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Product details
The right-side bracket changes the installation envelope of this black Mopar manual kit. Its 15/16-inch compact master has a four-bolt mounting flange, a supplied pushrod and separate hydraulic circuits. Master cylinders are part of Wilwood Engineering's wider disc brake range, alongside calipers, rotors, valves, fittings and brake lines. Wilwood was founded in 1977 by Bill Wood and designs and manufactures its systems from Camarillo, California for motorsport, specialized and street-performance applications. Hydraulic sizing and mechanical compatibility remain decisions for the complete brake system.
Technical Details
- Manufacturer part number: 261-17796-BK
- Material: Aluminum
- Cylinder bore: 15/16"
- Pressure circuits: 2
- Stroke Length: 1.10 in
- Reservoir Type: Integral
- Fluid capacity: 7.8 / 4.7 oz
- Overall Length: 8.92"
- Mounting centers: 3.25 × 1.76"
- Finish: Black E-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
- Kit contents: Master cylinder, right-side combination proportioning valve and bracket, formed stainless connecting tubes and mounting hardware
- Combination-valve functions: Adjustable rear pressure, isolated front/rear circuits, front-line junction and hydraulic brake-light switch
- 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: Included pushrod with Mopar eyelet; 3/8-24 adjustment thread. The drawing identifies a 2.00-inch eyelet, not the complete pushrod length.
Fitment & Compatibility
Check the actual Mopar pedal connection and right-side tube clearance. Confirm flange fit and the brake-line adapters' thread and flare details.
Manufacturer Documents
- Wilwood product specifications
- Wilwood DS1520 instructions and specifications
- Wilwood FL162 instructions and specifications
- Wilwood DS1178 instructions and specifications
PMB Performance has more than 20 years of experience matching brake components. Share the actual mounting, linkage and hydraulic arrangement when requesting fitment assistance.