September 11, 2019

KEVIN WADLOW/Free Press
Certified Diesel Engine Corporation's Upper Keys facility, relocated to mile marker 101.6 in Key Largo, provides service, repairs and parts primarily for the marine industry. Manager and mechanic John Green, right, works with parts specialist Jorge Loy, left, and mechanic Juan Quezado.

KEVIN WADLOW/Free Press Certified Diesel Engine Corporation's Upper Keys facility, relocated to mile marker 101.6 in Key Largo, provides service, repairs and parts primarily for the marine industry. Manager and mechanic John Green, right, works with parts specialist Jorge Loy, left, and mechanic Juan Quezado.

KEY LARGO — Experience pays when getting a diesel-powered boat back on the water, says John Green of Certified Diesel Engine Corporation in Key Largo.

“We’re here for the boats,” said Green, a longtime Caterpillar technician and mechanic who manages Certified Diesel’s parts and machine shop at 101621 Overseas Highway. “Occasionally we can help with trucks or power generators, but our main focus is marine.

KEVIN WADLOW/Free Press
Certified Diesel Engine Corporation’s relocated facility in Key Largo now includes a 2,000-square-foot shop in addition to expanded space for parts.

“We stock commonly used items like belts, fluids and filters, and can usually get next-day delivery on just about anything else.”

The Key Largo facility is a satellite branch of the main Certified Diesel Engine Corporation founded in 1971 as a Fort Lauderdale marine-propulsion specialist.

In addition to Caterpillar, Certified Diesel also is an authorized outlet for Yanmar Marine, Cummins, John Deere, Scania and Northern Lights.

“We use genuine OEM parts and install them properly,” Green said. “We know how to do it right.”

Just like vehicle motors, marine engines evolve technologically.

“We have a lot of knowledge about changes that have been made in the engines over the years,” Green said. “That can reduce downtime and make a difference how soon a working man can get his boat back on the water.”

Certified Diesel can perform engine overhauls or sales, with on-site marina or dockside service available.

With veteran mechanic Juan Quezado, “we probably have 70 years of experience between us,” Green said. “We could build an engine from scratch in the shop if we had to.”

Jorge Loy joined the Certified Diesel as a parts specialist earlier this summer.

Hours run from 7:30 a.m. to 4 p.m., with some flexibility in the schedule.

For more information, call 305-509-7424.

kwadlow@keysnews.com