Barbaro Racing KD7397 RS-635 front brake pads for Mercedes-Benz AMG GT C / S-Class / C-Class / E-Class / SL / CLS / GLE / GLS / M-Class / SLS AMG / GLC / AMG GT S / G-Class / CL-Class / GL-Class / AMG GT 50, Audi RS6 / RS7, Mercedes-Maybach S-Class and Brembo Mercedes-AMG 6-piston calipers. RS-635 is Barbaro's low-metallic endurance race compound (50–800°C, μ 0.40–0.52) — CEC 2025 TCS class winner. Pad shape KD7397: 187.3 × 93.4 × 15.7 mm; interchanges with FMSI D1291, TRW GDB1734, Brembo P50127N.

Specifications

Barbaro part numberKD7397
CompoundRS-635 — Race endurance low-metallic
Barbaro factory code (SKU)D73972N5
AxleFront
Dimensions (L × H × T)187.3 × 93.4 × 15.7 mm
Friction material height68.3 mm
Supplied asOne axle set
Pad features6-piston caliper
Also available for KD7397KD7397 C-02 Silent City, KD7397 C-01 Premium Street, KD7397 S-01 Street & Track, KD7397 CSI-01B Carbon-Ceramic

Caliper fitment

Caliper brandCaliperDetails
BremboMercedes-AMG 6-piston68.3 mm friction face

Vehicle fitment

MakeModelChassisYearsEngine / variantNotes
AudiRS6C7, 4G5, 4GD2013–4.0T
AudiRS74G8, 4GA, 4GF2014–4.0T
Mercedes-BenzAMG GTC1902015–4.0T
Mercedes-BenzAMG GT 50X2902018–3.0T
Mercedes-BenzAMG GT 53 4MATICX2902018–3.0T
Mercedes-BenzAMG GT 63 S 4MATICX2902018–4.0T
Mercedes-BenzAMG GT CC190, R190, W2042017–4.0T
Mercedes-BenzAMG GT SC1902014–4.0T
Mercedes-BenzC-ClassC204, C205, S204, W204, W205, A2052008–AMG C63 Coupe, 4.0T, AMG C63, AMG C63 S Coupe, AMG C63 S, C 63 AMG, 204.077, 204.277, 204.377, 6.2 (M156.985)for vehicles without ceramic brakes
Mercedes-BenzCL-ClassC2162007–2012CL600, 5.5T
Mercedes-BenzCLKC2092007–200963 AMG, 209.377, 6.2 (M156.982)for vehicles without ceramic brakes
Mercedes-BenzCLSC218, X2182011–AMG CLS63 4MATIC, 5.5T, AMG CLS63 S 4MATIC, AMG CLS63, CLS 63 AMG, CLS 63 AMG 4-matic, CLS 63 AMG S, 218.374, 218.375, 218.376 …for vehicles without ceramic brakes
Mercedes-BenzE-ClassW211, W212, W213, S211, S2122006–AMG E63, 5.5T, AMG E63 4MATIC, AMG E63 S 4MATIC, 4.0T, E 63 AMG, E 63 AMG 4-matic, 211.077, 211.177, 211.277 …for vehicles without ceramic brakes
Mercedes-BenzG-ClassW463-12006–AMG G63 4MATIC, 5.5T, AMG G65 4MATIC, 6.0T
Mercedes-BenzGL-ClassX1662012–AMG GL63 4MATIC, 5.5T
Mercedes-BenzGLCC253, X2532018–AMG GLC63 4MATIC Coupe, 4.0T, AMG GLC63 4MATIC, AMG GLC63 S 4MATIC Coupe
Mercedes-BenzGLEC292, W1662014–AMG GLE63 4MATIC Coupe, 5.5T, AMG GLE63 4MATIC, AMG GLE63 S 4MATIC
Mercedes-BenzGLSX1662015–AMG GLS63 4MATIC, 5.5T, GLS500 4MATIC, 4.7T, GLS550 4MATIC
Mercedes-BenzM-ClassW1662011–AMG ML63 4MATIC, 5.5T, ML 63 AMG 4-matic, 166.074, 5.5 (M157.980), 5.5 (M157.982)for vehicles without ceramic brakes
Mercedes-BenzS-ClassC217, W222, W221, C216, V222, X2222005–AMG S63 4MATIC, 4.0T, 5.5T, AMG S65L, 6.0T, S600L, Maybach, CS60, CL 600, S 600 Maybach …for vehicles without ceramic brakes
Mercedes-BenzSLR230, R2312002–AMG SL65, 6.0T, AMG SL63, 5.5T, 600, 63 AMG, 65 AMG, 65 AMG Black Series, 230.470, 230.476 …for vehicles without ceramic brakes
Mercedes-BenzSLS AMGC197, A1972009–AMG SLS, 6.2 GT, 197.377, 197.477, 197.478, 6.2 (M159.980)for vehicles without ceramic brakes
Mercedes-MaybachS-ClassW2222014–Maybach, 6.0T

Fitment is compiled from the Barbaro Racing application catalogue and Barbaro factory data, together with the vehicle listings of the interchange part numbers below. Brake packages can differ within one model — please compare your current pads with the dimensions and drawing, or send us your VIN, before ordering.

