Different sizes of fuel pump assemblies exist to fit the varied requirements of vehicles for their varied types of engines. A Fuel Pump assembly largely depends on the fuel flow rate, pressure requirement, or design of your car. The standard Fuel Pump assemblies for ordinary passenger vehicles usually provide flow rates in a range of 30 to 150 LPH. The higher applications of performance require pumps that will deliver well over 400 LPH since they have much higher horsepower and fuel requirements.
Different types of Fuel Pump assemblies can come in different dimensions to serve specific fuel tanks. For example, a compact sedan would have a smaller Fuel Pump assembly that fits a tight space, whereas assemblies for larger trucks and SUVs can be much bigger to handle the quantity of fuel. The overall physical dimensions sometimes relate to installation compatibility-some pump designs rely on a certain fit for proper sealing and operation within the fuel tank.
Aside from flow rate and physical size, pressure specifications also differ for various Fuel Pump assemblies. Although many of the Fuel Pumps need to keep up a range of pressure at 30 to 80 psi for gasoline engines, diesel engines work at much lower pressures-15 to 30 psi, typically. Consequently, there is also quite enough variation within similar vehicle categories, as Fuel Pump assemblies must answer specific needs of the engine.
One of the incidents that took place in 2019 regarding size variation in fuel pump assemblies was a recall of some Subaru models. Indeed, the recalled Fuel Pump assemblies were defective, but they were also size variant, flowing capacity different and affected compatibility with specific vehicle models. Incidents of this kind show well how correct a choice of Fuel Pump assembly by the different needs of each vehicle in fact is.
As Henry Ford once expressed it, "Coming together is a beginning; keeping together is progress; working together is success." Indeed, not only does choosing the appropriate Fuel Pump assembly in a car help give an assurance of optimal performance, but it would also prevent future problems that may arise as far as compatibility and efficiency are concerned.
For further details on Fuel Pump assemblies in terms of their sizes and specifications, please refer to the following: Fuel Pump.