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Some Kohler parts are obtainable from Grainger. For the Block Heater, HotStart does offer a heater with a Y cable.

Name of Part Kohler Part Number Cross Referenced Part number
Mag Pickup 255750 XXXX
Alternator End Crank Sensor 30120 241623 241927 GM70486
Voltage Regulator Board Kohler A-360800 72-360800-00
Split Activator Photo Board Kohler 258218 Kohler 292902 Aliexpress
Low Fuel Sensor Kohler 224804 Madison M8000
Coolant Heater 1500w XXXX Hotstart TPS151
Coolant Heater 1000w XXXX Hotstart TPS101
Coolant Level Sensor 2 wire XXXX  
Plastic 2 wire CLS GM66270 XXXX
Coolant Level Sensor 3 wire 273520  
Coolant Temp Sender XXXX  
Oil Pressure Sensor XXXX  
Door Lock XXXX  
Decision Maker Control Board XXXX  
Coolant Temp Switch RE503242 Generic available on Amazon
20/40REOZJB Speed Control GMXXXX ESD2402
Woodward Controller DYN1-10726-XXX-X-XX Barber Colman DYN1?
Battery Charger GM96383 Marinco ChargePro
Older 40REOZJB Door latch GM29980/GM31787 XXXX
Newer 20ROZJB Latch GM13555 Htl903b
Door Latch GM253373  
Door Latch GM31202  
Cummins Kohler Onan Latch 0406-0972-01 N/A
DEC3 Control Board XXXX  
Battery Charger GMXXXXX Superceeds to GM96383
Door Hinge 297601 XXXXX
Radiator cap 229980 XXXXX
Lift pump Deere XXXXX RE38009
Fuel Filter ORing kit RE516553 XXXXX

Decision Maker Variants

  • There’s different variants of the decision maker board that will bolt into these Kohlers. Some are plug and play and some require the light board at the front to be replaced.
  • Some variants look just like the factory board, some are modernized.