Who We Are!       

In 1993 its employees purchased Peninsular Engines from Peninsular Diesel. The focus was on bringing to the marine market a low cost, high quality  marine diesel. The GM 6.5 Liter 400 CID 6.5-liter engine was ideal. It filled a niche between  the higher costing and heavier Cats and Detroit’s and the less powerful four and six cylinder engines. More importantly, it was designed to replace the 454 and 502  "Big Blocks" with a minimum of reconfiguration.

Since then both the marinization and engine block have gone through evolutions. Since 1999 the engine block has been built by a subsidiary of American General, who builds the Hum-V military vehicle. This transformed it into a Mil-Spec engine having to meet rigid government testing standards. Their subsidiary, General Engine Products, built a new facility solely for the manufacture of the 6.5-liter diesel engine. Their main concern, and duly so, is quality control which they have achieved far above expectations. Since 1999 Peninsular has not had any internal problems or a block failure. General Engine Products builds the Peninsular engine to Peninsular specifications. This engine has changes that make it more agreeable to the marine environment and the higher horsepower.

The marine components of the engine have been redesigned and tested to ensure reliability, quality and performance. We have developed the tooling and hold the  patents on many of the changes. Each engine is dyno tested to ensure that it is  performing up to specifications prior  to leaving our facility. Our latest innovation  is the replacement of the glow plug controller. It  controls the amount of heat required to begin combustion during initial engine running. This part has always been a problem with a high failure rate. To solve this, we have replaced it with an adjustable timer switch that allows the operator to control the amount of heat to the glow plug. This is advantageous in colder climates where a longer heating cycle is required.

While Peninsular is not a household name, we do have the quality and performance and pricing demanded by today’s customer. We thank you for visiting our website and hope that you will take the time to look at our products.

We have a good engine, on par with others in our market without the cost. We would like the opportunity to prove it.

Remember safe boating

With best wishes,
Matt Koning
President Peninsular Diesel