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Instruction Sheets for Part Number WIL-140-15815
Wilwood Forged Superlite 4 Radial Sprint Inboard Rear Brake Kits 140-15815
Part Number: WIL-140-15815
Wilwood Forged Superlite 4 Radial Sprint Inboard Rear Brake Kits
KIT,SPRINT,FSL4R,INBOARD,VENTED ROTOR
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Estimated Ship Date: Oct 28, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
140-15815
Part Type:
Product Line:
Summit Racing Part Number:
WIL-140-15815
UPC:
889545092448
Position:
Rear
Front Rotor Included:
No
Rear Rotor Included:
Yes
Rear Rotor Style:
Solid surface
Rear Rotor Construction:
Vented
Rear Rotor Diameter:
12.19 in./309.63mm
Rear Rotor Thickness (in.):
1.25
Front Caliper Included:
No
Rear Caliper Included:
Yes
Rear Caliper Piston Quantity:
Four
Rear Caliper Material:
Forged billet aluminum
Rear Caliper Color:
Gray/Silver
Brake Pads Included:
Yes
Friction Material Name:
BP-40
Parking Brake Provision:
No
Offset (in.):
0.000 in.
Front Spindles Included:
No
Master Cylinder Included:
No
Brake Booster Included:
No
Remanufactured:
No
Brake Hoses Included:
No
Quantity:
Sold as a kit.
Notes:
Fits sprint inboard 48 spline.
Wilwood Forged Superlite 4 Radial Sprint Inboard Rear Brake Kits
Wilwood Forged Superlite 4 Radial Sprint inboard rear brake kits fully engineered bolt-on brake systems for Sprint car quick-change rears with 3.00 x 46 splined axles. With vented rotors and dynamic-mount rotor axle clamps, these kits offer the lowest rotating weight available for Sprint racing.
The lightweight advantages of Wilwood Sprint rotors are fortified with the high durability, long wear, and superior heat control properties of advanced materials. Redesigned Type III hard anodize forged Superlite 4 radial-mount calipers with BP-40 pads, produce superior stopping power and consistent fade-free response. Kit includes axle clamp with dual mount rotor adapter with T-nuts, radial mount bracket assembly, and mounting hardware.
Wilwood Forged Superlite 4 Radial Sprint inboard rear brake kits are available with solid or slotted curved vane rotors. Choose the kit you prefer.
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Instructions & Calculators
Some parts are not legal for use in California or other states with similar laws / regulations
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