Wilwood AERO4 RearTruck Kit 14.25in 1999-2010 GM 1500-SUV 1 Piston OE Caliper

SKU: WIL140-9407

Disc Brake Kits

WIL Aero Brake Kit...

Wilwood

Wilwood AERO4 RearTruck Kit 14.25in 1999-2010 GM 1500-SUV 1 Piston OE Caliper

SKU: WIL140-9407

Disc Brake Kits

WIL Aero Brake Kit...

LOW STOCK! Est Ship 3-5 days. HURRY! LOW STOCK. This item is in limited stock at one of our distribution centres. The ETA is the approximate time required to prepare your order for dispatch.

We accept

Description

AERO4 Big Brake rear axle kits replace the factory disc brakes and use the OE parking brake assembly as a compliment to front big brake upgrades on late model trucks and SUV’s. High capacity braking from the AERO4 calipers, BP-10 compound pads, and oversized rotors are matched to the OE master cylinder output, ABS function, and individual vehicle bias requirements. Enhanced brake performance, increased durability, and high-tech style compliment big wheel, tire, and suspension upgrades on customized vehicles, tow rigs, and all others with increased brake requirements from high GVW.

Part Type

Disc Brake Kits

Data: v4.2 - Upd: 2026-10-13 21:16:11

Specifications

Product Attributes - UPC: 889545031843
Product Attributes - Brand: Wilwood Disc Brakes
Product Attributes - Notes: Fits 6 lug applications. Replaces models with single rear piston calipers.
Product Attributes - Position: Rear
Product Attributes - Quantity: Sold as a kit.
Product Attributes - Part Type: Disc Brake Kits
Product Attributes - Product Line: Wilwood W4A Rear Disc Brake Kits
Product Attributes - Rear Rotor Style: Slotted surface
Product Attributes - Rear Caliper Color: Black
Product Attributes - Parking Brake Style: Internal drum
Product Attributes - Rear Rotor Diameter: 14.25 in./361.95mm
Product Attributes - Rear Rotor Included: Yes
Product Attributes - Brake Hoses Included: No
Product Attributes - Front Rotor Included: No
Product Attributes - Rear Caliper Included: Yes
Product Attributes - Rear Caliper Material: Forged billet aluminum
Product Attributes - Brake Booster Included: No
Product Attributes - Front Caliper Included: No
Product Attributes - Front Spindles Included: No
Product Attributes - Parking Brake Provision: Yes
Product Attributes - Rear Rotor Construction: Vented
Product Attributes - Master Cylinder Included: No
Product Attributes - Manufacturer's Part Number: 140-9407
Product Attributes - Rear Rotor Thickness (in.): 1.25
Product Attributes - Rear Caliper Piston Quantity: Four
Product Attributes - Brake Rotor Bolt Pattern (mm): 6 x 139.70mm
Product Attributes - Brake Rotor Bolt Pattern (in.): 6 x 5.50 in.
Product Attributes - Minimum Recommended Wheel Diameter (in.): 18 in.

Reference Information

Brand Name/s	Wilwood
StreetFX SKU	wil140-9407
SFX Item ID	4404503
Supplier Item Code	4404503
Manufacturer SKU	140-9407
Manufacturer UPC	889545031843
Alternative References	AERO4, 14.25in, 1500-SUV

Compatibility

Application Data

Make	CADILLAC
Model	ESCALADE
Submodel	BASE
Beginning Year	2002
Ending Year	2005
Engine Type	V8
Engine Size	5.3L/325
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Liter	5.3
CID	325
CC	5328
Drivetrain	RWD
Application Notes	Front Brake Type: Disc, Rear BrakeType: Disc. KIT,REAR,GM TRK/SUV,1500,99-UP OE 1 PISTON CALIPER,14.25 ROTOR; RTR:14.25-IN DIA, GT 72 CURVED VANE, SLOTTED; CLPR:AERO4, 4-PISTON, BLACK POWDER COAT For OE rears with single piston calipers. 16" Front kits use Flexline kit 220-8998. 14.25" Front kits use
Engine VIN Code	T

Make	CADILLAC
Model	ESCALADE
Submodel	BASE
Beginning Year	2002
Ending Year	2006
Engine Type	V8
Engine Size	6.0L/364
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Liter	6.0
CID	364
CC	5967
Drivetrain	RWD
Application Notes	Front Brake Type: Disc, Rear BrakeType: Disc. KIT,REAR,GM TRK/SUV,1500,99-UP OE 1 PISTON CALIPER,14.25 ROTOR; RTR:14.25-IN DIA, GT 72 CURVED VANE, SLOTTED; CLPR:AERO4, 4-PISTON, BLACK POWDER COAT For OE rears with single piston calipers. 16" Front kits use Flexline kit 220-8998. 14.25" Front kits use
Engine VIN Code	N

