ACL 4B1510H-STD Rod Bearing Set for BMW B48 / Mini F55-57 2.0 L Turbo Engines

Vehicle Fitment

• BMW B48 2.0 L inline-4 turbo engines (e.g., F22 230i, A90 Supra); Mini F55/F56/F57 models with same engine platform

Features

• ACL Race Series tri-metal construction for motorsport-grade durability
• High-strength overlay plate enhances fatigue resistance
• Hardened steel backing ensures lining stability under load
• Increased crush design for precise bearing seating
• Eliminates flash plating for improved heat dissipation
• Optimized eccentricity to promote consistent oil film at high RPM
• Tight, consistent wall tolerances ensure reliable oil clearance
• Enlarged ID chamfers to accommodate performance crankshaft fillets

Specifications

• Size: Standard (STD)
• Half Type: Identical halves (1 pair per set)

Included Components

• 2x Connecting Rod Bearing Halves (one pair)

Product Description

The ACL 4B1510H-STD Race Series Rod Bearing Set is engineered specifically for high-performance BMW B48 2.0 L turbo engines - such as those found in the 230i and A90 Supra - as well as Mini F55/F56/F57 models sharing the same engine platform. Its tri-metal race-grade construction, hardened steel backing, and optimized overlay design deliver exceptional wear resistance and strength under aggressive, high-RPM conditions.

Ideal for tuners, track-day builds, and performance-focused street applications, these bearings ensure precise seating and efficient lubrication, thanks to tight housing tolerances and enhanced thermal conduction. Fitment is confirmed for BMW B48 and Mini F55/56/57 platforms; other applications remain unverified at the time of this listing.