Wilwood 140-17656 D31 Rear Disc Brake Kit with Stainless Flex Lines

The Wilwood 140-17656 is a complete D31 rear disc brake kit engineered as a direct-mount upgrade for Porsche 911 models equipped with OEM "M" 3.00" rear calipers. Utilizing forged aluminum D31 direct-mount calipers, this kit delivers exceptional strength, reduced unsprung weight, and high-efficiency brake clamping performance over stock components.

D31 Caliper Features:

• Lightweight forged aluminum body — just 4.1 lbs per caliper for significant weight savings
• Machined stainless steel pistons for long-term durability and corrosion resistance
• 3.00" mounting centers — matches the same height and offset as OEM Porsche 911 "M" calipers for direct bolt-on fitment
• Compatible with Wilwood and FMSI standard D31 brake pads
• Available in Black or Red powder coat finish; Yellow powder coat and Type III hard anodize available as special-order options

Rotor Specifications:

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

Kit Includes:

• Matched pair of D31 rear calipers (left and right)
• D31 brake pads in BP-10 compound
• OEM-replacement rotors (style and thickness per selection)
• DOT-compliant stainless braided brake hoses

The Wilwood 140-17656 D31 rear brake kit is compatible with the factory master cylinder and requires no modifications for installation, making it an ideal performance brake upgrade for classic air-cooled Porsche 911 enthusiasts seeking modern stopping power with a factory-correct fit.