This is an ETQ Diesel Fuel Injection Pump
This is for a diesel fuel injection pump. This pump is an electronic style fuel injection pump. This pump is a direct replacement for many different brands and models. This style of pump is found on 6hp to 10hp diesel engines. These engines fall within the 186, 178, and 170 engine style groupings. Those engines are also equivalent to the Yanmar L100, L90, L75, and L70 among other engine models.
The fuel pump on these engines are shimmed. You may need to add or take shims when installing any new injection pump. The shims used for your current pump can be reused.
If your fuel pump isn’t working currently you can test it. Remove the fuel line from the injector to see if you are getting fuel. You should also be able to hear the solenoid running. If you do not have fuel or your solenoid isn’t running you need to replace the injection pump.