What is Viton material and why is it used for valve seals?

Viton is a type of fluoroelastomer known for its excellent resistance to high temperatures, oils, and fuels. This makes it a durable choice for valve stem seals, as it can withstand the harsh environment within an engine's combustion chamber and valve train.

What does it mean that these seals fit an 11/32 inch valve stem?

This refers to the diameter of the valve stem the seal is designed to fit over. An 11/32 inch stem is a common size found in many automotive engines, particularly in performance applications. It's important to match the seal size to your valve stem diameter for a proper fit.

Are these seals sold individually or as a set?

This product listing is for a set of 16 valve stem oil seals, which is typically enough for a standard 8-cylinder engine.

Specifications

Brand: Manley Performance
Part #: 24035-16
UPC: 807298065311

Manley Valve Stem Oil Seal, SEALS11/32 STEM

Name: Manley Valve Stem Oil Seal, SEALS11/32 STEM
Brand: Manley Performance
SKU: manley-performance-manley-valve-stem-oil-seal-seals11-32-stem-t14-881509
Price: 37.59 USD
Availability: BackOrder

$37.59

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Manley Performance valve stem oil seals. Part# 24035-16. Direct fit.

Key Features

Fits 11/32 inch valve stems.
Constructed from durable Viton material for high-temperature resistance.
Helps prevent oil consumption and maintain engine performance.
Designed for reliable sealing in engine builds.
Manley Performance part number 24035-16.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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About this part

Product Details

These Manley valve stem seals are made from a durable Viton material, chosen for its ability to withstand high engine temperatures and resist degradation from oil and fuel. They are designed to fit a 0.343 inch (11/32 inch) valve stem, which is a common size for many performance and stock engine builds. Properly sealing the valve guides is crucial for preventing excessive oil consumption and maintaining consistent engine performance.

When you're rebuilding an engine or just replacing worn valve seals, using well-made components like these Manley seals helps ensure a solid seal around the valve stem. This stops oil from leaking down the guide and into the combustion chamber, which can cause blue smoke on startup and fouled spark plugs. They are a popular choice for builders who want reliable sealing for their engine's top end.