We buy dump trailers
Sell Your Dump Trailer
End, side and belly dumps — priced on configuration, body material, floor condition and hoist.
- Written offers
- Transport arranged
- Running or not
- California
On this page
MachineryBarn buys used dump trailers — end dumps, side dumps, belly dumps and bottom dumps, plus bumper-pull and gooseneck units. The configuration is the first question, because each type serves different work and has a different buyer: end dumps are general purpose, side dumps unload fastest and safest, and belly dumps windrow material on the move for road building. After that it is the same story as any dump body — floor condition, hoist function and frame integrity.
What counts as a dump trailer
A dump trailer carries loose material and discharges it hydraulically without the truck having a dump body of its own. End dumps tip rearward, side dumps roll the body to one side, and belly or bottom dumps release material through gates in the floor while moving. Highway units run behind a tractor; smaller bumper-pull and gooseneck trailers run behind pickups and are a separate market entirely.
Highway trailers are described by body length and capacity in cubic yards, and by axle count. Pull-behind trailers are described by gross weight rating — the common sizes for contractors and landscapers run from around seven thousand pounds up to gooseneck units in the heavier classes. The two markets barely overlap, so say which you have.
Where these machines usually come from
- Aggregate, sand and gravel haul
- Asphalt and road base delivery
- Excavation spoil and demolition debris removal
- Agricultural haul
- Landscaping and residential contracting, on the smaller pull-behind units
Dump Trailers we buy
Configuration changes who the next buyer is, so it changes the offer. These are the variants worth naming when you describe your machine.
- End dump
- Tips rearward. The general-purpose configuration and the widest resale market. Requires overhead clearance and level ground to unload safely.
- Side dump
- Rolls the body to one side. Fastest unloading and far less prone to tipping than an end dump, which is why they have gained ground in aggregate work.
- Belly / bottom dump
- Discharges through floor gates while moving, laying an even windrow. Purpose-built for road construction and a specialist buyer pool.
- Bumper-pull dump trailer
- Pickup-towable, common with landscapers and small contractors. Completely different market from highway trailers and generally easier to sell.
- Gooseneck dump trailer
- Heavier pull-behind unit on a gooseneck hitch. Bridges the gap between contractor trailers and highway equipment.
What determines a used dump trailer's value
Roughly in order of how much each one moves the number.
- 1
Body material and floor condition
Steel bodies wear and dent; aluminium bodies are lighter, giving more legal payload, but they damage more readily. Either way, floor thinning, patches and cracked welds at the floor-to-sidewall joint are the most common condition problems.
How to check it: Look at the floor from inside for thin spots and prior patches, and check the sidewall welds and front bulkhead from outside.
- 2
Hoist and cylinder function
A hoist that will not raise a loaded body, drifts down, or twists the frame is a functional failure. On side dumps, the roll cylinders and pivot points do the same job and are checked the same way.
How to check it: Raise the empty body fully, hold it, and watch for drift. Look for leaks at the cylinder base and listen to the pump under load.
- 3
Configuration
End, side and belly dumps sell to different buyers doing different work. Side dumps generally command strong interest because of the safety and speed advantage; belly dumps are specialist.
- 4
Frame and subframe integrity
Repeated dumping cycles stress the frame, particularly at the hinge and hoist mounting points. Cracks there are structural and are the first thing an experienced buyer looks for.
How to check it: Inspect around the rear hinge points and the hoist mount, looking for cracks and prior weld repair.
- 5
Suspension, tyres and brakes
Highway dump trailers run a lot of rubber and dump service is hard on brakes. On pull-behind trailers, axle and brake condition matter just as much at a smaller scale.
- 6
Tarp system
A working tarp system is effectively required for legal loaded operation on the highway. Torn tarps, seized rollers and missing arms are cheap individually and add up.
- 7
Gates, hinges and latches
The tailgate on an end dump and the discharge gates on a belly dump are wear points that see every load. Bent gates, worn hinges and failed air cylinders are common.
- 8
Inspection and title status
Highway trailers need current inspection to work immediately. Pull-behind trailers still need a title in California and a lapsed registration is worth flagging.
How usage is measured
Age, condition and duty. Dump trailers have no meter, so what they hauled tells the story: rock and demolition debris beat a body far harder than topsoil or asphalt, and it shows in the floor thickness and the sidewall welds.
