Mityvac Brake Hydraulic System Pressure Bleeder

Mityvac Pressure Bleeders: Professional Brake Hydraulic System Service

Mityvac has been engineering precision automotive service tools since 1971, and their approach to brake hydraulic system pressure bleeding reflects more than five decades of refinement. Where vacuum-based bleeding methods require a second person or repeated trips between the master cylinder and the bleed screws, pressure bleeding flips the script — forcing fresh fluid down through the system while air and degraded fluid exit at the wheels. Mityvac's pressure bleeders are built around this top-down approach, delivering a faster, more controlled, and genuinely one-person workflow.

The MV6840: Mityvac's Flagship Pressure Bleed System

The centerpiece of Mityvac's pressure bleeding lineup is the MV6840 Professional Hydraulic Brake and Clutch Pressure Bleeding System. It is a professional hydraulic brake and clutch bleeding system that includes a fluid dispenser with manual pump (MV6400) and a kit containing seven master cylinder adapters (MVA6850). The operating principle is straightforward but highly effective: it forces new brake fluid down through the master cylinder, while air and old fluid are expelled through the bleed screw(s).

What sets the MV6840 apart from basic pressure bleeders is the level of control it gives the technician. A pressure gauge on the dispenser allows control of the system pressure, and the pressurized reservoir allows the operator hands-free movement to the bleed screws. That hands-free capability is a genuine productivity advantage in a busy shop environment — once the adapter is seated and pressure is set, a single technician can walk the entire vehicle and open each bleed screw in sequence without an assistant managing the reservoir.

Key Features That Matter in the Shop

• Wide vehicle compatibility: The MV6840 includes seven master cylinder adapters to connect to most American, Asian, and European manufactured cars and light trucks, with a large 1.2-gallon fluid capacity.
• Aeration-free fluid delivery: An integrated manual pump adds air above the fluid level to prevent aeration — critical for ensuring the fresh fluid entering the system stays bubble-free.
• Sealed internals: Internal pump components are sealed against exposure to fluids, protecting the pump mechanism from the corrosive effects of brake fluid over time.
• Controlled output: ON/OFF and flow control valve are conveniently located near the fluid output, and an integrated safety and manual pressure relief valve ensures you never over-pressurize the master cylinder.
• Quick-change connections: Quick-change connections and seven master cylinder adapters ensure broad compatibility, all stored in a durable case for shop portability.
• Rated output pressure: Max output pressure is 20 lbs. per square inch (1.4 bar), with a reservoir capacity of 1.2 gallons (5 liters).

Built for Professionals and Serious DIYers

Many Mityvac brake bleeding kits are designed to be user-friendly, making them suitable for both professional mechanics and skilled DIY enthusiasts, with clear instructions and ergonomic designs aiding ease of use. Constructed with rugged materials like die-cast metal and polyethylene, Mityvac tools withstand harsh chemicals and heavy use, making them ideal for demanding automotive environments. Whether you are refreshing brake fluid on a daily driver, prepping a track car, or servicing a fleet, Mityvac's pressure bleed system is engineered to make the job thorough, efficient, and repeatable.