What is the main purpose of valve stem oil seals?

Valve stem oil seals are designed to prevent engine oil from entering the combustion chamber through the valve guides. This helps maintain proper compression, reduce oil consumption, and prevent exhaust smoke.

How many seals are included in this set?

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

What size valve stems do these seals fit?

These specific Manley valve stem oil seals are designed to fit 3/8 inch diameter valve stems.

Specifications

Brand: Manley Performance
Part #: 24039-16
UPC: 807298065373

Manley Valve Stem Oil Seal, SEALS-3/8 STEM

Name: Manley Valve Stem Oil Seal, SEALS-3/8 STEM
Brand: Manley Performance
SKU: manley-performance-manley-valve-stem-oil-seal-seals-3-8-stem-t14-881512
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 Valve Stem Oil Seal for 3/8" stems. These seals prevent oil from entering the combustion chamber.

Key Features

Fits 3/8 inch valve stems.
Set of 16 seals for a V8 engine.
Helps prevent oil consumption and smoking.
Manley Performance brand.
Designed for engine rebuilding applications.

⚠️ 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

If you're rebuilding the top end of your engine, you'll need a solid set of valve stem oil seals. This set from Manley Performance is designed for 3/8 inch valve stems, a common size in many performance and stock applications. These seals are crucial for keeping oil out of your combustion chambers, which helps prevent smoking, oil consumption, and fouled spark plugs.

Manley is known for making well-built internal engine components, and these seals are no exception. They are made to handle the rigors of engine operation, ensuring a good seal around the valve stem. When installing, make sure the valve guides are clean and within spec, as a worn guide can cause even the best seal to fail prematurely. This set includes 16 seals, enough for a typical 8-cylinder engine.