ACL Main Bearing Set
2017–2020 Toyota 86 / 2022–2024 Subaru BRZ / 2022–2024 Toyota GR86 FA20 Engine
5M8312H-STD
Overview:
The ACL Main Bearing Set is engineered specifically for the FA20 engine found in the Toyota 86 (2017–2020), Subaru BRZ (2022–2024), and Toyota GR86 (2022–2024). Designed to meet the rigorous demands of high-performance driving, this standard size bearing set provides reliable crankshaft support and durability under increased loads. Ideal for enthusiasts and professional builders alike, ACL bearings ensure consistent engine performance and longevity during both street and track use.
Manufactured by ACL, a trusted name in engine components, this main bearing set is a direct replacement that maintains factory tolerances while offering enhanced wear resistance and strength. Whether you are performing an engine rebuild or upgrading your vehicle for motorsport applications, these bearings deliver dependable performance and peace of mind.
Key Features:
ACL’s main bearing set incorporates advanced materials and precision engineering to optimize engine reliability and efficiency. Key features include:
- Standard size bearings designed to OEM specifications for perfect fitment
- High-performance tri-metal construction for superior wear resistance
- Optimized oil clearance to maintain proper lubrication and reduce friction
- Enhanced fatigue strength to withstand high RPM and increased loads
- Precision machined surfaces for smooth crankshaft rotation and reduced vibration
- Corrosion-resistant coatings to extend bearing life in demanding environments
- Compatibility with stock and mildly modified FA20 engines
- Manufactured under strict quality control standards for consistent performance
Construction & Design:
ACL main bearings are constructed using a tri-metal layering process that combines a steel backing with a durable copper-lead alloy and a soft overlay. This design provides excellent conformability and embedability, allowing the bearing to adapt to minor imperfections in the crankshaft surface while protecting it from damage. The materials used ensure high fatigue resistance and long service life, even under the stresses of high-performance operation.
Each bearing is precision machined to maintain tight tolerances, ensuring optimal oil film thickness and minimizing metal-to-metal contact. The standard size configuration matches factory dimensions, making installation straightforward without the need for additional machining or modifications.
Installation & Fitment:
This ACL main bearing set is a direct fit for the FA20 engine in the specified Toyota 86, Subaru BRZ, and Toyota GR86 model years. Installation requires standard engine rebuild procedures, including proper cleaning of bearing surfaces and verification of crankshaft journal dimensions. No modifications are necessary when replacing worn or damaged bearings with this set.
For best results, it is recommended to inspect the crankshaft journals for wear or damage before installation and to use appropriate assembly lubricants during the rebuild process. Professional installation is advised to ensure correct bearing clearance and engine reliability.
What's Included:
- Complete set of standard size main bearings for FA20 engine
- Installation instructions and specifications
Ideal For:
This main bearing set is ideal for automotive enthusiasts, engine builders, and professional mechanics performing maintenance or upgrades on the FA20 engine. It suits those seeking a reliable, high-quality bearing solution for street performance, track days, or motorsport applications where engine durability and smooth operation are critical.
