Applications & hydraulic duty

Tractor hydraulic gear pumps supply oil to circuits for steering assistance, hydraulic lifts, remote valves and implement services, depending on the tractor design. In replacement work, the old pump is the most useful reference: its drive coupling, mounting face, shaft rotation and port arrangement are just as important as a familiar part number.

The range below includes single-section and tandem configurations across Ford, Deutz, Deutz-Fahr, Fiat, Massey Ferguson, John Deere, Parker and UTB reference families. Treat brand and part numbers as identification aids, not proof of drop-in interchangeability.

How a tractor gear-pump circuit works

Available models & technical comparison

Use the table to narrow a replacement search by reference family, displacement, pressure limit, rotation and connection sizes. The reference numbers are shown for identification. Confirm dimensions and drive-end geometry against the pump removed from the tractor.

Reading the figures: a value such as 18/12 ml/rev or 30/14 ml/rev denotes two pump sections. Bar and MPa values are shown in the original stated units. Where a specification is not available, measure the existing unit or request a drawing rather than assuming a value from a neighboring model.

Choosing the correct replacement configuration

An existing part reference is a useful starting point, especially for Ford 600-series and 3K514 references, Massey Ferguson MF #9 / #10 assemblies and Fiat 480/640 variants. It is not enough on its own. Check the direction of rotation, the inlet and discharge positions, the mounting diameter, bolt centers and engagement depth of the drive shaft.

The Fiat 640BH/480BH and 640SH/480SH references illustrate why a common body size or a matching displacement cannot be the only selection rule: direction and connection details still matter. For the Deutz tandem and John Deere RE73947 double-section pumps, match both pumping circuits and their separate outlet arrangements before selecting a substitute.

OEM cross-reference, installation & maintenance

For a reliable cross-reference, supply a photograph of the old pump nameplate and shaft end, a front-on mounting-face photo, tractor model and serial range, oil-port measurements and the number of hydraulic sections. Where dimensions are missing, an old sample or a dimensioned drawing is the safest basis for comparison.

Before installation, inspect the drive coupling, flush contaminated lines where needed, fill or prime according to the machine service procedure and verify that suction is unrestricted. After the initial run, check for cavitation noise, leaks, unusually hot oil and slow hydraulic response. These symptoms can come from the circuit as well as the pump.

Third-party brand names and trademarks are used only for product identification, cross-reference and selection. They remain the property of their respective owners. These references do not imply affiliation, sponsorship, authorization or endorsement.

Frequently asked questions

Ordering, samples & delivery

Minimum order quantity (MOQ) is assessed by pump type, specification and total order value. Where production conditions allow, orders of just 1–2 units can be quoted, although the unit price will usually be higher than for a batch order.

Trade terms: EXW, FOB, CIF and DAP are normally available. FCA, CFR, CPT, CIP and DDP can be discussed according to the destination and shipment requirements. Final availability, lead time and the agreed Incoterm will be confirmed in the quotation.