Kenworth T800 vs Kenworth W900
Two trucks compared spec for spec: the T800 (1986–2021, Up to 605 hp) against the W900 (1961–2024, Up to 605 hp). Same data we keep on every truck in the encyclopedia — and Mike on hand if the answer depends on your routes and loads.
T800
The legendary do-anything workhorse.
W900
A six-decade legend. The long-nose icon.
| Spec | Kenworth T800 | Kenworth W900 |
|---|---|---|
| Maker | PACCAR | PACCAR |
| Class | Class 8 | Class 8 |
| Body type | Vocational | Sleeper |
| Years | 1986–2021 | 1961–2024 |
| Rating | Up to 92,000 lb GVWR | Up to 80,000 lb GCWR |
| Power | Up to 605 hp | Up to 605 hp |
| Engines | PACCAR MX-13, Cummins ISX, Caterpillar C15 | PACCAR MX-13, Cummins X15, Cummins ISX |
| Applications | Oilfield, Dump, Heavy haul | Owner-operator, Show truck |
About the Kenworth T800
Introduced in 1986 and nicknamed the 'Ultimate Workhorse,' the T800 became Kenworth's go-to vocational truck for dump, logging, tanker, and heavy-haul duty, with the wide-hood T800W rated to carry a Gross Combination Weight up to 330,000 lbs. After nearly four decades it was sunset alongside the W900 and C500, with production ending in 2026 over EPA emissions and component constraints.
About the Kenworth W900
Introduced in 1961, the W900 (the 'W' honors Kenworth co-founder Edgar Worthington) defined the long-hood American conventional and pioneered bulkhead-style doors with full-length hinges that rivals later copied. The 1990 W900L added 10 inches of hood, and after a 63-year run Kenworth confirmed in 2025 that the legendary truck would end production in 2026.
Which one fits your operation?
Specs only get you so far — routes, loads and the shop that maintains it matter. Mike, the free AI truck consultant, talks it through with you. No account, 24/7.
