4099004 Crankshaft For Cummins KTA38 QSK38 Engines

Product Overview：

The 4099004 crankshaft is the latest upgraded generation of Cummins K38 KTA38 QSK38 series crankshaft, superseding older PN 3648630, 3630076 and 3630075. It adopts upgraded fillet rolling strengthening and optimized internal oil passage design for superior fatigue resistance and lubrication performance,direct bolt-on fit.Suitable for mining trucks, marine engines, gensets, construction & oilfield machinery.

4099004 crankshaft Specification:

✅New fillet rolling tech: 30% higher fatigue resistance, avoids crank fracture under heavy mining/marine loads

✅Enlarged smooth oil galleries for steady lubrication, less journal wear & longer bearing lifespan

✅One-piece alloy forging + full tempering + journal induction hardening, fits mechanical KTA38 & electronic QSK38

✅Tighter dynamic balance cuts vibration, reduces wear on block, gears and accessories for gensets & marine engines

Application:

✅Mining: 100-ton mining trucks, underground loaders, large bulldozers

✅Generator: KTA38-G land-based generator sets

✅Marine: KTA38-M marine main engines

✅Oilfield: fracturing pumps, large air compressors, stationary industrial power units

Why Choose US?

✅100% genuine Cummins CCEC parts

✅Professional technical support for fitment verification・

✅Competitive wholesale pricing

✅Fast global shipping