The Model 389 embodies Peterbilt heritage and merges it with a proven design to create a legendary classic. Lightweight components, such as the all-aluminum cab and the industry’s only aluminum hood, as well as a variety of lightweight front and rear suspensions, allow for increased load capacity. Aerodynamic enhancements for increased fuel savings all combine to ensure that your investment in the Model 389 pays dividends long after the initial purchase.
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KEY FEATURES & SPECIFICATIONS
| ENGINE |
CUMMINS ISX15 | PACCAR MX-13 |
| HORSEPOWER |
400-600 | 405-510 |
| TRANSMISSION |
FULLER |
| SLEEPER |
LOW ROOF: 44" / 58" / 72" | ULTRACAB: 58" / 72" / 78" |
| FRONT AXLE |
DANA SPICER 12 – 22K Ibs | MERITOR 12 – 14.6K Ibs
WIDE TRACK AVAILABLE |
| REAR AXLE |
SINGLE: DANA SPICER 21 – 30K Ibs | MERITOR 21 – 23K Ibs
TANDEM: DANA SPICER 40 – 52K Ibs | MERITOR 40 – 46K Ibs
TRIDEM: DANA SPICER 69K Ibs | MERITOR 66K Ibs |
| SUSPENSION |
PETERBILT AIR LEAF | PETERBILT FLEX® AIR | PETERBILT LOW AIR LEAF | PETERBILT LOW LOW AIR LEAF | PETERBILT QUADRA FLEX | PETERBILT AIRTRAC | REYCO 79KB | REYCO 102AR | REYCO MULTI-LEAF | HENDRICKSON RT | HENDRICKSON HAULMAXX | HENDRICKSON HN 522 | CHALMERS 854 | NEWAY AD 378 |