Forged Narrow Superlite 4R four piston calipers are combined with BP-10 compound pads and 13”-14” rotors in this group of big brake kits for custom high performance street and show machines. This group of specialized kits for cars, trucks, and SUV’s retain full use of the OE parking brake, master cylinder output, and ABS where used. FNSL4R rear kits provide complimentary style and performance with 13” and larger front brake upgrades in conjunction with wheel, tire, and suspension upgrades. Optional caliper finishes and rotor designs enable the builder to match style and performance on all applications.
Wilwood Engineering designs and manufactures high-performance disc brake systems. Since the company’s inception in 1977 by Bill Wood, we have developed a substantial matrix of brake components and engineering techniques that allow us to quickly and reliably create brake systems for almost any application. Our core ability is the rapid development of custom engineered brake systems using a combination of off-the-shelf and custom components. In addition to designing and manufacturing brakes for all types of competitive motor sports, Wilwood also manufactures brake systems and components for agricultural equipment, industrial applications, utility vehicles, snowmobiles, quads, motorcycles and military vehicles.
With headquarters in Camarillo, California, Wilwood employs approximately 250 people. We have on-shelf stock of more than 300 different brake calipers, 200 rotor designs, 100 master cylinder designs and a wide assortment of brackets, fittings, valves and brake lines. Our off-shelf brake calipers range in size from tiny calipers used on go-carts and light duty industrial equipment, to heavy duty original equipment brakes for the U.S. military Humvee.
Wilwood's engineering department uses the latest computer-aided design and manufacturing techniques in conjunction with finite element analysis, dynamic test and cycle test equipment, to find high-performance and reliability solutions for the most difficult braking tasks. Our extensive inventory of proprietary on-the-shelf components allow us to provide cost-effective solutions for unique brake applications.
Wilwood is ISO 9000 compliant and has extensive experience maintaining quality levels of 100ppm or less for original equipment manufacturers.
| Download Name | File Size |
| ds1080.pdf | 467.57KB |
| Make | Model | Submodel | Years | Fitment Notes |
| Jeep | Wrangler | 75th Anniversary | 2016 | KIT,REAR,07-UP JEEP JK,FNSL4R,12.88 ROTOR,SRP,W/LINES; RTR:12.88-IN DIA, SRP DRILLED ROTOR, DRILLED & SLOTTED; CLPR:FORGED NARROW SUPERLITE 4R, 4-PISTON, BLACK POWDER COAT |
| Jeep | Wrangler | Rubicon | 2014 - 2017 | KIT,REAR,07-UP JEEP JK,FNSL4R,12.88 ROTOR,SRP,W/LINES; RTR:12.88-IN DIA, SRP DRILLED ROTOR, DRILLED & SLOTTED; CLPR:FORGED NARROW SUPERLITE 4R, 4-PISTON, BLACK POWDER COAT |
| Jeep | Wrangler | Sahara | 2014 - 2017 | KIT,REAR,07-UP JEEP JK,FNSL4R,12.88 ROTOR,SRP,W/LINES; RTR:12.88-IN DIA, SRP DRILLED ROTOR, DRILLED & SLOTTED; CLPR:FORGED NARROW SUPERLITE 4R, 4-PISTON, BLACK POWDER COAT |
| Jeep | Wrangler | Sport S | 2016 | KIT,REAR,07-UP JEEP JK,FNSL4R,12.88 ROTOR,SRP,W/LINES; RTR:12.88-IN DIA, SRP DRILLED ROTOR, DRILLED & SLOTTED; CLPR:FORGED NARROW SUPERLITE 4R, 4-PISTON, BLACK POWDER COAT |
| Jeep | Wrangler | Sport | 2014 - 2017 | KIT,REAR,07-UP JEEP JK,FNSL4R,12.88 ROTOR,SRP,W/LINES; RTR:12.88-IN DIA, SRP DRILLED ROTOR, DRILLED & SLOTTED; CLPR:FORGED NARROW SUPERLITE 4R, 4-PISTON, BLACK POWDER COAT |
| Jeep | Wrangler | Unlimited 75th Anniversary | 2016 | KIT,REAR,07-UP JEEP JK,FNSL4R,12.88 ROTOR,SRP,W/LINES; RTR:12.88-IN DIA, SRP DRILLED ROTOR, DRILLED & SLOTTED; CLPR:FORGED NARROW SUPERLITE 4R, 4-PISTON, BLACK POWDER COAT |
