Short answer
Check five things before you pay: hours and service history (and telematics, if it has it), engine and hydraulics, undercarriage or tires with their wear parts, structure, and who's selling it with what parts backing. A used machine is bought as is, so you pay for its real condition, not a promise: inspect it in person or by video call and get any repair quoted separately before closing.
1. Real hours, history and telematics
The hour meter is the machine's odometer, but how those hours were used matters more. Ask for the maintenance history with dates and readings: if the services match the hours, the number is credible. If the machine has telematics — KOMTRAX on Komatsu, Machine IQ on Bobcat — the report shows real hours, idling, alerts and usage pattern.
Be wary of what doesn't add up: heavily worn pedals, seat, steps and pins with few hours suggest a replaced hour meter. A machine with many hours and up-to-date maintenance is usually a better buy than one with few hours and neglected service.
2. Engine: cold start, smoke and leaks
Ask for the machine to be cold when you arrive and watch it start. Smoke tells a lot: blue is burning oil; persistent white can be coolant or unburned fuel; heavy black, poor combustion or a restricted air intake. Listen for knocking and check whether a lot of vapor comes out of the crankcase breather (blow-by), a sign of internal wear.
On a large purchase, an engine and hydraulic oil analysis costs little and reveals wear metals you can't see.
- Cold start unaided and without persistent smoke.
- No knocking and no excessive blow-by.
- Normal oil and coolant levels and color.
- No leaks at the engine, pumps or hoses.
3. Hydraulic system: cycles, drift and rods
With the oil at working temperature, operate every function: boom, arm, bucket, swing and travel. Movements should be smooth, with no jerks or loss of power. Lift the bucket with a load, shut off and see whether the boom drops by itself: that drift points to worn cylinder seals or valves. Check the rods — scored or rusted rods damage seals — and look for oil on hoses, fittings and in the pump compartment.
4. Undercarriage, tires and wear parts
On a tracked machine, the undercarriage — chains, bushings, rollers, idlers and sprockets — is among the most expensive repairs. Look at the sprocket teeth (if they're pointed or hooked, wear is advanced), link play, rollers that don't turn and track tension. If you can, ask for a wear measurement.
On loaders and skid-steers check the tires; on all of them, the GET: teeth, cutting edges and shrouds. They're consumables, but replacing them all at once adds up: discount it from the price.
5. Structure, pins and cab
Walk the frame, boom, arm and bucket looking for cracks, recent welds or mismatched paint: they reveal repairs from hard impacts, and a compromised structure is hard to fix properly. Move the implements to feel play in pins and bushings; a lot of play means workshop time. In the cab, test instruments, controls, lights, air conditioning and the condition of the protective structure (ROPS/FOPS).
6. Provenance, paperwork and backing
A used machine from a seller with a workshop, history and parts availability is worth more than the same model with no history. Before paying, confirm the seller is the owner, that the machine has no liens and that its import is in order. And ask what decides the cost of the coming years: are there parts for that model in your country, and who services it? The lowest price stops being the lowest the day it breaks down and there's no part.
| Criterion | Dealer with workshop | Private seller |
|---|---|---|
| Inspection | In the workshop | On your own |
| History | Workshop records | Depends on owner |
| Parts and service | In-country | On your own |
| Financing | Subject to approval | On your own |
| Sale terms | As is | As is |
How Constru Usados works
Constru Usados is the group's used-machinery inventory. Units are inspected in the workshop and sold as is: the price reflects their current condition. You inspect the unit before buying, at the yard or by video call, and if you want repairs or maintenance before delivery they're quoted separately and reviewed in detail with you before closing.
The inventory rotates. It has included, for example, Komatsu D155AX-6 dozers in Nicaragua, a Komatsu PC200-10M0 excavator from the RentaCentro fleet in El Salvador and units expressly marked as not operational, sold for repair or parts. Within the unit's country VAT is added; to another country it's invoiced as an export.
- Tell us what you need: Type, brand, budget
- Inspected options: In your country and region
- Inspect it: At the yard or by video call
- Repairs, separately: Only if you quote them
- Close and delivery: As is
Where to buy used machinery in Central America
The inventory is at /usados, with real photos, hours and country for each unit; if what you need isn't there, set an alert and we'll let you know when it comes in. Units are in El Salvador, Guatemala, Nicaragua and Panama, and are also sold to other Latin American countries. Within the group's countries you get genuine parts, workshop or on-site service and financing subject to approval, all quoted separately from the unit; outside the group the sale is cash.
Selling or trading in your machine? List it at /usados/vender or put it toward new equipment with the trade-in plan (/trade-in).
Summary: what to choose
| If… | Then… |
|---|---|
| The hour meter and the history don't match | Ask for telematics or walk away |
| Persistent smoke or blow-by on a cold start | Oil analysis and diagnosis before making an offer |
| The boom drops by itself under load | Get seals and valves quoted and discount it |
| Hooked sprocket or seized rollers | Get the undercarriage quoted before closing |
| No parts for the model in your country | Look for another unit |
| You want repairs before delivery | Get them quoted separately and in writing |
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Topic: Used machinery
Which country is your project in?
Common mistakes
Buying from photos
Without seeing it cold-start and run every function, you're buying blind. If you can't go, ask for a video call.
Trusting only the hour meter
Service history and visible wear say more than the number.
Not discounting undercarriage and GET
Worn tracks, rollers, teeth and edges are money you'll spend soon.
Assuming it comes repaired
Used equipment is sold as is. Whatever you want fixed, get it quoted separately and in writing before closing.
Paying without checking paperwork
Confirm ownership, that there are no liens and that the import is in order.
Frequently asked questions
How many hours are too many for a used excavator?
There's no single number: it depends on the machine type, the application and, above all, maintenance. An excavator with many hours and documented service can run for years; one with few hours and neglected service can be trouble. History says more than the hour meter.
Is an oil analysis worth it before buying?
On a large purchase, yes. It costs little and detects wear metals in the engine and hydraulics that you can't see from outside. It's the machine's X-ray before you pay.
Does used machinery come with a warranty?
No. At Constru Usados equipment is sold as is: it's inspected, the price reflects its current condition and you can check it before buying. Repairs or maintenance before delivery are quoted separately.
Can I inspect the machine before buying it?
Yes: at the yard where the unit is or by video call. Ask to see it cold-start and run all its functions.
Can used machinery be financed?
Yes, in El Salvador, Guatemala, Nicaragua and Panama, subject to the partner bank's approval; financing is quoted separately from the unit. Outside the group's countries the sale is cash.
Where can I buy used heavy machinery in Guatemala, El Salvador, Nicaragua or Panama?
At Grupo ConstruMarket's Constru Usados (/usados), with units in all four countries and sales across Latin America. The inventory rotates: if you don't see what you need, set an alert.
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