Fifth wheel hitches
CURT Q20 fifth wheel hitch review
A fifth wheel hitch head is the part that actually grips the kingpin, and how completely it wraps that kingpin decides how much chuck a driver feels on every throttle change. A single jaw closes around one side of the kingpin. A dual jaw design closes around more of it.
The CURT Q20 is built on that dual jaw idea, at a 20,000 lb published rating that puts it above the entry hitches in this catalog and below the puck mounted heavyweights. This review works through what CURT actually publishes for it, the exact hardware it excludes, and when a different hitch fits the trailer or the pin box better.
On this page
- What is the CURT Q20, and what does CURT actually publish for it?
- How does the Q20 compare against a rails-included hitch, a lighter hitch and the bare rails themselves?
- What does CURT actually publish for the Q20?
- What is the catch with the Q20 fixed dual jaw head?
- What are the alternatives if the Q20 does not fit your pin box or your budget?
- What should you check before buying a Q20?
What is the CURT Q20, and what does CURT actually publish for it?
The Q20 uses a spherical axial bearing so the head can tilt in any direction, which CURT markets as the source of a quieter ride than a fixed pivot. A 3 position coupling indicator shows whether the hitch is coupled, uncoupled or ready to tow, and the whole unit operates from a single short throw handle that locks for security. CURT rates it at 20,000 lb gross trailer weight and 5,000 lb vertical load, tested to SAE J2638, and it fits industry standard base rails such as the CURT 16204 or the 16104, both sold separately.
How does the Q20 compare against a rails-included hitch, a lighter hitch and the bare rails themselves?
The Q20 published rating sits in the middle of the rail mounted category. What actually separates a shopping decision is as much about what ships in the box as the GTW figure.
| Published rating | CURT Q20 Fifth Wheel Hitch, 20,000 lb | CURT A16 Fifth Wheel Hitch with Rails, 16,000 lb | CURT E16 Fifth Wheel Hitch, 16,000 lb | CURT 16204 Universal Fifth Wheel Base Rails, 25,000 lb |
|---|---|---|---|---|
| Price | $599.99 | $776.95 | $405.99 | $124.95 |
| Gross trailer weight rating | 20,000 lb | 16,000 lb | 16,000 lb | 25,000 lb |
| Rails included | not published | Yes | not published | not published |
Every figure here is the manufacturer's own published rating. A blank is a figure the maker does not publish, and we leave it blank rather than estimating it. The rating stamped on the part you actually receive is what governs.
What does CURT actually publish for the Q20?
CURT rates the Q20 for a 20,000 lb gross trailer weight and 5,000 lb vertical load, tested to SAE J2638.
Published standard A published, traceable figure: a standards body, a federal regulation or a manufacturer specification states it.
| Published spec | CURT Q20 |
|---|---|
| Gross trailer weight rating | 20,000 lb |
| Vertical load rating | 5,000 lb |
| Head design | Dual jaw, spherical axial bearing |
| Coupling indicator | 3 position, coupled or uncoupled or ready to tow |
| Test standard | SAE J2638 |
| Rails included | No, sold separately |
| Pin box compatibility | Not compatible with articulating or turret style pin boxes |
A blank field is not a figure this table guesses at. Every row is a published CURT specification.
What is the catch with the Q20 fixed dual jaw head?
The Q20 listing states plainly that it is not compatible with articulating or turret style pin boxes, naming Rota-Flex and Sidewinder as examples. That is a real limitation for a reader who has already fitted, or plans to fit, one of those pivoting pin boxes to gain cab clearance on a short bed truck, since the fixed dual jaw head on the Q20 does not accommodate the extra motion those pin boxes are built to provide.
The second catch is the one every rail mounted hitch shares: the price on the hitch alone is not the price of an installed hitch. Rails and vehicle specific installation brackets are both separate purchases, and a bed with neither already in place needs all three line items priced before the total cost is known.
What are the alternatives if the Q20 does not fit your pin box or your budget?
