XCMG ZL50GN Duplex Pump 803013093

Part number 803013093 identifies a duplex pump listed for the XCMG ZL50GN wheel loader. A duplex pump combines two pumping sections in one assembly, so a correct replacement depends on more than the number printed in a parts list. The inlet and outlet arrangement, drive shaft interface, mounting face and the configuration of both pump sections should agree with the unit removed from the machine.

Practical ordering note: Send a clear photograph of the complete pump label, the port side, the mounting flange and the loader serial plate. These views help distinguish visually similar hydraulic pumps before shipment.

Why a duplex pump needs careful matching

Wheel-loader hydraulics work through connected circuits. The two sections of a duplex pump may support different demands, and an incorrect port orientation or shaft specification can prevent installation even when the housing looks similar. For this reason, 803013093 should be treated as the primary reference, while the physical interfaces and machine identity provide the final confirmation.

Typical service situation

This part is normally considered during hydraulic fault diagnosis or pump replacement on a ZL50GN. Slow response, abnormal noise or heat can have several causes, including oil condition, suction restriction, air entry, control-valve problems or internal leakage. These symptoms alone do not prove that the pump has failed. A technician should inspect the oil level and condition, filters, suction line and connected valves before replacing the assembly.

Pre-installation checklist

• Compare the full 803013093 label with the old pump rather than relying on one partial marking.

• Count and locate all ports; record thread or flange style before disconnecting hoses.

• Compare the drive shaft profile and effective length without forcing the coupling.

• Check the mounting face, bolt pattern and pilot register for a flush fit.

• Flush contaminated lines and service the specified filtration before fitting the replacement.

• Prime and start the hydraulic system according to the machine service procedure; never run a dry pump.

Information that speeds up quotation

Include the loader model, machine serial number, requested quantity and destination country. A photo of the removed assembly is especially valuable if the label is damaged. If you are comparing other hydraulic service parts, see our XCMG wheel loader gear pump 403601-608 and ZL40A.6.18A shift control valve. These links help buyers review related pump and control components without assuming interchangeability.

FAQ

Is 803013093 confirmed for every ZL50GN loader?
It is listed here for ZL50GN, but production revisions can change hydraulic interfaces. Confirm the machine serial number and old-pump label before ordering.

Can the ports be rotated to match a different pump?
Do not assume that a housing or port section can be repositioned. The internal timing, sealing and manufacturer assembly method must be respected.

What photos are most useful?
Provide the nameplate, complete port side, shaft end, mounting face and loader serial plate. Keep protective caps in place after removal when possible.

Does a noisy hydraulic system always require a new pump?
No. Air ingress, blocked suction, unsuitable oil and contamination can produce similar symptoms. Diagnose the complete circuit first.

Compatibility statement: Fitment information is based on the product record. Final supply should be confirmed from the part number, machine serial number and physical interfaces.