应用: cooling fan drive motor for Doosan / Develon DX520 and DX520LC excavators, domed cast housing with twin base ports.
Supplied as: new aftermarket unit, HTD brand, made in China. MOQ 1 piece, wooden case, dispatch in 5 to 8 working days.
Note on part numbers: DX520 machines in the field carry more than one fan motor variant. This listing is the domed-housing unit, matched from photographs and measurements rather than from a stamped number.
Function: hydraulic fan drive pump on Doosan / Develon DX380, DX420, DX500 and DX520 excavators. This unit is built as a drop-in substitute for the A10VSO18 size 18 variable displacement platform.
Supplied as: new aftermarket part, HTD brand, made in China. MOQ 1 piece, wooden case, dispatch in 5 to 8 working days. Bench pressure checked and photographed before packing.
Match before ordering: control variant on the old pump, spline and flange face, port thread sizes, and the position of the solenoid.
Part: K1057295 hydraulic fan motor for the cooling fan drive on Doosan / Develon DX380, DX420, DX500 and DX520 excavators.
Supplied as: new aftermarket unit, HTD brand, made in China. Splined shaft, square four-bolt mounting flange and port orientation matched to the original. MOQ 1 piece, wooden case, dispatch in 5 to 8 working days.
Check before ordering: the number cast on your old motor housing and the flange bolt pattern. Trade catalogues overlap this part with 300506-0007 across generations.