Thursday, April 26, 2018
Billet Superlite 4 Lug Mount Caliper – Part No: 120-7571-RS
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Billet Superlite 4 Lug Mount-ST Product Number: 120-7571-RS     Price: $459.90

Caliper No: 120-7571-RS
Wilwood Billet Superlite 4 Lug Mount-ST Caliper

Wilwood Billet Superlite 4 Lug Mount-ST Caliper

Billet Superlite 4 Lug Mount-ST
The billet SL4/ST caliper incorporates Wilwood's latest technology in a conventional 3.50" centered lug mount design, with weights starting at 4.94 pounds. This caliper series has been structurally designed for high clamping efficiency and low deflection in a body width compatible with all wide 5 and 5 x 5 style hubs. It is a direct replacement for all other Superlite style calipers.   

For the ultimate protection in extreme sustained high heat competition, SL4/ST models are equipped with Wilwood's exclusive Thermlock® pistons. This multi-part piston assembly provides a highly effective thermal barrier that reduces heat transfer from the pads to the fluid, seals, and caliper body by as much as 30%. Seal life and fluid performance is increased proportionately. High temperature square faced seals provide the largest possible sealing surface area with controlled piston retraction on release.    Continue >>

120-7571-RS - Product Summary
Count: Area (in²): Type: Dust Boot:
4 5.18 Thermlock No
Rotor Dimensions
Rotor Width(In): Rotor Diameter(In):
1.25 13.06
Pad Dimensions
Pad Area (in²): Pad Volume (in³):
8.2 4.9
Mount Center(In): Mount Position: Mount Side: Mount Type:
3.5 Rear Mount Left Hand Lug
Duty Rating & Material
Material: Weight(Lbs):
Aluminum 5.8
Colors & Finishes
Color: Finish:
Black Black Anodize
Product Documents
Full Product Product Data Sheet Installation Instructions
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Vehicle Applications
Driving EnvironmentVehicle Sub-TypesApplication Duty
Street Performance DomesticHeavy Duty
Street Performance ImportMedium Duty
Rally Heavy Duty
Road Race Heavy Duty
Late Model Asphalt ASA, All Pro, SW Tour, etc...Heavy Duty
Stock Cars NASCAR, BGN, CTS, ARCA, etc... Heavy Duty
Northeast Modified Dirt or PavementHeavy Duty
Open Wheel Sprint, Midget, etc… Dirt or PavementHeavy Duty
Off Road Heavy Duty

Product Specifications
Rotor Compatibility
Rotor Width(In): 1.25
Maximum Rotor Width(In): 1.38
Minimum Rotor Width(In): 1.19
Maximum Rotor Diameter(In): 13.06
Minimum Rotor Diameter(In): 11.75
Brake Pad Specifications
Brake Pad Type 1: 7420
Brake Pad Type 2: N-A
Brake Pad Type 3: N-A
Total Pad Area (in²): 8.2
Total Pad Volume (in³): 4.9
Pad Dimensions & Part Numbers
Pad Dimensions for the Billet Superlite 4 Lug Mount-ST

Pad Dimensions for the Billet Superlite 4 Lug Mount-ST
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Piston Specifications
Piston 1 Bore(In): 1.88
Piston 2 Bore(In): 1.75
Piston 3 Bore(In):
Total Piston Area (in²): 5.18
Mounting Specifications
Mount Type: Lug
Mount Side: Left Hand
Mount Center(In): 3.5
Mount Hole Size(In): 0.45
Mount Height(In): 2.85
Inlet Thread Size: 1/8-27 NPT
Mount Dimensions & Part Numbers
Dimensions for the Billet Superlite 4 Lug Mount-ST

Dimensions for the Billet Superlite 4 Lug Mount-ST
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Parts & Accessories
O-Ring Kit: 130-2427
Replacement Dust Boot: N-A
Replacement Piston 1: 200-7550
Replacement Piston 2: 200-7551
Replacement Piston 3: N-A
Replacement Piston 4: N-A
Cross-Over O-Ring Kit: N-A
Bridge Bolt Kit: 230-5978
Wear Plate L/H: 300-5923
Wear Plate R/H: 300-5922
Pad Retainer: N-A
Bleed Screw Kit: 220-6069
Self Bleeder Tube: 190-8310
Cross-Over Tube: 190-5975