Fitment questions?
Call (855) 786-7101 or text (801) 304-3141. We check fitment by VIN.
Product details
Wilwood pairs Thermlock pistons with the larger 1.75/1.38/1.38-inch bore layout in this right AERO6/ST. The six-piston caliper has a hard-anodized forged body and a type 6620 pad configuration for the specified nominal 1.25-inch rotor width. Bill Wood founded Wilwood Engineering in 1977, and the company is based in Camarillo, California. It designs and manufactures disc brake systems and a component range of calipers, brake rotors, master cylinders, valves, fittings and brake lines serving motorsport, street-performance and specialized installations.
Technical Details
- Manufacturer part number: 120-13301. Component: Aero6 Radial Mount caliper.
- Supply: one brake caliper, not a complete axle brake kit. Match the mating rotor, pads, bracket and connection hardware to the installation.
- Pistons: 6 Thermlock; bore specification: 1.75/1.38/1.38 inches. Effective piston area: 5.40 sq in.
- Mounting: radial, 7.09-inch centers; right hand orientation. Mount holes: 0.45 inch; height: 2.09 inches.
- Rotor compatibility: nominal width 1.25 inch; diameter 12.19–15.00 inches. Specified rotor-width limits: 1.10–1.28 inch.
- Piston dust boots: not fitted.
- Compatible brake pad shape: 6620; choose the required compound for the brake system.
- Hydraulic inlet thread: 1/8-27 NPT. Use a fitting with the correct thread and sealing seat.
- Body: forged aluminum; finish: Type III anodize.
- Caliper weight: approximately 7.1 lb.
Fitment & Compatibility
Include the piston area in the master-cylinder and brake-balance calculation. Confirm radial mounting at 7.09-inch centers and check that the rotor diameter, bracket height and wheel envelope agree with the caliper drawing.
For a replacement or custom installation, send PMB Performance the brake dimensions and existing component identification. Our 20+ years of experience can help narrow down the correct combination.
