Fitment questions?
Call (855) 786-7101 or text (801) 304-3141. We check fitment by VIN.
Product details
The Wilwood Forged Dynalite Internal is specified for 1.10-inch rotor width, 5.25-inch lug mounting and 1.75-inch piston bores. This Type III anodized 4-piston component is selected by brake-system geometry rather than vehicle year alone. Founded in 1977 by Bill Wood, Camarillo, California-based Wilwood Engineering manufactures disc brake components for motorsport, street-performance and specialized uses. Its range covers calipers, rotors, master cylinders, valves, fittings and brake lines.
This four-piston Dynalite uses internal fluid transfer in a spacerless body. Its 5.25-inch mounting pattern is only one compatibility dimension: rotor position, body clearance and hydraulic area also need to agree.
Technical Details
- Manufacturer part number: 120-13846
- Component: Wilwood Forged Dynalite Internal; one caliper
- Piston arrangement: 4 pistons; 1.75-inch bores; stainless steel
- Hydraulic piston area: 4.80 square inches, as specified by Wilwood
- Pad shape: Wilwood type 7112; compound selected separately
- Mounting: universal side configuration; Lug; 5.25-inch centers; 0.39-inch mounting holes
- Mount height: 2.03 inches
- Rotor width: 1.10-inch nominal; 1.05–1.13-inch permitted range
- Rotor diameter range: 10.00–13.06 inches
- Fluid inlet: 1/8-27 NPT
- Dust boots: No
- Body and finish: Forged aluminum; Type III anodized
Fitment & Compatibility
Select pads by the specified friction shape and intended operating temperature. Check the wheel template with the actual rotor, hat and bracket before finalizing the installation.
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.
