Wilwood High Volume Tandem Master Cylinder - 15/16in Bore-W/Pushrod

Wilwood is well-known for making performance brake components, and this High Volume Tandem Master Cylinder is a great example of their work. If you're working on a manual brake setup for a domestic car or truck from the mid-1960s to today, this master cylinder is designed to fit the common mount flanges, which typically measure between 3.22” and 3.40”. It includes a pushrod and has fluid outlet ports on both sides, giving you flexibility during installation.

This master cylinder is machined from high-pressure die castings, making it a lightweight aluminum unit that weighs only 3lbs. That's about a 75% weight savings compared to heavier cast iron OE master cylinders. The internal design features a 1.10” stroke and a 2:1 volume ratio between the primary and secondary chambers, which is important for consistent braking performance. Wilwood also offers a combination proportioning valve kit (PN 260-13190 or 220-13189) that works well with this master cylinder if you need to fine-tune your brake bias.