Hyundai Seasall H410 Commercial Inboard Marine Diesel Engine
Description
Satisfy strict commercial harbor emissions with the Hyundai Seasall H410 Marine Diesel Engine built for commercial passenger ferries and harbor service cutters. Generating 410 continuous horsepower at 2000 RPM from a 9.9-liter inline-six block, this engine cuts exhaust particulate emissions while burning 19.5 GPH at cruise through precision electronic unit injector metering.
The deep-skirt block uses compacted cast iron with wet cylinder liners for maximum torsional rigidity under sea load. A heavy cupronickel shell heat exchanger handles raw seawater cooling loops. The engine dry weight registers at 2,425 lbs. The oil pan holds 35 quarts of oil, and fuel connects via steel braided -8 JIC hose lines.
Key Features of Hyundai Seasall H410
Naval architects buy Hyundai Seasall H410 inboard engine systems for repower projects requiring extreme durability and low operational fuel burn. High structural mass keeps mechanical noise down to comfortable levels inside passenger ferry cabins.
- 2000-bar electronic unit injection creates micro-fine fuel mist for complete cylinder combustion
- Heavy cast iron block casting withstands massive combustion pressures without bore distortion
- Dual spin-on fuel filters feature transparent bowls for fast visual sediment inspection
- Hyundai Seasall H410 J1939 communication links provide real-time fuel consumption data to helms
- Bronze sea water impellers maintain heavy cooling flow across long commercial harbor transits
- Internal oil cooling jets spray the underside of pistons to lower crown thermal stress
- SAE #1 flywheel housing permits direct attachment to heavy hydraulic marine reduction transmissions
- Low-friction piston skirts lower internal parasitic power losses to save operational fuel dollars
Combustion Energy Heat Dispersion
Combustion timing advances automatically to deliver 1,260 lb-ft of continuous torque at 1200 RPM. Thermostatic regulators hold internal fresh-water loops between 165°F and 185°F. Seawater heat exchangers dissipate 18,200 BTU per minute of thermal energy to marine raw water lines. The engine achieves an economic brake specific fuel consumption of 202 g/kWh across steady cruise RPM.
Bed Clearance Exhaust Requirements
Mounting centers seat across 28-inch engine room stringer beds using four heavy-duty leveling mounts. Wet exhaust plumbing requires a 6-inch water-injected exhaust elbow following USCG Title 46 safety regulations. A minimum 3-inch gap under the engine pan preserves vital air flow and bilge clearance below.
Service Protocols Safety Boundaries
Electronic helm levers deliver smooth proportional engine control without transmission slam. Daily checks require visual inspection of raw water strainers and belt tensioners. This commercial engine is not engineered for intermittent pleasure craft sprint racing, uncooled dry exhausts, or untreated river silt operation without proper sand separators.
- Inspect belt tension and alternator alignment each shift
- Drain fuel water separator collection bowls every 50 hours
- Replace primary fuel and oil filter elements every 250 operating hours
Warranty Provisions Crate Inventory
The commercial warranty provides 2-Year or 5000-Hour coverage against manufacturing defects in commercial operations. The shipping crate contains the engine core unit, heavy vibration isolator pads, digital bridge display, wiring harness loom, sea water pump assembly, and full factory shop documentation.
Hyundai Seasall H410 Commercial Inboard Specs
| Manufacturer / Brand | Hyundai SeasAll |
| Model Designation | H410 |
| Engine Type | 4-Stroke Heavy-Duty Commercial Marine Diesel |
| Cylinder Configuration | Inline-6 |
| Total Displacement | 10.0 Liters (608 cu in) |
| Bore x Stroke | 122.0 x 142.0 mm (4.80 x 5.59 in) |
| Aspiration & Charge Air | Turbocharged with Electronic Variable Geometry (E-VGT) and Seawater-Cooled Intercooler |
| Cooling System Architecture | Tubular Heat Exchanger Closed Circuit with Raw Seawater Impeller Pump |
| Continuous Power Rating (P1) | 380 BHP (279 kW) @ 1,800 RPM |
| Maximum / Intermittent Power (P3/P4) | 410 BHP (302 kW) @ 2,000 RPM |
| Fuel Injection Platform | Electronic Unit Injector (EUI) Fuel System |
| Cylinder Head Metallurgy | Monobloc 24-Valve Cast Iron Cylinder Head with Overhead Camshaft |
| Cylinder Liners | Replaceable Wet Sleeve Cast Iron Liners |
| Flywheel Housing & Flywheel | SAE 1 Housing with SAE 14 Flywheel |
| Electrical System & Ground | 24V Isolated Ground Marine Electrical System |
| Starter & Alternator Output | 24V 5.5 kW Electric Starter / 24V 70A Marine Alternator |
| Lube Oil Sump Capacity | 35.0 Liters (9.25 US gal), Marine Wet Sump |
| Engine Coolant Capacity | 42.0 Liters (11.1 US gal) |
| Dry Weight (excl. gearbox) | 1,120 kg (2,469 lbs) |
| Overall Dimensions (L x W x H) | 1,515 x 888 x 1,072 mm (59.6 x 35.0 x 42.2 in) |
| Emissions Certification | IMO Tier II / CCNR Stage II |
| Fuel Compatibility | Ultra-Low Sulfur Diesel (ULSD No. 2), Marine Gas Oil (MGO DMA/DMB) |
| Transmission / Outdrive Compatibility | Bare Engine Bobtail - Compatible with D-I Industrial (DMT 170HL / DMT 240H) and ZF (ZF 325A / ZF 360) Marine Transmissions |
| Factory Warranty Period | Hyundai SeasAll 2-Year or 5,000-Hour Commercial Marine Warranty |
| Application Research | Offshore pilot tenders, commercial longliners, coastal transport launches, multi-role harbor patrol craft, and medium-displacement tugboats. |
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