Key takeaways
| Factor | Where it points in 2026 |
|---|---|
| New lead time | 12 to 18 months on some heavy models; used is available now. |
| Price gap | Euro 6 added roughly 3 to 5 percent to new builds, widening the gap to used. |
| Used supply | Plentiful late-model stock entered the market through 2025 and 2026. |
| Used price | AUD 80,000 to 150,000 for well-kept heavy units aged four to seven years. |
| Running cost | New Euro 6 engines can be up to around 10 percent more fuel efficient. |
| Best fit | Used suits immediate need and lower entry cost; new suits long holds and high distance. |
The used versus new decision has shifted in 2026
For most of the last decade the new-versus-used prime mover question came down to budget. In 2026 three current conditions have changed the calculation: long new-build lead times, the Euro 6 price step on new trucks, and a deep pool of late-model used stock.
That combination has narrowed the case for waiting on a new build for operators who need capacity now. The right answer still depends on how long you hold the truck and how far it runs each year.
Used versus new: side by side
| Factor | Used prime mover | New prime mover |
|---|---|---|
| Availability | Now | 12 to 18 months on some models |
| Entry price | AUD 80,000 to 150,000 | Higher, plus the Euro 6 step |
| Fuel efficiency | Baseline | Up to around 10 percent better |
| Warranty | Limited or none | Full factory warranty |
| Downtime risk | Higher; depends on history | Lower early in life |
| Resale retention | Softening on pre-Euro 6 | Stronger medium-term |
Choose used when you need capacity now and want the lowest entry cost: late-model stock is available immediately and stays compliant for its full working life.
Choose new when you run high annual distance and hold trucks long-term: better fuel economy, full warranty and stronger resale can outweigh the higher price and the wait over a long holding period.
What drives the total cost either way
| Cost factor | Typical driver | Buyer consideration |
|---|---|---|
| Fuel | Largest running cost | High annual distance favours a newer, more efficient engine. |
| Maintenance | Rises with age and hours | Used units need a maintenance buffer; service history reduces the unknown. |
| Downtime | Lost revenue per day off road | For single-truck operators, reliability can matter more than entry price. |
| Resale | Value at exit | Mid-cycle resellers benefit from a Euro 6 unit's stronger retention. |
Australian compliance points
- New prime movers supplied from 1 November 2025 must meet ADR 80/04 (Euro 6); registered used trucks are exempt and need no retrofit.
- A used truck must carry a current roadworthy or safety inspection for your state or territory.
- Heavy vehicle operation is governed by the Heavy Vehicle National Law in participating jurisdictions.
- A heavy combination or multi-combination licence applies depending on the trailer setup.
- Confirm the emissions standard on the compliance plate so resale expectations are clear.
What to ask before you request quotes
| Factor | What to ask the supplier |
|---|---|
| Lead time | If new, what is the realistic build and delivery time to my state? |
| Emissions standard | If used, is the unit ADR 80/03 or 80/04? |
| Service history | For used, is there a full logbook and known driveline condition? |
| Warranty | What warranty or support is included, new or used? |
| Fuel figures | What real-world fuel use should I expect for my route profile? |
| Spec match | Does power and axle configuration suit my GCM and terrain? |
| Inspection | For used, can I arrange an independent pre-purchase inspection? |
| Support network | Where is the nearest service agent for this brand? |
Once you know your holding period and annual distance, get quotes for prime movers across both used and new so you can compare on total cost, not entry price.
Frequently asked questions
Is it better to buy used or new in 2026?
Used suits operators who need capacity now and want the lowest entry cost, since late-model stock is available immediately while new builds can be 12 to 18 months away. New suits high-distance, long-hold operations where better fuel economy, warranty and resale offset the higher price.
How long is the wait for a new prime mover?
Lead times of 12 to 18 months apply to certain heavy models in 2026, though it varies by brand and specification. A used unit avoids the wait entirely, which is a major reason buyers are looking at late-model stock this year.
Does a new truck's fuel saving justify the price?
Euro 6 engines can be up to around 10 percent more fuel efficient, which adds up fastest at high annual distance. For lower-distance operations the saving is smaller and may not offset the higher entry price and longer wait.
What does a used prime mover cost compared with new?
Well-kept used heavy units aged four to seven years sit around AUD 80,000 to 150,000, while new builds cost considerably more and now carry the Euro 6 price step. The gap has widened in 2026, strengthening the used case for budget-led buyers.
Is downtime a bigger risk with a used truck?
A used truck carries more reliability uncertainty, which weighs heaviest on single-truck operators who cannot absorb days off the road. A full service history and an independent pre-purchase inspection are the best ways to reduce that risk.
What matters most
- Used wins on availability and entry cost; new wins on efficiency, warranty and resale.
- New lead times of 12 to 18 months are pushing buyers toward late-model used stock.
- High annual distance and long holds favour a new Euro 6 unit.
- Compare on total cost over your holding period, not entry price alone.
- For used, service history and a pre-purchase inspection decide the real value.
Get and compare prime mover quotes now from verified Australian suppliers across both used and new stock.
