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Ships within 48 hours · Estimated delivery Jul 7 - Jul 12
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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
4.1 ★★★★★
Based on 1736 reviews
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Product Reviews
★★★★★ 1
Seller Stall Tactics
Color: White, Number of Items: 1, Color: White, Number of Items: 1
My chair arrived last Wednesday, but I only assembled it today. It looks overwhelming as you take all of the pieces out of the box, but it is straightforward to assemble. Took me less than 45 minutes start to finish. Assembled, the chair is really nice. Many reviews talk about the incessant squeaking. I'm guessing it has to do with how they assembled the chair. Mine does not make a sound. The seat is very firm, it may be uncomfortable for some people; I'll have a better idea after I use it for awhile. I gave it 4 stars because the plastic lever to raise/lower the chair, the underside broke off in 3 pieces! Fortunately I was able to fit the pieces back, and used liquid Gorilla Glue all over the broken seams. So far it's holding up well. Visually the chair is beautiful.
UPDATED 6/1/20 - I originally gave this chair 4 stars. As you can see in my original post, I took one star off for a crucial piece that was broken inside the box. I read reviews where customers who experienced issues were not getting assistance from the seller. I am now in that same issue. After I initially e-mailed the seller regarding a replacement part for that one piece, they are repeatedly e-mailing me asking me is this part broken, is that part also broken. My last e-mail to them stated that I have explained the issue in detail multiple times and if I am sent one more e-mail asking if another part is broken, I will know this is a stall tactic. I have an e-mail this morning asking if the gas lift is broken. I've contacted Amazon to contact the seller with the understanding that if they stall Amazon as well, a request will be made for a full refund. I am NOT the one to play with when it comes to shady customer service. If I could give negative stars based on the seller alone, I would.
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Reviewed in the United States on May 27, 2020
★★★★★ 5
Well made value chair
Color: Black, Color: Black
Great value and well constructed. Easy to assemble. It’s very light and maneuverable. It’s reasonably comfortable for occasional use although I would prefer something with more support if I were using this every day. For my needs, however, it’s perfect. Adjustments are easy – especially height, changing from tilting to rigid. I also appreciate the swing up arms, which was a feature that I particularly liked with this chair.
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Reviewed in the United States on March 19, 2026
★★★★★ 5
Comfortable and Affordable
Color: Black
I normally dislike chairs like this, but with the budget I had I had to go with something more affordable. It is perfect and love how the handles go up to make a little bit more flush with the desk giving me some more room. The cushion is amazing, lumbar support is perfect for me. Very stable and I sometimes almost catch myself reclining back and wanting to fall asleep. Quality sturdy materials make it easy to attach any additional neck accessories to the chair. 10/10 would recommend.
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Reviewed in the United States on April 2, 2026
★★★★★ 4
Comfortable and Stylish Office Chair
Color: Black
The NEO Chair Office Desk Chair Computer High Back is a great addition to my workspace. It was easy to assemble and feels sturdy once put together. The high back provides good support, especially during long hours at my desk. The cushioning is comfortable, and the chair rolls smoothly without any issues. Overall, it looks professional and offers solid comfort for the price.
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Reviewed in the United States on February 28, 2026
★★★★★ 5
Perfect for College Students!
Color: Grey
I first bought this chair back in August of 2023. I used it nearly everyday for several hours. The chair just broke recently- the metal frame bent on the bottom of the chair (probably due to long term sitting and leaning to one side). This a great chair for college students looking for a more affordable but comfortable chair. The wheels move nice and smooth, the arm rests move up and down, and the back mesh of the chair is supportive, comfortable and breathable. To me, the seat of the chair is slightly bigger than a normal desk chair. It reclined decently far back and had a wide range of height adjustments. I just reordered this chair because I love it so much! I recommend this for anyone looking for a affordable, but comfortable desk chair!
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Reviewed in the United States on January 6, 2026