OEM-quality Part No. 2881961 Standard Main Bearing Set, cross-referenced with 4999939, 4999940 and 2869805, is designed for Cummins ISZ, QSZ, ISX and QSX heavy-duty diesel engines. Precision-machined from high-grade leaded bronze alloy with a wear-resistant polymer overlay, it delivers exceptional load capacity, friction reduction and long service life, maintaining precise crankshaft-to-engine block clearance for optimal engine performance and reliability.

2881961 Main Bearing(Standard) Set
PN NAME QTY
4999939 MAIN BEARING 7
4999940  MAIN BEARING 7
2869805 CRANKSHAFT THRUST BEARING 4

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