Wilwood Front 13.38-Inch GT Brake Package, Red Calipers, Ford Bronco 2.3L with Vacuum Booster (2021–2025)

For Ford Bronco 2.3L with Vacuum Booster (2021–2025), this front AERO6-DM kit uses red Wilwood calipers and gt slotted rotors. Its 6-piston hydraulic layout and 13.38-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: 140-17512-R; supplied as an axle kit.
• Hydraulic sizing: cataloged bore sizes 1.75, 1.62, 1.62 inches; piston area 6.52 square inches; inlet 1/8-27 NPT.
• Hydraulic lines: Braided flexlines included; verify fittings, length and routing on the actual vehicle.
• Rotor specification: Material: Iron; Type: GTB Vented Rotor & Hat; Style: GT Slotted; Surface Finish: Black Electro Coat.
• Service calipers: AERODM; 6 pistons per caliper; Red Powder Coat; lug mounting; stainless pistons.
• Supplied friction pads: BP-22 compound; match operating conditions to the intended use.
• Rotor/hat mounting-hole pattern: 6 x 5.5 in; 6 x 139.7 mm; cataloged hole clearances 0.52 in; 13.21 mm. These are rotor or hat drillings, not replacement wheel studs. The retained hub or axle determines the vehicle wheel pattern.
• Wheel envelope: 17-inch minimum nominal wheel diameter; verify the entire wheel-clearance drawing, including spoke and barrel shape.
• Hardware and retained components: Mounting hardware supplied; existing wheel hubs retained; spindles, master cylinder and brake booster are not included.
• Brake rotor size: 13.38-inch outside diameter × 1.25-inch thickness; vented friction section.

Fitment & Compatibility

Only the 2.3L Ford Bronco with a vacuum brake booster is suitable for this kit. Wilwood specifically excludes the 2.7L e-booster system and any Bronco fitted with an e-booster. Match the trim and year in the table below, verify the actual booster before purchase, then check the factory front upright and 17-inch wheel drawing in DS1565. This is not a Bronco Sport application.

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.