What does the 'SEALS11/32 STEM' designation mean?

This designation indicates that these seals are designed to fit valve stems with a 11/32 inch (0.343 inch) diameter. This is a common size for many engine builds.

Are these seals sold individually or as a set?

These seals are sold in a set of 16, which is typically enough for a standard 8-cylinder engine's intake and exhaust valves.

Manley Valve Stem Oil Seal, SEALS11/32 STEM

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Specifications

Brand: Manley Performance
Part #: 24037-16
UPC: 807298065359

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-t14-881511
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, SEALS11/32 STEM. These seals help prevent oil from entering the combustion chamber.

Key Features

Fits 11/32 inch (0.343 inch) valve stems.
Helps prevent oil from entering the combustion chamber.
Well-built for engine conditions.
Essential for engine rebuilds and top-end work.

⚠️ 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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Product Details

Manley Performance valve stem oil seals are a solid option when you're rebuilding or refreshing your engine's top end. These seals are designed to fit a 0.343 inch (11/32 inch) valve stem, which is a common size for many performance and some stock applications. Their main job is to keep oil from leaking down the valve guide and into the combustion chamber, which helps maintain proper oil levels and prevents excessive smoke from the exhaust.

When you're working on your cylinder heads, replacing these seals is a critical step. They are well-built to handle the heat and pressure inside the engine. Proper installation ensures they create a tight seal around the valve stem, which is key to preventing oil consumption and maintaining engine performance. It's a small part, but it makes a big difference in how your engine runs and how clean its emissions are.