 | |
| 1972 - 1973 | Dodge | Polara | 400/6.6 V8 | |
| 1974 - 1978 | Dodge | Ramcharger | 440/7.2 V8 | |
| 1974 | Dodge | W100 Pickup | 400/6.6 V8 | |
| 1974 | Dodge | W100 Pickup | 440/7.2 V8 | |
| 1965 | Dodge | Monaco | 426/7 V8 | |
| 1963 - 1965 | Dodge | Polara | 426/7 V8 | |
| 1974 | Dodge | W200 Pickup | 400/6.6 V8 | |
| 1974 | Dodge | W200 Pickup | 440/7.2 V8 | |
| 1963 - 1967 | Plymouth | Belvedere | 426/7 V8 | |
| 1966 - 1967 | Plymouth | Belvedere | 440/7.2 V8 | |
| 1970 - 1971 | Plymouth | Cuda | 426/7 V8 | |
| 1970 - 1971 | Plymouth | Cuda | 440/7.2 V8 | |
| 1963 - 1966 | Plymouth | Fury | 426/7 V8 | |
| 1963 | Plymouth | Fleet Special | 426/7 V8 | |
| 1972 - 1974 | Plymouth | Fury I | 400/6.6 V8 | |
| 1975 - 1978 | Chrysler | Cordoba | 400/6.6 V8 | |
| 1959 - 1975 | Chrysler | Imperial | ||
| 1959 - 1976 | Chrysler | New Yorker | ||
| 1966 - 1978 | Chrysler | Newport | 440/7.2 V8 | |
| 1972 - 1978 | Chrysler | Newport | 400/6.6 V8 | |
| 1972 - 1978 | Chrysler | New Yorker | 400/6.6 V8 | |
| 1972 - 1978 | Chrysler | New Yorker | 440/7.2 V8 | |
| 1972 - 1977 | Chrysler | Town & Country | ||
| 1975 - 1978 | Dodge | B200 | 440/7.2 V8 | |
| 1976 - 1978 | Dodge | B200 | 400/6.6 V8 | |
| 1975 - 1978 | Dodge | B300 | 440/7.2 V8 | |
| 1976 - 1978 | Dodge | B300 | 400/6.6 V8 | |
| 1976 - 1978 | Dodge | CB300 | 400/6.6 V8 | |
| 1968 - 1974 | Plymouth | Fury III | 440/7.2 V8 | |
| 1972 - 1974 | Plymouth | Fury III | 400/6.6 V8 | |
| 1972 - 1977 | Plymouth | Gran Fury | 400/6.6 V8 | |
| 1972 - 1977 | Plymouth | Gran Fury | 440/7.2 V8 | |
| 1968 - 1971 | Plymouth | GTX | 426/7 V8 | |
| 1967 - 1970 | Plymouth | GTX | ||
| 1968 - 1971 | Plymouth | Road Runner | 426/7 V8 | |
| 1969 - 1974 | Plymouth | Road Runner | 440/7.2 V8 | |
| 1968 - 1971 | Plymouth | GTX | 440/7.2 V8 | |
| 1965 - 1967 | Plymouth | Satellite | 426/7 V8 | |
| 1966 - 1974 | Plymouth | Satellite | 440/7.2 V8 | |
| 1972 - 1974 | Plymouth | Satellite | 400/6.6 V8 | |
| 1972 - 1975 | Plymouth | Road Runner | 400/6.6 V8 | |
| 1963 - 1964 | Plymouth | Savoy | 426/7 V8 | |
| 1970 | Plymouth | Superbird | 440/7.2 V8 | |
| 1974 - 1978 | Plymouth | Trailduster | 440/7.2 V8 | |
| 1967 | Plymouth | VIP | 440/7.2 V8 | |
| 1965 - 1967 | Plymouth | Belvedere II | 426/7 V8 | |
| 1967 | Plymouth | Belvedere II | 440/7.2 V8 | |
| 1965 | Plymouth | Fury III | 426/7 V8 | |
| 1965 | Plymouth | Fury II | 426/7 V8 | |
| 1959 - 1965 | Chrysler | 300 | 413/6.8 V8 | |
| 1963 | Chrysler | 300 | 426/7 V8 | |
| 1964 - 1965 | Dodge | 880 | 426/7 V8 | |
| 1967 - 1971 | Chrysler | 300 | ||
| 1966 | Chrysler | 300 | 440/7.2 V8 | |
| 1977 - 1978 | Dodge | CB300 | 440/7.2 V8 | |
| 1975 - 1978 | Dodge | D100 | 440/7.2 V8 | |
| 1976 - 1978 | Dodge | D100 | 400/6.6 V8 | |
| 1977 - 1978 | Dodge | D150 | 400/6.6 V8 | |
| 1978 | Dodge | D150 | 440/7.2 V8 | |
| 1975 - 1978 | Dodge | D200 | 440/7.2 V8 | |
| 1975 - 1978 | Dodge | D200 | 400/6.6 V8 | |
| 1976 - 1978 | Dodge | D300 | 400/6.6 V8 | |
| 1975 - 1978 | Dodge | D300 | 440/7.2 V8 | |
| 1978 | Dodge | D450 | 440/7.2 V8 | |
| 1978 | Dodge | D400 | 440/7.2 V8 | |
| 1978 | Dodge | Magnum | 400/6.6 V8 | |
| 1977 - 1978 | Dodge | Ramcharger | 400/6.6 V8 | |
| 1975 - 1977 | Dodge | Royal Monaco | 400/6.6 V8 | |
| 1975 - 1977 | Dodge | Royal Monaco | 440/7.2 V8 | |
| 1975 - 1977 | Dodge | W100 | 400/6.6 V8 | |
| 1975 - 1977 | Dodge | W100 | 440/7.2 V8 | |
| 1977 - 1978 | Dodge | W150 | 400/6.6 V8 | |
| 1978 | Dodge | W150 | 440/7.2 V8 | |
| 1975 - 1978 | Dodge | W200 | 440/7.2 V8 | |
| 1976 - 1978 | Dodge | W200 | 400/6.6 V8 | |
| 1976 - 1978 | Dodge | W300 | 400/6.6 V8 | |
| 1975 - 1978 | Dodge | W300 | 440/7.2 V8 | |
| 1976 - 1978 | Plymouth | PB200 | 440/7.2 V8 | |
| 1976 - 1978 | Plymouth | PB200 | 400/6.6 V8 | |
| 1976 - 1978 | Plymouth | PB300 | 440/7.2 V8 | |
| 1976 - 1978 | Plymouth | PB300 | 400/6.6 V8 | |
| 1977 - 1978 | Plymouth | Trailduster | 400/6.6 V8 | |
| 1963 | Chrysler | New Yorker | 413/6.7 V8 | |
| 1963 | Chrysler | New Yorker | 426/7 V8 | |
| 1959 - 1960 | Chrysler | Newport | ||
| 1962 - 1964 | Chrysler | Newport | 413/6.7 V8 | |
| 1963 | Chrysler | Newport | 426/7 V8 | |
| 1959 - 1965 | Chrysler | Town & Country | 413/6.7 V8 | |
| 1963 | Chrysler | Town & Country | 426/7 V8 | |
| 1968 - 1974 | Chrysler | Town & Country | 440/7.2 V8 | |
