Alcon ALABKR5059D16 Off-Road C-Hook Slotted 1-Piece Heavy Duty Rear Brake Kit 5x5.5"

The Alcon BKR5059D16 is an off-road, heavy-duty rear big brake kit engineered for serious trail and performance driving. Featuring 4-piston ductile iron red calipers and 335x22mm C-Hook slotted 1-piece rotors, this kit delivers dramatically improved stopping power, thermal management, and pedal feel over the factory braking system. Designed for Currie RockJock Dana 60 or 70 rear axles with a 5x5.5" bolt pattern, it is built to withstand the punishment of off-road and high-demand driving environments.

Alcon is a global leader in the design and manufacture of brakes and clutches for motorsport, OEM, and high-performance aftermarket applications. Every component in this kit is engineered and tested to motorsport standards for uncompromising reliability and performance.

Performance Gains Over Stock:

• Up to 30% reduction in disc temperature rise
• Up to 26% reduction in pad work rate, extending pad life
• Up to 25% reduction in pedal effort

Key Features:

• 4-Piston Ductile Iron Caliper Housing — maximum strength, stiffness, and resistance to impact and fatigue
• 335x22mm C-Hook Slotted 1-Piece Rotors — larger rotor diameter increases brake torque and thermal capacity, reducing brake fade
• High-Friction Brake Pads — increased pad area with machined half-moon reliefs to reduce operating temperatures and extend pad life
• Epoxy Acrylic Paint Over Acid Zinc Finish — maximum corrosion protection for off-road conditions
• High-Temperature Seal Material — used in the highest levels of motorsport competition
• Wiper Seal on Every Piston — prevents dirt and debris ingestion for reliable off-road use
• OEM Parking Brake Compatible — retains and utilizes the factory parking brake system
• OEM Master Cylinder Compatible — works with stock brake booster and traction control systems
• Fits many 17" and larger aftermarket off-road wheels

Kit Includes:

• Pair of 4-piston red calipers (CIR5059D10HZLT-RL)
• Pair of 335x22mm slotted rotors (DIA2197X016C24L)
• Pad retainer kit (PSA4450X310)
• All necessary hardware and brake lines

The Alcon BKR5059D16 rear brake kit is the benchmark heavy-duty upgrade for off-road builds demanding consistent, fade-resistant braking performance under extreme conditions.