Front Brake Kit – Part No: 140-12631
Call (805) 388-1188
Billet Superlite 4R/ST Front Caliper and Bracket Kit
Prod #: 140-12631
Price: $1,079.94

*NOTE: Brake Line Kit Needed.
Front Brake Kit — 140-12631

Kit Summary
Spindle Type:
Mount Type: Radial
Caliper Type: 4 - Black Anodize
Rotor Diameter:
Min Wheel Diameter Req'd*: 15
*This Brake Kit may fit 15-inch wheels. Please refer to the wheel clearance diagram to check to see if it will fit your specific wheel. Wheel Clearance Diagram
UPC Number
UPC 889545017182

WARNING: Cancer and Reproductive Harm
Applicable to Brake Pads Only

Billet Superlite 4R/ST Front Caliper and Bracket Kit

The Billet SL4R/ST caliper kit adds the versatility and convenience of radial mounting. SL4R/ST models feature Wilwood's exclusive Thermlock pistons. This multi-part piston design creates a highly efficient thermal barrier to further reduce heat transfer from the pads to caliper body, seals, and fluid. Cooler temperatures translate to longer service life and less chance for heat induced pedal fade. Included Radial bracket mounts simplifies adaptation and provides two planes of adjustment for accurate alignment over the disc. The key to the superior performance of the SL4R comes from the extremely durable and efficient body design. It is the product of computer generated solid modeling and FEA stress analysis technology. Full length stiffening ribs and a reinforced radial transition from the piston bore housings to the closed end bridges has produced the strongest SL caliper bodies ever built. Kit includes two calipers left and right and radial mount brackets to adapt to popular Late Model Circle track spindles with a bolt spacing of 3.50" center to center.

Fitment & Installation Details

Billet Superlite 4R/ST Front Caliper and Bracket Kit Assembly Schematic

Compatible Vehicles for this Brake Kit
BRAKE KIT:   Billet Superlite 4R/ST Front Caliper and Bracket Kit
This Brake Kit is Compatible with the Following Vehicle Makes:

Note: Kit may fit other vehicles, call Wilwood Sales⁄Tech Support at (805) 388-1188 for more information.

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This Hub Offset will move the wheels inward or outward from the fenderby this amount on each side of the vehicle
NOTE: Check "Figure 2. Wheel Clearance Diagram" in the installation Instructions below to verify you have adequate wheel clearance for this kit.

Wheel Clearance Assembly Instructions

Assembly Instructions

Kit Components & Specifications
Left Hand - Part No: 120-10694-RS
Right Hand - Part No: 120-10693-RS
Type: Billet Superlite 4R
Finish Color: Black Anodize
Piston Count: 4
Piston 1 Bore (in): 1.88
Piston 2 Bore (in): 1.62
Piston Area (In²): 4.84
Piston Type: Thermlock
Mount Type: Radial
Brake Pad Plate: 7420
Brake Pad Area (In²): 8.2
Brake Pad Volume (In³): 4.9
Pad Compound: N/A
Left Hand - Part No:
Right Hand - Part No:
Type: N-A
Surface Finish:
Outside Diameter (in):
Width (in):
Vane Count:
Design Type:
Dynamically Balanced:
Rotor Hats
Hat - Part No:
Finish Color:
Hat Offset Dimension (in):
Bolt Circle 1:
Bolt Circle 2:
Bolt Circle 3:
Stud Diameter - BC 1:
Stud Diameter - BC 2:
Stud Diameter - BC 3:
Hub - Part No:
Finish Color:
Mount Style:
Bolt Circle 1:
Bolt Circle 2:
Bolt Circle 3:
Stud Diameter - BC 1:
Stud Diameter - BC 2:
Stud Diameter - BC 3:

Parts & Accessories
Caliper Parts
O-ring Kit: 130-5100
Replacement Dustboot: N-A
Replacement Piston 1: 200-7550
Replacement Piston 2: 200-7553
Replacement Piston 3: N-A
Replacement Piston 4: N-A
CrossOver O-Ring Kit: N-A
Crossover Tube: 190-5975
Self-Bleeder Tube: 190-8310
Bridge Bolt Kit: 230-5978
Wear Plate - Left Hand: 300-5923
Wear Plate - Right Hand: 300-5922
Pad Retainer: N-A
Bleed Screw Kit: 220-6069
Brake Lines
Bolt Kit:
Bolt Kit:

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