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Caterpillar’s Cat 336E Hydraulic Excavator replaces the 336D and features a more powerful engine that drives increased productivity and meets Tier 4 Interim emissions standards. With an SAE net power rating of 300 hp (236 kW), the Cat C9.3 ACERT engine delivers 12 percent more power and 4 percent faster cycle times than the 336D—all while improving fuel efficiency by 2 percent. Greater hydraulic pressure in heavy lift mode boosts lift capacity by 5 percent, contributing to high productivity when lifting large pipe and trench boxes. An electric regeneration valve captures and recycles energy when the boom is lowered. A new Engine Shutdown Setting enables owners and operators to specify how long the machine should idle before shutting down the engine. Additionally, the operator can reduce engine speed to idle with the touch of a button to help save fuel.