Wilwood 2004–2006 Scion xA / xB and 2000–2005 Toyota Echo Front Kit — Red Superlite 4, 12.88-inch SRP Rotors

Red Superlite calipers frame patterned Spec-37 discs on the four-lug front conversion. For Scion xA / xB and Toyota Echo, Wilwood specifies red powder-coated 4-piston calipers and 12.88-inch SRP drilled-and-slotted rotors in this front package. Bill Wood founded Wilwood Engineering in 1977. From Camarillo, California, the company designs and manufactures disc brake systems and components including calipers, brake rotors, master cylinders, valves, fittings and brake lines for motorsport, street-performance and specialized applications. This kit should be matched to the hydraulic and mechanical requirements of the complete vehicle.

Package and installation requirements

• Front hose kit 220-8336 is not included.

Fitment & Compatibility

The four-lug applications are 2004–2006 Scion xA, 2004–2006 Scion xB and 2000–2005 Toyota Echo. A later model carrying a similar name is not covered by these specific entries. The kit’s actual rotor diameter is 12.88 inches, verified by DS472 and the current rotor specification, with a 1.10-inch-thick vented Spec-37 disc. The four-piston Superlite package requires more wheel room than the factory assembly; its catalog guide starts at 17 inches and still needs a spoke-and-barrel template check. Existing hubs are retained, so verify their mounting surfaces and four-lug arrangement before assembly. Rotor-hat drilling cannot convert a different hub pattern. Wilwood’s separate front line kit must also be matched and routed for the installed suspension.

Review the fitment table and numbered notes below together; a matching model name alone does not establish the installation.

Technical Details

• Manufacturer part number: 140-8335-DR.
• Rotor/hat wheel-stud clearance patterns: 4 x 3.93 in.
• Rotor/hat stud-hole clearance diameters: 0.520 in; 13.21 mm. These are hole sizes, not wheel-stud thread specifications.
• The rotor/hat drilling does not change the vehicle hub or axle wheel bolt pattern.
• Rotor dimensions: 12.88 in; 327.15 mm diameter x 1.10 in; 27.94 mm thick.
• Rotor construction: Spec-37 Iron; vented; SRP Drilled & Slotted friction surface.
• Wheel-size guide: 17 in; 431.8 mm minimum nominal diameter; verify actual template clearance.
• Calipers: 4 pistons; forged aluminum; stainless steel pistons.
• Caliper attachment: lug mount; 1/8-27 NPT hydraulic inlet.
• Caliper finish: Red Powder Coat.
• Sold as one kit. Mounting hardware is included. Hubs are not included.
• Brake pads are included; use the compound and installation instructions specified for this rotor package.
• Spindles, master cylinder, brake booster and hydraulic brake lines are not included.

Manufacturer references

• Wilwood product and configuration information
• Installation instructions

For help selecting the correct package, contact PMB Performance with the installed brake and mounting details. Our team has over 20 years of experience with brake components and fitment.

WARNING: This product can expose you to chemicals including Arsenic, Cadmium, Chromium (Hexavalent compounds), Lead, Nickel, Cobalt and Antimony Trioxide which are known to the State of California to cause cancer or other reproductive harm. For more information go to www.p65warnings.ca.gov.

Vehicle Applications

Application Notes

1. Line kit included (manufacturer): None
2. Front line-kit reference: 220-8336