Cross-reference / interchange numbers

FMSID1291, D1291-8408, D1291-8478
TRWGDB1734, GDB1734DTE
BremboP50127N, P50127
FerodoFDB4373
ATE13046048392
DelphiLP2149
Bendix573425B
Jurid573425J
Icer182079
Remsa130000, 127900
OE Mercedes-Benz0044207620, 0044209520, 0054206620, A0044207620, A0044209520, A0054206620, 0044208920, 0054201120, 0054203320, 0054208920, 0064202920, A0044208920, A0054203320, 0004204000 …

Interchange numbers identify the matching pad shape. Friction material, shims and wear-sensor hardware can differ between brands.

About the RS-635 compound

RS-635 · The endurance champion

The CEC 2025 class winner. At Tianfu International Circuit, a Hongqi H6 on RS-635 ran a 200-minute stint against PAGID RST3's 120 — with less wear.

  • Temperature range: 50–800°C
  • Friction: μ 0.40–0.52 (steel disc)
  • Formula: Race endurance low-metallic
  • Discs: Steel and carbon-ceramic
  • CEC Championship validated — TCS class winner
  • 200 min endurance on a single set
  • Ideal for: Endurance racing in heavier GTC and touring cars

RS-635 full specifications on barbaro-racing.com

About Barbaro Racing

Barbaro Racing (野蛮人) is the performance brand of the CAC Racing Division — proprietary compounds developed entirely in-house. Development begins on the dynamometer and ends on the circuit: every friction formula is bench-tested to destruction before earning the right to carry the Barbaro name. All compounds are validated against GB5763-2018 national standards; Street Series compounds are asbestos-free.

  • Mercedes Benz CLS (C218, X218) 5.5, 4MATIC (2011-)
  • Ferodo FDB4373 All
  • Mercedes Benz Maybach S-Class (W222) Maybach, 6.0T (2014-)
  • Mercedes Benz SLS AMG (C197, A197) 6.2 (2009-)
  • Mercedes Benz SL (R230, R231) 5.5 / 6.0 / 6.2 (2002-)
  • Mercedes Benz S-Class (C217, W222, W221, C216) 5.5 / 6.0, 4MATIC (2005-)
  • Mercedes Benz M-Class (W166) 5.5, 4MATIC (2011-)
  • Mercedes Benz GLS (X166) , 4MATIC (2015-)
  • Mercedes Benz GLE (C292, W166) , 4MATIC (2014-)
  • Mercedes Benz GLC (C253, X253) , 4MATIC (2018-)
  • Mercedes Benz GL-Class (X166) AMG GL63 4MATIC, 5.5T (2012-)
  • Mercedes Benz G-Class (W463-1) , 4MATIC (2006-)
  • Mercedes Benz E-Class (W211, W212, W213, S211, S212) 5.5 / 6.2, 4MATIC (2006-)
  • Mercedes Benz CLK (C209) 63 AMG, 209.377, 6.2 (M156.982) (2007-2009)
  • Mercedes Benz CL-Class (C216) CL600, 5.5T (2007-2012)
  • Mercedes Benz C-Class (C204, C205, S204, W204) 6.2 (2008-)
  • Mercedes Benz AMG GT S (C190) 4.0T (2014-)
  • Mercedes Benz AMG GT C (C190, R190, W204) 4.0T (2017-)
  • Mercedes Benz AMG GT 63 S 4MATIC (X290) 4.0T (2018-)
  • Mercedes Benz AMG GT 53 4MATIC (X290) 3.0T (2018-)
  • Mercedes Benz AMG GT 50 (X290) 3.0T (2018-)
  • Mercedes Benz AMG GT (C190) 4.0T (2015-)
  • Audi RS7 (4G8, 4GA, 4GF) 4.0T (2014-)
  • Audi RS6 (C7, 4G5, 4GD) 4.0T (2013-)
SKU D73972N5
Brand Barbaro Racing
Unit Of Measure EA

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