Wilwood Caliper-BNSL4R 1.75in Pistons 1.25in Disc

The Superlite caliper series has set the standard for many years in short track, late model, modified and open wheel competition. It has also enjoyed prominence in a variety of road-race, off-road, rally and sport driving applications. Starting at 4.40 pounds, the Forged Billet Superlite (FSL) is the newest innovation to this series from Wilwood. New and adaptive technologies have been applied providing substantial improvements in strength, fluid volume displacement, and overall performance.

Note for Pistons, Rings, Rotors, Rods and engine internals

Unless otherwise specified, some brands supply brake rotors, pistons, strut mounts, rods and rings separately. In some cases, titles may indicate plural, or 'set' - eg the term “ring set” often refers to the rings for a single piston only. If you’re unsure about what’s included with this product, please contact our team for clarification.

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Reference Information

Brake Caliper, Forged Narrow Superlite 4 Radial Mount, Aluminum, Black Powdercoated, 4-piston, Driver Side, Each

Super-light and super-strong, Willwood narrow Superlite 4R calipers should be your high performance choice. Featuring differential piston bores, these calipers reduce pad taper wear in sustained high-temperature applications, and heavy-wall stainless steel pistons offer low heat transfer and high resistance to corrosion. Computer-designed Superlite 4R calipers are manufactured from billet aluminum and given a black powdercoated finish for maximum strength and durability to provide you with superior performance. These calipers are equipped with replaceable stainless steel bridge plates, high-temperature square-faced piston seals, dampened and recess mounted fluid transfer tubes, center bridge bolts, and 2-piece bleed screw assemblies. From American street rods to import street machines, road rally or road race, narrow Superlite 4R calipers from Wilwood are a great choice for your world of motion, whatever it may be.