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Hitachi 4332040 Oil Pressure Sensor

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Part Name	Oil Pressure Sensor
Voltage	12V/24V Auto-Sensing
Thread Size	M12 x 1.5
Connector Type	3-Pin Deutsch
Pressure Range	0-10 bar
Operating Temperature	-40°C to 125°C
Signal Output	Switch (NC/NO)
Ingress Protection	IP67
Net Weight	0.35 kg

Manufacturer No.

4332040
433-2040
4432040

OEM Part No.

4332040
4432040

Engine Part No.

Isuzu 4HK1

Interchange No.

4332041
4432041
4432042
AT213840

Fitment Vehicles

Hitachi EX100-5
Hitachi EX120-5
Hitachi EX135UR
Hitachi EX200-3
Hitachi EX200-5
Hitachi EX220-5
Hitachi EX230-5
Hitachi EX40UR-3
Hitachi ZX40U
Hitachi ZAX200
Hitachi ZAX230
John Deere 200LC
John Deere 17ZTS

The 4332040 oil pressure sensor monitors engine lubrication system pressure in Hitachi excavators equipped with Isuzu 4HK1 engines. Designed as a direct OEM replacement, it features auto-sensing 12V/24V electrical compatibility and a 3-pin Deutsch connector. The sensor activates warning signals or engine protection shutdown when oil pressure falls below critical thresholds.

Constructed with brass housing and stainless steel sensing element for resistance to vibration, thermal cycling, and hydraulic fluid exposure. Thread specification matches OEM M12 x 1.5 pitch for direct installation into engine block gallery. Interchangeable with Hitachi part numbers 433-2040 and 4432040, and cross-references to John Deere AT213840 for compatible excavator applications.