Wilwood Narrow Superlite 4R Front Kit 12.19in 87-89 Jeep YJ

SKU: WIL140-12576

Disc Brake Kits

WIL Superlite Brake Kit...

Wilwood

Wilwood Narrow Superlite 4R Front Kit 12.19in 87-89 Jeep YJ

SKU: WIL140-12576

Disc Brake Kits

WIL Superlite Brake Kit...

Available from MFR. This item is available from the manufacturer's distribution centre. The dispatch timeframe shown is an estimate based on historical order processing and release times for this part. This item is not held in our own warehouse, and actual dispatch timing may vary depending on manufacturer workload and logistics at the time of ordering.

We accept

Description

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. SL4 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.

Part Type

Disc Brake Kits

Data: v4.2 - Upd: 2026-10-13 21:14:32

Specifications

Product Attributes - UPC: 889545016994
Product Attributes - Brand: Wilwood Disc Brakes
Product Attributes - Notes: Designed for use with factory disc spindle.
Product Attributes - Position: Front
Product Attributes - Quantity: Sold as a kit.
Product Attributes - Part Type: Disc Brake Kits
Product Attributes - Product Line: Wilwood Forged Narrow Superlite 4R Big Brake Front Brake Kits
Product Attributes - Front Rotor Style: Solid surface
Product Attributes - Front Caliper Color: Black
Product Attributes - Rear Rotor Included: No
Product Attributes - Brake Hoses Included: No
Product Attributes - Front Rotor Diameter: 12.19 in./309.63mm
Product Attributes - Front Rotor Included: Yes
Product Attributes - Rear Caliper Included: No
Product Attributes - Brake Booster Included: No
Product Attributes - Front Caliper Included: Yes
Product Attributes - Front Caliper Material: Forged billet aluminum
Product Attributes - Front Spindles Included: No
Product Attributes - Parking Brake Provision: No
Product Attributes - Front Rotor Construction: Vented
Product Attributes - Master Cylinder Included: No
Product Attributes - Manufacturer's Part Number: 140-12576
Product Attributes - Front Rotor Thickness (in.): 1.10 in.
Product Attributes - Brake Rotor Bolt Pattern (mm): 5 x 114.30mm
Product Attributes - Front Caliper Piston Quantity: Four
Product Attributes - Brake Rotor Bolt Pattern (in.): 5 x 4.50 in.
Product Attributes - Minimum Recommended Wheel Diameter (in.): 16 in.

Reference Information

Brand Name/s	Wilwood
StreetFX SKU	wil140-12576
SFX Item ID	4405203
Supplier Item Code	4405203
Manufacturer SKU	140-12576
Manufacturer UPC	889545016994
Alternative References	12.19in

Compatibility

Application Data

Make	JEEP
Model	CHEROKEE
Submodel	BASE
Beginning Year	1984
Ending Year	1985
Engine Type	L4
Engine Size	2.5L/150
Engine Family	AMC 4-cylinder
Liter	2.5
CID	150
Drivetrain	4WD
Application Notes	Front Brake Type: Disc, Rear BrakeType: Drum. KIT,FRONT JEEP WRANGLER YJ 87-89,12.19x 1.10 ROTOR,VENTED; RTR:12.19-IN DIA, ULTRALITE HP 32, UNDRILLED; CLPR:FORGED NARROW SUPERLITE 4R, 4-PISTON, BLACK POWDER COAT Kit will fit 1990 thru 2006 YJ & TJ Series vehicles with conversion to 87-89 YJ Series sp
Engine VIN Code	U

Make	JEEP
Model	CHEROKEE
Submodel	BASE
Beginning Year	1984
Ending Year	1986
Engine Type	V6
Engine Size	2.8L/173
Engine Family	GM V6
Liter	2.8
CID	173
Drivetrain	4WD
Application Notes	Front Brake Type: Disc, Rear BrakeType: Drum. KIT,FRONT JEEP WRANGLER YJ 87-89,12.19x 1.10 ROTOR,VENTED; RTR:12.19-IN DIA, ULTRALITE HP 32, UNDRILLED; CLPR:FORGED NARROW SUPERLITE 4R, 4-PISTON, BLACK POWDER COAT Kit will fit 1990 thru 2006 YJ & TJ Series vehicles with conversion to 87-89 YJ Series sp
Engine VIN Code	W

