with A/C, before engine #251240, except Fleetwood (Series 75) ****CUSTOMER MUST SUPPLY A DONOR HARNESS... see morewith A/C, before engine #251240, except Fleetwood (Series 75) ****CUSTOMER MUST SUPPLY A DONOR HARNESS WITH A USABLE FUSEBLOCK & BULKHEAD CONNECTOR. PHONE-IN ORDER ONLY; PLEASE DO NOT ORDER THIS ITEM ONLINE.****