Product Summary

Front Position, 12.19 Inch Rotor Diameter, Black, Black

  • The unsurpassed braking capacity of the Forged Narrow Superlite 4R four-piston caliper serves as the base
  • Big rotor kit for these popular 84-89 Jeep YJ model vehicles (including Cherokee, Comanche, Wrangler and Wagoneer)
  • Kits also can be fitted to select 1990 to 2006 YJ & TJ vehicles if retrofitted to the earlier 84-89 YJ spindle and hub assembly
  • FNSL4 kits are engineered application specific for simplified installation and full compatibility with OE master cylinder output and ABS functions where used
  • Big brake kits provide increased brake capacity and complimentary style with wheel, tire, and suspension upgrades
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Key Specs

MFG. Part #140-12576
PositionFront
Wheel Bolt Pattern (in.)5x4.5 in.
Wheel Bolt Pattern (mm)5x114.3 mm
Rotor Diameter12.19 Inch
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Wilwood 140-12576 Details

  • The unsurpassed braking capacity of the Forged Narrow Superlite 4R four-piston caliper serves as the base of this 12
  • 19” big rotor kit for these popular 84-89 Jeep YJ model vehicles (including Cherokee, Comanche, Wrangler and Wagoneer)
  • Kits also can be fitted to select 1990 to 2006 YJ & TJ vehicles if retrofitted to the earlier 84-89 YJ spindle and hub assembly
  • FNSL4 kits are engineered application specific for simplified installation and full compatibility with OE master cylinder output and ABS functions where used
  • Big brake kits provide increased brake capacity and complimentary style with wheel, tire, and suspension upgrades
  • Optional caliper finishes and rotor designs simplify personalizing the style and braking requirements of any application

Application

1984 Jeep Cherokee All
1984 Jeep Wagoneer All
1985 Jeep Cherokee All
1985 Jeep Wagoneer All
1986 Jeep Cherokee 4 X 4 Only
1986 Jeep Comanche 4 X 4 Only
1986 Jeep Wagoneer 4 X 4 Only
1987 Jeep Cherokee 4 X 4 Only
1987 Jeep Comanche 4 X 4 Only
1987 Jeep Wagoneer 4 X 4 Only
1987 Jeep Wrangler (YJ) All
1988 Jeep Cherokee 4 X 4 Only
1988 Jeep Comanche 4 X 4 Only
1988 Jeep Wagoneer 4 X 4 Only
1988 Jeep Wrangler (YJ) All
1989 Jeep Cherokee 4 X 4 Only
1989 Jeep Comanche 4 X 4 Only
1989 Jeep Wagoneer 4 X 4 Only
1989 Jeep Wrangler (YJ) All
1990 Jeep Cherokee Req. conversion to 87-89 YJ front spindles
1990 Jeep Comanche Req. conversion to 87-89 YJ front spindles
1990 Jeep Wagoneer Req. conversion to 87-89 YJ front spindles
1990 Jeep Wrangler (YJ) Req. conversion to 87-89 YJ front spindles
1991 Jeep Cherokee Req. conversion to 87-89 YJ front spindles
1991 Jeep Comanche Req. conversion to 87-89 YJ front spindles
1991 Jeep Wrangler (YJ) Req. conversion to 87-89 YJ front spindles
1992 Jeep Cherokee Req. conversion to 87-89 YJ front spindles
1992 Jeep Comanche Req. conversion to 87-89 YJ front spindles
1992 Jeep Wrangler (YJ) Req. conversion to 87-89 YJ front spindles
1993 Jeep Cherokee Req. conversion to 87-89 YJ front spindles
1993 Jeep Grand Cherokee Req. conversion to 87-89 YJ front spindles
1993 Jeep Grand Wagoneer Req. conversion to 87-89 YJ front spindles
1993 Jeep Wrangler (YJ) Req. conversion to 87-89 YJ front spindles
1994 Jeep Cherokee Req. conversion to 87-89 YJ front spindles
1994 Jeep Grand Cherokee Req. conversion to 87-89 YJ front spindles
1994 Jeep Wrangler (YJ) Req. conversion to 87-89 YJ front spindles
1995 Jeep Cherokee Req. conversion to 87-89 YJ front spindles
1995 Jeep Grand Cherokee Req. conversion to 87-89 YJ front spindles
1995 Jeep Wrangler (YJ) Req. conversion to 87-89 YJ front spindles
1996 Jeep Cherokee Req. conversion to 87-89 YJ front spindles
1996 Jeep Grand Cherokee Req. conversion to 87-89 YJ front spindles
1997 Jeep Cherokee Req. conversion to 87-89 YJ front spindles
1997 Jeep Grand Cherokee Req. conversion to 87-89 YJ front spindles
1997 Jeep TJ Series Req. conversion to 87-89 YJ front spindles
1997 Jeep Wrangler Req. conversion to 87-89 YJ front spindles
1998 Jeep Cherokee Req. conversion to 87-89 YJ front spindles
1998 Jeep Grand Cherokee Req. conversion to 87-89 YJ front spindles
1998 Jeep TJ Series Req. conversion to 87-89 YJ front spindles
1998 Jeep Wrangler Req. conversion to 87-89 YJ front spindles
1999 Jeep Cherokee Req. conversion to 87-89 YJ front spindles
1999 Jeep TJ Series Req. conversion to 87-89 YJ front spindles
1999 Jeep Wrangler Req. conversion to 87-89 YJ front spindles
2000 Jeep Cherokee Req. conversion to 87-89 YJ front spindles
2000 Jeep TJ Series Req. conversion to 87-89 YJ front spindles
2000 Jeep Wrangler Req. conversion to 87-89 YJ front spindles
2001 Jeep Cherokee Req. conversion to 87-89 YJ front spindles
2001 Jeep TJ Series Req. conversion to 87-89 YJ front spindles
2001 Jeep Wrangler Req. conversion to 87-89 YJ front spindles
2002 Jeep TJ Series Req. conversion to 87-89 YJ front spindles
2002 Jeep Wrangler Req. conversion to 87-89 YJ front spindles
2003 Jeep TJ Series Req. conversion to 87-89 YJ front spindles
2003 Jeep Wrangler Req. conversion to 87-89 YJ front spindles
2004 Jeep TJ Series Req. conversion to 87-89 YJ front spindles
2004 Jeep Wrangler Req. conversion to 87-89 YJ front spindles
2005 Jeep TJ Series Req. conversion to 87-89 YJ front spindles
2005 Jeep Wrangler Req. conversion to 87-89 YJ front spindles
2006 Jeep TJ Series Req. conversion to 87-89 YJ front spindles
2006 Jeep Wrangler Req. conversion to 87-89 YJ front spindles

