Wilwood 140-17656-Y D31 Rear Disc Brake Kit with Yellow Calipers and Stainless Flex Lines

The Wilwood 140-17656-Y is a complete D31 rear disc brake kit engineered as a direct-mount replacement for Porsche 911 models equipped with factory "M" 3.00" OEM rear calipers. This kit delivers a significant upgrade in braking strength, efficiency, and weight savings over stock components while maintaining full OEM dimensional compatibility.

At the heart of the kit are Wilwood's forged aluminum D31 direct-mount calipers finished in a striking Yellow powder coat. Each caliper features a high-strength, lightweight 4.1 lb. forged aluminum body fitted with precision-machined stainless steel pistons. The D31 calipers share the same 3.00" mounting centers, height, and offset as the traditional Porsche 911 "M" calipers, ensuring a bolt-on fit without modifications.

Kit Includes:

• Pair of D31 2-piston direct-mount calipers in Yellow powder coat finish
• D31 brake pads in BP-10 compound
• OEM replacement rotors — 11.42" diameter, available in 0.79" or 0.95" thickness
• Rotor surface option: plain face or SRP directional drilled and slotted with black e-coat finish
• DOT-compliant stainless braided brake hoses

Finish & Customization Options:

• Standard finishes: Black and Red powder coat
• Special order: Yellow powder coat (this kit), Type III hard anodize, or additional custom powder coat colors (extra charge may apply)

The Wilwood D31 rear brake kit is an ideal upgrade for Porsche 911 owners seeking improved braking performance, reduced unsprung weight, and a premium appearance. Calipers accept standard Wilwood and FMSI D31 brake pads and are compatible with the factory master cylinder for a seamless installation.