5150 AutoSport Xtreme Main Bearing Set, BMW S54

Protect the bottom end of your BMW S54B32 / S54 engines with the 5150 AutoSport Xtreme Main Bearing Set, BMW S54, engineered for durability under high load and high RPM. Engineered by 5150 AutoSport, this main bearing set is built to the standards demanded by high-performance and motorsport BMW builds.

Key Features

• Designed for BMW S54B32 / S54 engines
• Engineered for durability under high load and high RPM
• Precision tolerances for correct bearing clearance
• Ideal for high-performance and forced-induction builds
• Trusted protection for the rotating assembly
• Supplied by 5150 AutoSport, trusted by BMW enthusiasts worldwide

Product Details

5150 Xtreme Race Bearings – BMW S54

Our 5150 Xtreme race bearings have been thoroughly validated in road racing environments, with proven performance in naturally aspirated engines producing over 480 HP and turbocharged applications exceeding 1400 HP. Developed and tested under extreme conditions, they provide the consistency and durability required when engines are pushed to their limits.

Designed specifically for the BMW S54 platform, 5150 Xtreme bearings are intended for race use. Each bearing is precision-treated, coated, and measured to ensure optimal fit and performance. Each bearing shell is measured and matched in-house before kitting to ensure precise fit and consistency.

Compared to OEM bearings, these coated variants offer increased thermal tolerance, making them well-suited for engines subjected to the elevated temperatures and sustained stress of track use. The coating reduces friction and promotes stable operation under high load, while also providing an added layer of protection during harsh conditions, including brief periods of reduced lubrication.

Tech Notes:

• Verify all clearances and sizing prior to installation
• Professional installation is recommended due to required tools and precision
• Engine bearings are not eligible for return

BMW S54 Applications:

BMW 3 Series

2000-2006 E46 M3

BMW Z3 Series

2001-2002 Z3 M

BMW Z4 Series

2006-2008 Z4 M

Compatibility

BMW S54 Models

• BMW E46 M3
• BMW Z3 M Roadster / Coupe
• BMW Z4 M Roadster / Coupe

Why Choose 5150 AutoSport?

• Purpose-built BMW performance engineering
• Components developed for high-power, real-world durability
• Trusted by serious BMW engine builders
• Specialist knowledge of forced-induction and high-RPM builds

Why Buy from R44 Performance?

R44 Performance supplies premium BMW performance and engine-building components trusted by enthusiasts worldwide.

• BMW specialists
• Genuine 5150 AutoSport products
• Fast UK & worldwide shipping
• Expert product support

Upgrade your BMW S54B32 / S54 build with the 5150 AutoSport Xtreme Main Bearing Set, BMW S54 — available now from R44 Performance.

Unless explicitly stated otherwise, all products sold by R44 Performance Limited are designated RACE ONLY and are solely for competition or off-road use limited to racing formally sanctioned by a recognized racing organization. Any other use, including recreational off-road use, may violate local, state, and Federal laws. R44 Performance Limited does not implicitly or explicitly confirm the legality of using any products it sells on public roads; that is entirely the responsibility of the consumer.

It is the responsibility of the customer to check with all federal, state local and environmental laws before ordering and installing a product. R44 Performance Limited is not responsible for any fees, fines or costs that a customer may incur as a result of failing to check with federal, state, local or environmental laws before ordering and installing a product.

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We totally understand if you're not certain a part will be compatible with your car, so we highly recommend contacting us here with your query. Our friendly sales team will then be in touch to confirm if this part is the correct part you are looking for.

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All of our products come with a standard warranty of 1-3 years. This is dependant on the type of product however. For more details please see our warranty page here.