Fitment questions?
Call (855) 786-7101 or text (801) 304-3141. We check fitment by VIN.
Product details
The right-hand AT6 is an off-road racing caliper with six stainless pistons in a forged, Type III anodized body. Its 1.75/1.38/1.38-inch differential bore arrangement provides the specified 5.40-square-inch hydraulic area, while the narrow rotor channel is nominally 0.72 inch wide. A removable bridge gives access to the pads, and the 6.88-inch lug pattern must match the race upright or mounting bracket. Wilwood Engineering’s disc brake range includes calipers, rotors, master cylinders, valves, fittings and brake lines. Bill Wood founded the company in 1977 in California; it is based in Camarillo and serves motorsport, street-performance and specialized brake applications.
The AT6 six-piston racing caliper was developed for off-road trucks and buggies. A removable bridge gives top access to type 7516 pads, and the 6.88-inch lug pattern must align with the intended race upright or bracket.
Technical Details
- Manufacturer part number: 120-14850
- Component: Wilwood AT6 Off-Road; one caliper
- Mounting: Right hand; Lug; 6.88-inch centers; 0.39-inch mounting holes
- Piston arrangement: 6 pistons; 1.75/1.38/1.38-inch bores; stainless steel
- Hydraulic piston area: 5.40 square inches, as specified by Wilwood
- Rotor width: 0.72-inch nominal; 0.66–0.72-inch permitted range
- Rotor diameter range: 12.30 inches
- Pad shape: Wilwood type 7516; compound selected separately
- Body and finish: Forged aluminum; Type III anodized
- Fluid inlet: 1/8-27 NPT
- Dust boots: No
- Mount height: 2.62 inches
Fitment & Compatibility
Check the right-hand mounting drawing against the upright before selecting this AT6: the specified rotor diameter is 12.30 inches and the permitted width is 0.66–0.72 inch. Confirm the pad track, 2.62-inch mount height and body clearance with the rotor positioned on its actual hub or hat. The hydraulic system must suit the differential bores, and the 1/8-27 NPT flexline needs a clear route through the suspension movement.
This listing covers one caliper. Match the brake pads, rotor, hose and mounting arrangement to the complete brake system.
With over 20 years of experience, PMB Performance can help compare piston configuration and mounting geometry. Share the existing brake package and measured rotor dimensions before ordering.
