The Inspection: What Actually Matters
Forget the paint. Shiny paint on a used machine is a warning sign, not a selling point — it often means a quick cosmetic refresh covering deferred maintenance. Here's what to actually check, in order of financial consequence:
1. Structural integrity. Walk the frame, boom, and stick looking for cracks, welds, and repairs. Factory welds are clean and consistent. Field repairs are lumpy and irregular. A cracked boom that's been welded is a $15,000–$30,000 liability. Bring a bright flashlight and look underneath — that's where cracks hide.
2. Hydraulic system. Check every cylinder for leaks, scoring, and drift. Operate each function through its full range and watch for hesitation, jerking, or uneven speed. Pull the hydraulic oil sample — milky oil means water contamination, dark burnt-smelling oil means overheating. A full hydraulic system rebuild runs $20,000–$40,000.
3. Engine. Cold-start the machine yourself. Blue smoke on startup that clears is usually valve seals ($3,000–$5,000). Persistent blue smoke is rings ($15,000–$25,000 for an in-frame rebuild). Black smoke under load can be normal; white smoke is coolant in the combustion chamber — walk away. Get an oil sample analyzed ($30 from any lab). It'll tell you about bearing wear, coolant leaks, and fuel dilution before they become catastrophic.
4. Undercarriage (tracked machines). Measure it. Don't eyeball it. A proper undercarriage gauge ($50 tool) gives you percentage remaining on pins, bushings, rollers, and idlers. As noted before: undercarriage replacement is $40,000–$70,000 on a dozer. The measurement takes ten minutes and is worth more than the rest of the inspection combined.
5. Electronics and emissions. On Tier 4 Final machines, check for active fault codes, DPF/DEF system condition, and sensor issues. Emissions system repairs are expensive ($5,000–$15,000) and require dealer-level diagnostics. A machine with chronic DEF faults is a money pit.
Pricing: What to Pay
The used market has rough but real benchmarks. As a percentage of new equipped price:
- 1–2 years, <2,000 hours: 70–80% of new. You're paying for near-new condition and remaining warranty.
- 3–5 years, 2,000–5,000 hours: 50–65% of new. The value zone for most buyers.
- 6–9 years, 5,000–8,000 hours: 35–50% of new. Condition-dependent; inspection is critical.
- 10+ years, 8,000+ hours: 20–35% of new. Buy the seller as much as the machine — maintenance records are everything.
Adjust for: brand premium (Cat and Komatsu hold 5–10% over second-tier brands), regional demand, attachment inclusion (a $15,000 hydraulic thumb included in the price changes the math), and maintenance documentation (complete dealer service records add 5–10% to value).
Red Flags: Walk Away
No maintenance records. In 2026, any serious operation tracks maintenance digitally. "We did it ourselves" without documentation means it didn't happen, or happened wrong.
Fresh paint on an older machine. Cosmetic refresh without mechanical refresh means the seller is selling appearance, not condition.
"Just needs..." Any sentence starting with "just needs" is a lie. "Just needs a sensor" means the seller couldn't figure out what's wrong. Budget 3x whatever they claim it needs.
Out-of-state, sight-unseen, great price. The classic scam structure. If the deal seems too good and you can't inspect, it's not a deal — it's a story.
Hour meter discrepancies. Check the meter against service records, ECM data (the engine computer doesn't lie), and wear patterns. A 4,000-hour machine with a worn-through seat, polished pedals, and new paint has more hours than the meter says.
Where to Buy
Dealers (OEM). Highest prices, but inspected, often warrantied, with financing. The premium (10–20% over private party) buys risk reduction. For first-time buyers or critical-use machines, worth it.
Auctions (Ritchie Bros., IronPlanet). True market pricing, no negotiation, but no recourse. Inspect before bidding — auction houses allow inspection days. The best deals go to buyers who did their homework; the worst deals go to everyone else.
Private party. Best prices, highest variance. Great machines from retiring contractors; terrible machines from flippers. Inspection is non-negotiable.
"Amateurs buy the machine. Professionals buy the maintenance history." The iron is interchangeable. The care it received is not.
The Bottom Line
Used equipment buying is a skill, not a gamble — for those who inspect properly and price against real benchmarks. The $500 inspection that reveals a $30,000 problem is the best money in the transaction. The buyers who lose money aren't unlucky. They're underprepared.
EquipmentPricing.com is available for acquisition — data-driven intelligence for equipment buyers.