Upgrade kits for Cat engines

Caterpillar 3516B marine engine Caterpillar 3516B marine engine

Caterpillar has developed engine retrofit kits for the Cat 3500 series of marine engines which will allow customers to upgrade mechanical unit injector (MUI) engines to reduce emissions to Environmental Protection Agency (EPA) regulated levels.

The company has now started marketing these retrofit kits in all countries not governed by the EPA. Caterpillar is currently working closely with the EPA to gain certification for sale in the United States as soon as testing and analysis is completed. The sale of the kits will be managed through the global Cat dealer network and will begin shipping early in the autumn.

Aside from the clear environmental benefits of reducing emissions of carbon dioxide and NOx, the upgrade from a mechanical engine to an electronic engine (through the addition of an electronic control module) will also have numerous performance improvements, including lower fuel consumption.

“Despite the variety of technologies which could be used to affect the requisite reductions in particulate matter, Caterpillar believes the engine retrofit option will prove most beneficial to our customers,” notes Terry Sears, Caterpillar emissions solutions product manager. “By upgrading a mechanical engine to an electronic engine, the operator will gain smoother operation, easier diagnostics, and improved fuel economy above and beyond reducing emissions. The ease of installation is also another win because the entire retrofit can be accomplished in hull without major modification of the design or structure of the vessel.”

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