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Product details
The chrome powder-coated version of this one-inch Mopar master leaves the actuator to be selected for the installation. An integral dual reservoir and rectangular four-bolt flange make it a distinct assembly from the universal two-bolt Compact Tandem model. The manufacturer is Wilwood Engineering of Camarillo, California, established by Bill Wood in 1977. Wilwood designs and manufactures disc brake systems alongside calipers, fittings, master cylinders, rotors, brake lines and valves. Its street-performance, motorsport and specialized ranges require component selection around the demands of the complete assembly.
Technical Details
- Manufacturer part number: 260-16792-P
- Material: Aluminum
- Cylinder bore: 1.00"
- Pressure circuits: 2
- Stroke Length: 1.10 in
- Reservoir Type: Integral
- Fluid capacity: 7.8 / 4.7 oz
- Overall Length: 7.16"
- Mounting centers: 3.25 × 1.76"
- Finish: Chrome powder coat
- Native pressure ports: 1/2-20 at both circuits; use the correct included outlet adapters and seal washers
- Circuit outlet adapters: Primary: 3/8-24 or 1/2-20 inverted flare; secondary: 3/8-24 or 9/16-20 inverted flare
- Hydraulic relationship: Equal pressure output from the two circuits before external proportioning; 2:1 primary/secondary volume relationship
- Service: Factory rebuild only; do not disassemble the tandem piston assembly
- Flange-to-end references: Exact product page: 6.55 inches; DS-1520 dimensional drawing: 6.70 inches. Confirm the available installation envelope.
- Circuit routing: Primary outlet A feeds the axle with greater total effective caliper piston area, normally the front; secondary B feeds the lesser-area axle, normally the rear. Outlet locations are reversed from the original Mopar master cylinder; follow DS-1520.
- Linkage: Pushrod not included; match the existing or separately supplied actuation interface
Fitment & Compatibility
Match the actual A-, B- or E-body firewall pattern, actuator recess depth and full pedal travel. Wilwood's A/B outlet locations are reversed from the original master, so the existing line positions must not dictate circuit assignment. Use the correct supplied double-flare adapters and plugs in the chosen side ports.
Manufacturer Documents
- Wilwood product specifications
- Wilwood DS1520 instructions and specifications
- Wilwood FL162 instructions and specifications
PMB Performance brings over 20 years of brake-system experience to component selection. Send the installed cylinder, pedal and connection details if you need help checking this configuration.
