Wilwood Front GT Rotor & Red TX6-DM Caliper Kit for Chevrolet Silverado / GMC Sierra 2500/3500 HD (2020–2025)

For Chevrolet Silverado / GMC Sierra 2500/3500 HD (2020–2025), this front TX6-DM kit uses red Wilwood calipers and gt slotted rotors. Its 6-piston hydraulic layout and 15.00-inch rotor diameter need to be checked against the actual hub, upright and wheel arrangement. Bill Wood founded Wilwood Engineering in 1977. Based in Camarillo, California, the company makes disc-brake systems for street-performance, motorsport and specialized applications. Its calipers, brake rotors, master cylinders, valves, fittings and brake lines are selected around the demands of the complete braking installation.

Technical Details

• Manufacturer part number: 140-17468-R; supplied as an axle kit.
• Rotor/hat mounting-hole pattern: 8 x 7.087 in; 8 x 180.01 mm; cataloged hole clearances 0.64 in; 16.26 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.
• Wheel envelope: 20-inch minimum nominal wheel diameter; verify the entire wheel-clearance drawing, including spoke and barrel shape.
• Rotor specification: Material: Iron; Type: GTB Vented Rotor & Hat; Style: GT Slotted; Surface Finish: Black Electro Coat.
• Hardware and retained components: Mounting hardware supplied; existing wheel hubs retained; spindles, master cylinder and brake booster are not included.
• Hydraulic sizing: cataloged bore sizes 2.00, 1.88, 1.88 inches; piston area 8.70 square inches; inlet 1/8-27 NPT.
• Service calipers: TX6-DM; 6 pistons per caliper; Red Powder Coat; lug mounting; stainless pistons.
• Supplied friction pads: BP-22 compound; match operating conditions to the intended use.
• Brake rotor size: 15.00-inch outside diameter × 1.50-inch thickness; vented friction section.

Fitment & Compatibility

DS1583 documents 2020-on Chevrolet Silverado and GMC Sierra 2500/3500 HD front brake hardware, with the eight-lug rotor and factory upright. The table below also names 1987 Chevrolet V10 Pickup and V10 Suburban; those applications need direct technical confirmation and are not established by the HD-truck installation instructions. Do not order for either V10 on model/year alone. Check hub registration, stud clearance and the full 20-inch wheel drawing.

Talk to PMB Performance about the installed brake arrangement if you need a fitment check. Over 20 years of parts experience informs our review of your VIN, photos and component dimensions.

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.