This pump has the same splines as the starter gen for a solar t41 turbine. This is a Sperry Vickers 350880-6 variable displacement hydraulic pump. I've attached a link below to the manual. The pump will handle up to 73HP and a efficiency of 89 percent. It can flow up to 37 gallons a minute at 3000PSI at 3800RPM's according to the manual.
The item "Jet engine gas Turbine powered variable displacement hydraulic pump" is in sale since Sunday, March 10, 2019. This item is in the category "eBay Motors\Parts & Accessories\Aviation Parts & Accessories\Engines\Complete Engines". The seller is "turbinetechandnightvision" and is located in Big Bear City, California. This item can't be shipped, the buyer must pick up the item.