General pumps identification

I’m trying to identify my general pump so I can start ordering a seal kit for it and new ceramics but I can’t tell what serial number or anything I need for the pump. If you guys could please help me out I’d much appreciate it.

That’s a Interpump not a GP. You’ll likely just measure out the plungers. Do you own a decent caliper? What’s the plate have stamped on it? What sticker is on the belt guard?

i believe everything should be the same as a 5.5gpm, only crank is different. it’s different to make the other gpm variations.