Video: Caterpillar C4.4 Power Unit Designed for Flexibility

Introduced in 2014, the C4.4 power unit features DOC, DPF and SCR systems to meet Tier 4 Final emissions regulations

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The new engine being offered is a Cummins B6.7 with up to 325 hp. The new rear axle is designed for a Gross Axle Weight Rating (GAWR) of up to 23,000 lbs.
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