KIBBLEWHITE Valve Guide Seal 71015-4

Valve guide seals are critical to engine longevity—they prevent oil from seeping past the valve stem and into the combustion chamber, which causes blow-by, smoking, and accelerated wear on your rings and cylinder walls. The KIBBLEWHITE 71015-4 delivers OEM-grade sealing with the precision fit serious builders and engine shops depend on. Whether you're rebuilding a street engine or prepping a race motor, these seals ensure clean, reliable operation without compromise.

KIBBLEWHITE has been manufacturing valve train components in the U.S. for decades, and this guide seal reflects that commitment to American-made quality and tight tolerances. You'll get consistent, repeatable results across your entire valve job.

• Stem diameter: 5/16"
• Guide O.D.: .420"
• Quantity: 25-pack or 100-pack
• Material: Precision elastomer
• Made in U.S.A.
• Sold individually per seal
• Seal driver sold separately
• Installation sleeves sold separately