Wilwood Anodized Superlite 4 12.88-inch SRP Front Brakes — Toyota Echo 2000–2005 / Scion xA and xB 2004–2006

The anodized SRP option supplies drilled-and-slotted 12.88-inch discs for the listed Scion and Echo front hubs. The supplied Type III anodized 4-piston calipers and 12.88-inch SRP drilled-and-slotted rotors are configured for Scion xA / xB and Toyota Echo. Wilwood Engineering began in 1977 under founder Bill Wood and is based in Camarillo, California. The company designs and manufactures disc brake systems and components for motorsport, street-performance and specialized vehicles. Calipers, rotors, master cylinders, valves, fittings and brake lines must be selected around the needs of the complete system.

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.

Use the complete vehicle row and its application notes below to check model year, trim and original brake equipment.

Technical Details

• Manufacturer part number: 140-8335-D.
• Calipers: 4 pistons; forged aluminum; stainless steel pistons.
• Caliper attachment: lug mount; 1/8-27 NPT hydraulic inlet.
• Caliper finish: Type III anodized.
• 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.
• 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.
• Wheel-size guide: 17 in; 431.8 mm minimum nominal diameter; verify actual template clearance.

Package and installation requirements

• Front hose kit 220-8336 is not included.

Manufacturer references

• Wilwood product and configuration information
• Installation instructions

With over 20 years of experience, PMB Performance can help you work through the mounting and brake-system details before ordering. Include your vehicle information and any axle, hub or spindle changes when contacting us.

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