W900

The Kenworth W900 is a heavy-duty conventional-cab tractor built by Kenworth Truck Company, a subsidiary of PACCAR. First introduced in the 1960s, it became one of the best-known and longest-producing models in American trucking. The W900 is valued for its traditional long-nose design, high hood line, and strong loadability, making it a common choice for long-haul, logging, and heavy-haul operations.

Design and features include a long, square hood, a prominent grille, and vertical exhaust stacks. The cab is offered in multiple configurations, including day cabs and sleepers of various lengths, with a wide selection of wheelbases to suit different trailers and payloads. The W900 uses a robust steel ladder frame and a suspension system that can be configured with air or spring suspensions.

Over the years, Kenworth released several updates under the W900 family, including the W900A, W900B, and the long-hood W900L, the latter offering a longer hood and more interior space. The line has continued to evolve with newer emissions-compliant engines, while preserving the classic silhouette that defines the model.

Powertrain options have included Cummins ISX/ISX15 and PACCAR MX-series engines, paired with manual or automated manual transmissions. Payload, torque, and efficiency are tailored through various axle configurations and gearing choices.

The W900 remains a staple in fleets and a popular subject of trucking culture and customization, with a large aftermarket for styling, performance, and maintenance parts.