Yanmar 121252-39450 oil pressure switch 3JH series 4JH series
OverviewOil pressure switch for all 3JH4, 3JH5 series + 4JH3 turbo (TE, HTE & DTE), 4JH4 and 4JH5 series engines. The JH-CR (common rail) motors also have this switch.
This is the switch for the alarm.
For the oil pressure of the clock, order the oil pressure sensor.
This oil pressure switch fits the engines below.
Yanmar 3JH4 E
Yanmar 3JH5 E
Yanmar 4JH3 TE, Yanmar 4JH3 HTE, Yanmar 4JH3 DTE
Yanmar 4JH4 E, Yanmar 4JH4 AE, Yanmar 4JH4 TE, Yanmar 4JH4 HTE
Yanmar 4JH5 E
Yanmar 4JH45-CR
Yanmar 4JH57-CR
Yanmar 4JH80-CR
Yanmar 4JH110-CR