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Porterfield Racing Brake Pads — Race Proven Performance
Porterfield AP1850
Image of what an axle set is. 2 pads per wheel, 2 wheels equal axle set

Porterfield Part # AP1850 R4-S

Porterfield AP1850 Brake Pads

$169.95 CAD
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Canadian since 2005Mississauga, Ontario
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Porterfield Brakes are race-bred friction designed and proven on the track. Each set is precision-cut from premium friction material and developed for high-temperature durability, fade resistance, and consistent pedal feel.

Available Compound Options for this Fitment:

  • R4-S — The performance street pad. Lowest dust and squeal of any street pad in the Porterfield line, very rotor friendly, and lasts as long as (or slightly longer than) stock pads. Not for track use. Not for use with CCM discs.

Vehicle Fitment

Porterfield AP1850 brake pad Axle set of 4 pieces REAR

Make Vehicle Applications
BMW 18-23 530E M Sport Brakes, 18-23 530E X Drive M Sport Brakes, 17-23 530i M Sport Brakes, 17-23 530i xDrive M Sport Brakes, 17-243 540i M Sport Brakes, 17-23 540i, 17-23 540i xDrive M Sport Brakes, 17-23 540i xDrive, 18-19 640i xDrive GT, 2018 740e iPerf xDrive, 17-19 740e xDrive, 17-19 740e xDrive M Sport Brakes, 16-22 740i, 16-22 740i M Sport Brakes, 17-22 740i xDrive, 17-22 740i xDrive M Sport Brakes, 20-22 745e xDrive, 20-22 745e xDrive M Sport Brakes, 16-19 750i, 16-19 750i M Sport Brakes, 16-22 750i xDrive, 16-22 750i xDrive M Sport Brakes, 16-18 750li xDrive, 17-18 750li xDrive M Sport Brakes, 20-24 840i, 20-23 840i M Aerodynamics pkg, 2020840i GRAN COUPEM Aerodynamics Package, 20-24 840i GRAN COUPE, 21-24 840i GRAN COUPE M Sport Brakes, 20-25 840i GRAN COUPE XDRIVE, 20-21 840i GRAN COUPE XDRIVE M Aerodynamics Package, 22-24 840i GRAN COUPE XDRIVE M Sport Brakes, 20-21 840i XDRIVE M Aerodynamics Package, 22-24 840i XDRIVE M Sport Brakes, 20-25 840i XDRIVE, 17-22 ALPINA B7 XDRIVE, 23-24 iX M60, 22-24 iX xDrive50, 23-25 M2, 21-25 M3 Iron Rotors, 21-25 M4 Iron Rotors, 18-23 M550I XDRIVE, 18-19 X3 xDrive30i; M Sport Brakes, 18-23 X3 M40i, 20-23 X3 M Competition, 19-23 X4 M40i, 20-23 X4M Competition, 2020 X5 M50i, 19-20 X5 xDrive50i; Standard Brakes, 19-20 X5 xDrive50i; M Sport Brake, 20-23 X5 sDrive40i; M Sport Brakes, 20-23 X5 xDrive40i; M Sport Brakes, 20-23 X5 sDrive40i, 19-22 X5 xDrive40i, 21-23 X5 M50i; Standard Brakes, 21-23X5xDrive 45e; Standard Brakes, 21-23 X5 xDrive 45e; M Sport Brakes, 2020 X6 M50i, 20-21 X6 sDrive40i; M Sport Brake, 20-21 X6 sDrive40i, 20-23 X6 xDrive40i; M Sport Brake, 20-23 X6 xDrive40i, 21-22 X6 M50i, 19-20 X7 xDrive 50i, 19-20 X7 xDrive 50i; M Sport Brake, 19-24 X7 xDrive 40i, 19-24 X7 xDrive 40i; M Sport Brake

All Porterfield Brakes products carry the manufacturer's standard warranty. Race compounds are not for street use.

Free Canadian shipping on qualifying orders $399+, with no duties or brokerage. Special order and made-to-order items can't be cancelled or refunded once ordered. Oversized items may have a handling fee depending on your location; pickup in Mississauga has no fee.

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