How Class 8 backlog-to-build ratios, fuel prices, and make-specific buyer pools shape used heavy-duty truck resale values. Updated monthly alongside ACT Research and FTR Associates reports.
TL;DR
Used Class 8 truck values track the OEM backlog-to-build ratio. Long backlogs (above 9 months) push fleets into the used market and lift resale prices; short backlogs (below 4 months) soften used values as new-truck incentives pull demand forward. Freightliner Cascadia and Kenworth T680 lead residuals across nearly every cycle.
How to read used Class 8 truck values
As of 2026-04-18, used Class 8 heavy-duty truck resale values are priced primarily against the OEM backlog-to-build ratio reported monthly by ACT Research and FTR Associates. When the ratio sits above roughly 9 months, new-truck supply is constrained, fleets shift demand to used equipment, and dealers pass premium pricing through to late-model sleepers. When the ratio drops below 4 months, OEMs push incentives on new builds, trade-in volume spikes, and used values soften across the board. Make-level resale character layers on top: Freightliner Cascadia and Kenworth T680 retain value fastest due to buyer-pool depth and parts/service density, Peterbilt 579 commands an owner-operator premium, Volvo VNL and Mack Anthem trade in narrower fleet-to-fleet pools, and International LT is still rebuilding residuals versus the MaxxForce legacy. Automated manual transmissions and emissions-current powertrains consistently lift residuals by 5–10%.
Used Class 8 asking prices by model & year
Typical asking-price range (the middle 50% of active dealer listings) by model and model year, computed from live listings on TruckRadar. These are asking prices, not sale prices. Model-years with too few priced listings, or dominated by a single dealer, are omitted rather than shown as an unreliable number. How we calculate this →
The single most predictive metric is the Class 8 order backlog expressed in months of current OEM build rate. Here's how each band typically translates to used-truck resale direction.
Backlog band
Market condition
Used value impact
Direction
Below 4 months
Short backlog, OEMs have open slots
Used values soften; dealer inventory days-on-lot rises
Falling
4–6 months
Balanced; modest OEM push into production
Stable residuals; buyers have leverage
Neutral
6–9 months
Tightening; fleets place forward orders
Used values firm; sellers gain pricing power
Firming
Above 9 months
Constrained; build slots sold out
Used premium inflates; late-model sleepers lead
Rising
Make-by-make resale tendencies
Every Class 8 nameplate has its own resale character. These tendencies are editorial, based on our read of ACT, J.D. Power, and auction-comp data from Ritchie Bros. and Sandhills.
Freightliner Cascadia
Deepest buyer pool, strongest aerodynamic-era resale. Evolution / DT12 AMT spec leads residuals. Parts & Detroit service density support retained value in every region.
Kenworth T680
PACCAR MX-13 with Eaton Endurant AMT holds value strongly. Premium cab perception and owner-operator demand lift auction comps. Next-gen T680 aerodynamic updates raising year-1 residuals.
Peterbilt 579
Shares platform with Kenworth T680 but commands an aesthetic premium among owner-operators. Custom sleeper configurations fetch strong private-party resale above book.
Volvo VNL
Integrated D13 + I-Shift powertrain holds value for fleets already running Volvo service. Narrower resale pool limits private-party demand; strongest in fleet-to-fleet trades.
International LT
A26 engine era improving residuals vs. prior MaxxForce reputation. Strong regional resale in Navistar dealer footprints; softer in spot auction.
Mack Anthem
Vocational and regional lanes strong; long-haul resale thinner. MP8 + mDRIVE AMT holds value best when spec'd for regional delivery and dedicated contracts.
Age & mileage depreciation curves
A generalized Class 8 sleeper depreciation curve. Your specific truck's depreciation will vary with spec, maintenance history, and regional demand.
What is the Class 8 backlog-to-build ratio and why does it matter?
Backlog-to-build ratio divides the cumulative outstanding Class 8 OEM order backlog by the current monthly build rate, expressed in months. A ratio above 9 months signals constrained new-truck supply — fleets turn to the used market and resale values stay elevated. Below 4 months signals excess OEM capacity, fleets cancel orders, and used truck values fall as lease trade-ins and auction volume climb. ACT Research and FTR Associates publish this metric monthly.
Which used trucks hold value best?
Resale character varies by make and spec. Freightliner Cascadia and Kenworth T680 have the deepest buyer pools (parts, service network) and lead aerodynamic resale. Peterbilt 579 commands an aesthetic premium and owner-operator demand. Volvo VNL holds value well for integrated-powertrain buyers but trades in a narrower pool. International LT and Mack Anthem have softer spot-market pricing but strong regional lanes. All else equal, automated manual transmission + DPF-current emissions + spec-appropriate rear ratio drive the highest residuals.
How much does mileage affect used Class 8 resale value?
Mileage is the dominant variable after year. As a rule of thumb, used Class 8 sleeper trucks depreciate roughly 20% in year 1, 12–15% annually in years 2–5, and 8–10% annually thereafter. A truck at 500,000 miles is in a sweet spot — out of the original warranty window, still well within engine rebuild interval. Beyond 750,000 miles, depreciation flattens because the truck is already at a rebuild decision point; dealers price to the next owner's rebuild assumptions.
Where does used truck pricing and resale data come from?
The industry references ACT Research (Classes 5–8 publications), J.D. Power commercial truck guides, Sandhills Global (TruckPaper auction comps), and Ritchie Bros. auction results. TruckRadar aggregates dealer asking prices across our listing partner network to show median listed pricing by make/model/year/mileage band.
Should I sell or hold a used truck when backlogs are long?
Long backlogs (above 9 months) are the best window to sell used equipment — new truck supply is constrained, so used prices hold. Short backlogs (below 4 months) are the best window to buy — OEM incentives hit new trucks, pulling used prices down in sympathy. Fleet operators running tight trade-cycle programs often sell during long backlogs and repurchase later in the cycle to maximize residual capture.
Asking-price ranges updated 2026-08-23. Suppressed model-years mean the priced sample was too thin or too concentrated to publish — not that no trucks are listed.
How often does TruckRadar update used truck value commentary?
This page is editorial and refreshed monthly in tandem with ACT Research and FTR Associates order reports. Active market pricing on individual trucks updates in real time through our dealer inventory feeds — browse /trucks/class-8 for live listings.