MAHLE
MAHLE Motorsport S55/N55 Connecting Rod (Conrod) Bearings Set BMW F80 M3, F82/F83 M4, F87 M2 6-Cylinder Big End Bearings, UK Made
MAHLE Motorsport S55/N55 Connecting Rod (Conrod) Bearings Set BMW F80 M3, F82/F83 M4, F87 M2 6-Cylinder Big End Bearings, UK Made
Heads-up on cancellations & returns: if you cancel an order or return an item, you won't get back 100% of what you paid. We apply a 10% restocking fee, the outbound shipping is non-refundable, and we have to pass on Shopify / PayPal payment processing fees; these aren't returned to us when we refund you. International orders also lose on exchange-rate spread in both directions. If the original packaging is damaged or missing, a reboxing charge applies. For international orders specifically, if you refuse to pay our shipping invoice or supply a prepaid label after placing the order, the same deductions apply. We're upfront about this — please be sure of your purchase before ordering.
Couldn't load pickup availability
MAHLE Motorsport Big-End Shell Kit for BMW S55 and N55
Reinforce the bottom end of your BMW M car with race-grade big-end shells from MAHLE Motorsport. Manufactured in the UK and proven in top-level competition, this bearing shell kit delivers the reliability, oil film stability and durability that fast-road and track enthusiasts demand for S55 and N55 powered cars.
Why choose these bearing shells
- Direct fit for BMW F80 M3, F82 M4, F83 M4 and F87 M2 with S55 or N55 engines
- Complete kit for six cylinders for a thorough bottom-end refresh
- Designed for use with a standard unground crankshaft
- UK-made to elite motorsport standards for consistent performance
- Nominal clearance of 55 micron with a 43 to 57 micron range for dependable oil film control
- Clearances derived using MAHLE Motorsport modelling to predict housing swell, bearing load, oil film thickness and power loss
Race-proven metallurgy
Each shell features a high-strength steel backing with a cast bronze substrate and a VP2 lead indium overlay. This construction offers exceptional fatigue resistance and conformability compared with typical tri-metal designs that use sintered layers with tin or lead overlays. The same material technology is in service at the highest levels of motorsport including Formula 1, Le Mans, NASCAR, MotoGP, WRC and DTM.
Real-world confidence for road and track
The optimised 55 micron nominal clearance and advanced oil film modelling give superb load capacity and consistent lubrication under hard use. At MJ Modifications we run and fit these shells on customer builds and have been consistently impressed with the quality, fitment and bearing pattern over time. They are an outstanding choice for preventative maintenance, bottom-end refreshes and performance builds.
Compatibility
- BMW F80 M3 with S55 engine
- BMW F82 M4 with S55 engine
- BMW F83 M4 with S55 engine
- BMW F87 M2 with N55 or S55 engine
Ideal for
- S55 bearing shell replacement and upgrades
- N55 big-end refresh and preventative maintenance
- Performance and track-day builds seeking reliable bottom-end protection
- OEM-size journal shells for standard crank journals
Fitting and support
Professional installation is strongly recommended for best results. Book fitting with MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.
Important: observe correct clearances, cleanliness and torque procedures during installation. Designed for use with an unground crank.
Popular search terms
MAHLE Motorsport bearing shells S55, MAHLE Motorsport bearing shells N55, BMW big end shells M3, BMW big end shells M4, BMW big end shells M2, S55 rod shell kit, N55 rod shell kit, BMW bottom end bearings F80 F82 F83 F87, UK made engine bearings, VP2 lead indium overlay shells, steel backed bronze bearing shells, performance engine bearings BMW, racing bearing shells UK, straight-six rod shells, OEM size journal shells, standard crankshaft fit shells, S55 bearing replacement UK, N55 bearing replacement UK, BMW M rod shell upgrade, F series BMW M bottom end shells.
Share
