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Porterfield Racing Brake Pads — Race Proven Performance
Porterfield AP1821
Image of what an axle set is. 2 pads per wheel, 2 wheels equal axle set

Porterfield

Porterfield AP1821 Brake Pads

SKU: SKU: AP1821 R-4

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:

  • R-4 — The original road racing compound that is very rotor friendly and easy to modulate. Medium friction with a 0–1200°F temperature range; optimum 350°F–900°F. Not for street use.
  • R4-E — The Endurance compound. Slightly lower friction than the R-4 but designed to wear longer for endurance races (4–6 hour). Characteristics are otherwise much the same as R-4. Not for street use.
  • 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 AP1821 brake pad Axle set of 4 pieces REAR

Make Vehicle Applications
Jaguar 22-24 E-PACE Base and SE, 2022 E-PACE 300 Sport, 18-20 E-PACE, 18-19 E-PACE Base P250, 18-19 E-PACE First Edition P250, R-Dynamic HSE P300, R-Dynamic S P300, R-Dynamic SE P300, S P250, SE P250, 2020 F-PACE 25t, 2020 F-PACE Checkered Flag Limited Edition, 2020 F-PACE 30t, 2020 F-PACE 300 Sport Limited Edition, 2020 F-PACE S, 2021 F-PACE P250, P250 S, 22-24 F-PACE Base, 2022 F-PACE R-Dynamic S, 2022 F-PACE S; 4 Cylinder Eng., 2022 F-PACE S; 6 Cylinder Eng., 17-19 F-PACE Diesel Engine; 20d, 17-19 F-PACE Gas Engine; 35t, 30t, S, 18-19 F-PACE Gas Engine; 25t, 19-20 I-PACE, 2020 XE P250, 2020 XE P300, 17-19 XE 20d; RWD, 17-19 XE 20d; AWD, 17-20 XE 25T, 17-19 XE 35T, 18-19 XE S, 2016 XF, 2017 XF 35t, S, 2018 XF 30t, 35t, S, 2020 XF Sportbrake; Prestige, 2020 XF Checkered Flag Limited Edition, 18-19 XF 20d, 25t, 18-20 XF Sportbrake, 19-20 XF 30t, S, 21-22 XF
Land Rover 20-23 DISCOVERY SPORT, 15-17 DISCOVERY SPORT, 18-19 DISCOVERY SPORT 286hp Engine, 18-19 DISCOVERY SPORT SE, 18-19 DISCOVERY SPORT HSE, HSE Luxury; 237hp Engine, 21-24 DISCOVERY SPORT, 18-21 RANGE ROVER VELAR 4Cyl, 18-21 RANG ROVER VELAR 6Cyl, 20-25 RANGE ROVER EVOQUE, 16-19 RANGE ROVER EVOQUE, 18-19 RANGE ROVER EVOQUE 286hp Engine
Polestar 21-24 POLESTAR 2 Base Model; To Chassis -24098, 21-24 POLESTAR 2 Performance; To Chassis -24098
Volvo 19-20 S60 T6, 19-20 S60 T8, 19-20 S60 T8 eAWD Hybrid Plug-in; Polestar Engineered, 17-19 S90 T5; 345mm Front Rotors, 17-19 S90 T6, 17-19 S90 T5; 322mm Front Rotors, 18-19 S90 T8, 20-21 S90 Vehicle Production To Chassis 225610, 2019 V60 T6, 2019 V60 T5, 19-20 V60 CROSS COUNTRY, 2019 V90 T6, 17-18 V90 T6, 17-19 V90 T5, 17-20 V90 CROSS COUNTRY, 2021 XC40 Recharge Pure Electric; to Chassis # 546021, 2018 XC60 T8 Inscription eAWD, 2020 XC60 T8, 18-19 XC60 T8 R-Design eAWD, 18-20 XC60 T6, 2020 XC90 T8, 16-18 XC90 T8, 16-20 XC90 T5, T6 D1821, AP1821

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

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