Cummins Marine Diesel Engine Model 6BTA5.9M1 [email removed by eBay] Remanufactured Using New Cummins Performance Parts Conforming To CPL8206 Tier 1 Specification, Full Water Cooled Exhaust Manifold And Turbo Charger, Keel Cooled, 12 Volt Starter and Alternator, SAE # 3        Flywheel and Housing To Match Most Popular Marine Gear Drives, Engine Is Jacket Water Aftercooled, Fuel Injection Pump Is Mechanical Style Rotary CAV-DPA. Can Provide Heat Exchanger Cooling As A Additional Option Price.