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Ships within 48 hours · Estimated delivery Jul 14 - Jul 19
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For Your Every Summer RSVP, with Code: SUMMER15
Description
Mr. Gasket Rear Main Seal - 1965Overview: 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 1976 Oldsmobile Delta 88 455 7. 5 V8 1970 1976 Oldsmobile Cutlass 455 7. 5 V8 1971 1976 Oldsmobile Cutlass
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 - 1976 | Oldsmobile | Delta 88 | 455/7.5 V8 | |
| 1970 - 1976 | Oldsmobile | Cutlass | 455/7.5 V8 | |
| 1971 - 1976 | Oldsmobile | Cutlass Supreme | 455/7.5 V8 | |
| 1970 - 1972 | Oldsmobile | F85 | 455/7.5 V8 | |
| 1968 - 1976 | Oldsmobile | Toronado | ||
| 1970 - 1975 | Oldsmobile | Vista Cruiser | 455/7.5 V8 | |
| 1969 - 1972 | Ford | Custom | 429/7 V8 | |
| 1973 - 1979 | Ford | F-100 | 460/7.5 V8 | |
| 1973 - 1988 | Ford | F-250 | 460/7.5 V8 | |
| 1973 - 1988 | Ford | F-350 | 460/7.5 V8 | |
| 1968 - 1973 | Ford | Thunderbird | 429/7 V8 | |
| 1972 - 1974 | Ford | Thunderbird | 460/7.5 V8 | |
| 1970 - 1973 | Ford | Torino | 429/7 V8 | |
| 1973 - 1976 | Ford | Torino | 460/7.5 V8 | |
| 1968 | Lincoln | Continental | 429/7 V8 | |
| 1968 - 1978 | Lincoln | Continental | 460/7.5 V8 | |
| 1969 - 1976 | Lincoln | Continental | ||
| 1968 | Lincoln | Mark III | 460/7.5 V8 | |
| 1969 - 1971 | Lincoln | Mark III | ||
| 1972 - 1976 | Lincoln | Mark IV | ||
| 1969 - 1973 | Mercury | Colony Park | 429/7 V8 | |
| 1972 - 1974 | Mercury | Colony Park | 460/7.5 V8 | |
| 1973 - 1976 | Mercury | Cougar | 460/7.5 V8 | |
| 1970 - 1971 | Mercury | Cyclone | 429/7 V8 | |
| 1969 - 1970 | Mercury | Marauder | 429/7 V8 | |
| 1971 | Mercury | Cougar | 429/7 V8 | |
| 1969 - 1973 | Mercury | Marquis | 429/7 V8 | |
| 1972 - 1978 | Mercury | Marquis | 460/7.5 V8 | |
| 1970 - 1973 | Mercury | Montego | 429/7 V8 | |
| 1973 - 1976 | Mercury | Montego | 460/7.5 V8 | |
| 1969 - 1973 | Mercury | Monterey | 429/7 V8 | |
| 1972 - 1974 | Mercury | Monterey | 460/7.5 V8 | |
| 1968 - 1969 | Oldsmobile | 442 | 455/7.5 V8 | |
| 1970 - 1971 | Oldsmobile | 442 | ||
| 1968 - 1976 | Oldsmobile | 98 | ||
| 1971 - 1976 | Oldsmobile | Custom Cruiser | ||
| 1975 | Oldsmobile | 98 | 455/7.5 V8 | |
| 1975 | Oldsmobile | Custom Cruiser | 455/7.5 V8 | |
| 1975 - 1976 | Oldsmobile | Cutlass Salon | 455/7.5 V8 | |
| 1976 | Oldsmobile | Cutlass Tiara | 455/7.5 V8 | |
| 1972 - 1978 | Ford | LTD | 460/7.5 V8 | |
| 1973 - 1976 | Ford | Custom 500 | 460/7.5 V8 | |
| 1978 | Ford | E-100 Econoline | 460/7.5 V8 | |
| 1975 - 1980 | Ford | E-250 Econoline | 460/7.5 V8 | |
| 1975 - 1988 | Ford | E-250 Econoline Club Wagon | 460/7.5 V8 | |
| 1975 - 1988 | Ford | E-350 Econoline | 460/7.5 V8 | |
| 1977 - 1988 | Ford | E-350 Econoline Club Wagon | 460/7.5 V8 | |
| 1976 | Ford | Elite | 460/7.5 V8 | |
| 1975 - 1979 | Ford | F-150 | 460/7.5 V8 | |
| 1969 - 1973 | Ford | Country Sedan | 429/7 V8 | |
| 1972 - 1974 | Ford | Country Sedan | 460/7.5 V8 | |
| 1969 - 1973 | Ford | Country Squire | 429/7 V8 | |
| 1972 - 1974 | Ford | Country Squire | 460/7.5 V8 | |
| 1969 - 1973 | Ford | Custom 500 | 429/7 V8 | |
| 1974 - 1976 | Ford | Gran Torino | 460/7.5 V8 | |
| 1974 - 1977 | Ford | Ranchero | 460/7.5 V8 | |
| 1970 - 1976 | Ford | Thunderbird | ||
| 1977 - 1978 | Lincoln | Mark V | 460/7.5 V8 | |
| 1975 - 1978 | Mercury | Grand Marquis | 460/7.5 V8 | |
| 1970 | Ford | Fairlane | 429/7 V8 | |
| 1969 - 1973 | Ford | Galaxie 500 | 429/7 V8 | |
| 1973 - 1974 | Ford | Galaxie 500 | 460/7.5 V8 | |
