803079766 Swing Motor for XCMG XE490DK Excavators

803079766 is a swing motor reference for the XCMG XE490DK crawler excavator. The unit converts hydraulic power into controlled upperstructure rotation through a reduction section and output pinion. Because the swing drive handles high rotating inertia, correct brake, relief, drain, mounting and gear-interface configuration is essential; VTS confirms these points and the quoted assembly scope from the old unit.

● Replacement after verifying that swing noise or weak torque is not caused by the bearing, pinion or hydraulic supply

● Complete swing-drive sourcing where motor, reduction case and output gear inclusion must be written into the quotation

● Mining and heavy-duty repair orders requiring robust export packing and pre-shipment configuration photos

803079766 is the reference part number used to identify and review this product. XCMG identifies the equipment application and does not automatically define the brand of every quoted unit. The formal quotation will state the supplied brand, condition, assembly scope, and included or excluded components.

The main application reference for this page is the XCMG XE490DK crawler excavator. Final fitment must still be checked against the complete machine serial number, old-part identification and interface configuration. Do not order by appearance or reference part number alone.

● Full XE490DK serial number and both old-unit labels

● Hydraulic motor, reduction case and output-pinion scope

● Upper flange, lower mounting and locating diameters

● Main, return, drain, pilot and brake ports

● Relief and make-up valve configuration

● Output-pinion tooth data and swing-bearing relationship

Swing motors may differ in mounting flange, output-pinion connection, valve block, brake and relief arrangement, case-drain routing and whether the reducer is included. Compare the removed unit's identification, output, ports, valves and supply scope. Appearance or the reference part number alone cannot confirm the correct configuration.

A verified genuine option may be available when confirmed. Branded or aftermarket replacements and other supply options appropriate to this product may be discussed according to the enquiry. Final availability and supply identity are confirmed in the formal quotation.

● Actual supplied brand and product condition

● Exact supply scope and included or excluded components

● Order quantity, applicable warranty terms and lead time

● Packing, Incoterms and payment terms

For quotation, send the old-part identification, the clearest interface photos and the required quantity together with the complete machine serial number.

● Define whether the quotation covers the motor only, the motor with reducer or a wider swing-drive scope.

● Compare the output pinion, mounting flange, valve block, brake, relief, drain and pilot connections with the removed unit.

● Check brake-release pressure, relief or make-up valves, case-drain restriction, reduction gears and swing-bearing contact before replacement.

● Follow the service procedure for drain routing, lubrication, mounting alignment and initial operation.

Packaging will be selected according to the confirmed product configuration and shipping method. Hydraulic ports, the output pinion, mounting faces and valve block will be protected as applicable, with the unit supported and fixed against tipping.

The shipping method, freight and estimated transit time will be confirmed according to the quantity, packed dimensions, weight and destination.

Warranty terms depend on the selected supply option and will be stated in the formal quotation. Before payment, the quotation will confirm the reference part number, supplied brand, product condition, assembly scope, included components, quantity, warranty terms, lead time, Incoterms and payment terms. Actual pre-shipment photos can be provided.

Based in Xuzhou, China, VTS focuses on construction machinery parts supply and fitment support for international buyers.

● Fitment support focuses on the output pinion, valve block, brake configuration and quoted motor or reducer scope.

● The quotation distinguishes the supplied brand, product condition, included components and supply scope.

● Confirmed XE490DK parts can be consolidated, with international shipping coordinated for the actual order.

Is 803079766 a swing motor or complete swing drive?

The quotation will state the exact motor, reducer, output-pinion and valve scope.

Why is the output pinion photo required?

To verify tooth configuration, installation geometry and the relationship with the swing bearing.

Can a unit with different valve blocks be used?

Not without confirming brake, relief, make-up, drain and pilot functions for the machine.

What can cause harsh swing stopping?

Brake timing, relief settings, contamination, pinion backlash and reduction-gear wear can all contribute.

How is the tall assembly kept safe in transit?

It is base-mounted, braced against tipping and protected at the pinion, ports and upper valve block.

Can actual photos be supplied before shipment?

Yes, photos of the selected configuration can be provided before dispatch as agreed in the order.

Send the complete XE490DK machine serial number, old-unit nameplate and key interface photos for a 803079766 swing motor fitment review and quotation.