| Jeep | Wrangler | Unlimited Rubicon | 2014 - 2017 | KIT,REAR,07-UP JEEP JK,FNSL4R,12.88 ROTOR,SRP,W/LINES; RTR:12.88-IN DIA, SRP DRILLED ROTOR, DRILLED & SLOTTED; CLPR:FORGED NARROW SUPERLITE 4R, 4-PISTON, BLACK POWDER COAT |
| Jeep | Wrangler | Unlimited Sahara | 2014 - 2017 | KIT,REAR,07-UP JEEP JK,FNSL4R,12.88 ROTOR,SRP,W/LINES; RTR:12.88-IN DIA, SRP DRILLED ROTOR, DRILLED & SLOTTED; CLPR:FORGED NARROW SUPERLITE 4R, 4-PISTON, BLACK POWDER COAT |
| Jeep | Wrangler | Unlimited Sport S | 2016 | KIT,REAR,07-UP JEEP JK,FNSL4R,12.88 ROTOR,SRP,W/LINES; RTR:12.88-IN DIA, SRP DRILLED ROTOR, DRILLED & SLOTTED; CLPR:FORGED NARROW SUPERLITE 4R, 4-PISTON, BLACK POWDER COAT |
| Jeep | Wrangler | Unlimited Sport | 2014 - 2017 | KIT,REAR,07-UP JEEP JK,FNSL4R,12.88 ROTOR,SRP,W/LINES; RTR:12.88-IN DIA, SRP DRILLED ROTOR, DRILLED & SLOTTED; CLPR:FORGED NARROW SUPERLITE 4R, 4-PISTON, BLACK POWDER COAT |
| Jeep | Wrangler | Unlimited Willys Wheeler | 2014 | KIT,REAR,07-UP JEEP JK,FNSL4R,12.88 ROTOR,SRP,W/LINES; RTR:12.88-IN DIA, SRP DRILLED ROTOR, DRILLED & SLOTTED; CLPR:FORGED NARROW SUPERLITE 4R, 4-PISTON, BLACK POWDER COAT |
| Jeep | Wrangler | Willys Wheeler | 2014 | KIT,REAR,07-UP JEEP JK,FNSL4R,12.88 ROTOR,SRP,W/LINES; RTR:12.88-IN DIA, SRP DRILLED ROTOR, DRILLED & SLOTTED; CLPR:FORGED NARROW SUPERLITE 4R, 4-PISTON, BLACK POWDER COAT |
| Jeep | Wrangler | 2010 | KIT,REAR,07-UP JEEP JK,FNSL4R,12.88 ROTOR,SRP,W/LINES; RTR:12.88-IN DIA, SRP DRILLED ROTOR, DRILLED & SLOTTED; CLPR:FORGED NARROW SUPERLITE 4R, 4-PISTON, BLACK POWDER COAT Left Hand Drive Models Right Hand Drive |
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| Jeep | Wrangler | 2007 - 2013 | KIT,REAR,07-UP JEEP JK,FNSL4R,12.88 ROTOR,SRP,W/LINES; RTR:12.88-IN DIA, SRP DRILLED ROTOR, DRILLED & SLOTTED; CLPR:FORGED NARROW SUPERLITE 4R, 4-PISTON, BLACK POWDER COAT Right Hand Drive Left Hand Drive Models |
| Details | |
| Part Type | Disc Brake Caliper / Rotor / Pad Kit |
| Kit Summary | |
| Axle Offset | 0.00 |
| Caliper Type | 4 - Black Powder Coat |
| Min Wheel Diameter Req'd* | 17 |
| Mount Type | Radial |
| Rear End Axle | OEM |
| Rotor Diameter | 12.88 |
| Kit Components & Specs / Rotors | |
| Bedded | No |
| Design Type | SRP-BLK |
| Dynamically Balanced | No |
| Left Hand - Part No | 160-9962-BK |
| Material | Iron |
| Outside Diameter (in) | 12.88 |
| Right Hand - Part No | 160-9961-BK |
| Style | SRP Drilled & Slotted |
| Surface Finish | Black Electro Coat |
| Type | SRP Drilled Rotor |
| Vane Count | 48 CV |
| Width (in) | 0.81 |
| Parts & Accessories / Caliper Parts | |
| Bleed Screw Kit | 220-0627 |
| Bridge Bolt Kit | 230-12489 |
| CrossOver O-Ring Kit | 130-10540 |
| O-ring Kit | 130-2658 |
| Replacement Piston 1 | 200-7518 |
| Replacement Piston 2 | 200-7518 |
| Wear Plate - Left Hand | 300-6596 |
| Wear Plate - Right Hand | 300-6595 |
| Kit Components & Specs / Rotor Hats | |
| Bolt Circle 1 | 5 x 5.00 |
| Finish Color | Black E-Coat |
| Hat - Part No | 170-13958 |
| Hat Offset Dimension (in) | 2.200 |
| Material | Iron |
| Stud Diameter - BC 1 | 0.000 |
| Stud Diameter - BC 2 | 0.000 |
| Stud Diameter - BC 3 | 0.000 |
| Type | Parking Brake Hat - Standard |
| Parts & Accessories / Hat | |
| Bolt Kit | 230-8217 |
| Kit Components & Specs / Calipers | |
| Brake Pad Area (In²) | 8.2 |
| Brake Pad Plate | 7416 |
| Brake Pad Volume (In³) | 3.8 |
| Finish Color | Black Powder Coat |
| Left Hand - Part No | 120-14055-BK |
| Mount Type | Radial |
| Pad Compound | BP-20 |
| Piston 1 Bore (in) | 1.38 |
| Piston 2 Bore (in) | 1.38 |
| Piston Area (In²) | 3.00 |
| Piston Count | 4 |
| Piston Type | Stainless |
| Right Hand - Part No | 120-14055-BK |
| Type | Forged Narrow Superlite 4R |
| Parts & Accessories / Brake Lines | |
| Front Line Kit | 220-13968 |
