The Cat® 3516E High Output (HO) commercial propulsion engine is engineered for demanding workboat operations that require immediate response, sustained power, and operational flexibility. With high torque at low rpm, rapid throttle response, and ratings up to 4023 bhp (3000 bkW) the 3516E (HO) delivers power on demand while simplifying vessel integration and supporting evolving emissions requirements across global operating environments.
Sequential turbocharging boosts low‑RPM torque for more confident handling in demanding workboat applications. Fast throttle response helps to ensure immediate power when needed, while a high power‑density design supports heavy loads and continuous, high‑intensity operation.
Water‑cooled exhaust manifolds reduce heat rejection to atmosphere and reduces engine room ventilation needs. A smaller footprint allows flexible layouts, while a self‑cleaning oil filter lowers maintenance effort and costs.
Switchable IMO II / III capability (when equipped) cuts aftertreatment wear and fluid use when IMO III isn’t needed. IMO III‑ready design minimizes future upgrade costs with no major exhaust, stability, or structural changes.
| Application | Workboat |
| Speed Range | 1800 rpm |
| Emissions | IMO II/ IMO III |
| Aspiration | Sequential Turbocharged / Aftercooled |
| Bore | 6.69in |
| Stroke | 8.46in |
| Displacement | 4766in³ |
| Rotation from Flywheel End | Counterclockwise or Clockwise |
| Configuration | V 16, 4-Stroke Cycle Diesel |
| Length | 123in |
| Height | 89in |
| Width | 71in |
| Dry Weight | 25353lb |
| Power Range | 3151 - 4023 bhp (2350 - 3000 bkW) |
| Standard Equipment |
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| Standard Equipement |
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| Optional Attachements |
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