One-stop Shopping Forged Alloy Steel Crankshaft 11217803479 for BMW N47D20 Diesel Engine

Core Selling Points

High-load diesel overhaul core part for integrated one-stop procurement

100% OE precise fit, direct assembly without modification

Compatible Vehicle & Engine Range

• Core matching engine: BMW N47D20 2.0L four-cylinder diesel engine
• Applicable models equipped with N47D20 power unit:
  
  
  1 Series F20/F21, 3 Series F30/F31/F34, 5 Series F10/F11, X1 E84/F48, X3 F25, X5 E70

Reinforced heavy-duty wear-resistant forged structure

1. One-piece high-strength alloy steel forging with overall quenching & tempering heat treatment, excellent anti-bending and anti-fatigue performance to withstand long-duration diesel high torque
2. Journal surface high-frequency quenching nitriding treatment, high surface hardness to effectively avoid journal scratches and eccentric wear of bearing shells
3. Complete precision internal oil galleries, evenly supply lubricating oil to all journals to eliminate dry friction ablation risk
4. Integrated front timing gear with precise tooth profile, stable power transmission without tooth stripping or timing deviation faults
5. Mirror-polished rear sealing flange to reduce rear crankshaft oil seal leakage; factory pre-calibrated dynamic balance to suppress high-speed engine vibration

Restore stable low-speed diesel torque performance

Fully resolve typical crankshaft failure faults

• Continuous loud knocking impact noise from engine crankcase after startup
• Obvious vehicle shaking during acceleration and uphill driving
• Dashboard oil pressure warning light stays on persistently
• Scratched journal surfaces accelerate wear of main and connecting rod bearing shells
• Fatigue cracks on counterweights create hidden risks 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