Mack Trucks has added an extended chassis fairing option for its flagship Anthem model. The fairing is designed to improve fuel efficiency by directing air around the rear axles.

The extended chassis fairings are seamlessly integrated with the Anthem’s existing fairings and the addition will improve fuel efficiency up to 0.5%, according to Mack.

For the best possible efficiency gains, the extended chassis fairings can be combined with Mack’s HE+ efficiency package, which includes the Mack MP 8HE engine, mDrive automated manual transmission and additional aerodynamic enhancements.

Featuring integrated steps, the extended chassis fairings also help improve driver access to the back-of-cab area for tasks like connecting and disconnecting trailer air supply lines.

“The cost of fuel is among the biggest expenses our customers face, which is why we are relentless in our pursuit of ways to improve efficiency,” said Roy Horton, Mack Trucks director of product strategy. “The extended chassis fairings are another tool we have to boost efficiency and help lower our customers’ total cost of ownership.”

The extended chassis fairings for Mack Anthem models are available for order now.