Wilwood 260-15097 GS Compact Integral Master Cylinder .70" Bore

Vehicle Fitment

• Universal - suitable for custom brake and clutch hydraulic systems where a compact master cylinder is required

Features

• GS Compact integral master cylinder with .70" (0.700") bore
• High-pressure die-cast aluminum body with durable black e-coat finish
• Integral reservoir with positive-seal internal cap
• Single 3/8-24 IF outlet port for fluid line connection
• Optimized internal piston and return spring for smooth pressure response
• Compact overall design fits tight engine bay and custom chassis installations
• Rebuildable design supports long service life with maintenance kits
• Works with DOT 3, DOT 4, or DOT 5.1 brake fluids

Specifications

• Part Number: 260-15097 (Wilwood GS Compact Integral Master Cylinder)
• Bore Size: .70" (0.700")
• Reservoir: Integral with sealed cap
• Outlet Port: 1x 3/8-24 IF female
• Material: High-pressure die-cast aluminum body
• Finish: Black E-coat
• Piston Stroke: ~1.25" (typical GS series)
• Reservoir Capacity: Standard GS internal volume

Included Components

• 1x GS compact integral master cylinder (Wilwood 260-15097)

Product Description

The Wilwood 260-15097 GS Compact Integral Master Cylinder is a high-performance master cylinder engineered for custom brake and clutch hydraulic systems. Featuring a .70" bore and a compact integral reservoir design, this unit provides a balance of pressure and fluid volume suitable for many street, track, and custom vehicle applications. Its die-cast aluminum body with a corrosion-resistant black e-coat finish ensures durability and long service life, even in demanding environments.

With a single 3/8-24 inverted flare outlet port and an optimized internal piston and return spring assembly, the 260-15097 delivers positive pressure control and reliable fluid delivery. The compact design and integral reservoir make this master cylinder ideal for installations with limited space, such as modified engine bays, hot rods, and custom chassis builds. As a universal component rather than a vehicle-specific part, compatibility depends on your brake or clutch system layout, mounting configuration, and hydraulic line fittings.