Wilwood Red Left Front TX6-DM Caliper for Ford F-250/F-350 4WD, 8.70-Square-Inch Effective Area: Red TX6-DM caliper in an angled view, with white Wilwood lettering and six-piston text.

Wilwood Red Left Front TX6-DM Caliper for Ford F-250/F-350 4WD, 8.70-Square-Inch Effective Area

SKU: 120-17689-RD

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Product details

A nominal 1.50-inch rotor channel and 12.68-inch direct-lug centers define this red left front Wilwood TX6-DM. It is the six-piston front component documented for 2023-and-later Ford F-250/F-350 4WD trucks. The forged body carries stainless pistons and dust boots, with hydraulic sizing fixed by the 8.70-square-inch effective area. From its base in Camarillo, California, Wilwood Engineering designs and manufactures disc brake systems and components. Bill Wood founded the company in 1977; its motorsport, street-performance and specialized range includes calipers, brake rotors, master cylinders, valves, fittings and brake lines.

Technical Details

  • Manufacturer part number: 120-17689-RD. Type: TX6-DM Forged Lug Mount caliper.
  • Caliper body: forged aluminum; finish: Red Powder Coat.
  • Piston arrangement: 6 stainless steel pistons; bore specification 2.00/1.88/1.88 inches. Effective piston area: 8.70 square inches.
  • Mounting: lug, 12.68-inch centers; orientation: left hand.
  • Component: one individual hydraulic brake caliper. Select the mating rotor, pads, mounting hardware and line connection to suit the complete brake assembly.
  • Rotor channel: 1.50-inch nominal width. Specified width limits: 1.42–1.50 inch; rotor outside diameter: 15.00 inches.
  • Brake pad shape: 10120. Choose pad dimensions and friction material for the brake system.
  • Caliper component weight: approximately 14.4 lb.
  • Hydraulic inlet thread: 1/8-27 NPT. Match the fitting thread and sealing arrangement to the brake hose.
  • Piston dust boots: yes.

Fitment & Compatibility

Match the later 4WD spindle, the Wilwood 15.00-inch rotor and the specified front hose package. Check wheel clearance with the complete assembly in place, ensuring the left-hand caliper sits on the correct side and its bleed connection remains accessible.

PMB Performance brings over 20 years of experience to brake-component selection. Share the installed caliper, rotor size and mounting arrangement so the relevant dimensions can be compared.