Auto Barn
Est. 1957
Wilwood

Wilwood High Volume Tandem Master Cylinder - 1in Bore

$254.04

On Backorder — Expected to ship by May 1, 2026

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Wilwood 1in bore tandem master cylinder. Lightweight aluminum construction for improved performance.

Key Features

  • This product is a Wilwood High Volume Tandem Master Cylinder with a 1-inch bore.
  • Constructed from aluminum, it weighs only 3lbs, offering a 75% weight savings over cast iron OE master cylinders.
  • Designed to fit mounting flanges ranging from 3.22 to 3.40 inches, common on most domestic cars and trucks from the mid-1960s to present.
  • Features fluid outlet ports on both sides of the bore for installation flexibility.
  • The internal stroke is set at 1.10 inches with a 2:1 volume ratio between the primary and secondary chambers.
  • This 1-inch bore master cylinder is suitable for use in both manual and power-assisted brake applications.
This master cylinder is designed for mounting flanges common to most domestic cars and trucks from the mid-1960s to the present.
Secure CheckoutFast Shipping631-982-0042
About this part

Product Details

This Wilwood High Volume Tandem Master Cylinder features a 1-inch bore and is constructed from aluminum. It's designed to replace your original cast iron master cylinder, offering a significant weight savings of about 75%, bringing the total weight down to just 3lbs. This makes it a great choice for anyone looking to reduce unsprung weight or simply upgrade to a more modern, lighter component.

The master cylinder is built for versatility, accommodating mounting flanges from 3.22 to 3.40 inches, which covers most domestic cars and trucks from the mid-1960s to the present day. It includes fluid outlet ports on both sides, giving you flexibility during installation. The internal design features a stroke set at 1.10 inches and a 2:1 volume ratio between the primary and secondary chambers, ensuring consistent fluid delivery. This 1-inch bore size is suitable for both manual and power-assisted brake applications.

For a complete brake 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.

Specifications

Brand
Wilwood
Manufacturer Part #
260-8555
UPC
889545067958

Frequently Asked Questions

Wilwood High Volume Tandem Master Cylinder - 1in Bore

$254.04