The Generac GTH990 engine line groups 2 variant designations. Parts and fitment are pooled here so a cross-reference found on one variant surfaces for the whole family.
| Part # | Description | Category |
|---|---|---|
| 0D9723 | Engine Air Filter | air_filter |
| 0D9723S | ELEMENT AIR FILTER 0D9723S Replaces 0D9723 | air_filter |
| 0D6313 | FILTER, FUEL | fuel_filter |
| 070185B | FILTER, OIL BLACK 75mm LONG | oil_filter |
| 086516 | VALVE, EXHAUST | other_service |
| 0C2229 | VALVE, INTAKE | other_service |
| GTH990 | GTH990 | other_service |
| 0E7585 | SPARK PLUG | spark_plug |
Parts cataloged across all variants of this engine family — verify the exact part fits your specific variant and serial number before ordering.