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  See more parts for INFINITI G20
Select the year of your INFINITI G20:
Supertech 7mm Viton Valve Stem Seal Set of 8 for Infiniti G20, Nissan 1989-2002 - VS-N7E-8

If you're diving into the world of performance upgrades, you know the little things can make a huge difference. Supertech intake valve seals are one of those unsung heroes in your engine setup. Crafted from a high-quality rubber compound, these seals are built to withstand the pressures of a spirited drive. And if you're looking at the exhaust side, you’ll appreciate the special high-temperature compound that amps up durability. Trust me, these seals are the final piece you need to really get your valvetrain singing.

Here’s the deal: you get a set of 8 seals that are designed with precision to fit your engine just right. They’re not just about fitting in; they help you squeeze out every last bit of power from your setup. I’ve seen too many builds suffer from leaky seals, and let me tell you, it’s not pretty. With these bad boys, you can expect years of worry-free performance.

Now, let’s get into some details that matter. The seals have a guide outer diameter of 11mm (or .435 inches) and a seal outer diameter of 14mm (.550 inches). They’re made from Viton, which is known for its heat and chemical resistance, making them perfect for both intake and exhaust positions. Plus, they come with a 7mm diameter that fits snugly where you need it most. If your current seals are leaking, it’s time to swap them out.

These seals are compatible with a range of Nissan and Infiniti models, so if you own one of these cars, you’re in luck:

  • Infiniti G20 (1991-2002)
  • Nissan 180SX (1991-1999)
  • Nissan Silvia 240SX S13 (1989-1994)
  • Nissan Silvia 240SX S14 (1995-1998)
  • Nissan NX (1991-1993)
  • Nissan Pulsar (1991-1994)
  • Nissan Sentra (1991-2001)
  • Nissan Silvia S15 (1999-2002)
  • Nissan Skyline (1989-2002)

So, if you're ready to give your engine the love it deserves, consider picking up a set of these Supertech valve seals. They’re a small investment for a big payoff in performance and reliability.

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Vehicle Make/Model
INFINITI G20 1991-1996, 1999-2002 Base
INFINITI G20 1994-1996, 1999-2002 T
Nissan 240SX 1989-1990 XE
Nissan 240SX 1989-1998 SE
Nissan 240SX 1989-1993, 1995-1998 Base
Nissan 240SX 1991-1992, 1997-1998 LE
Nissan NX 1991-1993 XE
Nissan NX 1991-1993 SE
Nissan Sentra 1991-2001 GXE
Nissan Sentra 1991-1993 Classic
Nissan Sentra 1991-1994 SE-R
Nissan Sentra 1991-2001 XE
Nissan Sentra 1991-1994 E
Nissan Sentra 1991-1994, 1998-2001 SE
Nissan Sentra 1993, 1995-1998 Base
Nissan Sentra 1994 Limited Edition
Nissan Sentra 1995-1998 GLE
Nissan Sentra 1996-2000 GSX
Nissan Sentra 1996-2000 GSS
Nissan Sentra 1996-2000 GST
Nissan Sentra 2001 CA

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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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