Peterbilt 8.9L 6-cylinder
Peterbilt 8.9L 6-cylinder — every model and year that used this engine (17 models, 1985–2025), based on NHTSA VIN build data, with links to prices and reliability.
8.9L · 6 cylinders · seen in 17 models, 1985–2025
By the numbers
Output range 250–310 hp (median 260 hp). Gasoline: 14%. Diesel: 86%. Based on 210 decoded NHTSA VIN build sheets.
Models that used this engine
| Model | Years with this engine | Fuel | VIN builds seen |
|---|---|---|---|
| 348 | 2014–2022 | Diesel | 50 |
| 337 | 2014–2023 | Diesel | 34 |
| 320 | 2004–2021 | Diesel | 33 |
| 382 | 1985–2016 | Natural Gas | 30 |
| 365 | 2009–2019 | Diesel | 20 |
Engine usage derived from NHTSA VIN build data (displacement + cylinder configuration). Model links lead to prices, generations and reliability.