Volvo Penta D4-230A Aquamatic DPI Sterndrive Engine Package

Description

Fast planing hulls achieve high cruise speeds and quiet low-speed dock maneuvering with the Volvo Penta D4-230A Sterndrive Package. This 3.7L 4-Cylinder diesel produces 230BHP at 3,500 RPM and 175BHP continuous at 3,000 RPM. Common-rail fuel injection requires strict 2-micron fuel pre-filtration, and the electro-hydraulic DPI drive demands scheduled hydraulic fluid service to maintain clutch life.

High-grade parent bore cast iron forms the cylinder block, reinforced with an integral lower ladder subframe. A single-piece 16-Valve cast iron head supports direct-acting dual overhead camshafts. The 12V 2-pole isolated marine electrical circuit includes a 3.0 kW starter and a 12V 115A alternator. Total physical dimensions span 36.2in long, 31.6in wide, and 30.6in high. Complete package dry weight with the DPI drive measures 1,378 lbs. Lube oil capacity holds 3.30 US gal.

Key Features of Volvo Penta D4-230A

Performance boaters buy Volvo Penta D4-230A sterndrive engine packages to equip fast interceptors and luxury yacht tenders with electro-hydraulic outdrive shifting. Marine yards choose this package for commercial workboat diesel engine repower refits requiring steerable sterndrive thrust.

• High-pressure common-rail injection sprays diesel fuel at up to 2,000 bar rail pressure
• Turbochargers feed compressed intake air through seawater-cooled intercoolers to maximize low-RPM torque
• Aquamatic DPI outdrives use electro-hydraulic clutch packs to eliminate shifting clunk and gear vibration
• DuoProp counter-rotating propeller sets produce direct straight-line tracking without rotational steering pull
• Electronic Vessel Control synchronizes electronic steering and throttle commands across CAN-bus links
• Rigid cast iron bedplates hold crankshaft tolerances tight under high combustion firing loads
• Multi-groove serpentine belt drives maintain steady rotational power to the 12V 115A alternator

Dynamometer Limits Thermal Bench Output

Dynamometer test records confirm 230BHP peak output at 3,500 RPM and 175BHP continuous power at 3,000 RPM. Turbo boost pressure stabilizes at 1.55 bar during continuous wide-open throttle tests. Freshwater heat exchangers hold core coolant temperature at 185°F under maximum continuous loads. Engine lube 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 prevent bearing wear. Exhaust gas temperatures stay below 1,260°F during full power runs.

Field Operation Maintenance Service Rules

Integrated electronic steering and throttle controls provide responsive helm action with under 2 lbs of steering wheel and lever resistance. Do not install this high-speed sterndrive package in heavy displacement work barges, steel canal boats, or vessels operating in shallow mud flats without clean raw-water intake feeds. It demands clean fuel and routine zinc anode replacement.

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