A reader running an articulating or turret style pin box needs a different hitch entirely. The CURT E16 is explicitly compatible with kingpin extension boxes, including common pivoting pin boxes, which makes it the better match for that hardware even though its published rating is lower at 16,000 lb. A reader who wants the rails included in one purchase rather than sourced separately should compare the CURT A16 instead, at the same 16,000 lb rating as the E16. A truck with a factory puck system skips rails and brackets altogether with the CURT A20, the puck mounted hitch at the same 20,000 lb rating as the Q20.
What should you check before buying a Q20?
Confirm the trailer pin box is a fixed style rather than articulating or turret before ordering, since that compatibility gap is not something an adapter fixes. Price the rails and the vehicle specific brackets alongside the hitch itself using the puck versus rail comparison to decide which mounting style actually costs less installed. Once mounted, weigh the loaded trailer and check pin weight against the fifth wheel pin weight calculator and the pin weight chart, since that weight comes directly out of truck payload rather than out of the hitch rating.
How we chose
We did not test this hardware in person and we never claim to. Picks are researched from manufacturer specification sheets, published towing standards, and the recurring themes in verified owner reviews. Every pick is matched to a real gross trailer weight rating, a real tongue or pin weight rating, a real receiver size or a real load index rather than to a price bracket, and it is placed in the tier where its published capability actually belongs. We rejected the unbranded flood that dominates the search results in several of these categories, because a weight distribution hitch, a brake controller, a trailer tire and a set of safety chains are all parts whose failure puts a loose trailer on a public road. Where a figure is towing convention rather than a published standard we label it that way, and where a manufacturer does not publish a figure we leave it out instead of estimating it.
Sources
- CURT published specifications for the Q20, A16, E16 and 16204 base rails
- CURT published specifications for the A20 puck mounted hitch
Frequently asked questions
What is the published rating for the CURT Q20 fifth wheel hitch?
CURT rates the Q20 at 20,000 lb gross trailer weight and 5,000 lb vertical load, tested to SAE J2638. That is a hitch hardware rating rather than a statement about what any specific truck can carry, which depends on that vehicle own payload, GVWR and GCWR figures.
Does the CURT Q20 come with rails included?
No. The Q20 fits industry standard base rails such as the CURT 16104 or 16204, both purchased separately, plus a vehicle specific bracket kit for the exact truck. A reader who wants rails bundled with the hitch should compare the CURT A16 instead.
Can the CURT Q20 be used with a pivoting pin box?
No. CURT states the Q20 is not compatible with articulating or turret style pin boxes such as Rota-Flex or Sidewinder. A reader running one of those pin boxes needs a different hitch, such as the CURT E16, which is built to accept common pivoting pin boxes.
What does the coupling indicator on the Q20 actually show?
A 3 position indicator that shows whether the hitch is coupled, uncoupled, or ready to tow. It is a visual check rather than a substitute for physically confirming the kingpin is seated and the handle has locked before pulling away.
Is the CURT Q20 quieter than a single jaw fifth wheel hitch?
CURT markets the dual jaw design and spherical axial bearing as reducing noise and chuck compared to a fixed single jaw pivot, since more of the kingpin is wrapped and the head can tilt more freely. That is a design claim from the manufacturer rather than an independent measurement.
Does a 20,000 lb hitch rating mean my truck can tow a 20,000 lb trailer?
No. The 20,000 lb figure is what the hitch hardware itself is rated for. What a specific truck can carry depends on its own payload, GVWR, GCWR and axle ratings, printed on its door jamb sticker and owner manual, never on the hitch rating alone.
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Researched, not professional advice. This page is compiled from published standards, manufacturer towing guides and product specifications, and owner-review consensus, not hands-on testing. Figures described as a rule of thumb are towing convention rather than published standards, and they are labelled that way wherever they appear. Nothing here overrides your own ratings. Work your payload sum before your tow rating, because payload is the limit that actually binds on most half ton trucks and nearly every SUV. Load a conventional trailer to 10 to 15 percent tongue weight and a fifth wheel to 15 to 25 percent pin weight, and never lighter: a tail heavy trailer is what starts sway. Weigh the rig loaded rather than trusting a brochure dry weight. A weight distribution hitch and a set of air bags both restore ride height and control, and neither one raises a single rating. Trailer brakes are required by state law above a threshold that varies by state, and a breakaway battery that has quietly gone flat is the normal condition of most trailers on the road.