KD7846 CSI-01B Rear Brake Pads

Barbaro Racing KD7846 CSI-01B rear brake pads for Mercedes-Benz G-Class / AMG G63 and Mercedes-AMG G63 single-piston calipers. CSI-01B is Barbaro's designated carbon-ceramic disc compound (−30–600°C, μ 0.40–0.43, SAE J2521 AA noise rating). Pad shape KD7846: 132 × 79.1 × 17.1 mm; interchanges with FMSI D2239, Brembo P50167.

Specifications

Barbaro part number	KD7846
Compound	CSI-01B
Barbaro factory code (SKU)	D78465N6
Axle	Rear
Dimensions (L × H × T)	132 × 79.1 × 17.1 mm
Drawing note	X2 pads 132 x 70.1 x 17.1; X2 pads with wear-sensor tab 132 x 79.1 x 17.1; backing 6; friction 64.5
Supplied as	One axle set
Also available for KD7846	KD7846 C-01 Premium Street, KD7846 S-01 Street & Track, KD7846 RS-635 Race Endurance

Caliper fitment

Caliper brand	Caliper	Details
Mercedes-AMG	G63 single-piston (rear)	68 mm friction face

Vehicle fitment

Make	Model	Chassis	Years	Engine / variant	Notes
Mercedes-Benz	AMG G63		2019–
Mercedes-Benz	G-Class	W463 (W463-2)	2018–	4MATIC, 4.0T

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

FMSI	D2239
Brembo	P50167
WVA	22717, 22718

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

About the CSI-01B compound

CSI-01B · The designated compound

The designated formula for short-fiber molded coated carbon-ceramic discs — built on the CSI-01 lineage dating to 2019. High performance and low noise, finally unified. And cold bite that Ferrari and Lamborghini carbon-ceramic systems have always lacked.

Temperature window: −30–600°C
Friction: μ 0.40–0.43
Noise rating: SAE J2521 AA
Disc: Carbon-ceramic
SAE J2521 noise rating AA — on unmodified bare pads
Friction rises with temperature — exceeding 1.0 μ in fade tests
2,000+ vehicles on road · fewer than 5 noise cases
Ideal for: Carbon-ceramic street cars, including Ferrari and Lamborghini CCB systems

CSI-01B 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.