Genuine 3801261 0.25mm Main Bearing Set for Cummins NTA855 N14 NH855 Engines

Product Overview:

Cummins 3801261 main bearing set is the +0.010 inch (+0.25mm) oversized version, professionally upgraded from standard size 3801260 standard main bearing. It is engineered exclusively for crankshaft journal wear repair and engine overhaul restoration, perfectly matching NT855, NTA855 and N14 series diesel engines.

Key Features:

✅Precision +0.25mm oversized size, perfect fit reground crankshaft journals

✅Durable bimetallic alloy, equal wear & heat resistance to standard bearings

✅Complete set with thrust bearing, easy direct installation

✅Optimized oil grooves for steady lubrication under heavy loads

✅CCEC original spec, stable size and low failure rate

Core Application Scenarios：

✅ Overhaul worn NT855/NTA855/N14 engines

✅ Repair heavy-duty construction machinery

✅Maintain long-running diesel generator sets

✅ Service marine diesel engines

✅Fix oilfield rigs and fracturing equipment

✅ Replace parts for engine refitting & reconstruction

Why Choose Us ?

✅ 100% genuine CCEC quality, stable performance
✅ Strict factory testing, long service life
✅ Fast delivery, bulk order favorable price
✅ Professional matching support