Marine Engines

Great Lakes Diesel offers full service for your marine diesel engines. One of our specialties in the marine areas are tugboat engines. We build custom marine diesel engines to suit your needs from luxury cruisers to high powered race engines. Our engines provide the best running horsepower and fuel economy. Contact us for more information.

Customized Cat® 3406 Marine C-15 Performance Engine

Power You Can Feel From Behind The Wheel Great Lakes Diesel is internationally known as Master builders and modifiers of Caterpillar® engines. Proprietor Rick Plauman and his crew of techs is even more excited about your diesel engine than you are. They work all day every day on Cat diesels-tugboat engines, truck engines, tractor pull motors, and high-performance turbocharged marine engines – so they really know their stuff. Whether you want more power or better fuel economy (or both at once), call Great Lakes Diesel for a Cat built right.

Components (2 Year 2000 Mile Warranty Included):


• Custom Machined Block, Counter Bores & Line Bore
• New Crankshaft Standard and Balanced
• New 16 Liter 5.4 Bore 2 piece Steel Pistons – Balanced
• New Liners & Vitron O-Rings
• New Rods - Balanced as a Set
• New Michigan 77 Tri Metal Bearings
• New Viscus (Liquid Filled) Harmonic Balancer
• New 16 Liter Flywheel - Balanced
• Custom Head with New Stellite Valves, Seals & Guides
• New Steel Spacer Plate
• New Camshaft & Rollers
• Water Jacketed Exhaust
• New Stainless Steel Studs, Nuts & Bolts
• New Oil Cooler
• New Oil Pump
• New Water Pump
• New Fuel Pump Transfer
• New Heat Exchanger
• New Aspiration Turbocharged - After cooled
• New Sealed ECM & Performance Software
• New Liquid Cooled Turbo
• 853 HP @ 2300 RPM
• 2,421 ft/lb torque @ 1600 RPM