Yanmar 6LF530 – Inboard Diesel Engine 530 HP

Description

Pushing 530 horsepower at 3000 RPM from a 6.7-liter inline 6-cylinder block, the Yanmar 6LF530 delivers high continuous torque for luxury motor yachts and commercial craft. High-pressure common-rail fuel injection cuts mechanical clatter at idle, while turbocharged intercooled air management maintains intake air density during continuous high-speed cruising.

A closed freshwater heat exchanger system regulates internal block temperatures, keeping seawater out of internal waterways. Fitted with an SAE 3 flywheel housing, the engine features a 12V 120-amp alternator, native VC20 electronic vessel control, and a dry weight of 780 kg (1720 lbs).

Key Specifications of the Yanmar 6LF530 Inboard Marine Engine

• The 6.7-liter 6-cylinder engine produces 530 horsepower at 3000 RPM, delivering strong crankshaft power for heavy displacement and planing hulls.
• Common-rail direct fuel injection provides precise fuel pressure management, drastically reducing mechanical noise, vibration, and exhaust smoke.
• Turbocharged and intercooled air intake maximizes oxygen density, ensuring responsive throttle performance across mid-range operating speeds.
• Freshwater heat exchanger cooling isolates internal cylinder waterways from raw seawater, preventing internal scale buildup and corrosion.
• An integrated 12V 120-amp alternator supplies continuous charging current to maintain heavy house battery banks and bridge electronics.
• The standard SAE 3 flywheel housing supports flexible coupling to KMH61A hydraulic marine gears and compatible ZF transmission units.

Helm Use and Readability

Large displacement and electronic fuel control give this Yanmar inboard engine superior power density. A 25-liter oil sump ensures continuous lubrication under continuous heavy loads, while VC20 digital controls handle throttle synchronization.

Why Choose the Yanmar 6LF530 Inboard Marine Engine

Vessel owners select the 6LF530 marine engine for its massive 6.7-liter block and dependable 530 horsepower output. Common-rail injection and intercooled turbocharging deliver clean, quiet operation for luxury cruisers. With an SAE 3 housing, 120-amp alternator, and VC20 controls, it represents a modern repower choice.

Mounting and Compensation Considerations

Check engine bed stringer spacing and mount drops to ensure precise shaft coupling alignment. Make sure raw water intake scoops, sea strainers, and exhaust lines match flow specs for a 530 horsepower diesel engine.

Warranty and Support

Yanmar covers this propulsion unit with a 2-Year Limited Factory Warranty covering major engine block assembly defects. Mulmarine.com provides pre-purchase technical guidance and freight shipping customer support. Prior to freight shipment, staff verify the crated engine package against the confirmed order details. Review the applicable warranty information on Mulmarine.com before completing your purchase.

Before Ordering the Yanmar 6LF530 Inboard Marine Engine

Measure your engine room compartment hatch opening and height to confirm fitting space for a 6.7-liter block. Verify your transmission gear ratio, shaft coupling layout, and NMEA 2000 display compatibility before completing your purchase.