Demco Autoslide 18K Sliding 5th Wheel Hitch | UMS or Ultra Mount

Corner a short-bed truck without leaving the seat. The Demco 18K Autoslide moves rearward on its own as you turn — rack-and-pinion gears give up to 14" of travel with nothing to unpin — then returns when you straighten out. The wrap-around jaw and locking bar hold the king pin tight, the double-pivot head with polyurethane bumpers hooks up on uneven ground and tows quietly, and the low-profile design is lighter to lift and easy to service.

Options

• 8550024 — 18K Autoslide, UMS under-bed mount, 4-way double-pivot head
• 8550060 — 18K Autoslide Ultra, UMS under-bed mount
• 8550061 — 18K Autoslide Ultra, UMS under-bed mount

⚠️ Mounting System & Freight

Each part number pairs the hitch with a specific mounting system (industry-standard rails, Ultra above-bed, or UMS under-bed). The base rails or frame brackets for your truck are sold separately unless noted. Confirm the part number against Demco's application guide or send us your truck's year, make, model and bed length. Ships by truck freight.

Key Features

• 18,000 lb capacity
• Automatic rack-and-pinion slide — up to 14" of travel, no handle to pull
• Wrap-around jaw with locking bar
• No locking plate for standard pin boxes
• 3 vertical height adjustments
• Limited 5-year warranty
• Double-pivot head, polyurethane bumpers
• UMS mount leaves the bed clear when removed
• Made in USA

Specifications

• Brand: Demco
• Type: Sliding 5th Wheel Hitch
• Model: Autoslide 18K
• Options: 8550024; 8550060; 8550061
• Weight: 285–320 lb (freight)