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Ships within 48 hours · Estimated delivery Jul 17 - Jul 22
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For Your Every Summer RSVP, with Code: SUMMER15
Description
Mr. Gasket Ultra-Seal Valve Cover Gaskets - 5875Overview: 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 |
|---|---|---|---|---|
| 1965 - 1976 | Oldsmobile | 98 | ||
| 1975 | Oldsmobile | 98 | 455/7.5 V8 | |
| 1971 - 1976 | Oldsmobile | Custom Cruiser | ||
| 1975 | Oldsmobile | Custom Cruiser | 455/7.5 V8 | |
| 1968 - 1976 | Oldsmobile | Cutlass | 350/5.7 V8 | |
| 1970 - 1976 | Oldsmobile | Cutlass | 455/7.5 V8 | |
| 1975 - 1976 | Oldsmobile | Cutlass Salon | 455/7.5 V8 | |
| 1976 | Oldsmobile | Cutlass Tiara | 350/5.7 V8 | |
| 1975 - 1976 | Oldsmobile | Cutlass Salon | 350/5.7 V8 | |
| 1976 | Oldsmobile | Cutlass Tiara | 455/7.5 V8 | |
| 1975 - 1976 | Oldsmobile | Cutlass Supreme | 350/5.7 V8 | |
| 1975 - 1976 | Oldsmobile | Cutlass Supreme | 455/7.5 V8 | |
| 1975 | Oldsmobile | Delta 88 | 455/7.5 V8 | |
| 1965 - 1976 | Oldsmobile | Delta 88 | ||
| 1975 | Oldsmobile | Delta 88 | 350/5.7 V8 | |
| 1966 - 1976 | Oldsmobile | Toronado | ||
| 1964 - 1975 | Oldsmobile | Vista Cruiser | ||
| 1965 - 1971 | Oldsmobile | 442 | ||
| 1964 - 1974 | Oldsmobile | Cutlass | ||
| 1967 | Oldsmobile | Cutlass | 330/5.4 V8 | |
| 1967 | Oldsmobile | Delmont 88 | ||
| 1968 | Oldsmobile | Delmont 88 | 350/5.7 V8 | |
| 1965 - 1966 | Oldsmobile | Dynamic 88 | ||
| 1964 - 1967 | Oldsmobile | F85 | 330/5.4 V8 | |
| 1965 - 1966 | Oldsmobile | F85 | 400/6.6 V8 | |
| 1968 - 1971 | Oldsmobile | F85 | 350/5.7 V8 | |
| 1971 - 1974 | Oldsmobile | Cutlass Supreme | ||
| 1964 - 1966 | Oldsmobile | Jetstar 88 | ||
| 1973 - 1974 | Oldsmobile | Omega | 350/5.7 V8 | |
| 1970 | Oldsmobile | F85 | 455/7.5 V8 | |
| 1972 | Oldsmobile | F85 | ||
| 1968 - 1969 | Oldsmobile | Vista Cruiser | 350/5.7 V8 | |
| 1965 | Oldsmobile | Jetstar I | ||
| 1965 - 1966 | Oldsmobile | Starfire |
Specs:
| Application | Oldsmobile V8 |
|---|---|
| Brand | Mr. Gasket |
| Emission Code | 5 |
| Engine | Oldsmobile V8 |
| 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 | 0.31 |
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
4.7 ★★★★★
Based on 18 reviews
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Product Reviews
★★★★★ 5
So will not write down your foot
Size: Medium, Color: (001) Black / Black / Castlerock
I love these socks. They have a little bit of gel on the top of the heel for support in your tennis shoes and so your socks don’t write down. Very good quality.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 6, 2026
★★★★★ 5
Comfy and Stay Put
Size: Medium, Color: (002) Black / Black / Halo Gray
These socks are honestly great. They’re super thin and light, so once you have them on, you kind of forget they’re even there. No bulky feeling in your shoes at all.
The best part is they actually stay on. I hate no-show socks that slide down after five minutes, and these don’t do that. The little grip on the heel really works, so you’re not constantly adjusting them all day.
They’re breathable too, which is nice if your feet run warm. They dry fast and don’t get that gross sweaty feeling. And there’s no annoying seam on the toe, so nothing rubs or feels uncomfortable.
Basically, they’re just comfy, stay put, and don’t cause problems — which is all I want from socks.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 16, 2026
★★★★★ 5
Perfect sucks
Size: Medium, Color: (001) Black / Black / Castlerock
Wonderful socks . The weight is perfect !! These do not slip when in a shoe they stay out !!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 14, 2026
★★★★★ 4
Amazing but quality changed
Size: Large, Color: (002) Black / Black / Halo Gray
Love these socks so much, been buying them for about 4 years now!! Not giving them 5 stars anymore because the quality is different and not as good, durable and thick as before.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 10, 2025
★★★★★ 5
The best no show socks
The only no show socks I have ever found that do not slide down. These are very comfortable and the extra tab on the back provides comfort by keeping shoes from rubbing the back of your foot. The top of the sock also comes up high enough to cushion the top of your foot all while still remaining hidden while wearing tennis shoes or even with my hey dudes.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 30, 2025
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