Wilwood 120-9703-RD is a Dynapro lug mount four-piston caliper in red powder coat, forged from aluminum billet. It has 1.38 in stainless steel pistons, fits 0.81 in wide rotors up to 13.06 in diameter, and mounts on 5.25 in centers. It takes the 7812 pad plate, retained from the top with Quick-E-Clip pad retainers for service without removing the caliper.
Notes:
- Universal mount side; one caliper per listing.
- Other finishes: 120-9703 (black) and 120-9703-SI (anodized).
Specifications:
- Brand: Wilwood
- Part Number: 120-9703-RD
- Caliper: Dynapro Lug Mount
- Color / Finish: Red Powder Coat
- Material: Forged Aluminium
- Piston Count: 4
- Piston Bores (in): 1.38, 1.38
- Piston Area (in²): 3.00
- Piston Type: Stainless
- Dust Boot: No
- Rotor Width (in): 0.81
- Minimum Rotor Width (in): 0.75
- Maximum Rotor Width (in): 0.83
- Minimum Rotor Diameter (in): 10.00
- Maximum Rotor Diameter (in): 13.06
- Brake Pad Type: 7812
- Pad Area (in²): 6.36
- Pad Volume (in³): 2.1
- Mount Type: Lug
- Mount Side: Universal
- Mount Center (in): 5.25
- Mount Hole Size (in): 0.39
- Mount Height (in): 2.10
- Inlet Thread Size: 1/8-27 NPT
- Weight (lbs): 3.8
FAQ
What rotor size does Wilwood 120-9703-RD fit?
It is designed for 0.81 in wide rotors and accepts rotor widths from 0.75 in to 0.83 in and diameters from 10.00 in to 13.06 in.
What brake pads fit the 120-9703-RD caliper?
It uses the 7812 pad plate. Wilwood offers 7812 pads in compounds including BP-10, BP-20, BP-28, BP-30, BP-40 and others.
What is the mount spacing?
The caliper is a lug mount design with 5.25 in mount centers, 0.39 in mount holes and a 2.10 in mount height.
What is the inlet thread size?
The inlet thread is 1/8-27 NPT.
