3525VQ-32A. 101cc-52.5cc Flanged Ports 1 1/4″ Keyed Shaft SAE C 2 Bolt Mount double pump are a fixed displacement. high performing intra-vane pump that features high pressure and speed for many applications. If need be these pumps are interchangeable so if you require a different ‘shaft. port orientation. mounting and or rotation please contact Timalco sales.