Genuine Bosch (044) Motorsport Fuel Pump

The standard, high output fuel pump for high performance Porsche cars.  The factory 993 GT2 cars use this same pump with Porsche Part Number: 993 620 104 80. 

Specs:
172 LPH @ 6.90 Bar

Purpose and Function
Modern EFI fuel systems circulate as much as 200 litres per hour (~ 3 litres / min ) of fuel at pressures between 2.5 - 3.5 bar ( 250 - 350 kpa )  Modern electric fuel pumps are “Positive Displacement” type pumps, this means that the pump cannot produce pressure unless it is acting upon a restriction. The only restriction in the system should be the fuel pressure regulator.  The regulator controls the system pressure; the pressure ability or flow volume capacity of the fuel pump will not alter the system pressure.
Due to the high pressure and volume requirements placed upon these pumps, manufacturing tolerances are extremely fine. Motor speeds can be as high as 10,000 RPM and the clearances within the pumping elements down to microns. Cleanliness of the fuel system is vital, with an efficient high quality filter as an essential part of the fuel system.

NOTE: We have seen and even been victim of knock off versions of these fuel pumps.  The knock off units out there as found on eBay even have similar looking packaging.  Buyers beware!

For simple installation into the 964 and 993 models, see our adapter fittings.