Make	JEEP
Model	CHEROKEE
Submodel	BASE
Beginning Year	1985
Ending Year	1985
Engine Type	L4
Engine Size	2.1L/126
Engine Family	Renault diesel 4-cylinder
Liter	2.1
CID	126
Drivetrain	RWD
Application Notes	Front Brake Type: Disc, Rear BrakeType: Drum. KIT,FRONT JEEP WRANGLER YJ 87-89,12.19x 1.10 ROTOR,VENTED; RTR:12.19-IN DIA, ULTRALITE HP 32, UNDRILLED; CLPR:FORGED NARROW SUPERLITE 4R, 4-PISTON, BLACK POWDER COAT Kit will fit 1990 thru 2006 YJ & TJ Series vehicles with conversion to 87-89 YJ Series sp
Engine VIN Code	B

Make	JEEP
Model	CHEROKEE
Submodel	BASE
Beginning Year	1985
Ending Year	1985
Engine Type	L4
Engine Size	2.5L/150
Engine Family	AMC 4-cylinder
Liter	2.5
CID	150
Drivetrain	RWD
Application Notes	Front Brake Type: Disc, Rear BrakeType: Drum. KIT,FRONT JEEP WRANGLER YJ 87-89,12.19x 1.10 ROTOR,VENTED; RTR:12.19-IN DIA, ULTRALITE HP 32, UNDRILLED; CLPR:FORGED NARROW SUPERLITE 4R, 4-PISTON, BLACK POWDER COAT Kit will fit 1990 thru 2006 YJ & TJ Series vehicles with conversion to 87-89 YJ Series sp
Engine VIN Code	U

Make	JEEP
Model	CHEROKEE
Submodel	BASE
Beginning Year	1985
Ending Year	1985
Engine Type	V6
Engine Size	2.8L/173
Engine Family	GM V6
Liter	2.8
CID	173
Drivetrain	RWD
Application Notes	Front Brake Type: Disc, Rear BrakeType: Drum. KIT,FRONT JEEP WRANGLER YJ 87-89,12.19x 1.10 ROTOR,VENTED; RTR:12.19-IN DIA, ULTRALITE HP 32, UNDRILLED; CLPR:FORGED NARROW SUPERLITE 4R, 4-PISTON, BLACK POWDER COAT Kit will fit 1990 thru 2006 YJ & TJ Series vehicles with conversion to 87-89 YJ Series sp
Engine VIN Code	W

Make	JEEP
Model	CHEROKEE
Submodel	BASE
Beginning Year	1985
Ending Year	1987
Engine Type	L4
Engine Size	2.1L/126
Engine Family	Renault diesel 4-cylinder
Liter	2.1
CID	126
Drivetrain	4WD
Application Notes	Front Brake Type: Disc, Rear BrakeType: Drum. KIT,FRONT JEEP WRANGLER YJ 87-89,12.19x 1.10 ROTOR,VENTED; RTR:12.19-IN DIA, ULTRALITE HP 32, UNDRILLED; CLPR:FORGED NARROW SUPERLITE 4R, 4-PISTON, BLACK POWDER COAT Kit will fit 1990 thru 2006 YJ & TJ Series vehicles with conversion to 87-89 YJ Series sp
Engine VIN Code	B

Make	JEEP
Model	CHEROKEE
Submodel	BASE
Beginning Year	1986
Ending Year	1988
Engine Type	L4
Engine Size	2.5L/150
Engine Family	AMC 4-cylinder
Liter	2.5
CID	150
Drivetrain	4WD
Application Notes	Front Brake Type: Disc, Rear BrakeType: Drum. KIT,FRONT JEEP WRANGLER YJ 87-89,12.19x 1.10 ROTOR,VENTED; RTR:12.19-IN DIA, ULTRALITE HP 32, UNDRILLED; CLPR:FORGED NARROW SUPERLITE 4R, 4-PISTON, BLACK POWDER COAT Kit will fit 1990 thru 2006 YJ & TJ Series vehicles with conversion to 87-89 YJ Series sp
Engine VIN Code	H

Make	JEEP
Model	CHEROKEE
Submodel	BASE
Beginning Year	1987
Ending Year	1988
Engine Type	L6
Engine Size	4.0L/242
Engine Family	AMC inline 6-cylinder
Liter	4.0
CID	242
Drivetrain	4WD
Application Notes	Front Brake Type: Disc, Rear BrakeType: Drum. KIT,FRONT JEEP WRANGLER YJ 87-89,12.19x 1.10 ROTOR,VENTED; RTR:12.19-IN DIA, ULTRALITE HP 32, UNDRILLED; CLPR:FORGED NARROW SUPERLITE 4R, 4-PISTON, BLACK POWDER COAT Kit will fit 1990 thru 2006 YJ & TJ Series vehicles with conversion to 87-89 YJ Series sp
Engine VIN Code	M

