Description:
The Cummins Valve Stem Seal (Part# 4026791) is a precision-engineered OEM component used in Cummins diesel engines to regulate engine oil passing along the valve stem. By maintaining the correct oil balance, this seal helps reduce oil consumption, minimize exhaust smoke, and protect valves, guides, and combustion components from premature wear.
Features:
Part#: 4026791 (Set Of 4)
Brand: Cummins
Product Type: Valve Stem Seal
Application: Engine valve train
Function: Oil control between valve stem and guide
Material: High-temperature elastomer / OEM composite
Installation Location: Cylinder head – valve guide
Operating Environment: High heat, oil exposure
Compatibility: Cummins diesel engines (varies by model)
Condition: New
Fitment: OEM direct replacement
Brand: Cummins
