ACL Bearings 6B1569H-.25 High Performance Rod Bearing Set for BMW S54B32

The ACL Bearings 6B1569H-.25 is a high-performance connecting rod bearing set engineered specifically for the BMW S54B32 engine. This precision-manufactured bearing set features a .25mm (0.010") oversized design, making it ideal for engines that have been machined or require slightly larger bearings to compensate for crankshaft wear or journal resurfacing.

Key Features:

• Designed specifically for BMW S54B32 inline-6 engine (E46 M3, Z3 M Coupe/Roadster)
• 0.25mm oversized bearings for machined crankshafts
• High-performance tri-metal construction for superior strength and durability
• Advanced polymer coating reduces friction and wear during cold starts
• Precision engineered to exacting tolerances for optimal oil clearance
• Complete rod bearing set for full engine rebuild

ACL Race Series bearings are a popular choice among performance engine builders and motorsports professionals for their proven reliability under high-stress conditions. These bearings feature advanced materials and coatings that provide excellent seizure resistance, improved fatigue strength, and enhanced conformability to compensate for minor surface imperfections.

Application Note: The 0.25mm oversize is typically used when crankshaft journals have been ground undersize or when precise clearance adjustments are needed during a performance rebuild. Always verify proper bearing clearances with plastigage or micrometer measurements during installation.