Wilwood Ford F-250/F-350 Super Duty 4WD Rear Brake Conversion, Red TX6-DM and 15.50-Inch Rotors (2023–2025)

Convert listed F-250 and F-350 Super Duty rear brakes with red six-piston calipers and slotted rotors. Verify wheel space and shield trimming. The conversion combines the caliper, pad and rotor configuration specified for this axle and mounting arrangement. Wilwood Engineering was established in 1977 by Bill Wood and is based in Camarillo, California. Disc brake systems and components are its focus, from brake rotors and calipers to master cylinders, valves, brake lines and fittings. Its work spans motorsport, street-performance and specialized applications, with the complete brake system determining the correct individual components.

Technical Details

• Caliper attachment: Lug
• Brake pads supplied: BP-22
• Piston type: Stainless
• Service-caliper port: 1/8-27 NPT
• Rotor assembly specification: 15.50 × 1.38 inches; Iron; GT Slotted
• Wheel envelope: 20 in; the complete wheel-clearance drawing determines fit
• Rotor attachment pattern: 8 x 6.69 in; 8 x 169.93 mm; verify the retained hub or axle flange separately
• Hydraulic hose selection: Included; confirm correct routing and hard-line connection
• Hardware provision: Included; verify the installed fastener engagement
• Not included: spindles, wheel hubs, master cylinder or brake booster
• Manufacturer identification: 140-17697-R
• Application and supplied quantity: rear conversion kit; Sold as a kit.
• Hydraulic service-caliper specification: TX6-DM; 6 pistons per caliper; Red Powder Coat

Fitment & Compatibility

For the listed 2023–2025 Ford F-250 Super Duty 4WD and F-350 Super Duty 4WD single-rear-wheel configurations. Verify the exact axle position, eight-lug hub and factory brake arrangement. The rear dust shield must be trimmed as shown in DS-1599 to clear the new caliper brackets. A nominal 20-inch wheel is only a starting point: spoke shape, balance weights and inside-barrel clearance must also be verified. This kit supplies braided flexlines. Use the fitment table below to confirm the individual model, year, submodel and brake-option restrictions.

Wilwood product specifications · Wilwood installation and compatibility information · Wilwood installation and compatibility information

For help matching the brake assembly, contact PMB Performance with the VIN, original brake package, axle position and wheel-clearance measurements. We have over 20 years of experience working through parts and fitment details.

Manufacturer warning — brake pads only: WARNING: Cancer and Reproductive Harm. www.P65Warnings.ca.gov.