Wednesday, April 25, 2018
Forged Superlite 4R Radial Mount Caliper – Part No: 120-13227
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Forged Superlite 4 Radial Mount Product Number: 120-13227     Price: $248.34
Available Caliper #120-13227 Configurations

Black Caliper

Right Hand

Black Caliper

Left Hand

Caliper No: 120-13227
Wilwood Forged Superlite 4 Radial Mount Caliper

Wilwood Forged Superlite 4 Radial Mount Caliper
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Forged Superlite 4 Radial Mount
The Superlite 4R caliper series is the benchmark in asphalt short track, late model, modified and open wheel competition. It also enjoys prominence in a variety of road-race, rally and sport driving applications. The new FSL4R model series is the latest innovation to this Superlite family of calipers. It has been redesigned with internal fluid ports that eliminate the external fluid cross-over tubes. The transfer tube has been replaced with two additional bleed screw assemblies which allow symmetrical piston bore models to be mounted either right or left in a leading or trailing position. Differential bore models still require left hand and right hand orientation, but no leading or trailing configuration is necessary.   

The most noteworthy feature of all the FSL4R caliper models is the exceptional strength and reduced weight of the forging. With assembled weights just at 4.4 pounds, the caliper body design in itself is a product of computer generated solid modeling and stress analysis technology. Each caliper features closed end bridges with a radial transition down to the main body and piston bore housings. The elimination of machined steps and sharp shoulders in this critical area provides a measurable increase in overall body strength and resistance to deflection under load. Every FSL4R body is stress-flow forged from a premium grade aluminum alloy billet.   Continue >>

120-13227 - Product Summary
Count: Area (in²): Type: Dust Boot:
4 5.18 Stainless No
Rotor Dimensions
Rotor Width(In): Rotor Diameter(In):
1.25 14
Pad Dimensions
Pad Area (in²): Pad Volume (in³):
8.2 4.9
Mount Center(In): Mount Position: Mount Side: Mount Type:
5.98 Right Hand Radial
Duty Rating & Material
Material: Weight(Lbs):
Colors & Finishes
Color: Finish:
Black Black Anodize
Product Documents
Full Product Product Data Sheet Installation Instructions
Click To View Click To Download

Vehicle Applications

Product Specifications
Rotor Compatibility
Rotor Width(In): 1.25
Maximum Rotor Width(In): 1.35
Minimum Rotor Width(In): 1.15
Maximum Rotor Diameter(In): 14
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 Forged Superlite 4 Radial Mount

Pad Dimensions for the Forged Superlite 4 Radial Mount
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Mount Dimensions for the Forged Superlite 4 Radial Mount

Mount Dimensions for the Forged Superlite 4 Radial Mount
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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: Radial
Mount Side: Right Hand
Mount Center(In): 5.98
Mount Hole Size(In): 0.39
Mount Height(In): 1.63
Inlet Thread Size: 1/8-27 NPT
Mount Dimensions & Part Numbers
Dimensions for the Forged Superlite 4 Radial Mount

Dimensions for the Forged Superlite 4 Radial Mount
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Parts & Accessories
O-Ring Kit: 130-2427
Replacement Dust Boot: N-A
Replacement Piston 1: 200-7521
Replacement Piston 2: 200-7531
Replacement Piston 3: N-A
Replacement Piston 4: N-A
Cross-Over O-Ring Kit: 130-10540
Bridge Bolt Kit: 230-5978
Wear Plate L/H: 300-5923
Wear Plate R/H: 300-5922
Pad Retainer: N-A
Bleed Screw Kit: 220-0627
Self Bleeder Tube: N-A
Cross-Over Tube: N-A