Description

New Yanmar 6LY2A-STP Marine Inboard Diesel Engine 440HP For Sale

The Yanmar 6LY2A-STP Marine Inboard Diesel Engine 440HP is a proven high-performance propulsion system built for vessel owners who need strong acceleration, dependable offshore reliability, and long-term durability in demanding marine environments. Commonly used in sport fishing boats, express cruisers, patrol boats, fast leisure yachts, and repower projects, this engine delivers exceptional power in a compact inline-six platform.

If you are researching the latest Yanmar 6LY2A-STP price or looking for a Yanmar 6LY2A-STP for sale, this model remains one of the most trusted engines in Yanmar’s legendary 6LY lineup due to its strong power-to-weight ratio and proven offshore performance.

At Yanmar Marine Experts, we supply premium yanmar diesel motors for buyers seeking reliable propulsion systems with strong resale value and dependable long-term performance.

Built on Yanmar’s trusted 6LY platform, this marine yanmar engine remains popular among operators who need strong torque delivery without sacrificing valuable engine room space.

Key Features of Yanmar 6LY2A-STP Marine Diesel Engine

  • 440HP maximum output
  • Turbocharged and intercooled performance
  • Direct injection fuel system
  • Mechanical control system
  • Strong acceleration for planing vessels
  • Excellent fuel efficiency
  • Compact inline-six design
  • Reliable offshore cruising capability
  • Ideal for repower projects
  • Proven recreational and light commercial performance

This engine remains a strong option for buyers researching dependable yanmar engines for sale for performance-focused vessels.

Compatible Gearboxes & Propulsion Systems

The Yanmar 6LY2A-STP Marine Inboard Diesel Engine 440HP can be paired with compatible propulsion systems based on your vessel configuration and performance goals. Common options include Yanmar Gearboxes, Yanmar Powerboat Gears, and ZF Gearboxes for shaft drive applications. boating engine guides 

We help buyers select the proper reduction ratio, gearbox configuration, and complete propulsion package based on vessel design and operational requirements before shipment.

Technical Specifications

Technical SpecificationValue
Engine ModelYanmar 6LY2A-STP
Engine Series6LY Series
Maximum Output440HP (324 kW)
Rated Speed3,300 RPM
Continuous Output350HP (257 kW)
Engine Type4-stroke vertical water-cooled diesel engine
Number of Cylinders6 cylinders
Displacement5.813L
Bore x Stroke106 mm x 110 mm
Fuel SystemDirect Injection
AspirationTurbocharged & Intercooled
ControlsMechanical
Starting SystemElectric Start
Alternator12V – 80A
Cooling SystemFreshwater cooling
Dry WeightApprox. 535 kg
Dimensions1428 mm x 692 mm x 736 mm
Drive TypeInboard Shaft Drive
Recommended ApplicationsSport fishing boats, cruisers, patrol boats
ComplianceRCD 1, IMO Tier 2, EMC, SOLAS

These specifications are based on official Yanmar technical documentation.

Standard Manufacturer Package Includes

All engines supplied by Yanmar Marine Experts are brand-new bobtail units and typically include factory wiring components, engine documentation, owner manuals, installation manuals, flexible mounts, and standard manufacturer accessories.

Optional upgrades may include additional control stations and complete transmission packages.

Compliance & Certifications

The Yanmar 6LY2A-STP Marine Inboard Diesel Engine 440HP is built to meet applicable emissions and safety regulations depending on destination market requirements.

Applicable certifications include:

  • RCD 1
  • IMO Tier 2
  • EMC
  • SOLAS

Engine Availability

We maintain access to available inventory through our internal stock and global dealer network. Availability may vary depending on production schedules and market demand.

Warranty Coverage

All new Yanmar engines supplied by Yanmar Marine Experts include a standard 2-year manufacturer warranty for eligible recreational and commercial applications.

Qualified buyers may also be eligible for an additional +3 years extended warranty coverage, depending on engine model, usage classification, and compliance with manufacturer maintenance requirements.

Our team also assists customers with warranty registration, pre-delivery inspection documentation, and technical support before shipment.

Global Shipping

We ship worldwide through our logistics network using secure export packaging and complete documentation support. Shipping can be arranged under EXW, CIF, or CFR terms depending on your preferred delivery structure. Once your order is confirmed, processing begins immediately while final delivery timelines depend on your destination and inventory availability. boating maintenance guide

Frequently Asked Questions

Is the Yanmar 6LY2A-STP currently available?

Available inventory can be confirmed through our sales team.

Does it come with a gearbox?

Compatible Yanmar Powerboat Gears and ZF Gearboxes are available depending on your vessel setup.

Is this engine good for repower projects?

Yes, its compact footprint makes it highly suitable for repower projects.

Do you ship internationally?

Yes, we coordinate worldwide delivery and export documentation.

How do I request pricing?

Contact our team for the latest Yanmar 6LY2A-STP price and current availability.

Request a Quote

Contact Yanmar Marine Experts today to request pricing for your preferred Yanmar marine engine.

To help us prepare the most accurate quotation and ensure the correct engine configuration before shipment, please provide your:

  • Vessel type
  • Current engine model (for repower projects)
  • Preferred gearbox model
  • Preferred gearbox ratio
  • Delivery location
  • Purchase timeline

Our team can assist with engine availability, compatible Yanmar Gearboxes, Yanmar Powerboat Gears, ZF Gearboxes, export documentation, global shipping coordination, pre-delivery inspection, and warranty registration support before delivery.

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