Aluminum Tandem Master Cylinder – 1 Inch Bore – Bare Finish

Tandem outlet aluminum master cylinder designed for street, performance, and custom brake systems requiring dual hydraulic circuits and reduced weight. This version features a bare aluminum finish for a clean, raw appearance or for custom coating or polishing.

The 1.00 inch bore is suitable for both manual and power-assisted brake systems and does not include a pushrod. The master cylinder uses an integral reservoir and offers outlet ports on both sides of the bore for flexible brake line routing. Designed to fit common domestic mounting flanges ranging from approximately 3.22 inches to 3.40 inches, it is compatible with many cars and trucks from the mid-1960s to present.

Machined from high-pressure die cast aluminum, this master cylinder weighs approximately 3 pounds, providing a significant weight reduction compared to cast-iron OEM units. Stroke is set at 1.10 inches with a 2:1 volume ratio between the primary and secondary chambers.

• Tandem outlet master cylinder
• 1.00 inch bore
• Aluminum construction
• Bare finish
• Integral reservoir
• Reservoir capacity: 8.0 oz / 4.8 oz (14.4 / 8.7 cu in)
• Suitable for manual and power-assisted brake systems
• Lightweight design, approximately 3 lb

Dimensions
• Bore size: 1.00 in
• Piston area: 0.780 in²
• Stroke: 1.10 in
• Overall length: 8.76 in
• Flange to end length: 8.15 in

Outlet ports
• Outlet 1: 1/2-20
Compatible fittings: 3/8-24 IF or 1/2-20 IF
• Outlet 2: 1/2-20
Compatible fittings: 3/8-24 IF or 9/16-18 IF