A 2009 Kenworth T800 averages $75,000 today, with most selling between $54,500 and $75,000. ForCar prices the Kenworth T800 from real US listings across 3 model years ($27,000–$75,000) — trade-in, private-party and dealer, adjusted for mileage. Free, no signup.
Kenworth T800 value by year
What a Kenworth T800 is worth at each model year, from real US listings — the low (trade-in), median (private-party) and high (dealer) price.
| Year | Trade-in | Median | Dealer | Listings |
|---|---|---|---|---|
| 2009 | $54,500 | $75,000 | 6 | |
| 2008 | $50,000 | $50,000 | 6 | |
| 2002 | $27,000 | $27,000 | 4 |
How the Kenworth T800 depreciates
Median market price by model year — how a Kenworth T800 loses (or holds) value as it ages, from real listings. See how it tracks against the typical depreciation curve by age:
The newest Kenworth T800 averages $75,000; a 7-year-older one runs about $27,000 — roughly 64% lost over 7 years. The steepest drop is usually in the first few years.
The Kenworth T800 market right now
Every real Kenworth T800 listing plotted by year and asking price — the white line is the median; dots below it are priced under market (potential deals).
Adjust your Kenworth T800 value for mileage
Pick a model year and enter your odometer — see what your exact Kenworth T800 is worth on today's market.
Trade-in, private-party & dealer price
Every Kenworth T800 has three prices. Our low–median–high range maps to what a dealer pays you, what you'd get selling it yourself, and what a lot charges — compare with current used-market prices across all models.
For a 2009 Kenworth T800: a dealer trade-in offer is around $54,500, selling private-party nets about $75,000, and a lot asks near $75,000 — a $20,500 spread on the same car.
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Get an exact Kenworth T800 value by VIN
Trim, engine and options move the value. Decode your Kenworth T800's VIN free to pin the exact build, then check its market value.
More on the Kenworth T800
Kenworth T800 value FAQ
How much is a Kenworth T800 worth?
A 2009 Kenworth T800 averages $75,000 today (roughly $54,500–$75,000). Value depends on the year and mileage — see the table above for every model year, or add your mileage for an exact number.
Does mileage change the Kenworth T800 value?
Yes — higher mileage lowers value. Enter your odometer reading in the mileage tool above to adjust the estimate from the model-year average.
Is the Kenworth T800 value free?
Yes, every estimate is free with no signup, from real US market listings.
How is this calculated?
ForCar aggregates real asking prices for the Kenworth T800 from current US listings into the low (10th percentile), median and high (90th percentile) price per model year.
Which Kenworth T800 year is the best value?
See the value-by-year table and depreciation above — older years cost less but the newest years hold value best. The sweet spot is usually a few years old, where the steepest depreciation has already happened.
Is this a free Kenworth T800 Blue Book alternative?
Yes. ForCar is a free, no-signup alternative to Kelley Blue Book and NADA — instead of a private formula, you see what Kenworth T800s are actually listed for right now, by year and mileage.