Volvo Penta D6-340A Aquamatic DPI Sterndrive Engine Package

Description

Propel offshore security tenders across rough chop with the Volvo Penta D6-340A Sterndrive Package. Combining mechanical supercharging with turbocharging across 6 cylinders displacing 5.5L, this system produces 340BHP at 3,100 RPM. High-pressure injection demands 2-micron fuel pre-filtration, and the electro-hydraulic DPI drive requires scheduled synthetic hydraulic clutch oil replacement to prevent clutch plate glazing.

A parent bore high-strength cast iron block integrates a reinforced bedplate subframe to eliminate structural crankcase flex under boost. The single-piece 24-Valve cast iron cylinder head contains dual overhead camshafts with direct valve actuation. Electrical components include an isolated 12V 2-pole circuit featuring a 3.0 kW starter and a 12V 115A alternator. Complete package dimensions span 45.3in long, 32.4in wide, and 30.7in high, scaling at 1,687 lbs dry. Lube oil capacity holds 5.28 US gal.

Key Features of Volvo Penta D6-340A

Commercial tender operators buy Volvo Penta D6-340A sterndrive packages to secure high top speed with clunk-free hydraulic dock maneuvering. Marine shipyards specify this powertrain for commercial workboat diesel engine repower installations in patrol skiffs.

• Mechanical superchargers generate low-RPM boost pressure to launch heavy hulls onto plane without hesitation
• Exhaust turbochargers take over at cruise RPM to sustain continuous shaft horsepower up to 3,100 RPM
• Common-rail fuel injection operates up to 2,000 bar pressure to optimize fuel burn and eliminate smoke
• Aquamatic DPI outdrives use electro-hydraulic clutch packs to remove mechanical shifting clunk and vibration
• DuoProp counter-rotating propellers track straight and provide powerful reverse stopping bite
• Cast iron ladder subframes hold crankshaft bearings rigid under high combustion firing loads
• Multi-groove serpentine belt drives maintain positive drive traction on the 12V 115A alternator

Bench Dynamometer Load Test Output

Dynamometer test records confirm 340BHP peak output at 3,100 RPM and 250BHP continuous output at 2,800 RPM. Compound supercharger and turbo boost pressure stabilizes at 1.70 bar during full-load testing. Freshwater heat exchangers hold coolant temperatures at 185°F under continuous maximum power dyno pulls. Engine oil pressure maintains 55 PSI across full operational revolutions. Sterndrive trim permits up to 30° static trailering angles. Crankshaft journal runout remains below 0.0005in TIR to protect bearings against deflection fatigue. Exhaust temperatures stay below 1,260°F.

Field Operation Maintenance Service Rules

Integrated electronic steering and throttle controls provide responsive helm action with under 2 lbs of lever resistance. Do not install this high-boost sterndrive package in heavy slow-speed displacement push-boats or vessels operating in shallow mud shallows that clog raw-water intakes. Operators must use clean ultra-low sulfur fuel and maintain sterndrive drive bellows regularly.

• Drain engine oil and change spin-on oil filter cartridges every 200 service hours
• Inspect DPI sterndrive gear oil, drive bellows, and sacrificial zinc anodes every 100 hours
• Replace the primary 2-micron fuel water separator filter cartridge every 250 engine hours

Factory Warranty Shipment Parts Manifest

Volvo Penta provides a 2-Year limited warranty backed by 3-Year major component structural coverage. The shipment crate contains the diesel engine assembly, Aquamatic DPI sterndrive unit, transom shield kit, 12V 115A alternator, 3.0 kW starter, electronic steering helm pump, EVC harness, and factory technical manuals.