Make	CADILLAC
Model	ESCALADE
Submodel	BASE
Beginning Year	2007
Ending Year	2008
Engine Type	V8
Engine Size	6.2L/376
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Liter	6.2
CID	376
CC	6162
Drivetrain	AWD
Application Notes	Front Brake Type: Disc, Rear BrakeType: Disc. KIT,REAR,GM TRK/SUV,1500,99-UP OE 1 PISTON CALIPER,14.25 ROTOR; RTR:14.25-IN DIA, GT 72 CURVED VANE, SLOTTED; CLPR:AERO4, 4-PISTON, BLACK POWDER COAT For OE rears with single piston calipers. 2007-Up, 16" Front kits use Flexline kit 220-10980. 14.25" Fron
Engine VIN Code	8

Make	CADILLAC
Model	ESCALADE
Submodel	BASE
Beginning Year	2007
Ending Year	2008
Engine Type	V8
Engine Size	6.2L/376
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Liter	6.2
CID	376
CC	6162
Drivetrain	RWD
Application Notes	Front Brake Type: Disc, Rear BrakeType: Disc. KIT,REAR,GM TRK/SUV,1500,99-UP OE 1 PISTON CALIPER,14.25 ROTOR; RTR:14.25-IN DIA, GT 72 CURVED VANE, SLOTTED; CLPR:AERO4, 4-PISTON, BLACK POWDER COAT For OE rears with single piston calipers. 2007-Up, 16" Front kits use Flexline kit 220-10980. 14.25" Fron
Engine VIN Code	8

Make	CADILLAC
Model	ESCALADE
Submodel	BASE
Beginning Year	2009
Ending Year	2009
Engine Type	V8
Engine Size	6.2L/376
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Liter	6.2
CID	376
CC	6162
Drivetrain	AWD
Application Notes	Front Brake Type: Disc, Rear BrakeType: Disc. KIT,REAR,GM TRK/SUV,1500,99-UP OE 1 PISTON CALIPER,14.25 ROTOR; RTR:14.25-IN DIA, GT 72 CURVED VANE, SLOTTED; CLPR:AERO4, 4-PISTON, BLACK POWDER COAT For OE rears with single piston calipers. 2007-Up, 16" Front kits use Flexline kit 220-10980. 14.25" Fron
Engine VIN Code	2

Make	CADILLAC
Model	ESCALADE
Submodel	BASE
Beginning Year	2009
Ending Year	2009
Engine Type	V8
Engine Size	6.2L/376
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Liter	6.2
CID	376
CC	6162
Drivetrain	RWD
Application Notes	Front Brake Type: Disc, Rear BrakeType: Disc. KIT,REAR,GM TRK/SUV,1500,99-UP OE 1 PISTON CALIPER,14.25 ROTOR; RTR:14.25-IN DIA, GT 72 CURVED VANE, SLOTTED; CLPR:AERO4, 4-PISTON, BLACK POWDER COAT For OE rears with single piston calipers. 2007-Up, 16" Front kits use Flexline kit 220-10980. 14.25" Fron
Engine VIN Code	2

Make	CADILLAC
Model	ESCALADE
Submodel	BASE
Beginning Year	2010
Ending Year	2012
Engine Type	V8
Engine Size	6.2L/376
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Liter	6.2
CID	376
CC	6162
Drivetrain	RWD
Application Notes	Front Brake Type: Disc, Rear BrakeType: Disc. KIT,REAR,GM TRK/SUV,1500,99-UP OE 1 PISTON CALIPER,14.25 ROTOR; RTR:14.25-IN DIA, GT 72 CURVED VANE, SLOTTED; CLPR:AERO4, 4-PISTON, BLACK POWDER COAT For OE rears with single piston calipers. 2007-Up, 16" Front kits use Flexline kit 220-10980. 14.25" Fron
Engine VIN Code	F

Make	CADILLAC
Model	ESCALADE
Submodel	BASE
Beginning Year	2014
Ending Year	2014
Engine Type	V8
Engine Size	6.2L/376
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Liter	6.2
CID	376
CC	6162
Drivetrain	AWD
Application Notes	Front Brake Type: Disc, Rear BrakeType: Disc. KIT,REAR,GM TRK/SUV,1500,99-UP OE 1 PISTON CALIPER,14.25 ROTOR; RTR:14.25-IN DIA, GT 72 CURVED VANE, SLOTTED; CLPR:AERO4, 4-PISTON, BLACK POWDER COAT For OE rears with single piston calipers. 2007-Up, 16" Front kits use Flexline kit 220-10980. 14.25" Fron
Engine VIN Code	F

