Two more work truck upfitters – Terex South Dakota and Monroe Truck Equipment – are recalling modified Ford Super Duty trucks to address a fire risk linked to Muncie Power Products PTO assemblies, the National Highway Traffic Safety Administration reports.

The Terex South Dakota recall involves 74 2009-2013 model-year LT38, LT40, LTM40, NT29, TL37, HR40, L13i and TPL40 aerial devices built on 2009-2013 MY Ford F-350, F450 or F-550 Super Duty chassis with a 6.8L engine. These trucks, equipped with Muncie Power Products PTO assemblies, may experience oil leaks from the PTO pressure switch onto a thermal blanket covering the exhaust. This condition poses a fire risk, NHTSA said.

Monroe Truck Equipment is recalling 20 2009-2013 MY Ford F-350, F-450 and F-550 Super Duty chassis modified by the company because the Muncie Power Products PTO assemblies pose the same fire risk.

Both companies will remedy the problem by installing a new pressure switch kit that moves the switch away from the exhaust system. There will be no charge for the service.

A number of truck upfitters have issued recalls for the same problem. They include Manning Equipment, Dual-Tech, Iowa Mold Tooling Co., Tactical Vehicle Outfitters, Utility Truck Equipment Co., STAHL and Somerset Welding & Steel.

Truck owners can reach Terex at 1-605-882-4000. Terex’s number for the recall is SN611.

Truck owners can reach Monroe at 1-608-329-8454.