Description
Hyundai SeasAll L500 Marine Engine in California
California commercial operators and serious cruisers need an engine that stays composed under load—whether you’re pushing into afternoon seas, running long coastal legs, or powering onboard systems day after day. The Hyundai SeasAll L500 is a heavy-duty marine diesel built for professional use, delivering strong torque, stable high-load performance, and fast response to sudden load changes in a compact, refined package.
Powered by a 12.7L inline-6 with Electronic Unit Injection (EUI), the L500 delivers 500 PS (368 kW) at 1,800 rpm, producing up to 1678 lb-ft of torque and a wide, usable power band designed for real working duty.
Heavy-Duty Performance for Professional Demand
The L500P was specifically conceived as a Heavy Duty (S1) engine with the durability and stability demanded by commercial and professional vessels. It’s designed to hold steady at high load, and it responds cleanly when the load changes suddenly—an advantage for:
- Workboats and commercial craft
- Larger cruising vessels running long hours
- Vessels with heavy hotel loads or generator demand
- Applications where consistent torque matters more than peak rpm
Efficient Power Delivery with EUI Fuel Management
Hyundai SeasAll L500 Marine Engine in California Dimensions
The Electronic Unit Injector (EUI) system delivers precise fuel metering and timing control to support both performance and efficiency. Paired with an electronic engine control system, the L500 is engineered to be lighter, quieter, and more fuel efficient than traditional heavy-duty diesel layouts—without sacrificing durability.
Strong Torque Where It Counts
At California operating speeds, torque is what keeps a boat confident in chop and current. The L500 produces exceptional torque at low-to-mid rpm, supporting powerful acceleration, responsive control, and steady propulsion for heavily loaded vessels.
L500 Engine Variants
The L500 platform is offered across propulsion and power-generation roles:
- L500P (Shaftdrive) — Heavy Duty (S1)
- L500G (Generator) — Emergency duty
- L460G (Generator) — Prime power
Specifications
| Specification | L500P | L500G | L460G |
|---|---|---|---|
| Propulsion System | Shaftdrive | For Generator | For Generator |
| Engine Duty Rating | Heavy Duty (S1) | Emergency | Prime Power |
| Configuration | 4-Stroke, 24-Valve OHC, WGT with Intercooler, Fresh Water Cooling | Same | Same |
| Output | 500 PS (368 kW) | 500 PS (368 kW) | 460 PS (338 kW) |
| Rated RPM | 1,800 | 1,800 | 1,800 |
| Cylinders | In-line 6 | In-line 6 | In-line 6 |
| Displacement | 12,736 cc | 12,736 cc | 12,736 cc |
| Bore × Stroke | 130 × 160 mm | 130 × 160 mm | 130 × 160 mm |
| Compression Ratio | 16:1 | 16:1 | 16:1 |
| Max. Torque @ RPM | 232 kg·m @ 1,200 rpm | — | — |
| Injection System | Electronic Unit Injector (EUI) | EUI | EUI |
| Alternator | 24V – 90A | 24V – 90A | 24V – 90A |
| Engine Diagnostics | Yes | Yes | Yes |
| Fuel Consumption | 88.3 L/h | 88.3 L/h | 80.6 L/h |
| Dry Weight | 1,310 kg | 1,310 kg | 1,310 kg |
| Flywheel | SAE 14 | SAE 14 | SAE 14 |
| Flywheel Housing (P/J type) | SAE 1 | SAE 1 | SAE 1 |
Engineering Highlights
Engine Construction
- 6-cylinder inline, 24-valve OHC architecture
- Cast iron cylinder block and cylinder head
- Gallery oil-cooled, long-life mono steel pistons
- Integrated water jacket for thermal stability
- Single serpentine belt system with automatic tensioner
Lubrication System
- Gear-driven engine oil pump
- Closed system with forced feeding
- Integrated oil cooler in cylinder block
- Easily exchangeable oil filter cartridge
- Eco-type oil filter
- Washable auxiliary cyclone oil filter
- Electric oil extraction pump
Fuel System
- Electronic Unit Injector (EUI) system
- Gear-driven fuel pump
- Electronically controlled injection timing
- Fine fuel filter and water separator
- High-pressure six-hole injector nozzles
Electrical System
- 24V – 90A alternator
- Auxiliary engine stop button
- Air heating system for reliable cold starts
- Optional NMEA2000 converter
- Optional 2-pole system
Cooling System
- Gear-driven seawater pump
- Seawater-cooled intercooler and heat exchanger
- Auxiliary connector for cabin heating
- Corrosion-resistant materials in seawater circuit
- Rear-mounted seawater pump for easier access
Exhaust System
- Coolant-cooled exhaust manifold
- Cast iron exhaust pipe
- WGT (waste gate turbocharger)
Instrument Box & Control
- Engine self-protection and diagnostics
- CAN information display
- Engine diagnostic error code display
- Audible alarm and control lamps
- Idle & PTO rpm adjustable switch
Air Inlet
- Reusable air filter
- Optional intake extension kit
Compliance and Approvals
- IMO NOx (EIAPP) compliant
- Type approval: RINA Classification Society
Why the L500 Fits California Operations
California service profiles often demand long hours, heavy loads, and rapid response when conditions change. The Hyundai SeasAll L500 is built for that reality—strong torque at practical rpm, stable performance under sustained load, and electronic fuel control that supports efficiency and refinement. For operators who need heavy-duty reliability without sacrificing modern engine management, the L500 is a serious marine power solution.
Reviews
There are no reviews yet.