Engine emissions kits now EPA certified

The marine remanufacture programme applies to many commercial engines flagged or registered in the US, and the requirements include a 25% particulate matter reduction at overhaul. By replacing the mechanical unit injector (MUI) system and other associated components on the engine, the upgrade kits offer vessel owners an in-hull solution that exceeds the requirements, and offers operational benefits.

“Leveraging technology has always been a goal of Caterpillar in both meeting customer expectations, but also in positively contributing to our environment. Caterpillar is committed to providing our marine customers with innovative solutions to meet increasingly challenging emissions regulations around the globe,” said P. Jaime Tetrault, product support director for Caterpillar Marine Power Systems. “Helping our customers deliver superior results while operating in a sustainable manner is of paramount importance to Caterpillar Marine Power Systems and we will continue to drive balanced product support and service solutions to the marine market.”

Caterpillar says that the 3500 emissions upgrade kits are an example of aligning sustainability with innovation to help its customers. Aside from the compliance and environmental benefits, an upgrade from a mechanical to an electronic EPA Tier 1 or Tier 2 configured engine can also result in numerous operational improvements. These benefits include improved diagnostic and display capabilities as well as smoother overall operation. As confirmed by several customers, an upgrade solution during the overhaul can result in lower vibration and noise levels, and a significant fuel savings. A lesser known advantage of electronic fuel injection engines is that they offer superior brake specific fuel consumption in the midrange versus a traditional mechanical fuel injection engine. “In many cases, we observe that our customers operate a significant percentage of their time below the rated power and speed, meaning that this upgrade kit will translate into both emissions reduction and operating cost savings over time,” Tetrault noted.

In some areas of the marine operating environment, state and national regulations prevent, or add surcharges to vessels which are not in compliance with the latest regulations. “Caterpillar believes the engine upgrade kits are the most beneficial technology to assist customers in complying with emissions regulations,” noted Terry Sears, Caterpillar Emissions Solutions product manager. “In addition to complying with the marine remanufacture program regulations, the ease of installation provides another win for customers. The entire upgrade can be accomplished in hull without major modifications to the design or structure of the vessel.”