This is a LOW PROFILE 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 E85 safe stainless steel, the outlet end is -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. Safe for any type of fuel, including ethanol.
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