A used concrete mixer truck has two working systems to evaluate: the road chassis and the mixer. A truck can have acceptable mileage while the drum, fins, rollers, hydraulic drive or chute system shows years of hard batch-to-jobsite cycling.
Ready mixed concrete delivery vehicles are maintained and inspected as production-and-delivery equipment, not just highway trucks. NRMCA’s plant and truck certification program includes recurring delivery-vehicle certification, while chassis manufacturers design mixer applications around PTO, frame, axle and jobsite demands. A buyer should inspect both sides of the machine.
1. Confirm the exact truck and mixer configuration
Record the VIN, model year, mileage, engine hours if available, axle configuration, GVWR, engine, transmission, mixer manufacturer, drum size and mixer drive type. Note any drum-hour or revolution counter if fitted and confirm what chute extensions, controls and accessories are included.
Ask for fleet maintenance records, mixer-service history, engine and emissions repairs, transmission work and any drum, gearbox, hydraulic-pump or roller replacement.
2. Inspect the drum shell and interior condition
Look for dents, cracking, patches, heavy rust and concrete buildup on the drum exterior. Interior inspection should be performed only under the owner’s lockout and safe-entry procedures by qualified personnel. When safe access and records permit, evaluate fin condition, interior buildup and evidence of shell wear.
A clean exterior does not prove the interior is healthy. Concrete buildup, worn fins and previous repairs can change usable capacity and mixing performance.
3. Check the drum rollers, track and support structure
Inspect rollers, bearings, mounting brackets and the drum track for unusual wear, alignment problems or leakage. Watch the drum rotate slowly in both directions and listen for grinding, knocking or irregular movement.
4. Inspect the mixer drive system
Depending on design, check the hydraulic pump, motor, gearbox, hoses, reservoir and cooler as applicable. Look for leakage, overheated oil, damaged hoses and signs of contamination. Verify that speed control and forward/reverse drum operation respond correctly.
5. Check PTO engagement and controls
Engage the mixer system according to the manufacturer’s procedure and verify PTO operation, cab controls and rear controls. Watch for delayed engagement, abnormal vibration or warning messages. Confirm emergency-stop and control functions where equipped.
6. Inspect the water system
Check the water tank, mounts, valves, hoses, meter or gauge and washdown equipment. Look for freeze damage, leakage and improvised repairs. Make sure the system can be filled and discharged as intended.
7. Inspect chutes and rear structure
Check the main chute, fold-over or extension chutes, pivots, locks, supports and hydraulic chute controls where equipped. Look for worn hinge points, cracked welds and heavy concrete buildup that interferes with movement.
8. Inspect the chassis like a vocational truck
Check frame rails, suspension, tires, wheels, brakes, steering, driveshafts and rear axles. Mixer trucks operate with high cyclic loads and frequent stop-start use, so chassis condition matters even when annual mileage is relatively low. Start cold when possible and review engine, transmission and emissions-system fault history.
9. Review certification and inspection records
If the truck has been part of an NRMCA-certified fleet or another documented inspection program, review current and prior records rather than relying on a decal alone. Certification status does not replace a pre-purchase mechanical inspection, but documentation can help establish maintenance history.
Used mixer truck scorecard
| Area | Strong | Investigate | Concern |
|---|---|---|---|
| Drum shell / internal condition | □ | □ | □ |
| Rollers / track / support | □ | □ | □ |
| Mixer drive / PTO | □ | □ | □ |
| Water system / chutes | □ | □ | □ |
| Frame / suspension / brakes | □ | □ | □ |
| Engine / transmission | □ | □ | □ |
| Fleet / inspection records | □ | □ | □ |
The takeaway
Buy a used mixer truck based on the combined condition of the chassis and mixer. Drum wear, mixer-drive health and documented fleet maintenance can matter just as much as mileage. A qualified truck and mixer inspection is worth considering before a high-value purchase.
Related BigEquipCo guides: Volumetric Mixer vs. Drum Mixer and Heavy Equipment Total Cost of Ownership.
