Wilwood 120-8062-R BNSL4R 4-Piston Radial Mount Disc Brake Caliper Right

The Wilwood 120-8062-R Billet Narrow Superlite 4R (BNSL4R) is a high-performance, 4-piston radial mount disc brake caliper engineered for demanding competition and performance driving environments. Part of Wilwood's legendary Superlite caliper series, the BNSL4R extends that proven lineage with radial mount versatility and advanced structural technology. This is the right-hand mount version, finished in a durable black powder coat.

Key Features:

• Radial mount design simplifies installation and provides two planes of adjustment for precise alignment over the rotor
• 4-piston, equal-bore configuration with dual 1.25" piston bores delivers balanced clamping force and even pad wear under sustained high-heat conditions
• Compatible with 1.10" rotor width for broad application fitment
• Forged billet aluminum body engineered using computer-generated solid modeling and stress analysis for maximum strength and minimal deflection under load
• Closed-end bridge design with radial transitions to piston housings eliminates machined steps and sharp shoulders, measurably increasing body rigidity
• Center bridge bolts replace traditional cotter pins for enhanced structural support and quick brake pad access
• SRS stainless steel bridge plates prevent bridge wear from pad gouging, eliminate pad rattle, and dampen vibration harmonics that contribute to brake squeal
• One-piece stainless steel pistons resist corrosion and retard heat transfer from pads to caliper seals and fluid
• High-temperature, square-faced O-ring bore seals provide maximum sealing area, controlled piston retraction, and long service life in extreme heat
• Internal fluid crossovers with two-piece bleed screws on each end protect against track debris damage and ensure long-term serviceability
• Compatible with Wilwood's full range of PolyMatrix brake pad compounds to match brake response and heat range to any application
• Direct replacement for all Wilwood Superlite and compatible competitive calipers with 3.50" centered mounting tabs
• Optional upgrade to Wilwood Thermlock pistons available for maximum thermal barrier performance

The BNSL4R is purpose-built for short track, late model, modified, open wheel, road race, rally, off-road, and high-performance street driving. Its narrow body profile is specifically designed for tight-clearance applications, and the radial mount configuration makes it exceptionally adaptable across a wide range of custom brake system builds. The right-hand caliper (120-8062-R) is sold individually; the left-hand counterpart is part number 120-8062-L.