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  See all Engine products
Supertech 7mm Stem 10.6mm Guide OD Valve Stem Seal for Racing Applications - VS-N6.6E

If you’re diving into the world of performance engines, you’ll want to pay attention to the Supertech intake valve seals. These aren’t just any seals; they’re crafted from a high-quality rubber compound that really stands up to the heat and pressure of high-performance driving. And if you’re considering exhaust applications, the special high-temperature compound they use is a game changer. It’s designed for durability, which is something you’ll appreciate when you’re pushing your engine to its limits.

Supertech has built a solid reputation in the racing community, providing top-notch valves and valve train components that cater to just about every type of motorsport you can think of—whether it's drag racing, rally, or road racing. They really get what it means to push performance boundaries, and their products reflect that. If you’re looking for something specific and can’t find it in their lineup, don’t sweat it. They’re open to custom manufacturing solutions tailored just for you, which is pretty cool if you have unique needs.

To give you an idea of what you’re getting, check out the VS-N6.6E model. It’s a Supertech Single valve stem seal with a 7mm stem and a 10.6mm guide OD. It fits snugly and performs like a champ, keeping your engine running smoothly under pressure.

Just a heads up: the images you see are for marketing purposes, so the actual product might look a bit different. But trust me, the quality and performance are what really matter.

Other Part Numbers:
Supertech #sptVS-N6.6E

Proposition 65

⚠ WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

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Who is Supertech?

Supertech is a company located in Silicon Valley San Jose, California. It is the place where companies with the most cutting-edge technology are located. It allows Supertech to gain access to the latest technology that helps them create high-quality products.  Supertech is known for manufacturing some of the best aftermarket internal engine parts in the industry. Today, they are considered the leading brand in their market segment.

Valve Train Component Experts

With over 30 years of experience, Supertech was able to develop products that meet the demands of their customers. They offer high-performance valves and valvetrain components that are used by many engine builders and tuners everywhere.

Racer’s Brand Of Choice

Supertech provides the motorsport industry with top-notched products for virtually any type of racing discipline. Whether it’s Road Racing, Drag Racing, or Rally, they have the right parts for you. Each piece is carefully designed and manufactured to provide optimum performance and give racers the competitive advantage they need to win championships.

Purchase Supertech Products At Vivid Racing

If you are in the market for high-quality performance parts for your engine, Supertech is the brand for you. The company has always been on edge in creating innovative products that would keep up with the fast-changing automotive trend. Whether for the tracks or the street, Supertech guarantees that you will only get the best products from them. To know more about Supertech, visit Vivid Racing and check out their list of parts that fit your specific needs.



Due to the nature of the application, these parts are sold without any express warranty or any implied warranty of merchantability, or fitness for a particular purpose.

Supertech Performance Inc. shall not, under any circumstances, be liable for any special, incidental or consequential damages, including, but not limited to, damage, or loss of property or equipment, loss of profits or revenue, cost of purchased or replacement goods, or claims of customers of the purchase, which may arise and/or result from sale, installation or use of these parts.

The sole obligation of Supertech Performance Inc., shall be limited only to the products to be found defective, in either workmanship or material, after inspection performed by our company. This Limited Warranty applies only to the original purchaser of the product and only covers the replacement or repair of the product at our election.

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