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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.
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- Delivery to the USA:
- Standard Shipping : 3-10 business days
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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
4.6 ★★★★★
Based on 117 reviews
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Product Reviews
★★★★★ 5
Easy to Install and Looks Great
Color: White, Size: 15.7 Inches
These floating shelves are a great addition to my daughter room space! They were very easy to install, and the instructions were clear and straightforward. The material feels solid and durable. I also really appreciated that the package included all the necessary hardware and materials, which made the setup even more convenient.
They look great on the wall and serve their purpose perfectly. Highly recommend!
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Reviewed in the United States on April 9, 2026
★★★★★ 5
Nice decorative shelves
Color: White, Size: 15.7 Inches, Color: White, Size: 15.7 Inches
Love these shelves! Nice, sturdy and decorative!
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Reviewed in the United States on May 29, 2026
★★★★★ 3
Quality Assurance Lacking
Color: White, Size: 15.7 Inches
The first set I ordered was great; super easy to install, no issues. The second set I ordered the holes on the bottom of the shelves did not match up with the holes on the bar that secures the shelves to the wall so it was impossible to attach the shelves correctly. I'm still trying to figure out a solution.
TO SUMMARIZE: First set perfect; second set unusable
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Reviewed in the United States on May 2, 2026
★★★★★ 5
Solid Floating Shelves 🛠️🏠
Color: Black, Number Of Shelves: 4, Size: 15.7in
I have installed four sets of the black floating shelves in my office. They are made of high quality materials, featuring a sophisticated black woodgrain finish with a natural texture. Supposedly, each unit can handle up to 22 pounds, though I would not recommend testing that limit with your vintage bowling ball collection if you value your flooring. They are awesome.
The value is good for a set of two. Each shelf measures 22x7x1 (56x17x3 cm) inches, providing a decent amount of storage for books or decor. The installation was straightforward since the hardware for multiple wall types was included. They work well in the kitchen for spices or in the bedroom for personal belongings.
One tip for a secure fit: use a level during installation and make sure the bracket is flush against the wall before sliding the shelf on, or your photos might look like they are sliding off a mountain 📐
These shelves offer a clean, modern look and stay stable once mounted correctly. They are a practical choice for adding functional display space to any room 🖼️
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Reviewed in the United States on May 4, 2026
★★★★★ 5
Good looking shelves and easy install - skip the included drywall anchors
Color: Black, Number Of Shelves: 2, Size: 22in
I installed these shelves in a bedroom to get things off my dresser and some decor. Once mounted they look really nice. The black finish looks clean and modern and they blend in well with the room.
Installation was pretty straightforward. The metal bracket mounts to the wall first and then the shelf slides over the bracket. As long as you take your time lining things up it’s a simple project.
One thing I strongly recommend is not using the white plastic self-drilling drywall anchors that come with the kit. I’ve used that style before on other projects and they tend to strip out easily and leave larger holes in drywall. I used better anchors instead and the shelves mounted much more securely.
The rest of the hardware worked fine and once installed the shelves feel solid and hold items well.
Pros
- Clean modern look
- Easy installation
- Feels solid once mounted
- Good size for books or decor
Cons
- The small level included isn’t very accurate — use your own level
- One of the metal brackets was slightly bent out of the box but straightened out easily
Helpful tip:
Use your own level and better drywall anchors if you have them. It makes installation easier and the shelves will mount much more securely.
Final thoughts:
For the price these are nice looking floating shelves that install easily and work well for light storage and decor.
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Reviewed in the United States on March 13, 2026