Meritor has announced that its 13X single-drive axle will become standard equipment on the International DuraStar in July. The axle will also be available as an option on other International medium-duty trucks. 

The 13X is based on Meritor’s 14X platform and designed specifically for medium-duty truck applications. The 13X is 59 pounds lighter and 0.5% more efficient than the company's previous offering. Available in a variety of ratios from 3.90 to 6.50 and with gross axle weight ratings between 17,000 and 21,000 pounds, the 13X is engineered for multiple medium-duty applications, including pick-up and delivery, beverage, utility, school bus, construction, and ambulance.

The 13X is also designed for applications with standard differentials. For limited application options that the 13X will not address, including ratios or driver-controlled differential lock, the 14X single-axle platform will continue to be available. The 13X can be configured with hydraulic disc brakes or drum brakes.

"The 13X axle brings Meritor's legendary durability and efficiency to a wide range of applications in the medium-duty market," said Ken Hogan, vice president, rear drivetrain for Meritor. "International Truck's medium-duty customers spec'ing the 13X will be equipping their fleets with an axle system that is lighter, more efficient and tailored to their needs. It's a smart choice for this market."