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Product details
In its 1.25-inch size, this Thermlock piston carries the stainless shield within a coated aluminum body measuring 1.050 inches long. The assembly is intended for the caliper configurations Wilwood lists in its heat-barrier piston range. Disc brake systems and components are designed and manufactured by Wilwood Engineering in Camarillo, California. Founded in 1977 by Bill Wood, the company serves motorsport, specialized and street-performance applications through its calipers, rotors, master cylinders, valves, fittings and brake lines, with each item chosen to meet the complete system's specification.
Technical Details
- Manufacturer part number: 200-7555
- Supplied component: One caliper piston; verify the required seal separately
- Piston construction: Thermlock
- Material: Aluminum shell with stainless steel shield
- Piston outside diameter: 1.25 in
- Piston length: 1.050 in
- Finish: Anodize
Fitment & Compatibility
The documented families are Aerolite 6/4R, Superlite and IR-GT. Confirm the caliper number, piston position and required seal; a multi-piston caliper can contain more than one bore size.
Wilwood product specifications · Thermlock piston application guide
Use PMB Performance's more than 20 years of parts experience to confirm the assembly details before ordering; the original component number and measurements are useful starting points.
