Installed on DAF, Kenworth, and Peterbilt products around the world, PACCAR Genuine Parts include battery, starter, and alternator components for the PACCAR Charge Start System, as well as genuine PACCAR Filtration products designed exclusively for PACCAR heavy and medium-duty engines. PACCAR engines, including the acclaimed PACCAR MX 12.9-litre engine, use specially machined parts and innovative designs to maximize power and mileage while minimizing weight and emissions.