What kind of diesel pump do you choose for a 50 horsepower tractor?

The tractor with 50 horsepower uses three series of gear oil pumps. Series 3 gear oil pumps are available in three specifications: 306, 3 10 and 3 14. Gear module is 3, displacement is 6 cm3/r, 10 cm 3/r, 14 cm3/r ... working pressure is 13. 734 MPa, which can be used in 44 hydraulic system. 1 kw agricultural tractors and combine harvesters. Dongfeng -50 tractor adopts 3 10 gear pump.