Wilwood 120-14489-RD FNSL6R Forged Narrow Superlite 6 Piston Brake Caliper Right Rear Red

The Wilwood Forged Narrow Superlite 6R Dust Seal (FNSL6R-DS) represents the latest evolution of Wilwood's venerable Superlite caliper series. This right-hand caliper features an exclusive wiper dust seal that provides environmental protection, making it ideal for applications that demand superior sealing against dust, dirt, and debris. Finished in red anodized aluminum, this caliper delivers big brake performance across a broad range of extreme driving conditions.

Advanced Forged Construction:

Each caliper body is stress-flow forged from premium grade aluminum alloy billets using computer-generated solid modeling and FEA stress analysis. This forging process re-aligns the metal's internal grain structure to flow within the contour of the caliper body, eliminating internal stresses and grain interruptions that occur with standard billet machining. At just 4.9 pounds, this forging method creates the strongest possible aluminum caliper body while maintaining an exceptionally light weight.

Six-Piston Differential Bore Design:

The unique six-piston differential bore configuration provides balanced pad loading for even wear characteristics, even in sustained high-heat environments. Standard calipers feature one-piece stainless steel pistons that offer slow heat transfer properties and excellent corrosion resistance. Calipers can be upgraded with Wilwood's exclusive Thermlock pistons, which create a highly efficient thermal barrier to further reduce heat transfer from pads to the caliper body, seals, and brake fluid.

Key Features:

• Stress-flow forged aluminum body weighs just 4.9 pounds
• Exclusive wiper dust seal for environmental protection
• Six-piston differential bore configuration for balanced pad loading
• One-piece stainless steel pistons resist corrosion and limit heat transfer
• SRS bridge plates eliminate bridge wear from pad gouging and prevent pad rattle
• Two-piece bleed screws on each end with internal fluid crossovers
• High-temperature square-faced bore seals provide controlled piston retraction
• Compatible with full range of Wilwood pad compounds
• Red anodized finish
• Right-hand rear configuration

Enhanced Durability and Performance:

Each FNSL6R caliper is equipped with SRS (Stainless Rigid System) bridge plates that eliminate all bridge wear caused by pad gouging, significantly extending caliper service life. The spring-loaded action of the SRS plates also eliminates pad rattle and dampens harmonic vibrations that contribute to brake squeal. Two-piece bleed screws and internal fluid crossovers protect against damage from track debris and other hazards. High-temperature square-faced bore seals maximize sealing area and provide precise piston retraction on brake release, ensuring consistent pedal feel and reduced drag.