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Product details
Red AERO4 calipers pair with slotted parking-hat rotors on the documented Y61 rear interface. Retain the factory parking mechanism and check hose routing. Wilwood Engineering is a Camarillo, California manufacturer founded by Bill Wood in 1977. Disc brake design and manufacturing extend across calipers, brake rotors, master cylinders, valves, fittings and brake lines. Parts for street-performance, specialized applications and motorsport must be selected to meet the requirements of the complete brake system.
Technical Details
- Manufacturer: Wilwood
- Manufacturer part number: 140-15597-R
- Kit classification: Rear Brake Kits - Street Performance
- Axle position: Rear Kits
- Brake Type: Disc
- Selling unit: Sold as a kit.
- Rotor Outside Diameter: 14.25 in; 361.95 mm
- Rotor Thickness: 1.10 in; 27.94 mm
- Rotor Material: Iron
- Surface Type: GT Slotted
- Rotor construction: Vented
- Bolt Circle Diameter: 6 x 5.5 in; 6 x 139.7 mm
- Rotor-hat mounting-hole clearance diameter (not stud thread): 0.50 in; 12.70 mm
- Rotor surface finish: Black Electro Coat
- Rotor vane / construction reference: 42 V
- Master Cylinder Included: No
- Brake Booster Included: No
- Brake Lines Included: Yes
- Minimum wheel diameter guidance; verify clearance drawing: 18 in; 457.2 mm
- Required spindle / rear housing interface: OEM
- Spindle Included: No
- Mounting Hardware Included: Yes
- Separate wheel hubs included: No separate wheel hubs; one-piece rotor-and-parking-hat units included
- Pistons per service caliper: 4
- Service-caliper piston material: Stainless
- Service-caliper mounting: Radial
- Caliper body construction: Forged aluminum
- Caliper Color: Red
- Caliper Finish: Red Powder Coat
- Caliper Inlet Port Diameter: 1/8-27 NPT
- Caliper family: AERO4-DS
- Pad compound: BP-20
Fitment & Compatibility
The documented rear installation is the 1997–2018 Nissan Patrol Y61 configuration in DS-1326. Four-piston dust-sealed AERO4 calipers use BP-20 pads and 14.25 × 1.10-inch one-piece iron rotors with integral parking hats. Retain the original parking-brake mechanism. Rear hose kit 220-15680 is included; minor adjustment to the original hard line may be necessary for a safe connection. Check the six-on-5.50-inch interface, caliper alignment and original parking equipment. Use the wheel drawing with the nominal 18-inch minimum guidance rather than assuming every wheel of that diameter clears. The current vehicle listing specifies Japan, Near East and Africa-market Patrol Y61 applications; verify the actual regional hub and brake configuration.
Wilwood product specifications · Installation instructions
Our team at PMB Performance has over 20 years of parts and fitment experience. The existing component number and brake-system details help us check the match.
Manufacturer warning — brake pads only: WARNING: Cancer and Reproductive Harm. www.P65Warnings.ca.gov.
