KD7794 RS-635 Rear Brake Pads - Audi Q7

Barbaro Racing KD7794 RS-635 rear brake pads for Audi Q7, Porsche Cayenne, Volkswagen Touareg 4MOTION and Brembo 17Z / 18Z 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 KD7794: 112.1 × 73 × 15.4 mm; interchanges with FMSI D978, TRW GDB1549, Brembo P85070N.

Specifications

Barbaro part number	KD7794
Compound	RS-635 — Race endurance low-metallic
Barbaro factory code (SKU)	D77942N5
Axle	Rear
Dimensions (L × H × T)	112.1 × 73 × 15.4 mm
Friction material height	48.8 mm
Supplied as	One axle set
Also available for KD7794	KD7794 C-02 Silent City, KD7794 C-01 Premium Street, KD7794 S-01 Street & Track

Caliper fitment

Caliper brand	Caliper	Details
Brembo	17Z / 18Z (rear)	48.8 mm friction face

Vehicle fitment

Make	Model	Chassis	Years	Engine / variant
Audi	Q7	4L	2006–2016	3.0T, 3.0T(35 TFSI), 3.0T(40 TFSI), 3.0TDI(35TDI) diesel, 3.0TDI diesel, 3.6L, 4.2L
Porsche	Cayenne	9PA	2002–2010	3.2L, 3.6L, 3.0TDI diesel, S, Brembo 18Z version
Porsche	Cayenne GTS	9PA	2006–2010	4.8L
Porsche	Cayenne S	9PA	2003–2010	4.5L, 4.8L
Porsche	Cayenne Turbo	9PA	2003–2007	4.5T
Volkswagen	Touareg 4MOTION	7L	2002–2010	4.2L, 4.9TDI diesel, 3.0TDI diesel, 3.2L, 3.6L

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

FMSI	D978, D978-7879
TRW	GDB1549
Brembo	P85070N, P85070

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.