MV6840 Pressure Bleed System

Mityvac MV6840

Model MV6840 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). It forces new brake fluid down through the master cylinder, while air and old fluid are expelled through the bleed screw(s). 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.


Mityvac MV6840
  • Includes seven (7) master cylinder adapters to connect to most American, Asian and European manufactured cars and light trucks
  • Large 1.2 gal. (5 l) fluid capacity
  • Fluid is dispensed under pressure for smooth continual flow
  • Integrated manual pump adds air above the fluid level to prevent aeration
  • Internal pump components are sealed against exposure to fluids
  • ON/OFF and flow control valve are conveniently located near fluid output
  • Utilizes push-to-connect, quick-change style accessory connections
  • Pressure gauge indicates fluid dispensing pressure
  • Integrated safety and manual pressure relief valve
  • Includes custom-molded storage case for adapters


  • 1.2 gal. (5 l) fluid reservoir
  • Reservoir lid with integrated manual pump (MV6400), pressure gauge, and pressure relief valve
  • 5 ft. (1.5 m) fluid dispensing hose with flow control and auto-shutoff valves
  • MVA6850 pressure bleed adapter kit (includes seven master cylinder adapters)
  • Fluid dispensing wand
  • Hanging hook
  • User’s manual


Reservoir capacity1.2 gal. (5 l)
Max pressure20 psi (1.4 bar)
Packaged weight14.4 lbs. (6.5 kg)
Size (wide x deep x tall)11.8 x 11.3 x 15.6 in. (300 x 290 x 396 mm)

How to bleed brakes using the Mityvac MV6840 Pressure Bleeder

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