Kenworth W900 vs Peterbilt 389
Two sleeper rigs compared spec for spec: the W900 (1961–2024, Up to 605 hp) against the 389 (2007–2023, 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.
W900
A six-decade legend. The long-nose icon.
389
The chrome king. The owner-operator icon.
| Spec | Kenworth W900 | Peterbilt 389 |
|---|---|---|
| Maker | PACCAR | PACCAR |
| Class | Class 8 | Class 8 |
| Body type | Sleeper | Sleeper |
| Years | 1961–2024 | 2007–2023 |
| Rating | Up to 80,000 lb GCWR | Up to 80,000 lb GCWR |
| Power | Up to 605 hp | Up to 605 hp |
| Engines | PACCAR MX-13, Cummins X15, Cummins ISX | PACCAR MX-13, Cummins X15, Cummins ISX |
| Applications | Owner-operator, Show truck | Owner-operator, Show truck |
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.
About the Peterbilt 389
The Model 389 was Peterbilt's flagship long-hood conventional and a premium throwback prized by owner-operators, famous for the longest, lowest hood the brand ever built. Peterbilt produced the final 389 in 2024, ending the 359/379/389 family's roughly 57-year run and retiring the 300-series lineage; the new Model 589 took over its mantle.
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.
