Product Details

This page covers the Whiteline Front Lower Radius Arm Bushing for the 2015-2018 BMW M3 Base (F80). The listing names the Base trim. Placement: front. Application note: Adds +/- 0.5 degrees Caster. Does not Suit xDrive Models. The kit contains 2 bushings, 2 tubes, adjusting tool, an install guide, and grease. The part number is KCA473.

A standard bushing only restores what the factory built. This one is designed to change the geometry, adding positive caster and changing front anti-dive behavior, in addition to resisting the deflection that soft rubber allows.

Whiteline rates the install as difficult and lists about 3 hours. Get the car aligned once it is back on the ground. Working on the same car? We also list Adjustable Sway Bar Vehicle Link Kit, Front Sway Bar Link Assembly, and Adjustable Rear Sway Bar Link Kit for the BMW M3.

Features

  • Install guide: An install guide comes in the box.
  • Caster: Caster is optimized for stable steering and good contact through roll.
  • Bushing compound: The bushing material stands up to oil, grease, ozone, and weather.
  • Alignment adjustment: Adds adjustment so the alignment can be optimized.
  • Compliance voids: Voids molded into the bushing allow suspension articulation and soften sharp road inputs.
  • Corrosion protection: A protective plating covers the metal components to guard against corrosion.
Specifications
Part Number KCA473
Part Name Radius Arm Bushing
Vehicle 2015-2018 BMW M3 Base
Chassis Code F80
Bushing Color Black
Bushing Material Polyurethane
Durometer 80
Inside Diameter 12.5 mm
Installation Difficulty Difficult
Installation Time (hrs) 3
Kit Contents 2 Bushings, 2 Tubes, Adjusting Tool, Install Guide, Grease
Length 89 mm
Outside Diameter 70.7 mm
Vehicle Placement Front
Wheel Alignment Required Yes
Notes Adds +/- 0.5 Degree Caster; Does not Suit xDrive Models

Vehicle fitment

This product fits the vehicles listed below.

YearMakeModelDrivetrainNotes
2015BMWM3RWDAdds +/- 0.5 Degree Caster; Does not Suit xDrive Models
2016BMWM3RWDAdds +/- 0.5 Degree Caster; Does not Suit xDrive Models
2017BMWM3RWDAdds +/- 0.5 Degree Caster; Does not Suit xDrive Models
2018BMWM3RWDAdds +/- 0.5 Degree Caster; Does not Suit xDrive Models

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