Fitment questions?
Call (855) 786-7101 or text (801) 304-3141. We check fitment by VIN.
Product details
This Billet Go-Kart and Junior Dragster caliper is a racing component for a nominal 0.12-inch-wide rotor. Two stainless pistons use Wilwood’s retracting and adjusting arrangement, and the caliper is supplied with brake pads. Its 2.25-inch lug spacing and compact body must be matched to the kart or dragster’s brake mount. Founded in 1977 by Bill Wood, Wilwood Engineering is based in Camarillo, California. Its disc brake systems and components serve motorsport, street-performance and specialized applications. Calipers, brake rotors, master cylinders, valves, fittings and brake lines are among its products, selected according to the complete brake system’s requirements.
Technical Details
- Manufacturer part number: 120-5498
- Caliper type: Billet Go-Kart
- Construction: Billet Aluminium
- Finish: Type III Anodize
- Piston bores: 1.00 inches
- Piston type: Stainless
- Piston count: 2
- Published piston area: 0.79 square inches
- Dust boots: No
- Nominal rotor width: 0.12 inch
- Rotor thickness limits: 0.10–0.12 inches
- Rotor diameter limits: 8.00–8.75 inches
- Mounting style: Body
- Handedness: Not restricted to one side; correct mounting and bleed orientation required
- Mounting centers: 2.25 inches
- Mounting-hole size: 0.39 inch
- Hydraulic inlet thread: 1/8-27 NPT
- Required pad shape: 4308
- Published pad area: 1.88 square inches
- Published pad volume: 0.34 cubic inches
- Manufacturer-listed component weight: 1.5 lb
Fitment & Compatibility
Select the exact thin-rotor version rather than the wider kart calipers in the same family. Confirm the 8.00–8.75-inch rotor diameter envelope, mounting offset and pad overlap, then check the master-cylinder and hydraulic connection. Fitment depends on the racing chassis and installed components, with clearance needed for the complete caliper and line.
For help identifying the correct brake component, provide the caliper markings and installation dimensions. PMB Performance has over 20 years of experience with parts and brake-system details.
Brake-pad warning: Cancer and Reproductive Harm. www.P65Warnings.ca.gov. This warning applies to the brake pads.
