ACL 8B1578H-.025 High-Performance Connecting Rod Bearing Set for 2011-2019 BMW

Vehicle Fitment

• 2011-2019 BMW 550i (N63/S63 V8, RWD)
• 2011-2019 BMW 550i GT (N63/S63 V8, AWD)
• 2012-2019 BMW 650i (N63/S63 V8, RWD/AWD)
• 2012-2019 BMW 750Li (N63/S63 V8, RWD/AWD)
• 2012-2019 BMW M6 (F12/F13, N63/S63 V8, RWD)
• 2012-2019 BMW X5 (N63/S63 V8, AWD)
• 2012-2019 BMW X6 (N63/S63 V8, AWD)

Features

• 0.025 mm (0.001") oversized for precise clearance adjustments
• Trimetal construction with copper, tin, and lead layers
• Designed for high-performance applications
• Suitable for both street and track use
• Direct replacement for OEM bearings
• Enhanced fatigue resistance for increased engine longevity
• Manufactured to exacting tolerances for reliable fitment
• Ideal for high-horsepower builds and racing applications

Specifications

• Part Number: 8B1578H-.025
• Size: 0.025 mm (0.001") oversized
• Material: Trimetal (Copper, Tin, Lead)
• Coating: CT-1 Coating
• Extra Oil Clearance: +0.001"
• Engine Compatibility: N63/S63 V8
• Drivetrain: RWD/AWD
• Platform Compatibility: 550i, 650i, 750Li, M6, X5, X6

Included Components

• 1x Upper Connecting Rod Bearing
• 1x Lower Connecting Rod Bearing
• 1x Upper Connecting Rod Bearing
• 1x Lower Connecting Rod Bearing
• 1x Upper Connecting Rod Bearing
• 1x Lower Connecting Rod Bearing
• 1x Upper Connecting Rod Bearing
• 1x Lower Connecting Rod Bearing
• 1x Upper Connecting Rod Bearing
• 1x Lower Connecting Rod Bearing
• 1x Upper Connecting Rod Bearing
• 1x Lower Connecting Rod Bearing
• 1x Upper Connecting Rod Bearing
• 1x Lower Connecting Rod Bearing
• 1x Upper Connecting Rod Bearing
• 1x Lower Connecting Rod Bearing

Product Description

The ACL 8B1578H-.025 High-Performance Connecting Rod Bearing Set is engineered to provide superior protection and performance for BMW's N63/S63 V8 engines. Featuring a 0.025 mm (0.001") oversized design, these bearings offer enhanced oil clearance, making them ideal for both street and track applications. The trimetal construction ensures optimal strength and fatigue resistance, while the precision-matched design maintains reliable clearances.

This bearing set is a direct replacement for OEM bearings, making it suitable for engine rebuilds and performance upgrades. Whether you're building a high-performance street engine or a track-ready setup, the ACL 8B1578H-.025 bearings provide the durability and reliability needed to withstand the demands of high-output applications.