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Kenworth W990

Heavy-duty

Kenworth adds two ratings for PACCAR MX-13 engine

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Paccar-MX-13-engine

Kenworth has added two new ratings for the 12.9-liter PACCAR MX-13 engine available for the Kenworth T680, T880 and W990.

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The first new rating of 405 HP and 1,650 lb./ft. of torque provides constant power for line haul applications, enhances integration with the PACCAR powertrain, and offers increased fuel efficiency according to the company.

The second is a multi-torque 455 HP rating with 1,650/1,850 lb./ft. of torque that is optimized for fuel-conscious heavy haul fleets and truck operators. This rating provides additional torque in the top two gears while pulling a load up a hill, eliminating the need to downshift, the company said.

As a result of the new availability, the PACCAR MX-13 engine now offers ranges of 405 to 510 HP and 1,450 to 1,850 lb./ft. of torque.

In addition, Kenworth now offers a variable speed fan clutch as on option for the 10.8-liter PACCAR MX-11 engine for the Kenworth T680 and T880. The clutch maximizes engine power to the drive axle, helps prevent under- and over-cooling in all climates, and provides faster warm-up and more efficient air conditioning, the company said.

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