BMW B38 B48 Engine Timing Chain 11317504468 for F10 F20 F21 F25 F30 F35 Models 2010-2020

The genuine BMW Timing Chain (Part No.: 11317504468) is a high-precision transmission component engineered for BMW N-series and B-series engines. This critical component ensures precise synchronization between camshaft and crankshaft, delivering efficient and stable engine operation throughout the vehicle's lifespan.

Note: Compatibility may vary by region or model revisions. Verify using VIN or catalogs (e.g., RealOEM). Some diesel engines (e.g., N47) may not be compatible.

• Extended Durability: Longer lifespan than timing belts, typically lasting the engine's lifetime with periodic inspection
• Precision Timing: Ensures accurate synchronization between camshaft and crankshaft to prevent ignition timing errors
• Anti-Stretch Design: Special heat treatment minimizes elongation over time for consistent performance
• Complete Kit Options: Available with tensioners, guides, and sprockets depending on package selection

• Material Forging: High-purity alloy steel shaped via cold/hot forging processes
• Precision Machining: CNC-machined link profiles for perfect gear engagement
• Advanced Surface Treatment: Carburizing or DLC (Diamond-Like Carbon) coating for superior wear resistance
• Rigorous Quality Control: 100% tension testing and magnetic particle inspection to eliminate defects

BMW timing tools (e.g., locking pins) to fix crankshaft and camshaft positions during installation.

1. Mark old chain and gear positions before removal if specialized tools are unavailable
2. Thoroughly inspect tensioners and guides; replace components showing wear
3. Manually rotate crankshaft 2-3 revolutions post-installation to verify no interference
4. Follow repair manual torque specifications strictly, including angle torque for sprocket bolts