Used Class 8 retail price hits $64,007 in September, up 11.5% YoY
Average retail price climbed to $64,007 from $57,383 a year earlier, though September marked a 1.9% dip from August's $65,234.
What did used Class 8 trucks cost in September 2026?
Used Class 8 retail prices averaged $64,007 in September, up 11.5% from $57,383 in September 2025, according to ACT Research. The month-over-month picture was softer: September's average fell 1.9% from August's $65,234.
The year-over-year gain reflects the same inventory squeeze that has pushed used truck prices higher since mid-2025. Fewer clean off-lease units and tighter dealer lots mean buyers pay more for the same truck. The sequential drop from August to September suggests some cooling, but the $64,007 average still sits well above last year's baseline.
What the $6,624 year-over-year jump means for replacement cycles
A $6,624 increase in average retail price year over year changes the math on when to replace aging equipment. Small fleets that budgeted $57,000 for a used tractor in 2025 now face an 11.5% premium for comparable units. That delta can push replacement decisions out another six months or force operators to accept higher-mileage inventory at the original budget.
The sequential decline from August to September offers limited relief. A 1.9% drop translates to roughly $1,200, not enough to offset the annual climb. Fleets shopping now are still paying $6,600 more than they did a year ago for the same model year and mileage bracket.
How September's dip compares to recent months
September's 1.9% month-over-month decline follows a pattern of tight inventory lifting prices earlier in 2026. August's $65,234 average marked a local peak. The September pullback suggests seasonal softness or a temporary increase in dealer inventory, but the year-over-year trend remains upward.
ACT Research's data shows retail sales losing momentum in September, though the report does not break out unit volume. Price alone does not tell the full story. If fewer trucks changed hands in September, the $64,007 average could reflect a shift in mix toward newer or lower-mileage units rather than broad market cooling.
What small fleets should watch in Q4 2026
The $64,007 September average sets a baseline for Q4 shopping. Fleets planning to buy before year-end should track whether the sequential decline continues or reverses. If October and November prices hold near $64,000, the market has found a new floor. If prices climb back toward $65,000, the August peak was not an outlier.
Inventory availability matters more than price alone. Tight dealer lots mean longer search times and fewer options to negotiate. Small fleets that can wait until early 2027 may see better selection as off-lease units from 2023 model-year orders hit the market. Those that need equipment now are paying the 11.5% premium with limited leverage.
The year-over-year price climb also affects trade-in values. Fleets selling older equipment into the used market can expect higher offers than a year ago, which offsets some of the replacement cost. The gap between what a 2019 tractor fetches today versus September 2025 has widened alongside retail prices, though trade-in gains typically lag retail increases by a quarter.
