Kenworth W900 vs Kenworth T680
Two sleeper rigs compared spec for spec: the W900 (1961–2024, Up to 605 hp) against the T680 (2012–present, 405–565 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.
T680
Kenworth's aero flagship and fuel-economy leader.
| Spec | Kenworth W900 | Kenworth T680 |
|---|---|---|
| Maker | PACCAR | PACCAR |
| Class | Class 8 | Class 8 |
| Body type | Sleeper | Sleeper |
| Years | 1961–2024 | 2012–present |
| Rating | Up to 80,000 lb GCWR | Up to 80,000 lb GCWR |
| Power | Up to 605 hp | 405–565 hp |
| Engines | PACCAR MX-13, Cummins X15, Cummins ISX | PACCAR MX-13, PACCAR MX-11, Cummins X15 |
| Applications | Owner-operator, Show truck | Long-haul, Regional |
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 Kenworth T680
Launched at the 2012 Mid-America Trucking Show (production from 2013) as Kenworth's third-generation aerodynamic conventional replacing the T660 and T700, the T680 emerged from a four-year, $400 million program to develop the 2.1-meter cab and PACCAR MX engine. The 2021 T680 Next Gen made it Kenworth's most aerodynamic truck ever and introduced a 15-inch digital instrument display that Kenworth billed as the largest standard factory screen in any North American truck.
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.
