Workers will receive a 19% pay hike over five years under an agreement with Volvo Group-owned Mack Trucks and the United Auto Workers, according to a summary of the tentative agreement seen by Reuters.

Workers must still ratify the agreement covering 4,000 hourly workers that includes a $3,500 ratification bonus, improved retirement benefits, additional vacation and a reduction in the time needed to get to top pay. The agreement includes an immediate 10% pay hike upon ratification.

(Reporting by David Shepardson; Editing by Chizu Nomiyama)