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Ships within 48 hours · Estimated delivery Sep 24 - Sep 29
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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
4.5 ★★★★★
Based on 10 reviews
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Product Reviews
★★★★★ 5
Vibrant backyard umbrella
Size: 9ft, Color: Lake Blue
The umbrella does its job, it tilts so you can position the umbrella to block the sun at all hours. The colors are vibrant and fabric is decent quality, I bought the turquoise this time and dark blue in the past, the fabric keeps cleans. The umbrella isn't heavy, easy to maneuver. This was a replacement for our previous umbrella which broke at the tilt joint, after a very windy day when we forgot to close it, but it lasted over a year and a half so no complaints there.
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Reviewed in the United States on December 6, 2025
★★★★★ 4
Nice Umbrella for the Price
Size: 9ft, Color: Red
Truly surprised at the quality of this umbrella. Great deal for the price. I did see some reviews prior to buying that there were issues with the tilting mechanism/crank so I am giving it a 4 until I have it for more than a few days to see how it all works out.
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Reviewed in the United States on April 27, 2026
★★★★★ 5
Honestly impressed would recommend
Size: 9ft, Color: Beige, Size: 9ft, Color: Beige
I’m honestly really impressed with this patio umbrella! It’s lightweight enough that it was easy to move and set up, but it still feels sturdy and stable once in place. The fabric material feels much nicer than the cheap plastic-like material some outdoor umbrellas use — it looks clean, durable, and gives really good shade.
The color is beautiful and works perfectly with outdoor spaces without looking harsh or too bright. It opens smoothly, provides a large amount of coverage, and has held up great in the sun and wind so far.
Definitely a thumbs up from me — great quality for the price and makes the whole patio area feel more relaxing and put together! ☀️👍
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Reviewed in the United States on May 9, 2026
★★★★★ 5
Brightens up the whole patio!
Size: 9ft, Color: Apple Green
I am so happy with this umbrella! The "Apple Green" color is gorgeous—it’s super vibrant and really makes my backyard feel more tropical and fun.
The crank is smooth and easy to use, so I don’t have to struggle to get it open, and the push-button tilt is a total lifesaver when the sun starts to dip in the afternoon. It feels much sturdier than the one I replaced; the ribs seem solid and it hasn't budged during our usual afternoon breezes.
It provides a ton of shade for our table, and you can tell the fabric is thick enough to actually block the heat. If you want a pop of color and a reliable umbrella that doesn't cost a fortune, this one is perfect!
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Reviewed in the United States on April 7, 2026
★★★★★ 5
High quality. Umbrella crank works smoothly. Love it!
Size: 9ft, Color: Peacock Blue, Size: 9ft, Color: Peacock Blue
This umbrella and rug, both from Amazon, look beautiful on my deck! I'm thrilled with them both! My deck is my favorite happy place! The colors are very impressive. Great price 👍
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Reviewed in the United States on May 23, 2026