Upper Main Bearings Only - 24pcs.

The Upper Main Bearings Only - 24pcs set by MAHLE ORIGINAL/CLEVITE is a precision engine component replacement kit engineered for operators who demand OEM-grade reliability in critical machinery. Whether you're rebuilding a high-performance engine, maintaining fleet vehicles for tactical operations, or servicing heavy equipment in demanding field conditions, this bearing set delivers the durability and exacting tolerances required in professional-grade applications. MAHLE ORIGINAL/CLEVITE bearings are the choice of military mechanics and law enforcement technicians who cannot afford bearing failure during deployment or emergency response.

Upper main bearings are load-bearing components that support the crankshaft within the engine block, managing extreme pressures and rotational forces in both petrol and diesel engines. This 24-piece set provides complete upper bearing coverage for full-engine rebuilds, ensuring uniform material composition and fatigue resistance across all bearing surfaces. MAHLE's proprietary steel alloys and precision manufacturing process—developed through decades of military and commercial engine applications—guarantee consistent bore tolerances and dimensional accuracy that eliminate micro-movement and premature wear. The bearings' thin-wall design maximizes oil flow and heat dissipation, critical factors for sustained high-performance operation in field conditions where cooling systems may be compromised or load cycles are unpredictable.

Tactical operators, maintenance units, and equipment technicians rely on this bearing set for complete engine restoration in vehicles that must return to duty without failure. Installation requires standard engine rebuild procedures and torque specifications per manufacturer manuals; these bearings are compatible with engines requiring upper main bearing replacement and are suitable for both stock and modified engines operating within OEM specifications. The 24-piece configuration supports engines with up to twelve main bearing positions when using complete bearing sets. Proper installation—including bore cleaning, correct bearing orientation, and crankshaft clearance verification—ensures optimal performance and extended service life in the field.