Natural Gas On-Highway Engines

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Fueling a cleaner future

Switching to natural gas vehicles helps you achieve cleaner air and decarbonized miles today. When using compressed natural gas (CNG), fleets can reduce their GHG emissions by 13-18%. Renewable natural gas reduces those emissions even more, as a carbon neutral - even negative - fuel.

Explore our natural gas engines

Featured heavy-duty engine

X15N

Discover the industry's first big bore natural gas engine that delivers solutions for a range of long-haul applications. With power ratings up to 500 hp and torque up to 1850 lb-ft, this engine will revolutionize heavy-duty transportation and your application needs.

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ISX12N

Power: 320 – 400 hp | Torque: 1150 – 1450 lb – ft

L9N

Power: 250 – 320 hp | Torque: 600 – 1050 lb – ft

B6.7N

Power: 200 – 240 hp | Torque: 520 – 560 lb – ft

Discover the renewable future

Knight-swift successfully tests new X15N

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PACCAR to offer X15N natural gas engine

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Natural gas is well-positioned to fuel vehicles for today's energy transition

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Destino cero

Our strategy for reaching zero emissions. We do this by helping customers succeed through innovative and dependable products that are good for our customers and environment.

Learn more about destination zero