High Pressure Hydraulic Gear Pump Hgp-1a Hydraulic Gear Oil Pump. Model : Hgp This pump has a simple structure, low noise, stable oil delivery, good self-priming, and reliable work. Our differential rear oil pump is easy to install, no need for complicated tools, easy to use, direct replacement for your old or broken one. They are manufactured to OEM specification and are ideal replacement for the original cars. This differential rear oil pump is made of high quality material, which are not easy to damage, wear-resistant and corrosion-resistant, high reliability, stable performance, strong and sturdy, long service life., Manufacturer: KNZVUUY