Workhorse Custom Chassis LLC has recalled 5,011 Class A motorhome chassis that were assembled from April through July of 2001, according to the National Highway Traffic Safety Administration (NHTSA).

Included in the recall are the W20, W22, P320032 and P320042 models. All are model year 2001 chassis.

Dealers will tighten the rear axle U-bolts on the chassis, according to NHTSA.