001AS21149000 MAHLE Thrust Washer, crankshaft

The MAHLE Engine Bearings (MPN: 001AS21149000) are a critical component in the crankcase of engines. They are used in various vehicles, including passenger cars and commercial trucks, where high-performance and durability are essential. The technical benefits include improved engine efficiency and reduced wear on moving parts. Crankshaft bearings are precision components facilitating smooth rotary motion between the crankshaft and engine block. Located within the engine’s main and connecting rod bearing bores, these bearings support significant loads and reduce friction generated by reciprocating piston motion. Typically manufactured from tri-metal or polymer-coated steel, they feature a split design for ease of installation and precise clearance control. Oil grooves and channels within the bearing surface maintain a hydrodynamic oil wedge, preventing metal-to-metal contact. Dimensional accuracy and material hardness are critical for maintaining engine performance and longevity, with variations existing for different engine families and load requirements.