ruggedmade 11 gpm 2 stage hydraulic log splitter pump, 3000 psi ruggedmade this 11 gallon per minute hydraulic pump is a must have for any log splitter application. fits a wide range of applications, most commonly used on log splitters with a rated force less than 35 ton. this 2 stage gear pump allows for maximum speed without a loss of pressure. pump is preset to gear down at 500 psi. this replacement pump fits a wide variety of log splitters and outdoor power equipment. pumps work in horizontal and vertical positions. hydraulic fluid type: aw-32 10-weight (iso 32) or aw-46 20-weight (iso 46) ***not designed for use with “universal” or "tractor" hydraulic fluid*** note: suction-side filtration should be no finer than 150 micron. use of a 10-25 micron filter on the suction side of the pump is too restrictive and will cause failure.<p>make sure hydraulic fluid reservoir is not below pump to ensure a sufficient flow of oil to the pump.