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The Tier3/Stage IIIA Cummins QSB6.7 engine achieves Tier 3/Stage IIIA compliance with in-cylinder technology that maintains a compact and simple installation that provides premium performance to every construction application. This new 6.7-liter diesel is ready to handle your toughest job. The QSB6.7 is based on the highly successful B Series engines with charge air cooling and turbocharging for strong performance and offers power ratings from 130-275 hp (97-205 kW). This engine combines proven full-authority electronic controls with the reliability and durability and long maintenance intervals you expect from one of the world”s most successful and durable engine designs. Every QSB has improved cold-start capability and is 5-9 decibels quieter in operation than its predecessor.