Wilwood 140-9838 Rear Truck Big Brake Kit Rotor - W4A 14.25

The Wilwood W4A Rear Truck Kit (part number 140-9838) is a complete disc brake upgrade system designed to replace factory rear disc brakes on late model trucks and SUVs. Featuring massive 14.25-inch rotors, this high-performance brake kit delivers significantly enhanced stopping power while maintaining compatibility with OEM parking brake assemblies and ABS systems.

Key Features:

• AERO4 forged billet calipers provide exceptional clamping force and heat dissipation
• 14.25-inch oversized rotors dramatically increase braking surface area
• BP-10 compound brake pads offer superior friction characteristics and fade resistance
• Engineered to match OE master cylinder output and vehicle-specific brake bias requirements
• Retains factory parking brake functionality for complete system integration
• Designed as the ideal complement to front big brake upgrades
• Bolt-on installation using OEM mounting points

This rear axle brake kit is specifically engineered for trucks and SUVs with increased brake demands from heavy loads, towing, larger wheel and tire packages, or performance suspension upgrades. The AERO4 caliper design provides professional-grade braking capacity with enhanced durability and distinctive high-tech styling. Perfect for custom builds, work trucks, tow vehicles, and any application where high gross vehicle weight requires superior braking performance beyond factory specifications.