Wilwood 140-17655-Y D31 Rear Disc Brake Kit with Flex Lines Yellow

The Wilwood D31 Rear Disc Brake Kit (140-17655-Y) delivers a direct-fit, high-performance braking upgrade engineered specifically for Porsche 911 models equipped with "M" 3.00" OEM rear calipers. Featuring forged aluminum D31 direct-mount calipers, this kit provides an outstanding combination of structural strength, reduced unsprung weight, and high-efficiency brake clamping force — all in a bold Yellow powder coat finish.

D31 Caliper Features:

• Lightweight forged aluminum body — just 4.1 lbs per caliper for maximum weight savings
• Machined stainless steel pistons for corrosion resistance and consistent clamping performance
• 2-piston design with identical 3.00" mounting centers, height, and offset as traditional Porsche 911 "M" calipers — a true direct-mount replacement
• Accepts standard Wilwood and FMSI D31 brake pads; compatible with factory master cylinder

Rotor Specifications:

• 11.42" diameter OEM replacement rotors
• Available in 0.79" or 0.95" thickness
• Rotor options: plain face surface or SRP directional drilled and slotted configuration for improved cooling and bite
• Black e-coat finish for corrosion protection

Kit Includes:

• Pair of D31 forged aluminum calipers in Yellow powder coat finish
• D31 brake pads in BP-10 compound
• 11.42" diameter iron alloy rotors
• DOT-compliant stainless braided brake hoses (Flexlines)

The Yellow powder coat finish (suffix "-Y") is a special-order color option. D31 calipers are also available in Black and Red powder coat as standard offerings, and can be special-ordered in Type III hard anodize or any of Wilwood's additional special powder coat colors. This complete rear disc brake kit is an ideal performance upgrade or OEM replacement for classic air-cooled Porsche 911s using the 3.00" "M" mount caliper configuration.