News Release

YANMAR America Announces First EPA Compliant Commercial Marine Engine

December 18, 2014
Yanmar Co., Ltd.

YANMAR America Announces First EPA Compliant Commercial Marine Engine

YANMAR America, a leader in the marine industry, is pleased to announce the introduction of its new EPA Tier III compliant commercial marine diesel engine. Rated at 755 mHP and 1900 RPM, the new 20.38-liter 6AYAM-ET uses a fully mechanical control system for easy servicing and reliable performance.

The four-cycle, in-line six-cylinder 6AYAM-ET offers several key features and benefits that make it a top choice for commercial vessel operators. First, the torque characteristics allow for stable cruising with the least amount of speed reduction even with sudden load changes. The engine also offers its globally acclaimed low fuel consumption and a continuous rating suitable for river push boats, tugboats, trawlers and other applications with uninterrupted operations or load cycles. Plus, a 500-hour service interval aided by a purpose-built marine design featuring a long stroke, water cooled exhaust manifold, special coated liner and nodular cast iron piston with coated piston rings assure minimum downtime to keep vessels on the water and out of the shop.

To comply with emissions regulations, the 6AYAM-ET uses an internal exhaust gas recirculation (EGR) system. This design does not require any external control devices or significant engine structure changes. In addition, the micro-sized multiple holes in the all-new injectors produce an even finer fuel mist, which combined with a unique combustion chamber, consistently produce more power while also lowering exhaust emissions and fuel consumption.

In addition to the engine, YANMAR also supplies original marine gears that can be adapted to a wide range of applications for better performance and easier maintenance.

As with all YANMAR commercial engines, this new engine is approved by leading Marine Class Societies.

For more information on this engine, please visit, call 770-877-9894 or email

About YANMAR America Corporation:

Based in Adairsville, GA, YANMAR America Corp. is a subsidiary of YANMAR Co., Ltd., which recently celebrated its 100th year of operation. YANMAR America is a recognized global leader in the design and manufacturing of advanced performance diesel engines and diesel-powered equipment for a multitude of market segments including marine and industrial engines, compact tractors, compact construction equipment and energy systems. YANMAR Co. Ltd. was established in 1912, and in 1933 became the world's first manufacturer to develop a practical small diesel engine. Over the last 80 years, YANMAR has been a manufacturer of world-renowned diesel engines, energy systems and agricultural, construction and industrial machinery. With global headquarters in Osaka, Japan, YANMAR is well recognized for the unsurpassed quality of its products. Its American headquarters representing North, Central and South America is located at 101 International Parkway, Adairsville, GA 30103. For more information, please visit


Delaney Langston
101 International Parkway
Adairsville, GA 30103