Wilwood 249-9774/13680 Radial Mount Caliper Bracket Kit for FNSL4R Calipers

The Wilwood 249-9774/13680 is a radial mount caliper bracket kit engineered to precisely position Wilwood's FNSL4R (Forged Narrow Superlite 4 Radial Mount) series disc brake calipers on axle mounting applications. Designed as a direct component of Wilwood's high-performance brake systems, this bracket kit ensures accurate caliper alignment and a secure, repeatable mount for both street and competition use.

Key Features:

• Radial mount design for FNSL4R series calipers — provides two planes of adjustment for precise disc alignment
• 5.980 in. radial mount centers for accurate positioning over the rotor
• Optimized for 13.000 in. rotors — matched to Wilwood's disc/drum brake kit applications
• High-strength aluminum alloy construction with a durable black finish to resist rust and corrosion
• Includes caliper mounting hardware — studs and all necessary fasteners for installation
• Sold as a kit (pair) — includes both left and right brackets
• Designed to integrate with Wilwood axle mounting brake kits (cross-reference kit p/n 140-13680)

Wilwood bracket kits are precision-manufactured replacement and upgrade components built to the same tolerances as their complete brake systems. The FNSL4R radial mount design simplifies installation and delivers consistent caliper-to-rotor alignment critical for proper braking performance. This bracket kit is the recommended mounting solution when building or servicing a Wilwood disc brake system using FNSL4R calipers.