Hydraulic gear pumps are driven by electric motors or engines to produce high pressure hydraulic fluid. This gear pumps is made to a standard mounting flange that can fit most applications with the same 3.25 inch mounting bolt width and 1/2" keyed shaft. Check all dimensions in the drawing with the images to confirm it fits your application. Proven high quality robust design successfully operating in many high volume applications. Used in construction, agricultural, mobile vehicles and industrial applications. Standard SAE AA 2- bolt flange mounts to many standard applications. Fluid Recommendation: SAE 10-30W (ISO VG 32 or 46 Hydraulic oil)