What is the primary function of valve stem seals?

Valve stem seals prevent oil from leaking down the valve stem into the combustion chamber. This helps reduce oil consumption, prevent blue smoke from the exhaust, and keep spark plugs clean.

Why is Viton a good material for valve stem seals?

Viton is known for its excellent resistance to high temperatures and aggressive fluids like engine oil. This durability helps the seals last longer and maintain their sealing properties under demanding engine conditions.

Does this kit include everything needed to replace the seals on a V8 engine?

This kit contains 16 valve stem seals, which is typically enough for most V8 engines. However, always confirm your specific engine's requirements and check if any additional installation tools or hardware are needed for your application.

Specifications

Brand: Cometic Gasket
Part #: 3066V1-16

Cometic 11/32in x .563in x .470in x .690in Viton Ring & Band Valve Stem Seal - 16 Pack

Name: Cometic 11/32in x .563in x .470in x .690in Viton Ring & Band Valve Stem Seal - 16 Pack
Brand: Cometic Gasket
SKU: cometic-gasket-cometic-11-32in-x-563in-x-470in-x-690in-viton-ring-band-valve-ste-t14-4337217
Price: 41.77 USD
Availability: BackOrder

$41.77

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Cometic 11/32in Viton valve stem seal kit (16 pack). Essential for preventing oil burn and maintaining engine health.

Key Features

Fits 1988-1995 Ford Bronco, E-Series, F-Series, and Mustang models.
16-pack of valve stem seals.
Made from Viton material for heat and oil resistance.
Features a positive ring and band design for secure fitment.
11/32in stem diameter, .563in outer diameter, .470in seal body diameter, .690in band diameter.

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About this part

Product Details

When you're rebuilding the top end of an engine, replacing the valve stem seals is a critical step. This set from Cometic Gasket includes 16 Viton valve stem seals, sized at 11/32in stem diameter, with a .563in outer diameter, a .470in seal body diameter, and a .690in band diameter. Viton is a durable material that holds up well to heat and oil, making it a solid choice for these seals.

These seals feature a positive ring and band design, which helps ensure they stay securely in place on the valve guide. This is important because a loose seal can allow oil to seep past the valve and into the combustion chamber, leading to oil burning and fouled spark plugs. This pack of 16 is suitable for most V8 engines, and fits a range of Ford vehicles like the Bronco, E-Series vans, F-Series trucks, and the Mustang from the late 80s through the mid-90s.