Demco
31K UMS Series
31K lbs
Max Trailer Weight
4.5K lbs
Max Pin Weight
Our Assessment
Stupid Simple Score
DIY or Pro?
Installation
Availability
Where to Buy
Requires
OE Puck System
Expert Take
Another 31K UMS puck-mount config for max-tow trucks pulling the biggest fifth wheels. Fixed head, lever out when you need the bed back, and priced fairly for the capability, though ride and build sit a notch under the top-shelf names.
About This Product
The Demco UMS 31K is built for maximum weight. Thirty-one thousand pounds of towing capacity puts this at the top of the fifth wheel hitch market. If your trailer is genuinely massive - large toy haulers, commercial applications - this handles it without breaking a sweat.
UMS means Universal Mounting System - works with multiple truck brands and mounting configurations. For trucks with factory pucks, it drops in like other puck hitches. The flexibility is useful if you change trucks or need to move the hitch around.
At 31K capacity, everything is beefed up. Heavier construction, larger components, designed for continuous heavy use. The tradeoff is more weight and higher cost, but if you need the capacity, you need it.
Demco makes this straightforward - secure jaw grip, height adjustment, solid construction. No unnecessary complexity to maintain.
Make sure you actually need 31K before buying this. Most fifth wheels are well under 20K. But for heavy applications where capacity matters, this delivers.
Compatibility
Fits These Trucks
RAM
| Model | Years | Bed Length | Bed Prep | |
|---|---|---|---|---|
| 2500 | 2013 - Present | Long Bed | Puck System | All options → |
| 3500 | 2013 - Present | Long Bed | Puck System | All options → |
Compare Options
Related Products
B&W
25K Companion
Weight Rating
25,000 lbs
Head Type
fixed
Mount
OE Fifth Wheel
MSRP
$1,399
PullRite
24K SuperGlide
The 24K SuperGlide is the gold standard for short-bed trucks, automatically sliding the hitch back when you turn so the trailer clears the cab without you touching a thing. It drops into factory pucks and tows incredibly smooth; the auto-slide mechanism is the trade you make on a slightly fussier install.
Weight Rating
24,000 lbs
Head Type
auto sliding
Mount
OE Fifth Wheel
MSRP
$2,505
B&W
20K Companion Slider
A 20K sliding Companion aimed at short-bed owners who need extra turning clearance between cab and trailer. The slider adds a step at install and a manual move before sharp turns, but the head still tows cushioned and quiet.
Weight Rating
20,000 lbs
Head Type
sliding
Mount
OE Fifth Wheel
MSRP
$1,699
PullRite
25K OEX Super 5th
A 25K OEX Super 5th fixed head for puck-equipped trucks, delivering the full-strength build and minimal chucking PullRite is known for. Great capability and a tidy puck install, but it sits at the premium end of the price range.
Weight Rating
25,000 lbs
Head Type
fixed
Mount
OE Fifth Wheel
MSRP
$1,648
Got Questions?
Frequently Asked Questions
The 31K UMS Series is compatible with RAM trucks from 2013 to 2026. Use the fitment table above for the complete list of compatible year, model, and bed configurations.
The 31K UMS Series is rated for 31,000 lbs gross trailer weight (GTW) and 4,500 lbs vertical trailer weight (VTW — the pin weight your truck carries). Always verify your truck's tow rating before purchasing.
This hitch is considered DIY-friendly — most owners can install it with basic tools.
The 31K UMS Series is available from Demco directly. Use the "Where to Buy" buttons above for current pricing and availability.
The 31K UMS Series has a fixed head — it does not slide. This is the most common setup and works great for standard-length beds. If you have a short bed, verify clearance before purchasing.
This is the benchmark 25K puck-mount Companion that every other fifth wheel gets measured against. It drops into factory pucks, pops out with a lever when you want your bed back, and tows dead quiet thanks to the cushioned, fully-articulating head.