Make	JEEP
Model	CHEROKEE
Submodel	BASE
Beginning Year	1989
Ending Year	1990
Engine Type	L4
Engine Size	2.5L/150
Engine Family	AMC 4-cylinder
Liter	2.5
CID	150
Drivetrain	4WD
Application Notes	Front Brake Type: Disc, Rear BrakeType: Drum. KIT,FRONT JEEP WRANGLER YJ 87-89,12.19x 1.10 ROTOR,VENTED; RTR:12.19-IN DIA, ULTRALITE HP 32, UNDRILLED; CLPR:FORGED NARROW SUPERLITE 4R, 4-PISTON, BLACK POWDER COAT Kit will fit 1990 thru 2006 YJ & TJ Series vehicles with conversion to 87-89 YJ Series sp
Engine VIN Code	E

Make	JEEP
Model	CHEROKEE
Submodel	BASE
Beginning Year	1989
Ending Year	1990
Engine Type	L6
Engine Size	4.0L/242
Engine Family	AMC inline 6-cylinder
Liter	4.0
CID	242
Drivetrain	4WD
Application Notes	Front Brake Type: Disc, Rear BrakeType: Drum. KIT,FRONT JEEP WRANGLER YJ 87-89,12.19x 1.10 ROTOR,VENTED; RTR:12.19-IN DIA, ULTRALITE HP 32, UNDRILLED; CLPR:FORGED NARROW SUPERLITE 4R, 4-PISTON, BLACK POWDER COAT Kit will fit 1990 thru 2006 YJ & TJ Series vehicles with conversion to 87-89 YJ Series sp
Engine VIN Code	L

Make	JEEP
Model	CHEROKEE
Submodel	BASE
Beginning Year	1990
Ending Year	1990
Engine Type	L4
Engine Size	2.5L/150
Engine Family	AMC 4-cylinder
Liter	2.5
CID	150
Drivetrain	RWD
Application Notes	Front Brake Type: Disc, Rear BrakeType: Drum. KIT,FRONT JEEP WRANGLER YJ 87-89,12.19x 1.10 ROTOR,VENTED; RTR:12.19-IN DIA, ULTRALITE HP 32, UNDRILLED; CLPR:FORGED NARROW SUPERLITE 4R, 4-PISTON, BLACK POWDER COAT Kit will fit 1990 thru 2006 YJ & TJ Series vehicles with conversion to 87-89 YJ Series sp
Engine VIN Code	E

Make	JEEP
Model	CHEROKEE
Submodel	BASE
Beginning Year	1990
Ending Year	1990
Engine Type	L6
Engine Size	4.0L/242
Engine Family	AMC inline 6-cylinder
Liter	4.0
CID	242
Drivetrain	RWD
Application Notes	Front Brake Type: Disc, Rear BrakeType: Drum. KIT,FRONT JEEP WRANGLER YJ 87-89,12.19x 1.10 ROTOR,VENTED; RTR:12.19-IN DIA, ULTRALITE HP 32, UNDRILLED; CLPR:FORGED NARROW SUPERLITE 4R, 4-PISTON, BLACK POWDER COAT Kit will fit 1990 thru 2006 YJ & TJ Series vehicles with conversion to 87-89 YJ Series sp
Engine VIN Code	L

Make	JEEP
Model	CHEROKEE
Submodel	BASE
Beginning Year	1991
Ending Year	1993
Engine Type	L4
Engine Size	2.5L/150
Engine Family	AMC 4-cylinder
Liter	2.5
CID	150
Drivetrain	4WD
Application Notes	Front Brake Type: Disc, Rear BrakeType: Drum. KIT,FRONT JEEP WRANGLER YJ 87-89,12.19x 1.10 ROTOR,VENTED; RTR:12.19-IN DIA, ULTRALITE HP 32, UNDRILLED; CLPR:FORGED NARROW SUPERLITE 4R, 4-PISTON, BLACK POWDER COAT Kit will fit 1990 thru 2006 YJ & TJ Series vehicles with conversion to 87-89 YJ Series sp
Engine VIN Code	P

Make	JEEP
Model	CHEROKEE
Submodel	BASE
Beginning Year	1991
Ending Year	1993
Engine Type	L4
Engine Size	2.5L/150
Engine Family	AMC 4-cylinder
Liter	2.5
CID	150
Drivetrain	RWD
Application Notes	Front Brake Type: Disc, Rear BrakeType: Drum. KIT,FRONT JEEP WRANGLER YJ 87-89,12.19x 1.10 ROTOR,VENTED; RTR:12.19-IN DIA, ULTRALITE HP 32, UNDRILLED; CLPR:FORGED NARROW SUPERLITE 4R, 4-PISTON, BLACK POWDER COAT Kit will fit 1990 thru 2006 YJ & TJ Series vehicles with conversion to 87-89 YJ Series sp
Engine VIN Code	P

