Difference Between 379 and 389 Peterbilt

The Peterbilt 379 and the Peterbilt 389 are two of the most popular models of heavy-duty trucks produced by the American manufacturer Peterbilt. Although the two models share a number of similarities, there are also …

The Peterbilt 379 and the Peterbilt 389 are two of the most popular models of heavy-duty trucks produced by the American manufacturer Peterbilt. Although the two models share a number of similarities, there are also many differences between them.

The most striking difference between the Peterbilt 379 and Peterbilt 389 is their size. The Peterbilt 379 is a larger truck, measuring anywhere between 117 and 127 inches from bumper to bumper. The Peterbilt 389 is slightly smaller, measuring 117 to 112 inches from bumper to bumper. This difference in size makes the Peterbilt 379 better suited for carrying large and heavy loads, while the Peterbilt 389 is better for hauling lighter loads.

When it comes to engine options, the Peterbilt 379 and the Peterbilt 389 differ slightly. The Peterbilt 379 is available with Cummins, Detroit, and Caterpillar engines, ranging from 400 to 600 horsepower. The Peterbilt 389, on the other hand, is available with Cummins, Detroit, and Paccar engines, ranging from 400 to 600 horsepower.

Another difference between the two trucks is their interior. The Peterbilt 379 is equipped with wood-grain trim and other luxurious features, while the Peterbilt 389 comes with chrome or stainless steel accents. Additionally, the Peterbilt 379 usually has more cabin space than the Peterbilt 389.

Finally, the Peterbilt 379 and Peterbilt 389 have different suspension systems. The Peterbilt 379 features a standard air suspension system, while the Peterbilt 389 is equipped with a tandem air suspension system. The tandem air suspension system offers superior ride quality, making it better suited for long-distance hauling.

In conclusion, the Peterbilt 379 and Peterbilt 389 are two of the most popular models of heavy-duty trucks. Although they share many similarities, there are also many differences between them. The Peterbilt 379 is larger and better for carrying large loads, while the Peterbilt 389 is smaller and better for hauling lighter loads. Additionally, the two trucks have different engine options, interior features, and suspension systems.

The Engine

The 379 Peterbilt was first introduced in 1987. It has a Caterpillar, Cummins, or Detroit engine, and comes with either manual or automatic transmission. It has a maximum engine speed of 2,300 RPM and a fuel tank capacity of up to 150 gallons. The 389 Peterbilt, on the other hand, was introduced in 2007 and was the successor to the 379 Peterbilt. It has an engine speed of 2,400 RPM and a fuel tank capacity of up to 200 gallons. The 389 Peterbilt also has a Cummins or Detroit engine and comes with either manual or automatic transmission.

The Exterior

The 379 Peterbilt has an exterior length of 43 feet and a wheelbase of 235 inches. It has a hood length of 96 inches and is available in either day cab or sleeper cab configuration. The 389 Peterbilt has an exterior length of 53 feet and a wheelbase of 290 inches. It has a hood length of 108 inches and is available in either day cab or sleeper cab configuration.

The Interior

The 379 Peterbilt has a seating capacity of up to three people, including the driver. It features a basic interior with features such as an AM/FM radio, a heater/ventilator, and a sun visor. The 389 Peterbilt, on the other hand, has a seating capacity of up to five people, including the driver. It features a more luxurious interior with features such as an AM/FM radio with CD player, air suspension seats, and a climate control system.

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