Bosch 044 High Flow Check Valve, -6AN outlet

Finally, a quick and easy solution to adding a high-flow check valve to your Bosch fuel pump. These neat little check valves attach directly to the Bosch 044 fuel pump (or others with a M12 x 1.5 female thread outlet). Machined from billet aluminum, the outlet end is -6AN (also available in -8AN).

This will maintain fuel pressure in the lines to decrease/eliminate priming time. Also this will help fight pressure fluctuations on the pump itself, especially when used in a multiple fuel pump application such as two pumps in parallel.  Compatible with any type of fuel.