BMW For BMW 2019.07- N63 S63 Golden Alloy Crankshaft N63 Crankshaft 11217572875 11217620981 For Bmw 550i 650i – OEM 11217572875

Product Overview: Engineered for BMW N63 S63 engines, this forged steel and cast iron crankshaft is a direct-fit replacement component built to original equipment dimensions. Every unit is machined to factory dimensions so it can replace a fatigued, scored or bent original crankshaft as a straightforward bolt-in component.

Key Features: Each crankshaft is CNC-machined to original equipment dimensions, controlling main and rod journal diameters, journal run-out, stroke and thrust surfaces. The journals are ground, hardened and micro-polished so the bearing shells receive a consistent oil film and run quietly from the first start. Consistent production tolerances mean the part can be fitted without the trial-and-error often associated with low-grade replacements. The finished component is inspected and packed to protect its machined surfaces during transport and storage.

Vehicle Compatibility: This part is supplied for the engine applications detailed in the compatibility data, and the original component should be identified before ordering. Because several production revisions share the same basic casting or forging, always confirm the engine code, casting marks and original reference number against the failed component before ordering.

Specifications: Key specifications: engine code N63 S63; cylinder configuration V8; material 4340 Forged Steel / High Strength Cast; size STD; condition New; warranty 12 Months, 12 Months. Measured characteristics include stroke 88.3mm, main journal diameter Standard and rod journal diameter Standard.

OEM / Reference Numbers: This part is cross-referenced to 11217572875, 11217620981 and 11212222005. Match the numbers above against the markings on the removed part to be certain of correct identification.

Applications: It is suited to engine rebuilds, in-frame overhauls, fleet servicing and the repair of engines that have suffered bearing seizure or crankshaft damage. It suits passenger cars, light commercial vehicles and, where listed, industrial or agricultural machinery powered by the relevant engine.

Benefits / Replacement Information: Replacing a worn or damaged crankshaft restores smooth rotation, corrects vibration and bearing noise, and helps recover lost oil pressure. It removes the cost and downtime of reconditioning an original shaft, since the replacement arrives ready for installation in standard size.

Installation or Fitment Notes: Prior to installation, verify the reference number, measure all journals and inspect the block and bearing bores for wear or distortion. Use new bearing shells, set clearances with plastigauge or a bore gauge, and torque the main and connecting rod bolts to the manufacturer's sequence and figures. Fitting is best performed by a qualified mechanic using the manufacturer's specified clearances and tightening values. Keep the journals protected until the moment of assembly, and handle the shaft only with clean gloves to avoid surface damage.