PLP20.11,2-03S1-LOF/OC/20.7,2-L**/OC-S7 Casappa Double Pump. Front Pump is .69 cu in/rev, SAE "A" 9 tooth splined shaft, SAE "A" 2 bolt mount with 1" side inlet, 5/8" excess flow port; Rear Pump is .44 cu in/rev w/ reversible rotation and 5/8" excess flow port