Took this unit off my 3T 11000, this spring. Hard to read the stamping but I think it says, B 3380 1001-1 AU. Not sure of the condition, when the control is activated you could hear the engine note change slightly...pumping against a closed kwik connect. Anyway, it's all there ready to bolt up, spline sleeve, studs, adapter casting. I have no clue as to the range of machines this may fit. 150 bucks will take it. Sorry, no pictures, Chinese computer mad at Taiwan camera. I'm 40 miles west of Weed Calif.