Engineered for reliability, the 3945094 Expansion Plug fits a range of Cummins engines including B3.3, 4B3.9, 6B5.9, B4.5, ISB, QSB, B6.7, F4.5, C8.3, NH, NT855, N14, ISL, ISF, and X15 models. Ensures effective sealing and long-lasting performance.
