OIL PRESSURE SWITCH/SENSOR. FITS YANMAR MODELS: F18, FX18, F20, FX20, F24, FX24, FX32, FX42, F255, YM187, 330, 1401, 1500, 1700, 2000, 2500, 2610, 2620, 2820, 3000, 3110, 3220, 4220, 4300 .  OEM NUMBERS  121252-39450 & 124160-39450 PLEASE GIVE US YOUR MODEL NUMBER WHEN ORDERING COMPARE YOUR SWITCH TO THE PHOTOS ABOVE