Make	JEEP
Model	CHEROKEE
Submodel	BASE
Beginning Year	1991
Ending Year	1993
Engine Type	L6
Engine Size	4.0L/242
Engine Family	AMC inline 6-cylinder
Liter	4.0
CID	242
Drivetrain	4WD
Application Notes	Front Brake Type: Disc, Rear BrakeType: Drum. KIT,FRONT JEEP WRANGLER YJ 87-89,12.19x 1.10 ROTOR,VENTED; RTR:12.19-IN DIA, ULTRALITE HP 32, UNDRILLED; CLPR:FORGED NARROW SUPERLITE 4R, 4-PISTON, BLACK POWDER COAT Kit will fit 1990 thru 2006 YJ & TJ Series vehicles with conversion to 87-89 YJ Series sp
Engine VIN Code	S

Make	JEEP
Model	CHEROKEE
Submodel	BASE
Beginning Year	1991
Ending Year	1993
Engine Type	L6
Engine Size	4.0L/242
Engine Family	AMC inline 6-cylinder
Liter	4.0
CID	242
Drivetrain	RWD
Application Notes	Front Brake Type: Disc, Rear BrakeType: Drum. KIT,FRONT JEEP WRANGLER YJ 87-89,12.19x 1.10 ROTOR,VENTED; RTR:12.19-IN DIA, ULTRALITE HP 32, UNDRILLED; CLPR:FORGED NARROW SUPERLITE 4R, 4-PISTON, BLACK POWDER COAT Kit will fit 1990 thru 2006 YJ & TJ Series vehicles with conversion to 87-89 YJ Series sp
Engine VIN Code	S

Make	JEEP
Model	CHEROKEE
Submodel	BRIARWOOD
Beginning Year	1991
Ending Year	1992
Engine Type	L6
Engine Size	4.0L/242
Engine Family	AMC inline 6-cylinder
Liter	4.0
CID	242
Drivetrain	4WD
Application Notes	Front Brake Type: Disc, Rear BrakeType: Drum. KIT,FRONT JEEP WRANGLER YJ 87-89,12.19x 1.10 ROTOR,VENTED; RTR:12.19-IN DIA, ULTRALITE HP 32, UNDRILLED; CLPR:FORGED NARROW SUPERLITE 4R, 4-PISTON, BLACK POWDER COAT Kit will fit 1990 thru 2006 YJ & TJ Series vehicles with conversion to 87-89 YJ Series sp
Engine VIN Code	S

Make	JEEP
Model	CHEROKEE
Submodel	CHIEF
Beginning Year	1985
Ending Year	1985
Engine Type	L4
Engine Size	2.1L/126
Engine Family	Renault diesel 4-cylinder
Liter	2.1
CID	126
Drivetrain	RWD
Application Notes	Front Brake Type: Disc, Rear BrakeType: Drum. KIT,FRONT JEEP WRANGLER YJ 87-89,12.19x 1.10 ROTOR,VENTED; RTR:12.19-IN DIA, ULTRALITE HP 32, UNDRILLED; CLPR:FORGED NARROW SUPERLITE 4R, 4-PISTON, BLACK POWDER COAT Kit will fit 1990 thru 2006 YJ & TJ Series vehicles with conversion to 87-89 YJ Series sp
Engine VIN Code	B

Make	JEEP
Model	CHEROKEE
Submodel	CHIEF
Beginning Year	1985
Ending Year	1985
Engine Type	L4
Engine Size	2.5L/150
Engine Family	AMC 4-cylinder
Liter	2.5
CID	150
Drivetrain	4WD
Application Notes	Front Brake Type: Disc, Rear BrakeType: Drum. KIT,FRONT JEEP WRANGLER YJ 87-89,12.19x 1.10 ROTOR,VENTED; RTR:12.19-IN DIA, ULTRALITE HP 32, UNDRILLED; CLPR:FORGED NARROW SUPERLITE 4R, 4-PISTON, BLACK POWDER COAT Kit will fit 1990 thru 2006 YJ & TJ Series vehicles with conversion to 87-89 YJ Series sp
Engine VIN Code	U

