3347569 Cummins Crankshaft For KTA19 QSK19 Engines

Product Overview:

3347569 is a heavy-duty service main crankshaft for all operating conditions. It is made of one-piece closed die-forged SAE4340 chromium-molybdenum steel and features multiple technical upgrades including reinforced fillets, thickened counterweights, deeper wear-resistant hardened layers, as well as optimized oil passages and mounting structures. It delivers higher strength, extended wear service life.Meanwhile, it is universally compatible with all K19 engine models and suitable for various heavy-duty applications such as power generation, mining, oilfield and marine industries.

3347569 crankshaft Specification:

Ultra-concise Key Features

✅SAE4340 closed-die forged steel with continuous grain flow, high torsional fatigue resistance, anti-fracture for QSK19 high-pressure operation

✅ Enlarged smooth fillets + induction hardening & cold rolling, less stress concentration, anti-crack under mining/oilfield alternating loads

✅Deep-hardened & nitrided journals, superior wear/corrosion resistance, longer overhaul cycle, avoids bearing seizure

✅Optimized thick counterweights + dual dynamic balancing, cuts vibration and wear of bearings, oil seals & dampers

Applications:
✅Generator Sets: KTA19-G1/G2/G3/G4 300–500kW prime & standby gensets

✅Mining Equipment: Mining haul trucks, bulldozers, large loaders, fracturing trucks

✅ Marine Power: Main & auxiliary engines for commercial fishing vessels, work boats

✅Heavy Construction Machinery & Oilfield Drilling Power Units

Why Choose Us?

✅100% genuine Cummins CCEC crankshafts with quality guarantee

✅Competitive wholesale pricing for authorized distributors

✅Fast 3‑15 day lead time with worldwide shipping

✅One‑stop sourcing for all Cummins engine parts

✅Professional technical support and long‑term cooperation