BMW M3 E46/E36 Rod Bearing Kit - WPC Micro-Treated Connecting Rod/Conrod Big End Shells (12pcs) by ECS Tuning | Low-Friction Engine Crank Bearings Upgrade for S54/S50

WPC Micro-Treated Conrod Bearing Shells for BMW M3 E36 and E46

Protect the bottom end of your inline-six with this premium big end bearing kit from ECS Tuning. The WPC surface process delivers an ultra-smooth, hardened finish that helps the oil film stay consistent under load, reducing metal-to-metal contact and wear during hard use. Ideal for preventative maintenance, engine refreshes and high performance builds for spirited road driving, fast road setups and track days.

Key advantages

• Ultra low-friction bearing faces for cleaner rotation at high RPM
• Densified surface structure for outstanding scuff and fatigue resistance
• Improved oil film stability to support reliable clearance under heat and load
• Helps combat friction and temperature build-up in demanding conditions
• Perfect during a bottom-end refresh, conrod bearing service or full rebuild

How WPC treatment helps

WPC is a fine media micro-shot process that bombards the surface at high velocity to create a uniform, compressed, ultra-fine texture. Unlike traditional shot peening, the media is microscopic, so you gain a smoother finish that reduces drag while increasing surface strength. The result is a bearing shell that resists galling and maintains oil film integrity when you need it most.

What is included

• 12 bearing shells total
• 6 upper and 6 lower pieces for a complete straight-six installation

Compatibility

Designed for BMW M3 E36 and BMW M3 E46 applications. A smart choice for owners searching for big end shells, conrod shells, crank bearing shells or an engine bearing upgrade for their six-cylinder M3.

Proven in our workshop

We have installed these WPC-treated shells on customer M3 builds and preventative bearing services. Feedback has been excellent, with noticeably smoother running and greater peace of mind for both street and circuit use.

Fitting service

Want it installed properly first time? Book professional fitting with MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

Good practice

• Always use new conrod bolts where specified by the manufacturer
• Change engine oil and filter after installation
• Measure and confirm bearing clearances during assembly

Looking for E46 M3 big end shells, E36 M3 conrod bearings, WPC micro-shot treated shells, BMW six-cylinder engine bearings, performance bearing shells for road and track, low-friction crank bearings, high strength bottom-end shells, endurance prep bearing kit or a BMW M3 bearing replacement solution? This kit covers it. Order today for a robust, low-drag upgrade that helps safeguard your engine under spirited use.