High-quality crankshaft 1121 7799 970 for BMW N57D30
Price:
294USD
MOQ:
1pcs
Delivery Time:
3-7days
Brand:
Boigevis
Product Description
High-quality Forged Alloy Steel Crankshaft 11217799970 for BMW N57D30 3.0L Diesel Engine
This premium heavy-duty forged alloy steel crankshaft with OE number 11217799970 is the core rotating power component matched for BMW N57D30 inline-six diesel engine. It is a high-demand engine overhaul spare part with steady bulk purchasing demand, widely stocked by professional BMW diesel repair garages and cross-border auto parts wholesalers.
Core Selling Points
High-torque diesel vulnerable overhaul part with stable repeat orders
Crankshafts are key failure-prone components for N57D30 high-torque diesel engines. Original crankshafts will suffer journal scoring, fatigue cracks, bending deformation and timing gear tooth wear under long-term heavy load, off-road vibration and sustained high torque output. Damaged crankshafts bring continuous loud knocking noise from engine lower block, violent vehicle shaking, constant low oil pressure warning, rapid bearing shell ablation and hidden engine lock-up risk. Repair shops and overseas export distributors place recurring bulk orders all year round, featuring fast inventory turnover and stable profit space for dealers.
100% OE precise fit, direct assembly without modification
Produced strictly in line with BMW OEM standards: overall forging dimension, main journal & connecting rod journal diameter, internal lubricating oil passage layout, front timing gear tooth profile, rear sealing flange bolt hole position and factory dynamic balance parameters fully match genuine 11217799970. Interchange equivalent OE codes are available for cross reference. No cutting, grinding or straightening correction needed during engine rebuild, perfectly install into N57D30 cylinder block and greatly cut engine disassembly & overhaul labor hours.
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
- 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
- Journal surface high-frequency quenching nitriding treatment, high surface hardness, effectively prevent journal scratch and bearing eccentric wear
- Full precision internal oil galleries, evenly deliver lubricating oil to all main and rod journals to avoid dry friction ablation
- Integrated front timing gear with accurate tooth profile, stable power transmission without tooth breakage or timing deviation
- 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
Converts piston linear reciprocating motion into rotational power output, maintains stable strong low-speed torque during acceleration, climbing and full-load driving. Eliminate abnormal knocking and body vibration caused by damaged original crankshaft, stabilize engine lubrication pressure, reduce cylinder liner and piston abrasion, fully restore the powerful output and fuel-saving performance of N57D30 diesel engine.
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
Each crankshaft undergoes dynamic balance calibration test, salt spray anti-corrosion test, torsion fatigue durability test, journal hardness inspection and oil passage pressure tightness test before delivery, compliant with IATF 16949 international automotive quality standards. Mass ready stock supports mixed one-stop bulk procurement with crankshaft bearing shells, piston assemblies, timing kits, oil pumps and complete N57D30 engine overhaul kits. Custom neutral packaging and private label OEM customization services are available for cross-border wholesale buyers.
Similar Products
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Boigevis Trading (guangzhou) Co., Ltd.
Location
A012, Liyuan Plaza, Yongfu Road, Yuexiu District, Guangzhou City, Guangdong Province, China
Contact Person
Jack