BB4 piston vacuum pump, no motor. For about 4 seasons, ending in 2020, I used this pump on my 400 tap sugarbush. It gave me 26-27" vacuum. This year as I was testing it for a prospective buyer the pump did well, but the motor it turns out had a short in the windings, thus, selling without a motor. This is a heavy pump, it will not likely fit in most car trunks. I think the motor it had was a 3 hp 1725 or 1800 RPM motor, however there was no tag. please email dave@cnymaple for info. This is being held for a previous buyer, who needed it for the shaft to get his BB4 running again.