Wilwood Front 15.00-Inch GT Rotor & Red Caliper Kit, Chevrolet Silverado HD / GMC Sierra HD / Suburban 3500 HD (2011–2019)

For Chevrolet Silverado HD / GMC Sierra HD / Suburban 3500 HD (2011–2019), 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: 140-17643-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.
• Hardware and retained components: Mounting hardware supplied; existing wheel hubs retained; spindles, master cylinder and brake booster are not included.
• Supplied friction pads: BP-22 compound; match operating conditions to the intended use.
• Rotor specification: Material: Iron; Type: GTB Vented Rotor & Hat; Style: GT Slotted; Surface Finish: Black Electro Coat.
• Wheel envelope: 20-inch minimum nominal wheel diameter; verify the entire wheel-clearance drawing, including spoke and barrel shape.
• Brake rotor size: 15.00-inch outside diameter × 1.50-inch thickness; vented friction section.
• Service calipers: TX6-DM; 6 pistons per caliper; Red Powder Coat; lug mounting; stainless pistons.
• Hydraulic sizing: cataloged bore sizes 2.00, 1.88, 1.88 inches; piston area 8.70 square inches; inlet 1/8-27 NPT.

Fitment & Compatibility

The table below includes Silverado and Sierra 2500/3500 HD trucks plus the specified 2016–2019 Chevrolet Suburban 3500 HD. Check the actual year, drive arrangement and single-rear-wheel qualification where listed. DS1585 documents the factory upright, eight-lug hub interface and included hoses for this generation. Confirm the rotor register and full 20-inch wheel drawing; this is not a general half-ton SUV kit.

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.