King Engine Bearings Main Bearing Set
2013–2020 Subaru BRZ / 2017–2020 Toyota 86 FA20/FB20 Engine
MB5745SI0.5
Overview:
The King Engine Bearings Main Bearing Set is engineered specifically for the Subaru BRZ (2013–2020) and Toyota 86 (2017–2020) equipped with the FA20 or FB20 engines. This high-quality bearing set is designed to provide reliable, long-lasting performance for enthusiasts and professional rebuilders alike. Featuring a bimetal construction with an aluminum silicon base, these main bearings ensure optimal durability and wear resistance under demanding operating conditions.
Ideal for engine rebuilds, upgrades, or repairs, this bearing set helps maintain precise crankshaft alignment and smooth rotational movement, which are critical for engine longevity and performance. Whether you are restoring your vehicle to factory specifications or preparing it for increased power output, King Engine Bearings delivers trusted quality and fitment.
Key Features:
King Engine Bearings are renowned for their precision engineering and material quality. This main bearing set includes several key features that enhance engine reliability and performance:
- Bimetal construction with an aluminum silicon base for excellent wear resistance and conformability
- Designed specifically for Subaru FA20 and FB20 engines to ensure perfect fit and function
- Precision-machined to tight tolerances for optimal crankshaft support and reduced friction
- Enhanced load-carrying capacity to withstand high RPM and increased power demands
- Corrosion-resistant surface treatment to extend bearing life
- Compatible with OEM specifications for seamless engine rebuilds
- Manufactured under strict quality control standards to ensure consistency and reliability
Construction & Design:
The main bearings in this set utilize a bimetal design featuring an aluminum silicon alloy base layer. This combination provides a balance of strength, fatigue resistance, and excellent conformability to the crankshaft journal surface. The aluminum silicon base offers superior embedability, allowing the bearing to accommodate minor debris and surface imperfections without damage.
King Engine Bearings applies advanced manufacturing processes and surface treatments to enhance durability and reduce friction. The precise engineering ensures that each bearing shell maintains consistent thickness and roundness, critical for maintaining proper oil clearance and preventing premature wear.
Installation & Fitment:
This main bearing set is a direct fit replacement for the Subaru BRZ models from 2013 through 2020 and Toyota 86 models from 2017 through 2020 with FA20 or FB20 engines. Installation requires standard engine rebuild procedures, including proper cleaning of bearing surfaces, checking crankshaft journals for wear or damage, and verifying oil clearances with plastigauge or micrometers.
No modifications are necessary when installing these bearings, making them an excellent choice for both professional engine builders and experienced enthusiasts performing maintenance or performance upgrades.
What's Included:
- Main bearing shells sized to 0.5mm undersize for FA20/FB20 engines
- Complete set to replace all main bearings in the engine block
- Packaging with part number and installation guidance
Ideal For:
This King Engine Bearings Main Bearing Set is ideal for Subaru BRZ and Toyota 86 owners undertaking engine rebuilds or upgrades. It suits performance enthusiasts seeking reliable, OEM-quality components that can handle increased power and RPM. Additionally, professional engine builders and mechanics will appreciate the precision fitment and durability these bearings provide for FA20 and FB20 engine applications.
