The Brake Guard HD-400 ™ Series is a patented system designed to improve the performance of vehicular hydraulic braking systems. Purely mechanical with no electronics, it compensates for transient pressure spikes associated with minor irregularities in the braking surfaces.

The two Patented hydraulic accumulators of the HD-400 ™ Series automatically dampen these transient pressure spikes, thereby increasing and equalizing energy absorption rates at each braking surface and reducing differentials of braking action between wheels.

The HD-400™ Series is specifically designed for heavy duty and commercial vehicles, such as motor homes, delivery vans, ambulances and other trucks 3/4 ton and up.