82℃ Thermostat 8-94472331-1 Fit for Hitachi EX120-3 EX100-2 EX120-2 EX100-2 4BD1

82℃ Thermostat for Hitachi EX120-3 EX100-2 EX120-2 EX100-2 4BD1

This 82℃ thermostat is a direct replacement part for Hitachi excavators, regulating engine coolant temperature to maintain optimal operating conditions. It carries OEM cross-reference number 8-94472331-1 and fits multiple Hitachi models equipped with the 4BD1 engine.

Overview

This 82℃ thermostat for Hitachi EX120-3, EX100-2, EX120-2, and EX100-2 ensures the engine reaches and maintains its ideal temperature quickly, reducing wear and improving fuel efficiency. It is built for hydraulic excavators powered by the Isuzu 4BD1 diesel engine, delivering consistent thermal management in demanding conditions. The thermostat activates at 82 degrees Celsius, providing reliable cooling system performance.

Built For Performance

• Precise 82°C opening temperature matches original specifications
• OEM cross-reference 8-94472331-1 ensures exact fit
• High-quality wax element provides responsive and accurate temperature control
• Corrosion-resistant construction extends service life in harsh environments
• Direct replacement design simplifies installation

Fits These Machines

• for Hitachi EX120-3
• for Hitachi EX100-2
• for Hitachi EX120-2
• for Hitachi EX100-2

On-The-Job Use

• Used in construction sites for digging and earthmoving operations
• Keeps the 4BD1 engine running at proper temperature during extended work shifts
• Essential for maintaining cooling system integrity in hot climates or heavy load conditions
• Ideal for routine engine cooling system maintenance and repair

Specs At A Glance

Good To Know

Q: How do I know if my thermostat is failing? A: Common signs include engine overheating or running too cool, which affects performance and fuel economy. Replacing with this 82°C thermostat restores proper temperature regulation.

Q: Can I install this thermostat myself? A: Yes, it is a straightforward replacement for most mechanics. Ensure the cooling system is cool and drained before removal, and always check the gasket condition during installation.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.