The recall affects approximately 116,343 units. Affected Peterbilts include model year 2021-'24 Peterbilt 348, 365, 367, 389, 535, 536, 537, 548, 567 and 579 models.

Peterbilt Motors Co. announced that a California-compliant version of the Paccar MX-13 diesel engine is now available in its Model 579, Model 567 and Model 589 trucks.