2008 Neptune by Holiday Rambler. Quad Slide. Roadmaster Raised Rail Chassis. 38,000 Original Miles. Cummins (16 Series) 6.7 Liter Turbo-charged Cummins 340HP with Allison 6 Speed World Transmission. Leather Seating with 2 Forward Guest Sleeping Options and Rear Walk-around Queen Bedroom. Washer/Dryer. (3) Camera Back-up Camera System. 8,000 Wat Onan Diesel Generator. Hydraulic Leveling System. Heated Basement with Side-Swing Storage Doors. 2,500 Watt Inverter. Includes new Floor-coverings and New Electric Awning.