Cummins QSB6.7 380HP Marine Diesel Engine

DescriptionCummins QSB6.7 380HP Marine Diesel Engine for Sale at Coastal Wave MarineThe Cummins QSB6.7 380HP Marine Diesel Engine is a high-output, electronically controlled marine propulsion engine designed for demanding commercial vessels and performance-oriented recreational craft. Supplied brand new by Coastal Wave Marine, this engine is delivered in full marine configuration with genuine standard manufacturer accessories, ensuring long-term durability, regulatory compliance, and installation confidence.Built on Cummins’ proven 6.7-litre inline six-cylinder platform, the Cummins QSB6.7 marine diesel engine combines Bosch High-Pressure Common Rail (HPCR) fuel injection, advanced turbocharging, and seawater aftercooling to deliver strong torque, rapid acceleration, and optimized fuel efficiency in the 380 horsepower class.This rating is particularly suited to heavier semi-planing and planing hulls that require reliable mid-to-high range propulsion performance.Engineered for Demanding Marine OperationsThe Cummins QSB6.7 380HP Marine Diesel Engine is widely specified in:Offshore commercial workboatsFast patrol vesselsPassenger transport craftWindfarm support boatsPerformance motor yachtsPlaning hull applicationsThe 380HP configuration delivers enhanced torque and higher sustained cruising capability compared to lower horsepower variants in the QSB6.7 family, while maintaining efficient fuel consumption and mechanical reliability.Key operational advantages include:Strong low- and mid-range torqueSmooth and stable throttle responseReduced vibration for improved onboard comfortEfficient combustion with low visible smokeCompliance with EPA Tier 3 marine emissions standardsAdvanced Electronic Engine ManagementThe Cummins QSB6.7 marine propulsion engine features an integrated electronic control module (ECM) that continuously monitors and adjusts engine parameters for optimal performance.The system manages:Fuel injection timing and deliveryEngine load and duty cycleTemperature and pressure systemsRPM stability under varying operating conditionsThis electronic management enhances engine protection, reduces downtime risk, and supports preventative maintenance planning for commercial and recreational operators alike.Repower-Optimized SolutionThe Cummins QSB6.7 380HP Marine Diesel Engine is a strong repower candidate for replacing:Cummins 6BTA 5.9 engines in the 330–370HP rangeMechanical QSB5.9 configurationsComparable 350–400HP inboard diesel enginesIts installation footprint and mounting layout simplify integration into existing engine rooms while delivering increased horsepower and improved efficiency.Coastal Wave Marine provides technical assistance with:Gear ratio matchingShaft and driveline compatibility reviewCooling system selection (heat exchanger or keel cooled)Mounting and alignment consultationDuty rating selection (M1, M2, M3 classifications)Standard Manufacturer Accessories IncludedEach new Cummins QSB6.7 380HP marine engine supplied by Coastal Wave Marine includes genuine standard manufacturer accessories, ensuring a complete marine propulsion configuration.Standard components include:Marine heat exchanger cooling systemSeawater aftercoolerWet exhaust manifoldMarine electronic control module (ECM)Engine wiring harnessPrimary alternatorStarter motorFront engine mounts with isolatorsSAE flywheel housingFactory manuals and documentationThis guarantees delivery of a true marine-rated engine, not an industrial conversion.Configuration FlexibilityThe Cummins QSB6.7 380HP Marine Diesel Engine can be supplied in multiple configurations to suit vessel requirements:Engine-only (bobtail configuration)With ZF marine gearboxWith Twin Disc marine transmissionComplete propulsion package with integrated controlsHeat exchanger cooled systemKeel cooled configurationSlimline variant for restricted engine room installationsOur team ensures proper matching to hull type, displacement, and operational profile.Global Logistics and Export SupportCoastal Wave Marine supplies new Cummins marine diesel engines internationally, offering:Professional marine cratingExport documentation and commercial invoicingFreight coordination with global carriersDelivery to shipyards, ports, and marinas worldwideWe serve commercial operators and private vessel owners across North America, Europe, the Caribbean, the Middle East, Asia-Pacific, and Africa.Technical Specifications – Cummins QSB6.7 380HPSpecificationDetailsEngine ModelCummins QSB6.7Power Output380 HPEngine ConfigurationInline 6-Cylinder, 4-Stroke DieselDisplacement6.7 LitresAspirationTurbocharged and Seawater AftercooledFuel SystemBosch High-Pressure Common RailCooling SystemHeat Exchanger Cooled (Keel Cooling Optional)EmissionsEPA Tier 3 Marine CertifiedElectrical Options12V or 24V SystemsRotationCounterclockwise (Facing Flywheel)Why Buy from Coastal Wave MarineCoastal Wave Marine specializes in supplying brand-new Cummins marine engines with verified configuration and professional technical support.We provide:Genuine new engine sourcingRepower planning assistanceComplete propulsion package configurationInternational logistics coordinationClear technical documentation and supportWhen investing in a Cummins QSB6.7 380HP Marine Diesel Engine, proper specification and reliable supply are essential. Coastal Wave Marine ensures every engine is correctly configured, documented, and prepared for dependable marine operation.