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

SKU: WIL140-9407-DR

Disc Brake Kits

WIL Aero Brake Kit...

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

SKU: WIL140-9407-DR

Disc Brake Kits

WIL Aero Brake Kit...

A$5,237.87
LOW STOCK! Est Ship 3-5 days. In stock at 2 locations (4 available)

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Description

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

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.


Data: v2 - Desc: v4.2 - Upd: 2026-11-08 08:54:00

Data: v4.2 - Upd: 2026-11-08 18:36:34

Features

Note for Pistons, Rings, Rotors, Rods and engine internals

Unless otherwise specified, some brands supply brake rotors, pistons, strut mounts, rods and rings separately. In some cases, titles may indicate plural, or 'set' - eg the term “ring set” often refers to the rings for a single piston only. If you’re unsure about what’s included with this product, please contact our team for clarification.

(keyword: piston)

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Specifications

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Wilwood, Wilwood Disc Brakes
StreetFX SKU wil140-9407-DR
SFX Item ID 4404501
Accounting SKU wil-140-9407-DR
Manufacturer SKU 140-9407-DR
Manufacturer UPC 889545031867
Alternative References WIL-140-9407-DR

Disc Brakes, W4A, Rear, Slotted/Drilled Rotors, 4-Piston Red Calipers, Chevy, GMC, Kit

These Wilwood W4A rear disc brake kits are designed to replace the factory disc brakes and still use the OEM parking brake assembly. They feature Wilwood's W4AR brake calipers, vented rotors, and BP-10 compound brake pads. Stop your ride quicker than ever before with one of these Wilwood W4A rear disc brake kits.

Product Attributes
UPC889545031867
BrandWilwood Disc Brakes
PositionRear
QuantitySold as a kit.
Part TypeDisc Brake Kits
Product LineWilwood W4A Rear Disc Brake Kits
Rear Rotor StyleCross-drilled/Slotted surface
Special AttentionReplaces models with single rear piston calipers.
Rear Caliper ColorRed
Parking Brake StyleInternal drum
Rear Rotor Diameter14.25 in./361.95mm
Rear Rotor IncludedYes
Brake Hoses IncludedNo
Front Rotor IncludedNo
Rear Caliper IncludedYes
Rear Caliper MaterialForged billet aluminum
Brake Booster IncludedNo
Front Caliper IncludedNo
Front Spindles IncludedNo
Parking Brake ProvisionYes
Rear Rotor ConstructionVented
Master Cylinder IncludedNo
Manufacturer's Part Number140-9407-DR
Rear Rotor Thickness (in.)1.25
Rear Caliper Piston QuantityFour
Brake Rotor Bolt Pattern (mm)6 x 139.70mm
Brake Rotor Bolt Pattern (in.)6 x 5.50 in.
Minimum Recommended Wheel Diameter (in.)18 in.

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