Wilwood 120-8373 is a PS-1 compact, low profile two-piston caliper for the right hand side, with a clear anodize finish. It uses 1.12 in stainless steel deep cup pistons to limit heat transfer from the 0.30 in thick pad to the brake fluid, with high temperature square piston seals that control piston retraction. Internal crossover passages replace external crossover tubes. It fits 0.19 in wide rotors (0.15 in to 0.20 in) from 6.00 in to 9.00 in in diameter, mounts on 2.50 in lug centers and has a M10 x 1.25 inlet.
Notes:
- Right Hand caliper. The matching left hand caliper is 120-8374.
- Uses the 4108 pad plate (CM Composite Metallic pad set 150-4091K). Seal service: O-ring kit 130-2579.
Specifications:
- Brand: Wilwood
- Part Number: 120-8373
- Caliper: PS-1
- Color / Finish: Clear Anodize
- Material: Forged Aluminium
- Piston Count: 2
- Piston Bores (in): 1.12
- Piston Area (in²): 0.99
- Piston Type: Stainless
- Dust Boot: No
- Rotor Width (in): 0.19
- Minimum Rotor Width (in): 0.15
- Maximum Rotor Width (in): 0.20
- Minimum Rotor Diameter (in): 6.00
- Maximum Rotor Diameter (in): 9.00
- Brake Pad Type: 4108
- Pad Area (in²): 2
- Pad Volume (in³): 0.36
- Mount Type: Lug
- Mount Side: Right Hand
- Mount Center (in): 2.50
- Mount Hole Size (in): 0.32
- Mount Height (in): 1.22
- Inlet Thread Size: M10 x 1.25
- Weight (lbs): 1.1
- O-Ring Kit: 130-2579
FAQ
What rotor size does Wilwood 120-8373 fit?
It is built for 0.19 in wide rotors, accepting widths from 0.15 in to 0.20 in and diameters from 6.00 in to 9.00 in.
Is this a left or right caliper?
It is the right hand caliper. The left hand version is 120-8374.
What brake pads fit the PS-1?
It uses the 4108 pad plate. The listed pad set is 150-4091K in CM Composite Metallic compound.
What is the mount spacing and inlet?
It is a lug mount caliper with 2.50 in mount centers, 0.32 in mount holes and a 1.22 in mount height, with a M10 x 1.25 inlet.
