The 3957912 Valve Stem Seal ensures reliable performance for Cummins engines ISBE, QSB, ISC, QSC, ISL, QSL, B3.3, B3.9, B4.5, B5.9, B6.7, C8.3, NH, and NT855. Engineered for durability and an optimal fit in demanding applications.
Condition:New / OEM Quality
Free worldwide shipping · 3–15 days.png){kind=icon}
