Barbaro Racing KD7646 RS-635 rear brake pads for Porsche Panamera and Brembo 19Z / 20Z 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 KD7646: 126 × 69.7 × 14.9 mm; interchanges with FMSI D1416, Brembo P65020N.

Specifications

Barbaro part numberKD7646
CompoundRS-635 — Race endurance low-metallic
Barbaro factory code (SKU)D76462N5
AxleRear
Dimensions (L × H × T)126 × 69.7 × 14.9 mm
Friction material height60.4 mm
Supplied asOne axle set
Also available for KD7646KD7646 C-01 Premium Street, KD7646 S-01 Street & Track, KD7646 CSI-01B Carbon-Ceramic

Caliper fitment

Caliper brandCaliperDetails
Brembo19Z / 20Z (rear)wide pad, 60 mm friction face

Vehicle fitment

MakeModelChassisYearsEngine / variantNotes
PorschePanamera9702010–20163.0T, 3.6L, 4
PorschePanamera 49702010–20163.0T, 3.6L
PorschePanamera 4 E-Hybrid9712016–2.9T plug-in hybrid
PorschePanamera 4 E-Hybrid SportTurismo9712016–2.9T plug-in hybrid
PorschePanamera 4 SportTurismo9712016–3.0T
PorschePanamera 4S970, 9712010–3.0T, 4.8L, 2.9T
PorschePanamera 4S SportTurismo9712016–2.9T
PorschePanamera GTS970, 9712011–4.8L, 4.0T
PorschePanamera GTS SportTurismo9712018–4.0T
PorschePanamera S9702010–20163.0T, 4.8L
PorschePanamera S E-Hybrid9702013–3.0T plug-in hybrid
PorschePanamera S Hybrid9702011–20133.0T hybrid
PorschePanamera Turbo9702010–20164.8T
PorschePanamera Turbo S9702011–4.8T

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

FMSID1416, D1417, D1416-8531, D1417-8532, D1919-8531
BremboP65020N, P65020

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.

  • Porsche Panamera 4 (970) 3.0T, 3.6L (2010-2016)
  • Porsche Panamera 4 E-Hybrid (971) 2.9T plug-in hybrid (2016-)
  • Porsche Panamera 4 E-Hybrid SportTurismo (971) 2.9T plug-in hybrid (2016-)
  • Porsche Panamera 4S (970, 971) 3.0T, 4.8L, 2.9T (2010-)
  • Porsche Panamera 4S SportTurismo (971) 2.9T (2016-)
  • Porsche Panamera GTS (970, 971) 4.8L, 4.0T (2011-)
  • Porsche Panamera GTS SportTurismo (971) 4.0T (2018-)
  • Porsche Panamera S (970) 3.0T, 4.8L (2010-2016)
  • Porsche Panamera S E-Hybrid (970) 3.0T plug-in hybrid (2013-)
  • Porsche Panamera S Hybrid (970) 3.0T hybrid (2011-2013)
  • Porsche Panamera Turbo S (970) 4.8T (2011-)
  • Porsche Panamera (970) 3.0T, 3.6L, 4 (2010-2016)
  • Porsche Panamera 4 SportTurismo (971) 3.0T (2016-)
  • Porsche Panamera Turbo (970) 4.8T (2010-2016)
SKU D76462N5
Brand Barbaro Racing
Unit Of Measure EA

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