Precision-Engineered Crankshaft Bearings for BMW N63/N63B44 4.4L V8 Engines
High-Grade Material Construction
Manufactured with premium alloy steel backing and advanced aluminum-tin overlay for superior fatigue resistance and load capacity. Multi-layer precision coating ensures optimal oil retention and reduced friction under extreme temperatures.
Exact OEM Replacement Specs
Direct-fit replacement for crankshaft main/connecting rod bearings (STD/+0.25/+0.5mm sizes included). Laser-etched size markings prevent installation errors. Matches BMW OE part numbers 11217576757/11217576760/11247617338/11247617339.
Performance-Optimized Design
Engineered for turbocharged N63/N63B44 engines with reinforced edges to withstand high combustion pressures. Micro-groove surface finish enhances hydrodynamic lubrication during cold starts and high-RPM operation.
Bulk Purchase Advantage
Global wholesale pricing with volume discounts for repair shops/tuner studios. Ships in OEM-grade packaging with anti-corrosion coating. Compatible with 2008-2018 BMW X5/X6 50i, 550i/750i models.
Industrial-Grade Durability
ISO 9001-certified production with ultrasonic cleaning and 100% dimensional inspection. Outperforms aftermarket alternatives in extended drain interval testing (300+ hours at 150°C).






























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11217576757 11217576760 11247617338 11247617339 Crankshaft Main and Conrod Bearings for BMW N63 N63B44 4.4L V8 STD +0.25 +0.5MM
$196$265.21-26.1%
Model Number:
11247617339
N63B44 4.4L V8
N63
11217576763
11217576757
11247617338
11217576760
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