Overview – PLUG; COOLER BODY 8943936040 Series
The Hitachi PLUG; COOLER BODY 8943936040 fits Hitachi excavator engine cooling system core plugs and test ports; because multiple part numbers interchange, we list the related series so you can match what is on your machine.
Parts Characteristics
A steel cooler-body plug that seals a port or core hole in the Hitachi excavator engine cooling assembly. It holds coolant pressure inside the cooler body, and a weeping plug is a slow, hard-to-trace coolant loss that eventually shows as an overheating trend.
Applicable Models & Applications
Fitted to Hitachi excavator cooling bodies at the corresponding port. Confirm thread size and seat type against your parts book or the old plug – cooler-body plugs look alike but thread forms differ between models.
Maintenance & Replacement
Trace an unexplained coolant drop to the cooler body before assuming a head gasket. Many slow losses that read like major engine trouble are a weeping core plug, and the repair is minutes against days.
Use the correct-size driver and never lever a seized plug out by force. Rounding the head turns a five-minute extraction into a drill-and-extract job on a casting you do not want to crack.
Fit the new plug with the sealing method the assembly uses – sealant on the threads or a fresh crush washer as specified – and torque to specification. An over-tightened plug can crack the boss it screws into.
Replace plugs proactively when the cooling pack is off for other work. They cost almost nothing and a planned swap beats discovering a weep mid-shift in remote country.
Price Reference (USD)
The PLUG; COOLER BODY 8943936040 is offered in the USD 3-12 range, with quantity breaks available for fleet maintenance programs.
Value & Service
We supply brand-new cooler-body plugs with the thread and seat confirmed against your Hitachi model, in single units for a clean, lasting seal.
The PLUG; COOLER BODY family includes 8943967530, 8981339780; we can cross-check which one matches your serial number.
Racer Machinery ships the Hitachi PLUG; COOLER BODY 8943936040 to over 100 countries, with packaging built for the rough handling of international freight.
