Engines are more than a tool to move your trucks forward — they’re the beating heart. Every PACCAR Engine is meticulously designed for maximum power, performance, and efficiency.


The PX-9 gets you where you need to go when you need to get there. With one of the highest power-to-weight ratios in its size, this engine moves heavy payloads without hesitation.

Redefine Mid-Range

Electronic Control Module

As the brain of the PX-9, the ECM accurately controls all engine functions for optimum performance and fuel economy.

Heavy-Duty Design

The PX-9’s heavy-duty design extends engine life and protects engine components by lowering internal temperatures with targeted piston cooling and a bypass oil filtration system.

Variable Geometry Turbocharger

The infinitely adjustable VGT provides you the exact boost needed for a fast, superior response.

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Power You Can Trust

The PX-9 claims one of the highest power-to-weight ratios in its class. Available in both heavy-duty and medium configurations, this engine steps up to power your trucks with superior strength and durability.

Never Miss a Mile

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