View 9 Photos View 0 Videos Onan RS20000 Generator Newly Listed At auction Jun. 17 Onan RS20000 Generator, s/n C050762727, 4-cyl CNG Only, skid mtd (Hours Unknown)(Seller States: Runs) NOTE: This unit is being sold AS IS/WHERE IS via Timed Auction and is located in... ConditionUsedStock NumberZM309 MLS Number14415230CategoryGenerator Sets Last Updated6/10/2026 LocationMissoula, MT, US Listed ByJJ Kane Auctions Email Seller Save More Info