Best Engine Main Bearings of 2026

The Michigan SI-Series Bearings are designed for both stock and performance engines, making them a versatile choice for your vehicle. They feature a bi-metal construction with improved crankshaft finishes, which helps to minimize wear on your engine. You'll appreciate the enhanced oil clearance, as it reduces friction and extends engine life. Additionally, these bearings help decrease operational noise and vibrations, providing a smoother driving experience. With these features, you can trust that your engine will run efficiently and reliably.

Upgrade your LS engine with the King Bearing Set for LS Engines. This set includes standard size bearings that are perfect for your 4.8L, 5.3L, or 6.0L V8 engine. If you need oversizes, simply send a message and they will be accommodated. In the rare event that King is out of stock, they will substitute with either Clevite A Series or ACL Brand A Series. To ensure availability, send a message to check the current stock of King. With this bearing set, you can trust in the quality and reliability of King, a trusted brand in the industry. Get the perfect fit and performance for your LS engine with the King Bearing Set for LS Engines.

This automatic transmission bearing kit includes a high-quality roller PILOT bearing designed for Ford Racing's 289/302/351C/351W engines. The compact package dimensions of 5.588 L x 5.588 H x 2.286 W (centimeters) make it easy to store and transport, weighing only 0.5 pounds. The product is made in China.

Introducing the King Performance Main Bearing Set, the perfect choice for high-load, long-duration racing engines. Designed by King Engine Bearings, a trusted brand in the industry, this set is specifically engineered for demanding racing applications such as circle track, off-road, and off-shore racing. With its superior quality and performance, this bearing set ensures optimal engine performance and longevity. The package dimensions of 29.845 H x 5.842 L x 12.065 W (centimeters) make it easy to handle and store. Weighing just 0.612 kilograms, it is lightweight yet durable. Manufactured in Israel, it guarantees reliability and precision. Upgrade your racing engine with the King Performance Main Bearing Set and experience enhanced performance and durability.

The Zieichy Engine Bearings Set is designed to fit various Hyundai and Kia models from 2011 to 2016, including Elantra, Tucson, Soul, and Forte series. This set uses an overlay plate with reduced thickness, which helps improve the durability and fatigue resistance of the bearings, ensuring longer engine life. The rod bearings have a hardened steel backing that offers better support and keeps the bearing lining securely in place, reducing the risk of damage. Additionally, the bearings feature increased crush and eccentricity, which help them fit tightly and compensate for engine bore distortions at high RPMs. This design also promotes better oil flow and load distribution, enhancing engine performance and reliability.

The GM Steering Wheel Nut is crafted to meet high standards, ensuring reliability for your vehicle. Designed by GM engineers, this part fits perfectly with Chevrolet, Buick, GMC, and Cadillac models, giving you confidence in its compatibility. You’ll appreciate that it’s tested thoroughly, so it meets tough quality requirements for long-lasting performance. Additionally, GM continuously improves their parts by using new materials and technologies, which means you get a product that stays current with automotive advancements. If you want a steering wheel nut that’s dependable and backed by the original manufacturer, this is a smart choice.

The Clevite 77 Plastigage is a handy tool designed to help you measure engine main bearing clearances accurately. Its green Plastigage material allows you to easily check the gap size, ensuring proper fit and function of engine parts. The compact packaging, measuring just over 12 inches long and about an inch wide and high, makes it simple to store and carry around in your toolbox. Weighing only a tenth of a pound, this lightweight product won’t add bulk or weight to your gear. With a single piece included, you get exactly what you need for your engine maintenance tasks without any extras.

This Plastigauge Green Rod & Main Bearing Clearance 12/Pack is designed to measure clearances between .001"-.003" for engine connecting rod bearings. It contains 12 sticks that can accurately measure clearances between .001"-.003".

The AUTOKAY Main Bearings are designed specifically for 2.4L engines used in Buick, Chevrolet, Equinox, Malibu, and GMC models from 2000 to 2017. This set includes one complete main bearing kit, making it convenient for you to replace worn or damaged engine bearings all at once. The bearings are made to match original equipment specifications, ensuring a proper fit and reliable performance. By using these bearings, you can help maintain engine stability and reduce wear, which contributes to smoother operation and longer engine life.

This product is a main bearing for engines with package dimensions of 11.51 L x 2.15 H x 4.29 W (inches) and a package weight of 1.25 pounds. It is made in Israel with the part number MB5013XP STDX.