3801260 Main Bearing Set for Cummins NT855 N14 NH Engines

peoduct overview：

The 3801260 is a genuine standard-size main bearing set engineered for Cummins heavy-duty diesel engines, including NT855, N14, and NH series. This complete bearing assembly consists of main bearings and thrust washers, designed to support the crankshaft, reduce rotational friction, and maintain stable oil film under extreme working conditions. Manufactured with high-standard bimetallic alloy materials, this bearing set delivers outstanding wear resistance, high-temperature durability, and mechanical fatigue resistance for long-term heavy-load operation.

✅ Triple-layer composite structure ensures great heat resistance and anti-

✅ corrosion performance for long-time high temp operation. -

✅ Accurate dimensional tolerance keeps stable oil film, effectively avoiding bearing damage and shaft wear.

✅ Superior fatigue & impact resistance, ideal for heavy load and frequent start-stop working conditions.

✅ Full set includes 7 main bearings and 4 thrust washers, easy for one-time engine overhaul.

Quick Specs & Applications：

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