Volvo Penta D6-300 – Inboard Diesel Engine 300 HP

Description

With 300 hp at 3,300 rpm, the Volvo Penta D6-300 uses a turbocharged and aftercooled 5.5L inline six-cylinder diesel configuration with common rail injection. The supplied specifications identify EN 590 or ASTM D975 diesel and a 17.5:1 compression ratio. Hydraulic marine gear, HS63AE or HS80AE drive options, SAE 4 flywheel housing, and Electronic Vessel Control define the listed propulsion-system arrangement.

The supplied dry weight is 656 kg, with a 12V 115-amp or 24V 80-amp alternator option. Heat-exchanger or keel cooling holds 16L coolant, while a water-cooled manifold forms the stated exhaust configuration. Pressure-feed wet-sump lubrication uses 20L oil capacity, and listed emissions ratings include EPA Tier 3, IMO II, and RCD II.

Key Specifications of the Volvo Penta D6-300 Marine Diesel Engine

• The 5.5L inline six-cylinder engine produces 300 hp at 3,300 rpm through turbocharged and aftercooled common rail diesel operation.
• Common rail injection supports the supplied EN 590 or ASTM D975 fuel requirement with a stated 17.5:1 compression ratio.
• HS63AE or HS80AE drive options require drivetrain confirmation alongside the hydraulic marine gear and SAE 4 flywheel housing.
• Electronic Vessel Control requires compatibility planning between the engine, helm controls, propulsion package, and vessel electrical system.
• Alternator options include 12V 115-amp or 24V 80-amp outputs for the listed electrical-system configurations.
• Heat-exchanger or keel cooling holds 16L coolant, while the water-cooled manifold defines the specified exhaust arrangement.
• Pressure-feed wet-sump lubrication uses 20L oil capacity, requiring service access for scheduled maintenance and fluid inspection.

Engine Configuration and Service Access

This Volvo Penta marine diesel engine uses 103 by 110 mm bore and stroke dimensions in an inline six-cylinder, four-stroke layout. The turbocharger, aftercooler, common rail fuel system, heat exchanger or keel-cooling components, water-cooled manifold, alternator, and hydraulic gear should remain accessible after installation.

The supplied 656 kg dry weight, Electronic Vessel Control, drive interface, cooling configuration, lubrication arrangement, and electrical system should be planned together. Engine-bed loading and service clearance must be reviewed before positioning the completed propulsion package.

Why Choose the Volvo Penta D6-300 Marine Diesel Engine

The D6-300 marine diesel engine combines 300 hp at 3,300 rpm with turbocharging, aftercooling, and common rail injection in a 5.5L six-cylinder platform. Buyers can assess its Hydraulic Marine Gear, HS63AE or HS80AE drive compatibility, Electronic Vessel Control, and alternator options. The supplied cooling choices, 16L coolant capacity, and 20L oil capacity add useful engine-room planning information.

Installation and Compatibility Considerations

Confirm engine-bed capacity for the supplied 656 kg dry weight and verify the completed propulsion package, SAE 4 flywheel housing, hydraulic marine gear, HS63AE or HS80AE drive interface, and Electronic Vessel Control compatibility. Plan shaft alignment, propeller matching, fuel supply, cooling-water or keel-cooling arrangement, water-cooled manifold routing, electrical wiring, ventilation, and service clearance before installation.

Use fuel meeting EN 590 or ASTM D975 requirements. Confirm provisions for 16L coolant capacity, 20L wet-sump oil capacity, hydraulic gear servicing, and access to the common rail system, turbocharger, aftercooler, cooling system, exhaust manifold, and electrical components.

Warranty and Support

Warranty coverage should be confirmed against the current Volvo Penta warranty policy applicable to the exact engine, purchase market, installation, and operating use. Mulmarine.com can assist with product details and order-related questions before purchase. Please review current warranty eligibility and coverage details on Mulmarine.com before purchase.

Before Ordering the Volvo Penta D6-300 Marine Diesel Engine

Before ordering, verify engine-bed dimensions, structural capacity for the supplied 656 kg dry weight, SAE 4 flywheel-housing compatibility, hydraulic gear selection, HS63AE or HS80AE drive requirements, Electronic Vessel Control, alternator voltage, fuel supply, cooling-water or keel-cooling arrangement, water-cooled manifold routing, ventilation, shaft alignment, propeller matching, and professional installation planning.