Buyer's guide
Most used-tractor regret comes from things you could have found in twenty minutes with a flashlight and a willingness to get on the ground. Here's the order to work through.
Ask the seller to leave the tractor cold for your visit. A cold start tells you about hard starting, blow-by smoke and battery condition — all of which disappear once the engine has been idling for twenty minutes.
Watch the exhaust on start-up. A puff that clears is normal; steady blue smoke suggests oil burning, white smoke can mean coolant, and heavy black smoke points at fuel or air problems.
Read the hour meter, then see whether the rest of the machine agrees with it. Worn pedal pads, a polished seat, a rounded steering wheel and a beat-up floor on a low-hour tractor is a mismatch worth asking about.
Hours matter less than how the hours were put on. Loader work, heavy tillage and constant PTO load wear a machine faster than road and mowing hours.
Get on the ground. Check the front axle and steering cylinders, the engine oil pan, the rear axle seals behind the wheels, the loader cylinders and every hydraulic hose end.
Wet, dirt-caked film is an active leak. A freshly pressure-washed underside on an otherwise dirty tractor usually means someone cleaned up evidence — come back a week later and look again.
Cycle the loader all the way up and hold it. Cycle each remote. Watch for slow lift, jerky travel or a cylinder that drifts down while you sit there.
Lift something heavy — a full bucket or a mounted implement — and hold it. Hydraulics that feel fine empty will show weakness under real load.
Engage the PTO at low idle and listen for chatter or a clutch that won't hold. Raise and lower the three-point through its full travel and check that it holds position and that the draft controls respond.
Bring an implement if you can. A PTO that spins free but stalls under a mower or baler is a costly surprise.
Tires are one of the biggest hidden costs on a used tractor. Check tread depth, sidewall cracking, weathering and whether the rears are loaded with fluid. Uneven wear on the fronts can point to alignment or a bent spindle.
Look at rim rust, especially on fluid-filled tires, and check that lug nuts and wheel wedges are tight and not repeatedly re-torqued.
Shift through every gear and range, forward and reverse. On a hydrostatic or power-shift, feel for hesitation, slipping or a harsh engagement.
Test brakes individually and together, and check the parking brake on a slope. Grabby, uneven or long-travel brakes are a repair you'll be paying for.
Run every light, the wiper, the horn, the seat switch, the gauges and the A/C and heat if it has a cab. Check for spliced-in wiring and taped harnesses — a sign of chronic gremlins.
Confirm the ROPS or cab structure is intact and unmodified, and that the seat belt works. Never buy a tractor with a cut-off or bypassed safety interlock.
Request service records, the manual, and any dealer invoices for major repairs. Ask directly: what has been replaced, what leaks, what does it need next?
Look up the serial number to confirm the model year matches the seller's claim. Ask whether there's a lien on the machine and get a bill of sale that says the seller owns it free and clear.
Drive it on dirt and on hard ground, uphill and down. Load the engine. Turn lock to lock both directions. Listen for whines and knocks with the cab door open.
If you're spending real money and you're not confident, pay a diesel mechanic for a pre-purchase inspection. It costs a fraction of one hydraulic pump.
This checklist is general guidance, not a substitute for a professional pre-purchase inspection by a qualified mechanic.