Wilwood Forged Narrow Superlite 4R Front Big Brake Kit for 07-18 Jeep Wrangler JK with 18" Wheels

Wilwood Engineering has recently introduced a new Jeep JK big brake kit for the 2007 to present Wrangler JK Jeep. This entirely new kit features the latest in disc brake technology and includes Wilwood's Forged Billet Superlite 4-piston calipers (BNSL4R) in black powder coat clamping down on oversized 14.00” x 1.25” GT asymmetrical face slot pattern rotors.

The kit (part number 140-12440) comes with aluminum hats, caliper mounting brackets and all necessary hardware for an easy, bolt-on installation. Optional SRP drilled and slotted rotors are also available. Wilwood BP-10 high performance street pads round out the kit. Other brake pad compounds, including those for off-road applications, are also available.

The all new Jeep JK brake upgrade kit is configured for high performance street or off-road environments and is compatible with the original equipment master cylinder and ABS system. Stainless steel braided flexline hose kit, part number 220-11237 is necessary, but not included with the kit and must be ordered separately.

All of Wilwood's performance brake kits are loaded with cutting edge technology built on decades of domination in world motorsports. This kit will not only exceed your braking demands, on and off the highway, but also enhance the appearance of your Jeep JK.

Installation Notes

Installation Difficulty:

Level 3Advanced

A minimum of a 18" wheel must be used with this kit.

Installation Time: 3-5 hours

Installation
Instructions

Parts Included

2 Caliper Mounting Brackets
4 M14-2.00 x 40mm Long, Hex Head Bolts
4 .578 I.D. x 1.062 O.D. x .063 Thick Washers
24 .029 Thick Shims
2 Rotor Registration Adapters
2 GT - 1.25” x 14.00” Dia, 12 x 8.75” Bolt Circle Rotors
2 Big Brake, .850 Offset, 12 x 8.75” Bolt Circle Hats
24 .265 I.D. x .500 O.D. x .063 Thick Washers
24 1/4-20 x 1.00” Long, 12 Point Bolts
2 Forged Narrow Superlite 4R Calipers
4 3/8-24 Self-Locking, 12 Point Nuts
4 .391 I.D. x .625 O.D. x .063 Thick Washers
4 3/8-16 x 3/8-24 x 3.150 long Studs (pre installed in bracket)
4 .573 Long Spacers
16 .035 Thick Shims
1 BP-10 Compound, Axle Set Pad