Make	CADILLAC
Model	ESCALADE
Submodel	BASE
Beginning Year	2014
Ending Year	2014
Engine Type	V8
Engine Size	6.2L/376
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Liter	6.2
CID	376
CC	6162
Drivetrain	RWD
Application Notes	Front Brake Type: Disc, Rear BrakeType: Disc. KIT,REAR,GM TRK/SUV,1500,99-UP OE 1 PISTON CALIPER,14.25 ROTOR; RTR:14.25-IN DIA, GT 72 CURVED VANE, SLOTTED; CLPR:AERO4, 4-PISTON, BLACK POWDER COAT For OE rears with single piston calipers. 2007-Up, 16" Front kits use Flexline kit 220-10980. 14.25" Fron
Engine VIN Code	F

Make	CADILLAC
Model	ESCALADE
Submodel	BASE
Beginning Year	2015
Ending Year	2018
Engine Type	V8
Engine Size	6.2L/376
Engine Family	Chevy small block Gen V
Liter	6.2
CID	376
CC	6162
Drivetrain	4WD
Application Notes	Front Brake Type: Disc, Rear BrakeType: Disc. KIT,REAR,GM TRK/SUV,1500,99-UP OE 1 PISTON CALIPER,14.25 ROTOR; RTR:14.25-IN DIA, GT 72 CURVED VANE, SLOTTED; CLPR:AERO4, 4-PISTON, BLACK POWDER COAT For OE rears with single piston calipers. 2007-Up, 16" Front kits use Flexline kit 220-10980. 14.25" Fron
Engine VIN Code	J

Make	CADILLAC
Model	ESCALADE
Submodel	BASE
Beginning Year	2015
Ending Year	2018
Engine Type	V8
Engine Size	6.2L/376
Engine Family	Chevy small block Gen V
Liter	6.2
CID	376
CC	6162
Drivetrain	RWD
Application Notes	Front Brake Type: Disc, Rear BrakeType: Disc. KIT,REAR,GM TRK/SUV,1500,99-UP OE 1 PISTON CALIPER,14.25 ROTOR; RTR:14.25-IN DIA, GT 72 CURVED VANE, SLOTTED; CLPR:AERO4, 4-PISTON, BLACK POWDER COAT For OE rears with single piston calipers. 2007-Up, 16" Front kits use Flexline kit 220-10980. 14.25" Fron
Engine VIN Code	J

Make	CADILLAC
Model	ESCALADE ESV
Submodel	BASE
Beginning Year	2007
Ending Year	2008
Engine Type	V8
Engine Size	6.2L/376
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Liter	6.2
CID	376
CC	6162
Drivetrain	AWD
Application Notes	Front Brake Type: Disc, Rear BrakeType: Disc. KIT,REAR,GM TRK/SUV,1500,99-UP OE 1 PISTON CALIPER,14.25 ROTOR; RTR:14.25-IN DIA, GT 72 CURVED VANE, SLOTTED; CLPR:AERO4, 4-PISTON, BLACK POWDER COAT For OE rears with single piston calipers. 2007-Up, 16" Front kits use Flexline kit 220-10980. 14.25" Fron
Engine VIN Code	8

Make	CADILLAC
Model	ESCALADE ESV
Submodel	BASE
Beginning Year	2008
Ending Year	2008
Engine Type	V8
Engine Size	6.2L/376
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Liter	6.2
CID	376
CC	6162
Drivetrain	RWD
Application Notes	Front Brake Type: Disc, Rear BrakeType: Disc. KIT,REAR,GM TRK/SUV,1500,99-UP OE 1 PISTON CALIPER,14.25 ROTOR; RTR:14.25-IN DIA, GT 72 CURVED VANE, SLOTTED; CLPR:AERO4, 4-PISTON, BLACK POWDER COAT For OE rears with single piston calipers. 2007-Up, 16" Front kits use Flexline kit 220-10980. 14.25" Fron
Engine VIN Code	8

