Best Performance Engine Main Bearings of 2025

This King Engine Bearings MB 557SI MB557SI Main Bearing is designed for vehicle-specific fit, and it belongs to the category of performance engine main bearings. It comes in a compact package with dimensions of 13.208 x 4.572 x 9.144 cm and a weight of 0.499 kg. The country of origin is Israel.

Sealed Power 4663M Bearings feature a steel-backed bronze alloy lining with overplate, known for its fatigue resistance and strength. This design provides the conformability needed for older applications, ensuring durability. These bearings are cast and can be used with E-356K, E-356KC, or E-356X ring sets, making them versatile. With exacting tolerances, they meet or exceed OEM specifications, guaranteeing high quality and reliability for your engine.

The Clevite MS-909P Main Bearing Set is a high-quality performance engine main bearings set. The set is made from cast copper-lead, which boosts fatigue strength by around 20% compared to the competition's powdered metal processes. This set is a great choice for vehicles that don't receive regular maintenance service, and is ideal for older engines. It is manufactured to meet or surpass OE specifications.

The King Main Bearing Set is a high-quality performance engine main bearing set from King Engine Bearings. This set is designed to fit engines with standard bearing size. With its compact package dimensions of 18.288 H x 4.318 L x 9.144 W (centimeters) and lightweight package weight of 0.454 kilograms, it is easy to handle and install. The main bearings are made in China, ensuring affordability without compromising on quality. Upgrade your engine with the King Main Bearing Set for improved performance and durability.

The Clevite MS-2199H Engine Crankshaft Main Bearing Set is a high-performance engine bearing set made in the USA. It is manufactured from cast copper-lead to increase its fatigue strength by up to 20%. The H-Series bearings are narrowed for greater crankshaft fillet clearance, and the un-plated hardened steel backing ensures better dimensional accuracy and bore contact. The high crush design ensures better seating and retention.

The Clevite MS-590P Main Bearing Set is a high-quality performance engine component manufactured by Clevite 77. Made from cast copper-lead, this main bearing set offers increased fatigue strength compared to competitors that use powdered metal processes. This makes it a durable choice for your engine, especially if you don't get maintenance service as often as you should. The additional embed ability of this bearing set also makes it a great option for older engines. With its ability to meet or exceed OE specifications, you can trust this Clevite main bearing set to deliver excellent performance and reliability for your vehicle.

The Clevite 77 Main Bearing Set offers exceptional features. Manufactured from durable copper-lead, it enhances fatigue strength by 20% more than competitors using powdered metal. This provides a safety margin for vehicles with irregular maintenance. Its high embed ability is perfect for older engines, ensuring longevity. Meeting or exceeding OE specifications, these bearings are a reliable choice for performance engines.

The Clevite Crankshaft Bearings are designed to enhance the durability of your engine. Made from cast copper-lead, these bearings provide a 20% increase in strength compared to those made with powdered metal. This means they can better withstand the demands of your engine, especially if you don’t maintain it as frequently as you should. Additionally, they have a unique ability to embed particles, making them particularly suitable for older engines that may require extra care. With manufacturing that meets or exceeds original equipment specifications, you can trust these bearings to perform reliably.

Upgrade your Acura engine with the ACL Main Bearing. Designed to deliver high performance, this main bearing ensures optimal engine function and longevity. The ACL Main Bearing is made by the trusted brand ACL and is specifically designed for Acura vehicles. With its superior quality and durability, it provides reliable support to the engine's rotating assembly. The main bearing plays a crucial role in reducing friction and maintaining proper oil clearance, resulting in smoother engine operation. By investing in the ACL Main Bearing, you can enjoy improved engine performance, reduced wear and tear, and a longer lifespan for your Acura.

Clevite MS-909P-10 Engine Crankshaft Main Bearing Set is made of cast copper-lead, which enhances its fatigue strength by 20% compared to powdered metal processes. It offers a margin of forgiveness for vehicles that do not get proper maintenance and is a good choice for older engines with increased embed ability. It meets or exceeds OE specifications, ensuring high-quality performance.