MerCruiser Introduces New 4.3 MPI ECT Sterndrive

Mercury MerCruiser has announced a new 4.3 MPI ECT (Emissions Control Technology) engine, scheduled for release this month.

Rated at 220 horsepower, the 4.3 MPI ECT is designed to power everything from family runabouts to cruisers and houseboats. The catalyzed engine provides clean power that meets EPA and California Air Resources Board emissions regulations, ensuring the engine can be registered without limitations.

“MerCruiser is committed to the gasoline market by providing a brand portfolio of engines that not only meet emissions requirements, but also deliver the best boating experience,” said MerCruiser Brand Director Facundo Onni. “The 4.3 MPI ECT completes that portfolio.”

The 4.3 MPI ECT joins six other catalyzed engines in the MerCruiser sterndrive lineup, including the 3.0 MPI ECT, 5.0 MPI ECT, 350 MAG ECT, 377 MAG ECT, 8.2 MAG ECT and 8.2 MAG H.O. ECT.

The Mercury Marine engineering team describes the new engine as offering quieter and more fuel efficient operation with the previous non-catalyzed version, with otherwise similar performance. The company notes fuel economy improvements from 5 to 10 percent at cruising speeds, and a five percent improvement in pass-by noise measurements. Boat builders and service technicians will appreciate what is described as simplified installation and increased serviceability of this engine, which includes an easy-to-reach hot stud location, an easy-to-access oil cap, improved dipstick, color coded service points and easy maintenance features.

The 4.3 MPI ECT is available with MerCruiser's exclusive SeaCore System with best-in-class corrosion protection and SmartCraft Integrated Marine Technology.