Keep your fleet running strong with PAI Industries intake and exhaust valves for heavy-duty trucks. Designed for engines like Paccar MX-13, Caterpillar C15, Detroit Diesel DD15, and Mack and Volvo platforms, these valves ensure airflow, sealing, and durability in demanding operations. Trusted by mechanics and fleets across the USA, they help prevent failures, reduce downtime, and extend service life in Peterbilt, Kenworth, and Freightliner trucks. Explore our full intake valve collection and exhaust valve collection for reliable heavy duty truck parts.