Make	JEEP
Model	CHEROKEE
Submodel	CHIEF
Beginning Year	1985
Ending Year	1985
Engine Type	L4
Engine Size	2.5L/150
Engine Family	AMC 4-cylinder
Liter	2.5
CID	150
Drivetrain	RWD
Application Notes	Front Brake Type: Disc, Rear BrakeType: Drum. KIT,FRONT JEEP WRANGLER YJ 87-89,12.19x 1.10 ROTOR,VENTED; RTR:12.19-IN DIA, ULTRALITE HP 32, UNDRILLED; CLPR:FORGED NARROW SUPERLITE 4R, 4-PISTON, BLACK POWDER COAT Kit will fit 1990 thru 2006 YJ & TJ Series vehicles with conversion to 87-89 YJ Series sp
Engine VIN Code	U

Make	JEEP
Model	CHEROKEE
Submodel	CHIEF
Beginning Year	1985
Ending Year	1985
Engine Type	V6
Engine Size	2.8L/173
Engine Family	GM V6
Liter	2.8
CID	173
Drivetrain	RWD
Application Notes	Front Brake Type: Disc, Rear BrakeType: Drum. KIT,FRONT JEEP WRANGLER YJ 87-89,12.19x 1.10 ROTOR,VENTED; RTR:12.19-IN DIA, ULTRALITE HP 32, UNDRILLED; CLPR:FORGED NARROW SUPERLITE 4R, 4-PISTON, BLACK POWDER COAT Kit will fit 1990 thru 2006 YJ & TJ Series vehicles with conversion to 87-89 YJ Series sp
Engine VIN Code	W

Make	JEEP
Model	CHEROKEE
Submodel	CHIEF
Beginning Year	1985
Ending Year	1986
Engine Type	V6
Engine Size	2.8L/173
Engine Family	GM V6
Liter	2.8
CID	173
Drivetrain	4WD
Application Notes	Front Brake Type: Disc, Rear BrakeType: Drum. KIT,FRONT JEEP WRANGLER YJ 87-89,12.19x 1.10 ROTOR,VENTED; RTR:12.19-IN DIA, ULTRALITE HP 32, UNDRILLED; CLPR:FORGED NARROW SUPERLITE 4R, 4-PISTON, BLACK POWDER COAT Kit will fit 1990 thru 2006 YJ & TJ Series vehicles with conversion to 87-89 YJ Series sp
Engine VIN Code	W

Make	JEEP
Model	CHEROKEE
Submodel	CHIEF
Beginning Year	1985
Ending Year	1987
Engine Type	L4
Engine Size	2.1L/126
Engine Family	Renault diesel 4-cylinder
Liter	2.1
CID	126
Drivetrain	4WD
Application Notes	Front Brake Type: Disc, Rear BrakeType: Drum. KIT,FRONT JEEP WRANGLER YJ 87-89,12.19x 1.10 ROTOR,VENTED; RTR:12.19-IN DIA, ULTRALITE HP 32, UNDRILLED; CLPR:FORGED NARROW SUPERLITE 4R, 4-PISTON, BLACK POWDER COAT Kit will fit 1990 thru 2006 YJ & TJ Series vehicles with conversion to 87-89 YJ Series sp
Engine VIN Code	B

Make	JEEP
Model	CHEROKEE
Submodel	CHIEF
Beginning Year	1986
Ending Year	1988
Engine Type	L4
Engine Size	2.5L/150
Engine Family	AMC 4-cylinder
Liter	2.5
CID	150
Drivetrain	4WD
Application Notes	Front Brake Type: Disc, Rear BrakeType: Drum. KIT,FRONT JEEP WRANGLER YJ 87-89,12.19x 1.10 ROTOR,VENTED; RTR:12.19-IN DIA, ULTRALITE HP 32, UNDRILLED; CLPR:FORGED NARROW SUPERLITE 4R, 4-PISTON, BLACK POWDER COAT Kit will fit 1990 thru 2006 YJ & TJ Series vehicles with conversion to 87-89 YJ Series sp
Engine VIN Code	H

Make	JEEP
Model	CHEROKEE
Submodel	CHIEF
Beginning Year	1987
Ending Year	1988
Engine Type	L6
Engine Size	4.0L/242
Engine Family	AMC inline 6-cylinder
Liter	4.0
CID	242
Drivetrain	4WD
Application Notes	Front Brake Type: Disc, Rear BrakeType: Drum. KIT,FRONT JEEP WRANGLER YJ 87-89,12.19x 1.10 ROTOR,VENTED; RTR:12.19-IN DIA, ULTRALITE HP 32, UNDRILLED; CLPR:FORGED NARROW SUPERLITE 4R, 4-PISTON, BLACK POWDER COAT Kit will fit 1990 thru 2006 YJ & TJ Series vehicles with conversion to 87-89 YJ Series sp
Engine VIN Code	M