The 3914035 Expansion Plug is designed for durable, precise fitment in 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, ensuring reliable engine performance.
Condition:New / OEM Quality
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