Make	CADILLAC
Model	ESCALADE ESV
Submodel	BASE
Beginning Year	2009
Ending Year	2009
Engine Type	V8
Engine Size	6.2L/376
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Liter	6.2
CID	376
CC	6162
Drivetrain	AWD
Application Notes	Front Brake Type: Disc, Rear BrakeType: Disc. KIT,REAR,GM TRK/SUV,1500,99-UP OE 1 PISTON CALIPER,14.25 ROTOR; RTR:14.25-IN DIA, GT 72 CURVED VANE, SLOTTED; CLPR:AERO4, 4-PISTON, BLACK POWDER COAT For OE rears with single piston calipers. 2007-Up, 16" Front kits use Flexline kit 220-10980. 14.25" Fron
Engine VIN Code	2

Make	CADILLAC
Model	ESCALADE ESV
Submodel	BASE
Beginning Year	2009
Ending Year	2009
Engine Type	V8
Engine Size	6.2L/376
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Liter	6.2
CID	376
CC	6162
Drivetrain	RWD
Application Notes	Front Brake Type: Disc, Rear BrakeType: Disc. KIT,REAR,GM TRK/SUV,1500,99-UP OE 1 PISTON CALIPER,14.25 ROTOR; RTR:14.25-IN DIA, GT 72 CURVED VANE, SLOTTED; CLPR:AERO4, 4-PISTON, BLACK POWDER COAT For OE rears with single piston calipers. 2007-Up, 16" Front kits use Flexline kit 220-10980. 14.25" Fron
Engine VIN Code	2

Make	CADILLAC
Model	ESCALADE ESV
Submodel	BASE
Beginning Year	2010
Ending Year	2012
Engine Type	V8
Engine Size	6.2L/376
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Liter	6.2
CID	376
CC	6162
Drivetrain	RWD
Application Notes	Front Brake Type: Disc, Rear BrakeType: Disc. KIT,REAR,GM TRK/SUV,1500,99-UP OE 1 PISTON CALIPER,14.25 ROTOR; RTR:14.25-IN DIA, GT 72 CURVED VANE, SLOTTED; CLPR:AERO4, 4-PISTON, BLACK POWDER COAT For OE rears with single piston calipers. 2007-Up, 16" Front kits use Flexline kit 220-10980. 14.25" Fron
Engine VIN Code	F

Make	CADILLAC
Model	ESCALADE ESV
Submodel	BASE
Beginning Year	2014
Ending Year	2014
Engine Type	V8
Engine Size	6.2L/376
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Liter	6.2
CID	376
CC	6162
Drivetrain	AWD
Application Notes	Front Brake Type: Disc, Rear BrakeType: Disc. KIT,REAR,GM TRK/SUV,1500,99-UP OE 1 PISTON CALIPER,14.25 ROTOR; RTR:14.25-IN DIA, GT 72 CURVED VANE, SLOTTED; CLPR:AERO4, 4-PISTON, BLACK POWDER COAT For OE rears with single piston calipers. 2007-Up, 16" Front kits use Flexline kit 220-10980. 14.25" Fron
Engine VIN Code	F

Make	CADILLAC
Model	ESCALADE ESV
Submodel	BASE
Beginning Year	2014
Ending Year	2014
Engine Type	V8
Engine Size	6.2L/376
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Liter	6.2
CID	376
CC	6162
Drivetrain	RWD
Application Notes	Front Brake Type: Disc, Rear BrakeType: Disc. KIT,REAR,GM TRK/SUV,1500,99-UP OE 1 PISTON CALIPER,14.25 ROTOR; RTR:14.25-IN DIA, GT 72 CURVED VANE, SLOTTED; CLPR:AERO4, 4-PISTON, BLACK POWDER COAT For OE rears with single piston calipers. 2007-Up, 16" Front kits use Flexline kit 220-10980. 14.25" Fron
Engine VIN Code	F

Make	CADILLAC
Model	ESCALADE ESV
Submodel	BASE
Beginning Year	2015
Ending Year	2018
Engine Type	V8
Engine Size	6.2L/376
Engine Family	Chevy small block Gen V
Liter	6.2
CID	376
CC	6162
Drivetrain	4WD
Application Notes	Front Brake Type: Disc, Rear BrakeType: Disc. KIT,REAR,GM TRK/SUV,1500,99-UP OE 1 PISTON CALIPER,14.25 ROTOR; RTR:14.25-IN DIA, GT 72 CURVED VANE, SLOTTED; CLPR:AERO4, 4-PISTON, BLACK POWDER COAT For OE rears with single piston calipers. 2007-Up, 16" Front kits use Flexline kit 220-10980. 14.25" Fron
Engine VIN Code	J

