Harley Marine Retrofit With Caterpillar Kits, Gain EPA Compliance

After close collaboration with North America's Cat Dealer Peterson, Harley Marine Services elected to install Caterpillar's 3500 marine emissions kits in their tugs. Peterson installed the 3500 emissions kits on 6x Cat 3516B marine engines in three different tugs, upgrading each vessel from EPA Tier 0 to Tier 2 while simultaneously improving the efficiency of their vessel.

Replacing the prime engine in a seafaring vessel to meet modern emissions laws can be a major challenge; for many vessel owners, the option to retrofit existing engines is an attractive alternative. Recognizing the need to provide flexible, comprehensive solutions to help customers address the increasingly complex emissions regulations, Caterpillar has introduced the EPA certified Cat® 3500 marine emissions kits.

Bay Area tug and barge operator Harley Marine Services was eager to incorporate sustainable, efficient power solutions into their vessels and reached out to Cat Dealer Peterson to evaluate viable options for several vessels in their fleet. After close collaboration with Peterson, Harley Marine Services elected to install the 3500 marine emissions kits, becoming one of the first customers in North America to adopt the innovative technology in their tugs. Peterson installed the 3500 emissions kits on 6x Cat 3516B marine engines in three different tugs, upgrading each vessel from EPA Tier 0 to Tier 2 while simultaneously improving the efficiency of their vessel.

“The advantages of utilizing a 3500 emissions upgrade are attractive for many of our customers,” Randy Richter, Peterson parts and service support representative commented. “The customer doesn’t have to take his vessel out of the water, get the hull cut, and have the old engine removed to fit an engine with a different footprint than the one it replaces. It allows our customers to proactively incorporate compliant power solutions into their vessel while minimizing vessel down time.”

The Cat 3500 Marine Remanufacture Program applies to many commercial engines flagged or registered in the United States, and the requirements include a 25 percent 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.