High-quality Forged Alloy Steel Crankshaft 11217799970 for BMW N57D30 3.0L Diesel Engine

Core Selling Points

High-torque diesel vulnerable overhaul part with stable repeat orders

100% OE precise fit, direct assembly without modification

Compatible Vehicle & Engine Range

• Core matching engine: BMW N57D30 3.0L inline-six turbo diesel engine
• Applicable vehicle series equipped with N57 power unit:
  
  
  3 Series F30/F31, 5 Series F10/F11, 7 Series F01/F02, X3 F25, X5 E70/F15, X6 E71/F16

Reinforced heavy-duty anti-fatigue forged structure

1. Integrated high-strength alloy steel forging, overall quenching and tempering heat treatment, outstanding anti-bending and anti-fatigue performance to bear long-term large torque of six-cylinder diesel
2. Journal surface high-frequency quenching nitriding treatment, high surface hardness, effectively prevent journal scratch and bearing eccentric wear
3. Full precision internal oil galleries, evenly deliver lubricating oil to all main and rod journals to avoid dry friction ablation
4. Integrated front timing gear with accurate tooth profile, stable power transmission without tooth breakage or timing deviation
5. Smooth polished rear sealing flange to reduce rear crankshaft oil seal leakage; factory pre-calibrated dynamic balance to eliminate high-speed engine vibration

Recover original six-cylinder diesel low-speed pulling power

Fully resolve typical crankshaft failure faults

• Continuous loud knocking impact sound from engine crankcase after startup
• Obvious vehicle shaking during acceleration and uphill driving
• Dashboard oil pressure warning light keeps lighting up persistently
• Scratched journal surfaces accelerate wear of main and connecting rod bearing shells
• Fatigue cracks on counterweights bring hidden danger of crankshaft fracture and engine stall
• Worn timing gear teeth trigger ECU engine timing malfunction fault codes

Rigorous multi-stage factory testing & sufficient spot stock