Buying a Used Excavator: What to Check Before You Agree on a Price
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Most excavators change hands used, and the good ones are worth every dollar. The trouble is that the two machines sitting side by side with the same year and the same hours can be twenty thousand dollars apart in what they'll cost you over the next two seasons, and nothing on the spec sheet tells you which is which. Here's what to look at, in the order that matters, before you agree on a number.
Start underneath
The undercarriage is the first thing to look at and the last thing most buyers do. Track chains stretch, rollers and idlers wear down, sprocket teeth hook and thin. On a mid-size machine a full undercarriage is a five-figure repair, and a machine that needs one next season has that cost baked into its price whether the seller admits it or not.
Walk both sides. Look at the sprocket teeth for hooking, run a hand along the rollers for flat spots, and check the track tension. A dealer or an inspector can give you a percent-worn figure per component; on a machine you're serious about, that number is worth paying for.
Rock the house
Raise the boom, put the bucket on the ground, and have someone swing the house a few degrees each way while you watch and listen at the slew ring. A clunk or visible play means the swing bearing is worn, and that is one of the most expensive single repairs on the machine. It's also the one a quick walk-around never catches.
While you're there, check the swing motor for leaks and listen for grinding through a full rotation in each direction.
Hydraulics under load, not at idle
Every cylinder rod should be clean and unscored; a pitted or scratched rod chews seals and will weep before long. Look for weeping at the seals and at every hose fitting, and check hose condition for cracking and chafe.
Then work the machine. Cycle times under load tell you more about the pump than any leak does: a boom that lifts slowly, or a bucket that drifts down when the machine sits with the boom raised, points to worn pumps or leaking cylinders. Ask to dig with it, not just move it.
Pins, bushings and the bucket
Grab the bucket and rock it. Play at the bucket pins, the stick and the boom foot means the machine was run hard or run dry of grease, and it usually means the rest of the machine was treated the same way. Pins and bushings are not the most expensive fix on the list, but they're the most reliable tell.
Look at the bucket itself: the cutting edge, the teeth, the wear on the side plates. A bucket that's been welded up repeatedly has done a lot of work.
Hours, meters and records
Hour meters get replaced, and that isn't necessarily a red flag if the history is documented. What you want is agreement between the meter, the telematics history if the machine has it, and the service records. A machine with 4,000 hours and a folder of records is a better buy than one with 2,500 and a shrug.
On a Tier 4 machine, ask specifically about the emissions system: DEF use, regen history, any codes. A cold start on the day you look tells you plenty about the engine; blow-by from the breather tells you more.
What conveys
Get in writing exactly what comes with the machine: the buckets, the thumb, the coupler, the breaker, any grade-control hardware. Attachments are real money and they can be financed with the machine as one deal, but only if they're on the invoice.
How the inspection changes the financing
This is the part buyers miss. On construction iron there's no blanket model-year cutoff at Avanti. Hours, undercarriage and condition set the term, along with the amount financed against the machine's value. A lower-hour machine with a documented history can carry the full 72 months; a high-hour unit is matched to a shorter term so the payment stays ahead of the wear. A written inspection report strengthens the file more than any single number on the listing.
It works the same whether the excavator comes from a dealer, an auction or another contractor. On a private sale, the machine and the seller get verified, the title and any lien get handled, and the seller is paid directly, so you don't front the cash or manage the paperwork. Get pre-qualified before you go look; knowing your number is the best negotiating position there is.
Financing covered in this article
- Excavator financingMini to large excavators, attachments included — hours and condition set the term, not a cutoff.
- Private party equipment financingBuy from a private seller, not just a dealer — same terms, title handled.
- Construction equipment financingExcavators, dozers, loaders and skid steers, new or used.
Common questions
What should I check on a used excavator before buying?
The undercarriage (chain stretch, roller and sprocket wear), slew-ring play, hydraulic cylinder rods and seals, cycle times under load, pin and bushing play at the bucket and boom, the hour meter against service records, and on a Tier 4 machine the emissions-system history. Confirm in writing which attachments convey.
Is there an hours cutoff for financing a used excavator?
Not a blanket one. Hours, undercarriage and condition set the term, along with the amount financed. A lower-hour machine with records can carry the full 72 months; a high-hour unit is matched to a shorter term. An inspection report strengthens any used-machine file.
Can attachments be financed with a used excavator?
Yes. Buckets, a thumb, a coupler, a breaker or a tiltrotator bought with the machine are financed as one deal with one payment, as long as they appear on the invoice or bill of sale.
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