Specs

Our rotors are machined and fully e-coated, just like the rotor hats. This is a protectant coating the prohibits surface rust from forming on the exposed surfaces. Once the parts are installed and being bedded in, the brake pad friction and caliper pressure will remove the coating at the spot the brake pads touch. This will expose the silver iron material underneath.

Wilwood 140-12576 Specifications

KEY SPECS
MFG. Part #140-12576
BrandWilwood
PositionFront
Wheel Bolt Pattern (in.)5x4.5 in.
Wheel Bolt Pattern (mm)5x114.3 mm
Rotor Diameter12.19 Inch
Rotor TypeVented
Caliper PistonsFour
Caliper FinishPowder Coated
Parking Brake ProvisionNo
Minimum Recommended Wheel Diameter16 Inch
Rotor ShapeRound
Hardware IncludedYes
Rotor StylePlain Face
Spindle TypeFactory Disc Spindle
Front Rotor IncludedYes
Front Rotor Diameter12.19 in./309.63mm
Front Caliper IncludedYes
Rear Caliper IncludedNo
Front Spindles IncludedNo
Master Cylinder IncludedNo
Brake Booster IncludedNo
Brake Hoses IncludedNo
Rear Rotor IncludedNo
Bolt Pattern5 on 4.5"
ColorBlack
Front Caliper Piston QuantityFour
GENERAL
Sold in QuantityKit
GTIN Code889545016994
NotesDesigned for use with factory disc spindle.
Rotor Thickness1.1"
Stud Diameter0.63"
Mount TypeRadial
Total Piston Area4.80 sq. in.
Piston TypeStainless
Pad Area8.20 sq. in.
Pad Volume3.8 cu. in.
Brake Pad CompoundBP-10
Caliper TypeRadial
Rotor FinishNatural
Rotor Material TypeIron
Vane Count32 Straight Vane
BeddedNo
BalancedNo
Hat TypeDrag Hat- Standard
Hat FinishBlack E-Coat
Hat Material TypeAluminum
Hat Offset Dimension1.68"
Front Rotor Thickness1.10"
Front Caliper MaterialForged Billet Aluminum
Front Caliper ColorBlack
Brake Lines IncludedNo
Front Rotor StyleSolid
Caliper ColorBlack
Caliper Material TypeForged Aluminum
Front Rotor ConstructionVented
Hat Bolt Circle 15 x 4.50

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