Engineering advancements are producing more efficient alternators for heavy trucks that are helping to reduce fleets’ fuel bills, industry experts said.

Aftermarket supplier Prestolite Electric’s IdlePro model alternator was selected by Daimler Trucks North America for standard position on new commercial vehicles set to launch in multiple markets between late 2019 and early 2020.

Prestolite Electric developed isolated ground technology for its IdlePro and IdlePro Extreme alternators to protect engines from potentially severe electrolytic damage caused by stray voltage.