| 1963 - 1964 | Dodge | 330 | 426/7 V8 | |
| 1974 | Dodge | B100 Van | 440/7.2 V8 | |
| 1970 - 1971 | Dodge | Challenger | 440/7.2 V8 | |
| 1970 - 1971 | Dodge | Challenger | 426/7 V8 | |
| 1963 - 1964 | Dodge | 440 | 426/7 V8 | |
| 1974 | Dodge | B200 Van | 400/6.6 V8 | |
| 1974 | Dodge | B200 Van | 440/7.2 V8 |
Specs:
| Brand | Mr. Gasket |
|---|---|
| Emission Code | 5 |
| Engine | Chrysler Big Block B/RB |
| Engine | Chrysler Hemi (Gen II) |
| Material | Silicone |
| Product Type | Rear Main Seal |
| Rear Main Seal Style | Two Piece |
| Warranty | Limited 90 Day |
| Weight | 0.1 |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.4 ★★★★★
Based on 759 reviews
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Product Reviews
★★★★★ 5
Excellent pillow case
Color: Gray, Size: Standard (20" X 26"), Color: Gray, Size: Standard (20" X 26")
I bought this Luxear from pillowcase a few days ago and I’m very happy with it.
The standard size fits my pillows perfectly, and the gray color looks modern and goes well with my bedding .
I love it because It has two sides: one with cooling fabric that really feels fresh to the touch (perfect for hot nights), and the other side made of soft cotton, which feels cozy and comfortable.
After just a few days of use, I already notice the difference.
I sleep much more comfortably and no longer wake up feeling too warm.
The material feels high quality and durable. It doesn't have any strange smell which I love from the first moment
Definitely a great purchase!
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Reviewed in the United States on October 6, 2025
★★★★★ 5
Finally sleeping through the night without waking up drenched
I was dealing with night sweats almost every night. Waking up overheated, flipping my pillow over constantly, just uncomfortable and restless. It was starting to mess with my sleep in a real way.
Since switching to this cooling pillowcase (and pairing it with a cooling blanket), it’s been a completely different experience. I’m actually staying cool through the night and not waking up soaked or irritated.
The fabric feels cool to the touch right away and doesn’t trap heat like a regular pillowcase. It’s smooth, comfortable, and still feels good after washing. Not stiff or weird like some “cooling” materials can be.
Is it magic? No. But does it noticeably reduce overheating and help you sleep better? Absolutely.
If you run hot at night or deal with night sweats, this is one of those small upgrades that makes a big difference. I wish I had bought it sooner.
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Reviewed in the United States on March 19, 2026
★★★★★ 5
so far so good
I was surprised at this pair of pillow cases only because the material seemed impossible to be cooling - it's that weird polyester blend. So far I have not awoken feeling sweaty around my face and scalp. I don't recall what I originally paid but I think it is great value for money! If you are sensitive to out of the box smell, I washed mine first and it didn't impede on the efficacy of the cooling!
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Reviewed in the United States on April 28, 2026
★★★★★ 5
It’s like sleeping on a beach in San Vito lo Capo
Italian voice:
I’m a big meaty fella so I put off a lot of heat ya hear. These pillow cases have changed my life. One moment they’re hot and the next you flip them and you’re blasted with a blast of ice cool what it feels like to chew 5 gum feeling capeesh. I would reccomend these pillow cases to even my grandma. If ya wanta get a rest so good that it feels like ya been sleeping with the fishes get these pillow cases, they’re the real deal. Then stop at Pauline’s joint and grab a slice of pizza say Vinnie sent ya. Anyways I gotta go my wife’s cooking up a mean lasgna and we’re gonna watch the dodgers. Let me know how these treat ya I guarantee they will change your life. Vinnie out
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Reviewed in the United States on February 15, 2026
★★★★★ 4
Soft "cooling" case.
Yes it is very cool when you lay on it. It doesn't stay cold though. Within a minute or 2 to whatever your temp is.
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Reviewed in the United States on December 25, 2025