| 1972 - 1973 | Ford | Gran Torino | 429/7 V8 | |
| 1969 - 1973 | Ford | LTD | 429/7 V8 | |
| 1970 - 1971 | Ford | Mustang | 429/7 V8 | |
| 1969 - 1973 | Ford | Ranch Wagon | 429/7 V8 | |
| 1973 - 1974 | Ford | Ranch Wagon | 460/7.5 V8 | |
| 1970 - 1973 | Ford | Ranchero | 429/7 V8 |
Specs:
| Brand | Mr. Gasket |
|---|---|
| Emission Code | 5 |
| Engine | Ford Big Block |
| Engine | Oldsmobile V8 |
| 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 752 reviews
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Product Reviews
★★★★★ 5
Good size for my pug!
Color: Dentachew 3 Pk
I love how it’s a good size for my pug it is easy for her to play around with. I had stuffed animals for her to play around with but it looked so silly to watch her play with something that is 10 times as big as her 😂. I had to buy her these toys and she seemed so happy when she first got them.
It was so funny and interesting that she had to chew all three toys and decide which one she liked. At first she decided to play with the rope toy and she liked the rope toy, then she got curious with the rubber toys. She has decided that the rubber toys are her favorite and I’ve tried to engage with playing with her with the rope toy. She gets more interactive with the rubber toys! She also looked so relieved while chewing them so that’s a plus!
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Reviewed in the United States on May 16, 2026
★★★★★ 4
Good for Teething puppies
Color: Teething Stick
After getting my fingers chewed and bitten by my new foster - 8 week old Yorkie , I was desperate to find good teething toys. Fortunately this one arrived quickly. Turned out to be very good for teething puppies! Charlie loves this cooling stick. Once it’s frozen, the cold really seems to soothe his sore gums. The icy part doesn’t stay frozen for long, but it works so well that I bought a second one to keep ready in the freezer while he’s working on the first.
Even after it warmed up, he still enjoyed chewing on the soft stuffed part and the tentacles. The product card says not to use it as a chew toy, so supervision is a must, but it held up just fine so far.
Overall, this has been a big help during the teething phase — short-lived when frozen, but very effective while it lasts! And worth every penny to save my fingers from being a chew toy.
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Reviewed in the United States on October 7, 2025
★★★★★ 5
Great for a chewer
Color: Dogwood (Brown), Size: Large (Pack of 1)
My dog loves a hard toy and a durable one. My dog has been chewing on this for months and it is still holding strong. Because it is a hard toy when my dog brings this into another room with a hard floor and drops the toy it can be startling. My dog will choose this toy over others on a daily basis and brings the toy to other rooms.
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Reviewed in the United States on May 19, 2026
★★★★★ 5
Durable
Color: Dogwood (Brown), Size: Large (Pack of 1)
Durable, good chew toy.
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Reviewed in the United States on June 8, 2026
★★★★★ 5
GREAT TOY
Color: Dogwood (Brown), Size: Large (Pack of 1)
My 6m old Shepard Terrier LOVES this toy. He loves chewing on wood and we’ve gotten him all types of chew toys but I’ve never seen any toy keep him this busy and interested. Buy if ur dog chews furniture!!!!
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Reviewed in the United States on June 13, 2026