Autocar will be first to get Cummins lighter X12 engine in a refuse truck

Updated Apr 20, 2018

Cummins announced this week that vocational truck manufacturer Autocar will be introducing the X12 engine in its ACX model later this year.

Autocar, known for its severe-duty cabovers, will benefit from the lower weight of the X12, Cummins reported. The X12 weighs 733 pounds less than Cummins’ previous 12-liter engine.

“With its best-in-class power-to-weight ratio, Cummins believes that the X12 engine will be well suited to address the needs of the refuse market as well as other weight sensitive vocational applications,” said Brett Merritt, vice-president of Cummins on-highway engine business. “Autocar is a key player in the North America refuse market and this introduction will further our current collaboration across diesel and natural gas platforms.”

Autocar ACX 6×4Autocar ACX 6×4

The Cummins X12 boasts a low engine weight of 2,050 pounds and delivers up to 500 horsepower. The X12 has the highest power-to-weight ratio of any comparable engine in the market.

“Autocar is focused on bringing innovations to the market with real, tangible benefits to our customers,” said Jim Johnston, president of Autocar. “This new engine puts more cash in our customers’ pockets, plain and simple. We’re gratified that Cummins trusts us to bring the X12 engine to the refuse market first.”

The X12 uses the latest Single Module aftertreatment system, which takes up to 60 percent less space and weighs up to 40 percent less than prior aftertreatment configurations. Combined engine and aftertreatment weight for the X12 is around 2,240 pounds – considerably lower than that of any other heavy-duty system.

“Built around improved uptime and reliability, the X12 will be in prime position to support Autocar’s vision of ‘Always Up,’” Merritt said.

The X12 will be available in Autocar’s ACX starting in the fourth quarter of 2018.