Wilwood 140-17697 TX6-DM Big Brake Rear Kit 15.50in for 23-24 Ford F-250/F-350

Vehicle Fitment

• 2023-2024 Ford F-250 Super Duty (4WD, All Trims)
• 2023-2024 Ford F-350 Super Duty (4WD, SRW, All Trims)

Fitment Notes

• Fits 4WD models only - does not fit 2WD F-250 or F-350
• Does not fit F-350 Dually (DRW) models
• Does not fit models equipped with OEM electronic parking brake (no mechanical cable at rear hub)
• Requires 20" minimum wheel diameter - verify clearance using Wilwood's wheel clearance diagram prior to purchase
• Braided stainless steel flex lines (Wilwood 220-14166) must be purchased separately for some applications

Features

• TX6-DM radial mount six-piston calipers deliver extreme stopping power purpose-built for heavy-duty trucks
• Massive 15.50" GT-60 directional vane Spec-37 alloy rotor provides superior heat dissipation under sustained braking
• Calipers are volume-matched to OE power brake system output - fully compatible with factory master cylinder and ABS
• Replaces factory rear disc brakes while retaining the OE mechanical parking brake assembly
• Black powder coat caliper finish provides a durable, corrosion-resistant appearance
• Slotted rotor surface evacuates heat, gas, and debris for consistent fade-resistant performance under towing and hauling loads
• Includes all necessary radial mount caliper brackets and hardware for a complete bolt-on installation
• Engineered and manufactured in the USA by Wilwood Engineering in Camarillo, California

Specifications

• Position: Rear
• Caliper Type: TX6-DM Radial Mount, 6-Piston
• Caliper Finish: Black Powder Coat
• Rotor Diameter: 15.50 in. (393.7 mm)
• Rotor Style: Slotted, Vented
• Rotor Material: GT-60 Directional Vane Spec-37 Alloy
• Minimum Wheel Diameter: 20 in.
• Caliper Mount: Radial
• Brake Pad Compound: BP-20 Metallic

Included Components

• 2x TX6-DM 6-Piston Rear Brake Calipers (Black Powder Coat)
• 2x 15.50 in. Slotted Vented Rotors
• 1x Set BP-20 Metallic Brake Pads
• 2x Radial Mount Caliper Brackets
• 1x Complete Hardware Kit (bolts, washers, and installation hardware)

Product Description

The Wilwood 140-17697 TX6-DM Big Brake Rear Kit is purpose-built for 2023-2024 Ford F-250 and F-350 Super Duty 4WD trucks that demand elite stopping performance. Featuring TX6-DM radial mount six-piston calipers paired with a massive 15.50" GT-60 directional vane Spec-37 alloy slotted rotor, this kit delivers consistent, fade-resistant braking under the extreme demands of towing, hauling, and heavy payload operation. The calipers are volume-matched to the factory brake system, maintaining full OE master cylinder compatibility and ABS function with no modifications required.

This rear kit is designed to replace the factory disc brakes while preserving the OE mechanical parking brake. All radial mount caliper brackets and installation hardware are included for a clean, bolt-on fit. A minimum 20" wheel diameter is required, and buyers should verify wheel interior clearance using Wilwood's published clearance diagram before ordering. Note that this kit does not support models with factory electronic parking brake systems or Dually (DRW) rear axle configurations. Braided stainless steel flex lines are available separately and recommended for a complete installation.