What to Check Before Buying a Used Truck

The engine is the most expensive component to repair or replace on a used truck. Start your inspection here.

• Check for unusual noises, knocking, rattling or excessive vibration at idle and under load.
• Look for oil leaks around the engine block, turbo, sump and rocker cover.
• Inspect the coolant for signs of oil contamination (milky appearance) or rust.
• Check the exhaust for blue smoke (burning oil) or white smoke (coolant leak).
• Verify service intervals — a well-maintained engine should have documented oil changes every 10,000–15,000 km.
• Ask about the timing belt or chain replacement history.

Transmission problems can be expensive. Test the gearbox thoroughly before committing.

• Test drive through all gears — listen for grinding, whining or difficulty engaging.
• Check clutch bite point and feel for slipping under acceleration.
• Inspect for oil leaks around the gearbox housing.
• Ask when the clutch was last replaced — clutches typically last 200,000–300,000 km depending on use.

The body condition affects payload capacity, safety and resale value. Rust and structural damage can be deal-breakers.

• Check the chassis rails for cracks, rust, bends or previous welding repairs.
• Inspect the load body for rust, rot, panel damage and structural integrity.
• Check dropside hinges and locking mechanisms — they must open and close properly.
• For box bodies, check for water ingress, door seals and lock condition.
• For refrigerated bodies, inspect the fridge unit, insulation panels and door gaskets.
• Check the cab for rust, accident damage, windscreen condition and door alignment.

Tyres and brakes are both safety-critical and a significant cost factor. Worn items give you negotiating room.

• Check tyre tread depth (minimum 1.6 mm legally, but 3 mm+ is preferable for a work truck).
• Look for uneven tyre wear — this indicates alignment, suspension or steering issues.
• Inspect tyre sidewalls for cracks, bulges or damage.
• Test brake pedal feel — spongy or low pedals suggest air in the system or worn pads.
• Check brake drums or discs for wear, scoring and cracks.
• Test the handbrake on an incline.
• Bounce each corner of the truck — excessive bouncing indicates worn shock absorbers.

Missing paperwork can delay registration and add unexpected costs. Always verify documentation before paying.

• Check the vehicle registration document (NATIS/ENatis) matches the vehicle details.
• Verify the chassis number and engine number match the registration documents.
• Ask for the previous COF (Certificate of Fitness) certificate and check the test date.
• Request service history records and any major repair invoices.
• Confirm whether the vehicle has any outstanding finance or traffic fines.
• Ask if the roadworthy certificate is included or needs to be obtained.

A COF-ready truck saves you time and money. COF (Certificate of Fitness) testing checks lights, brakes, tyres, emissions, steering and body condition.

• Confirm whether the truck is sold with a valid COF or roadworthy certificate.
• Check all lights are working — headlights, indicators, brake lights, reverse lights and reflectors.
• Verify the speedometer and odometer are functioning.
• Check the windscreen for cracks or chips in the driver’s line of sight.
• Ensure the horn, wipers and washers work properly.

See our COF-ready trucks guide for a detailed breakdown.

• Does the body type and payload match your work requirements?
• Is the mileage reasonable for the age and maintenance history?
• Are replacement parts and tyres readily available for this make and model?
• Have you taken the truck for a thorough test drive including highway and bumpy roads?
• Have you asked about warranty, cooling-off period or after-sale support?
• Have you confirmed viewing and inspection arrangements with the dealer?