Shop new and used Paccar PX-6 Engine Control Modules (ECM) on MyLittleSalesman.com . Compare active listings with prices from $745 to $1,000. Sellers include LKQ Heavy Truck, Vander Haag's, and Lucken Trucks and Parts. Filter by condition, price, or year to find the Paccar PX-6 Engine Control Module (ECM) that fits your job.