260-9439-BK Wilwood Brakes Brake Master Cylinder Tandem
260-9439-BK Wilwood Brakes Brake Master Cylinder Tandem
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260-9439-BK Wilwood Brakes Brake Master Cylinder Tandem
Introducing the Wilwood Brakes Brake Master Cylinder, an essential component for enhancing your vehicle's braking system. Engineered with precision and designed for performance, this tandem aluminum master cylinder ensures reliable braking power for a variety of applications.
Key Features:
- Multiple Bore Sizes: Available in 3 bore sizes - 7/8 Inch, 1 Inch, and 1.125 Inch to suit different braking needs.
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Versatile Applications:
- 7/8 Inch bore for manual applications with included pushrod.
- 1 Inch bore suitable for both manual and power-assisted applications.
- 1.125 Inch bore primarily designed for power brake applications, compatible with vacuum and hydraulic assist systems.
- Durable Construction: Machined from high-pressure die castings, offering a significant weight savings of 75% compared to traditional cast iron master cylinders, weighing only 3lbs.
- Easy Installation: Designed for mount flanges from 3.22 Inch to 3.40 Inch, common in most domestic cars and trucks from the mid-1960s to present.
- Fluid Outlet Ports: Features fluid outlet ports on both sides of the bore for flexible installation options.
- Optimized Stroke: Stroke set at 1.10 Inch with a volume ratio of 2:1 between the primary and secondary chambers for efficient fluid transfer.
- Finish Options: Available in plain, ball burnished, and black e-coat finishes to match your vehicle's aesthetics.
Specifications:
- Bore Diameter: 7/8 Inch
- Condition: New
- Port Size: 1/2 Inch-20 Outlet One / 1/2 Inch-20 Outlet Two
- Finish: Electro Coated
- Color: Black
- Material: Aluminum
- Includes Reservoir: Yes
Upgrade your braking system with the Wilwood Brakes Brake Master Cylinder Tandem. Designed for performance and built to last, it’s the perfect choice for both enthusiasts and everyday drivers looking for reliable braking solutions.
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Shipping & Returns
Shipping & Returns
📦 Shipping:
Orders are processed within 1–2 business days. Standard delivery takes 3–7 business days, depending on your location.
↩️ Returns:
You may return or exchange products within 60 days of receiving your order. Items must be in original condition with proof of purchase. If your item is defective or damaged due to manufacturing issues, we’ll replace it at no additional cost.

