Toyota’s heavy-duty trucking unit was fined $1.6 billion on Wednesday over fraudulent emissions testing and other violations.

U.S. officials announced a $1.6 billion deal with Toyota's Hino Motors unit to settle charges it deceived regulators about the amount of emissions spewed by its diesel engines.

Toyota Motor unit Hino Motors has agreed to a $1.6 billion settlement with US agencies and will plead guilty over excess diesel engine emissions in more than 105,000 US vehicles, the company and US government said on Wednesday.

Hino Motors, a Toyota subsidiary, will plead guilty to conspiracy charges and pay penalties for deceiving regulators about its diesel engines, the E.P.A. said.

A Toyota Motor Corp unit agreed to plead guilty and pay over $1.6 billion in a settlement with U.S. government agencies to settle violations related to an emissions fraud scheme, the U.S. Justice Department said in a statement on Wednesday.

A Toyota division that manufactures trucks will pay more than $1.6 billion and plead guilty to violations related to the submission of false and fraudulent engine emission testing and fuel consumption data to regulators and the illicit smuggling of engines into the United States.

Hino Motors will plead guilty to submitting false emissions data to regulators for more than 100,000 heavy-duty trucks. The company will pay an array of fines, and fix some affected vehicles for free.

Toyota subsidiary Hino Motors will pay $1.6 billion to settle a fraud case that alleged the company deceived regulators about emissions amounts from its diesel engines, U.S. officials have announced.