Wilwood Black Left Front TX6-DM Caliper, GM 2500/3500 2011–2019 / 11.22-Inch Lug Pattern

This black left front Wilwood TX6-DM combines a forged body with six stainless pistons and fitted dust boots. Its 11.22-inch direct-lug attachment is the configuration documented for the 2011–2019 GM 2500/3500 brake conversion. Bill Wood established Wilwood Engineering in 1977. Based in Camarillo, California, the company designs and manufactures disc brake systems for motorsport, street-performance and specialized use, including calipers, brake rotors, master cylinders, valves, fittings and brake lines.

Technical Details

• Manufacturer part number: 120-17642-BK. Type: TX6-DM Forged Lug Mount caliper.
• Hydraulic inlet thread: 1/8-27 NPT. Match the fitting thread and sealing arrangement to the brake hose.
• Attachment geometry: lug mount with 11.22-inch centers; left hand.
• Bore sequence 2.00/1.88/1.88 inches across 6 pistons. Piston construction: stainless steel; specified effective area 8.70 square inches.
• Rotor dimensions: outside diameter 15.00 inches; nominal width 1.50 inch, with width limits of 1.42–1.50 inch.
• Construction and surface: forged aluminum, finished in Black Powder Coat.
• Piston dust boots: yes.
• Pad fit uses shape 10120. Match the pad to the rotor and intended operating conditions.
• Caliper component weight: approximately 14.6 lb.
• Component: one individual hydraulic brake caliper. Select the mating rotor, pads, mounting hardware and line connection to suit the complete brake assembly.

Fitment & Compatibility

Match the rotor's nominal 1.50-inch width, offset and 15.00-inch diameter to the installed package. Check flexline fittings and the intended wheel for clearance around the caliper and pad-retaining hardware before assembly.

For help matching this caliper, contact PMB Performance with the brake-package details and rotor measurements. Our team has more than 20 years of experience with brake parts and fitment.