Make	CADILLAC
Model	ESCALADE ESV
Submodel	BASE
Beginning Year	2015
Ending Year	2018
Engine Type	V8
Engine Size	6.2L/376
Engine Family	Chevy small block Gen V
Liter	6.2
CID	376
CC	6162
Drivetrain	RWD
Application Notes	Front Brake Type: Disc, Rear BrakeType: Disc. KIT,REAR,GM TRK/SUV,1500,99-UP OE 1 PISTON CALIPER,14.25 ROTOR; RTR:14.25-IN DIA, GT 72 CURVED VANE, SLOTTED; CLPR:AERO4, 4-PISTON, BLACK POWDER COAT For OE rears with single piston calipers. 2007-Up, 16" Front kits use Flexline kit 220-10980. 14.25" Fron
Engine VIN Code	J

Make	CADILLAC
Model	ESCALADE ESV
Submodel	LUXURY
Beginning Year	2011
Ending Year	2012
Engine Type	V8
Engine Size	6.2L/376
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Liter	6.2
CID	376
CC	6162
Drivetrain	RWD
Application Notes	Front Brake Type: Disc, Rear BrakeType: Disc. KIT,REAR,GM TRK/SUV,1500,99-UP OE 1 PISTON CALIPER,14.25 ROTOR; RTR:14.25-IN DIA, GT 72 CURVED VANE, SLOTTED; CLPR:AERO4, 4-PISTON, BLACK POWDER COAT For OE rears with single piston calipers. 2007-Up, 16" Front kits use Flexline kit 220-10980. 14.25" Fron
Engine VIN Code	F

Make	CADILLAC
Model	ESCALADE ESV
Submodel	LUXURY
Beginning Year	2014
Ending Year	2014
Engine Type	V8
Engine Size	6.2L/376
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Liter	6.2
CID	376
CC	6162
Drivetrain	AWD
Application Notes	Front Brake Type: Disc, Rear BrakeType: Disc. KIT,REAR,GM TRK/SUV,1500,99-UP OE 1 PISTON CALIPER,14.25 ROTOR; RTR:14.25-IN DIA, GT 72 CURVED VANE, SLOTTED; CLPR:AERO4, 4-PISTON, BLACK POWDER COAT For OE rears with single piston calipers. 2007-Up, 16" Front kits use Flexline kit 220-10980. 14.25" Fron
Engine VIN Code	F

Make	CADILLAC
Model	ESCALADE ESV
Submodel	LUXURY
Beginning Year	2014
Ending Year	2014
Engine Type	V8
Engine Size	6.2L/376
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Liter	6.2
CID	376
CC	6162
Drivetrain	RWD
Application Notes	Front Brake Type: Disc, Rear BrakeType: Disc. KIT,REAR,GM TRK/SUV,1500,99-UP OE 1 PISTON CALIPER,14.25 ROTOR; RTR:14.25-IN DIA, GT 72 CURVED VANE, SLOTTED; CLPR:AERO4, 4-PISTON, BLACK POWDER COAT For OE rears with single piston calipers. 2007-Up, 16" Front kits use Flexline kit 220-10980. 14.25" Fron
Engine VIN Code	F

Make	CADILLAC
Model	ESCALADE ESV
Submodel	LUXURY
Beginning Year	2015
Ending Year	2018
Engine Type	V8
Engine Size	6.2L/376
Engine Family	Chevy small block Gen V
Liter	6.2
CID	376
CC	6162
Drivetrain	4WD
Application Notes	Front Brake Type: Disc, Rear BrakeType: Disc. KIT,REAR,GM TRK/SUV,1500,99-UP OE 1 PISTON CALIPER,14.25 ROTOR; RTR:14.25-IN DIA, GT 72 CURVED VANE, SLOTTED; CLPR:AERO4, 4-PISTON, BLACK POWDER COAT For OE rears with single piston calipers. 2007-Up, 16" Front kits use Flexline kit 220-10980. 14.25" Fron
Engine VIN Code	J

Make	CADILLAC
Model	ESCALADE ESV
Submodel	LUXURY
Beginning Year	2015
Ending Year	2018
Engine Type	V8
Engine Size	6.2L/376
Engine Family	Chevy small block Gen V
Liter	6.2
CID	376
CC	6162
Drivetrain	RWD
Application Notes	Front Brake Type: Disc, Rear BrakeType: Disc. KIT,REAR,GM TRK/SUV,1500,99-UP OE 1 PISTON CALIPER,14.25 ROTOR; RTR:14.25-IN DIA, GT 72 CURVED VANE, SLOTTED; CLPR:AERO4, 4-PISTON, BLACK POWDER COAT For OE rears with single piston calipers. 2007-Up, 16" Front kits use Flexline kit 220-10980. 14.25" Fron
Engine VIN Code	J