ACL Standard Main Bearing Set

Fits 1988–1994 BMW E30 316i and 1990–1994 BMW E36 316i

Part #: 5M1538H-STD

Overview

The ACL Standard Main Bearing Set is a high-quality engine component designed to provide reliable support for your vehicle’s crankshaft. Crafted with precision engineering and premium materials, these bearings are ideal for enthusiasts and professionals seeking durability and performance in their BMW engines. Whether you're restoring a classic or maintaining a daily driver, this bearing set helps ensure smooth operation and long-lasting engine health, supporting higher RPM conditions and demanding driving environments.

Key Features

Designed to meet the rigorous demands of high-performance engines, the ACL Standard Main Bearing Set offers:

• Constructed from high-quality tri-metal materials for durability and heat resistance
• Precisely engineered to match OEM specifications for a perfect fit
• Enhanced metallurgy for improved load capacity and wear resistance
• Engineered to withstand higher RPM and demanding driving conditions
• Affordable option without compromising quality
• Suitable for a range of 4, 6, and 8-cylinder applications

Construction & Design

The bearings feature a tri-metal construction, combining a steel backing with a layered overlay of copper and aluminum alloys. This design ensures excellent fatigue strength, thermal stability, and consistent performance under engine stress. The precise machining and coating processes contribute to a smooth surface finish, reducing friction and wear over time.

Installation & Fitment

These main bearings are designed for straightforward installation, matching OEM dimensions for a direct drop-in replacement. Proper installation ensures optimal engine alignment and longevity, making them suitable for rebuilds, repairs, or upgrades.

What’s Included

The package includes a complete set of main bearings tailored for specific BMW models, ensuring comprehensive support for your engine’s crankshaft.

Ideal For

This bearing set is perfect for automotive enthusiasts, professional rebuilders, and anyone restoring or maintaining BMW E30 and E36 engines. It provides a dependable foundation for engine performance and longevity, supporting higher RPM operation and overall engine reliability.