A-303436926-AI Gasket, Head Cover
A-303436926-AI Gasket, Head Cover
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One New Aftermarket Replacement Head Cover Gasket (Rocker Lever Cover Seal) for Cummins Diesel Engines
This aftermarket replacement head cover gasket (also known as a rocker lever cover seal or valve cover gasket) seals the rocker lever cover on Cummins 6C, 6CT, 6CTA, 6CTAA, B Series, C Series, ISB, ISC, ISL, and QSB diesel engines. A properly sealing rocker cover gasket prevents oil leaks from the top of the engine and helps maintain clean, reliable engine operation in agricultural, construction, and heavy-duty truck applications.
Compatible Engines
Cummins: 6C 8.3L, 6CT 8.3L, 6CTA 8.3L, 6CTAA, B Series, C Series, ISB, ISC, ISL, QSB
Compatible Equipment (Selected Applications)
Fits Allis Chalmers: 9755, 9765, 9775, DT160
Fits Case: Wheel Loaders 721, 721B, 721C
Komatsu: Wheel Loaders WA320-3L, WA320-3MC
Replaces Part Number(s):
3905449
Aftermarket Interchange Numbers
Interstate-McBee M-3905449; FP Diesel FP-3905449; PAI 131420; Maxiforce (replaces 3905449)
New aftermarket replacement part - not remanufactured, not used.



