King Engine Bearings Main Bearing Set

2011–2016 Scion tC (2AR-FE / 2AR-FXE)

MB5810SI0.25

Overview:

The King Engine Bearings Main Bearing Set is a precision-engineered component designed to restore and enhance the durability of your engine’s rotating assembly. Specifically crafted for Toyota and Scion models equipped with the 2AR-FE and 2AR-FXE engines, this main bearing set ensures reliable performance and longevity under daily driving and moderate performance conditions.

Whether you are performing an engine rebuild or replacing worn bearings, this set provides the quality and fitment you need to maintain smooth engine operation. King Engine Bearings are trusted by enthusiasts and mechanics alike for their consistent quality and durability.

Key Features:

This main bearing set offers several important features that contribute to engine reliability and performance:

• Bimetal construction with an aluminum-silicon base for excellent wear resistance and load capacity.
• Precision manufacturing to OEM specifications for perfect fitment in 2AR-FE and 2AR-FXE engines.
• Designed to withstand the stresses of both hybrid and conventional gasoline engine operation.
• Compatible with a wide range of Toyota and Lexus models, ensuring versatility and ease of sourcing.
• Helps maintain proper oil clearance and reduces friction for smoother engine rotation.
• Durable surface coating enhances bearing life and reduces the risk of premature failure.
• Size 0.25 undersize bearings accommodate engine reconditioning needs after crankshaft machining.

Construction & Design:

King Engine Bearings utilizes a bimetal design featuring an aluminum-silicon alloy base that provides a strong, wear-resistant surface ideal for main bearing applications. This material combination offers excellent conformability and fatigue resistance, critical for maintaining engine reliability over time. The bearings are engineered to meet or exceed OEM tolerances, ensuring a precise fit and optimal oil film thickness for effective lubrication.

The size 0.25 designation indicates these bearings are undersized by 0.25mm, making them suitable for engines where the crankshaft journals have been machined to restore smoothness and roundness. This precision sizing helps maintain proper bearing clearance, which is essential for preventing metal-to-metal contact and ensuring long engine life.

Installation & Fitment:

This main bearing set is designed for direct replacement in compatible Toyota and Scion engines without modification. It fits the following vehicles equipped with 2AR-FE or 2AR-FXE engines:

• Scion tC Base 2011–2016
• Lexus ES300h Base 2013–2018
• Lexus NX300h Base 2015–2021, F Sport Black Line 2021, Luxury 2020–2021
• Toyota Avalon Hybrid and Non-Hybrid models 2013–2018
• Toyota Camry Base, Hybrid, and various trims 2010–2017
• Toyota RAV4 Base, Hybrid, EV, and multiple trims 2009–2018

No special machining beyond standard crankshaft journal sizing is required when installing this bearing set. It is recommended to follow proper engine assembly procedures and torque specifications to ensure optimal performance and longevity.

What’s Included

• Complete main bearing set sized 0.25mm undersize for 2AR-FE / 2AR-FXE engines
• Precision-engineered bearings with bimetal aluminum-silicon construction

Ideal For:

This main bearing set is ideal for:

• Engine rebuilders and mechanics performing crankshaft journal machining
• Owners of Scion tC and compatible Toyota/Lexus models seeking reliable OEM-quality replacement bearings
• Daily drivers and hybrid vehicle owners requiring durable, long-lasting engine components
• Performance enthusiasts maintaining engine integrity during moderate upgrades or repairs

King Engine Bearings specializes in engine bearings with a strong footprint in performance and racing, developing advanced bearing materials and designs for high-load engines. Builders and racers rely on King for main and rod bearings engineered to handle higher cylinder pressures and sustained RPM without sacrificing reliability.