201-03-71171 Upper Radiator Hose for Komatsu PC60-7 PC70-7

201-03-71171 Upper Radiator Hose for Komatsu PC60-7 PC70-7

The 201-03-71171 upper radiator hose (also referenced as 2010371171, 201-03-71170, or upper water hose) is a molded cooling system hose for Komatsu Dash-7 midi excavators powered by the Komatsu 4D95 series diesel engine. Installed in the Cooling Piping and Mounting group, it connects the engine thermostat water outlet to the upper radiator tank to circulate hot coolant for heat dissipation.

Molded from reinforced, heat-resistant EPDM rubber with a stepped 30 mm to 42 mm inner diameter profile, this replacement coolant hose maintains reliable sealing and resists thermal aging, ozone cracking, and coolant corrosion in compact excavator engine bays.

Compatible Equipment & Serial Numbers

Komatsu PC60-7 | Komatsu PC70-7 | Komatsu PC75UU-3 | Komatsu PC78US-5 | Komatsu BR100JG-2

According to Komatsu cooling system parts catalogs, part number 201-03-71171 is used across the following excavator models and selected mobile crushers:

• Komatsu PC60-7 Series (PC60-7, PC60-7-B, PC60-7E, PC60-7S): S/N 45001-UP (Sub-groups #45001-52373 and #58001-UP)

• Komatsu PC70-7 Series (PC70-7, PC70-7-B, PC70-7E): S/N 45001-UP

• Komatsu PC75UU-3 Ultra-Urban Excavator: S/N 15001-UP (#19001-UP)

• Komatsu PC78US-5 Short Tail Swing Excavator: S/N 1001-UP

• Komatsu Mobile Crushers (Secondary Application): BA100-1 (S/N 1003-UP), BR100J-1, BR100JG-1, BR100JG-2 (S/N 1301-UP)

Fitment Verification & Ordering

In the Komatsu PC60-7 cooling circuit, this upper radiator hose pairs with the corresponding lower radiator hose (201-03-71182). Please note that PC60-7 excavators equipped with the 4D95 engine use different radiator hoses than variants fitted with the 4D102 engine—always verify your engine model, machine serial number, and original part number 201-03-71171 before ordering.