Wilwood 140-17656-R D31 Rear Disc Brake Kit with SRP Drilled Rotors Red Caliper

The Wilwood 140-17656-R is a complete D31 rear disc brake kit engineered as a direct-fit replacement for Porsche 911 models equipped with "M" 3.00" OEM rear calipers. Designed to deliver superior stopping power, reduced unsprung weight, and a precise factory-style fit, this kit is an ideal upgrade for both street performance and track day use.

At the heart of the kit are Wilwood's forged aluminum D31 direct-mount calipers, featuring a lightweight 4.1 lb. forged aluminum body fitted with machined stainless steel pistons. The D31 caliper uses the same 3.00" mounting centers, height, and offset as the traditional Porsche 911 "M" calipers, ensuring a true bolt-on installation without modifications to the OEM mounting points.

Kit Contents:

• D31 2-Piston Forged Aluminum Calipers — finished in Red powder coat
• BP-10 Compound Brake Pads — standard D31 spec pads compatible with Wilwood and FMSI D31 pad applications
• 11.42" Diameter SRP Directional Drilled and Slotted Rotors — available in 0.79" or 0.95" thickness with a protective black e-coat finish
• DOT-Compliant Stainless Braided Brake Hoses — for improved pedal feel and long-term durability

Caliper Finish Options:

• Standard: Black or Red powder coat (this listing: Red)
• Special order: Yellow powder coat, Type III hard anodize, or custom powder coat colors (additional charge applies)

Rotors are offered in two configurations: a plain face surface for OEM-style replacement, or the SRP directional drilled and slotted design for enhanced heat dissipation and improved wet-weather braking. All rotors feature a black e-coat finish to resist corrosion.

This kit replaces the OEM rear brake assembly with premium Wilwood components while retaining full compatibility with the factory master cylinder and brake bias setup. The D31 brake pad format is widely available and compatible with both Wilwood and FMSI standard D31 replacement pads.