What gets inspected on a dump trailer
Knowing what a buyer looks at lets you describe the machine accurately the first time, which avoids the offer changing later.
Body and floor
Floor thickness and patches, sidewall welds, front bulkhead, and body straightness along its length.
Hoist or roll system
Cylinder condition and drift, pump function, hydraulic lines, and whether the body raises or rolls evenly.
Frame and hinge points
Cracks at the rear hinge and hoist mount, subframe condition, and prior weld repair.
Gates and tarp
Tailgate straightness, hinge and latch wear, air cylinder function, tarp condition and roller operation.
Running gear
Suspension condition, tyres and brakes, wheel seals, axle alignment, and landing gear on highway units.
Hitch and coupling
Kingpin on highway trailers; coupler, safety chains and breakaway system on pull-behind units.
Wear items that dominate cost on this class
What we need to price your dump trailer
You do not need all of it to start. The more of it you have, the closer the first number is to the final one.
- Year, make, model and VIN
- Configuration — end, side, belly, bumper-pull or gooseneck
- Body material, length and capacity
- Floor condition, including any patches
- Whether the hoist raises a loaded body without drift
- Tarp system condition
- Axle count, tyre and brake condition
- Any frame cracks or prior repair at the hinge or hoist mount
- Current inspection and title status
- Whether it is roadworthy as it sits
Common situations
The circumstances that come up most often when someone sells a dump trailer, and what each one actually means for the sale.
The hoist will not lift a loaded body
Tell us before an offer. Whether it is the pump, cylinder seals or the hydraulics between them changes the repair substantially, and you do not need to know which. What matters is that we price it as a hoist problem rather than discovering it at collection.
The floor is thin or patched
Normal on a working dump trailer. Do not have it re-floored to sell — it is a substantial job and the cost does not come back. Describe the extent and let the offer reflect a known condition.
There are cracks around the hinge points
Disclose them. Hinge and hoist mount cracks are structural, they are exactly what a buyer inspects for, and undisclosed structural damage is what turns a firm offer into a re-cut one.
It is a pull-behind trailer with a lapsed registration
Very common and workable. Contractor dump trailers often sit unregistered between projects. Tell us the title situation up front — a title in hand makes it simple, and a missing one adds steps we can plan for.
You are selling the truck as well
Send them together. A matched tractor and dump trailer, or a pickup and a contractor trailer, are often easier to place as a set and simpler to collect.
Moving a dump trailer
Roadworthy highway trailers are hooked and towed. Pull-behind trailers go behind a pickup or on a deck-over depending on size and condition. A trailer with seized brakes, flat tyres or a body that will not stay down needs attention before it can move legally — worth telling us rather than leaving to the collection driver. Transport is arranged and paid for by us and is inside the offer.
Ownership and paperwork
Dump trailers are titled in California, highway and pull-behind alike, and transfer through the DMV with any lien recorded on the title. Contractor trailers in particular are often bought and sold informally over the years and titles go missing — raise it before an offer rather than at collection.
Attachments and extras
Tarp systems, body liners, spare tyres, ramps on smaller units, air gates, vibrators and any hitch equipment all count. On pull-behind trailers, note the hitch type and ball size — it is small detail that matters to the buyer.
Makes and model families we see most
We buy dump trailers from manufacturers beyond this list. These are the ones that come up most often, with the series a seller is likely to recognise from the machine.
| Manufacturer | Model families |
|---|---|
| MAC Trailer | Aluminium end dumps and side dumps |
| Ranco | End dump and bottom dump trailers |
| SmithCo | Side dump trailers |
| Trail King | End dumps, side dumps and bottom dumps |
| Load King | Dump trailer range |
| PJ Trailers | Bumper-pull and gooseneck contractor dumps |
| Big Tex | Contractor dump trailers |
| Diamond C | Heavy-duty pull-behind dumps |
Get a cash offer
Get an offer on your dump trailer
Tell us what you have and what shape it is in. We come back with a cash figure in writing.
- A written offer, not an estimate
- Transport arranged and priced into the offer
- Running or not, any make
Prefer to talk it through?
(916) 740-7755Get a Cash Offer
Any brand, any condition, any hours.
- Written offer
- Transport arranged
- No Spam
Where we buy dump trailers
We buy across California. Our published town-level coverage is concentrated in these counties.
