Unless noted, these parts are for the Popular Onan MicroQuite KY, Spec J & after

Operators Manual - for the 4K Onan Gas, 3600 Watt LP - Spec KY - part # 981-0147

Ignition Coil - 4K Onan MircoQuite - Onan # part # 0166-0866

Spark Plug - 4K Onan MicroQuite - Champion RN14YC, Onan # 167-0275
Spark Plug - 2.8 K Onan Microlite - Champion RS17YX

Carburetor, Gas - MicroQuite - from Camping World - SKU # 25009
Carburetor, Gas - MicroQuite - Onan # 0146-0785

Air Filter - MicroQuite - Onan # 140-3280

Fuel Filter, Secondary - NAPA # 3031 > CarQuest # 86031
(this is just a regular fuel filter between the fuel tank & the generator)

Breaker Switch at Generator, MicroQuite - Onan # 0320-1323

Fuel Filter on Engine at Pump, MicroQuite - Onan # 149-2457

Fuel Pump at Engine, MicroQuite (also used for the Secondary Lift Pump) - Onan # A029F889 or AO29F887
( this is the newest Onan Pump and replaces all older pumps, Example Onan # 0149-2311-01 or 02)

Main Power Computor Board - Onan # 327-1413 ( replaces 300-5046 )
( see photo - FAQ > Generators > Photos, Onan Troubleshooting > 4000 KY Gas............ )