What is the primary application for this master cylinder?

This Wilwood master cylinder is designed primarily for manual brake applications. It's built to work with common domestic vehicle mount flanges, making it suitable for many cars and trucks.

What makes this master cylinder lighter than stock options?

It's machined from high-pressure die-cast aluminum, resulting in a total weight of only 3 pounds. This offers a substantial weight saving, approximately 75% less, compared to typical cast iron OE master cylinders.

Can I get a proportioning valve to go with this master cylinder?

Yes, Wilwood offers a combination proportioning valve kit separately. This kit includes brackets and stainless steel lines specifically designed to work with this master cylinder for a complete setup.

Wilwood 7/8in Tandem Master Cylinder 260-9439-BK

Name: Wilwood High Volume Tandem Master Cylinder - 7/8in Bore Black-W/Pushrod
Brand: Wilwood
SKU: wilwood-wilwood-high-volume-tandem-master-cylinder-7-8in-bore-black-w-pushrod-t14-136497
Price: 304.85 USD
Availability: InStock

Wilwood High Volume Tandem Master Cylinder - 7/8in Bore Black-W/Pushrod

$304.85

Only 3 left in stock

Wilwood 7/8in bore black tandem master cylinder. Lightweight aluminum construction for improved performance.

Key Features

Fits common domestic car and truck mount flanges from 3.22" to 3.40".
Features a 7/8-inch bore and a 1.10-inch stroke.
Aluminum construction weighs only 3 lbs, offering a 75% weight saving over cast iron types.
Includes a pushrod and is designed for manual brake applications.
Fluid outlet ports are located on both sides of the bore for installation flexibility.
Black e-coat finish provides a durable and clean look.

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Product Details

Machined from high-pressure die castings, this Wilwood tandem master cylinder features a 7/8-inch bore and a black e-coat finish. It's built primarily for manual brake applications and comes with a pushrod, ready for installation. The design accommodates common domestic car and truck mount flanges, typically ranging from 3.22 inches to 3.40 inches, making it a solid option for many vehicles from the mid-1960s to the present.

This master cylinder offers a stroke of 1.10 inches and a fluid volume ratio of 2:1 between its primary and secondary chambers, ensuring consistent braking force. Its aluminum construction results in a weight of only 3 pounds, which is a significant weight saving—about 75% less—compared to traditional cast iron master cylinders. The fluid outlet ports are conveniently located on both sides of the bore, offering flexibility during installation.

For a complete braking system upgrade, Wilwood also offers a combination proportioning valve kit, available separately, that includes brackets and stainless steel lines specifically designed to work with this master cylinder.