Wilwood Front Six-Piston GT Brake Conversion, Red TX6R Calipers, Ram 1500 TRX (2021–2024)

This Wilwood TX6R front brake kit pairs red 6-piston calipers with 16.00-inch gt slotted brake rotors for Ram 1500 TRX (2021–2024). The package must match the documented mounting arrangement and wheel clearance before the original brakes are removed. Wilwood Engineering was founded by Bill Wood in 1977 and is based in Camarillo, California. Its disc-brake systems and components serve motorsport, street-performance and specialized applications. The range includes calipers, brake rotors, master cylinders, valves, fittings and brake lines, selected to suit the requirements of the complete system.

Technical Details

• Manufacturer part number: 140-17389-R; supplied as an axle kit.
• Hardware and retained components: Mounting hardware supplied; existing wheel hubs retained; spindles, master cylinder and brake booster are not included.
• Rotor specification: Material: Spec-37 Iron; Type: GT 60 Curved Vane; Style: GT Slotted; Surface Finish: Black Electro Coat.
• Rotor/hat mounting-hole pattern: 6 X 5.5 in; 6 X 139.7 mm; cataloged hole clearances 0.630 in; 16.00 mm. These are rotor or hat drillings, not replacement wheel studs. The retained hub or axle determines the vehicle wheel pattern.
• Hydraulic lines: Braided flexlines included; verify fittings, length and routing on the actual vehicle.
• Hydraulic sizing: cataloged bore sizes 1.75, 1.62, 1.62 inches; piston area 6.52 square inches; inlet 1/8-27 NPT.
• Wheel envelope: 20-inch minimum nominal wheel diameter; verify the entire wheel-clearance drawing, including spoke and barrel shape.
• Brake rotor size: 16.00-inch outside diameter × 1.38-inch thickness; vented friction section.
• Rotor hats: Aluminum truck hat - standard; Black E-Coat; hat offset 0.810 inches. Hat offset is distinct from axle offset.
• Supplied friction pads: BP-22 compound; match operating conditions to the intended use.
• Service calipers: TX6R; 6 pistons per caliper; Red Powder Coat; radial mounting; stainless pistons.

Fitment & Compatibility

This front package is for the Ram 1500 TRX applications below. Confirm TRX suspension/upright and hub configuration against DS1501; model 1500 alone does not establish fitment. The 16-inch rotor is a brake dimension, with a 20-inch minimum nominal wheel subject to the full clearance drawing. Verify the six-lug hat drilling against the retained wheel hub and route the included braided lines through full travel. Use the fitment table below to check the complete application and option notes.

A VIN helps identify the original specification; measured hardware matters after a conversion. PMB Performance draws on more than 20 years of experience when reviewing those details.

Review Installation instructions for the complete installation and clearance requirements.

Manufacturer Warning

Applicable to brake pads only. WARNING: This product can expose you to chemicals including Arsenic, Cadmium, Chromium (Hexavalent compounds), Lead, Nickel, Cobalt and Antimony Trioxide which are known to the State of California to cause cancer or other reproductive harm. For more information go to www.p65warnings.ca.gov.