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S6A3-Y2MPTK-5 product shot
Engines

Mitsubishi S6A3-Y2MPTK-5

Power

529 HP

Certification

Tier 2 Replacement

Manufacturer

Mitsubishi

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The Mitsubishi S6A3 gives operators a 529 HP marine diesel engine option for vessels that need Tier 2 Replacement power in a durable, large-displacement platform. With 33.93L displacement and a 1900 RPM output rating, this Mitsubishi Marine engine can support applications where steady performance, mechanical simplicity and service access are important to long-term operation. For operators comparing Mitsubishi engines in the 500 HP range, the S6A3 offers heavy-duty construction, in-frame overhaul capability and proven reliability for demanding marine work. Laborde Products can help review specifications, discuss replacement needs and connect customers with dealer support for parts, service and quote requests.

SPECIFICATIONS
PRODUCT FEATURES
WARRANTY & CARE

Specifications

VIEW PRODUCT BROCHURE
Output 529 HP @ 1900 RPM
Bore/Stroke 5.91in x 6.30in (150mm x 160mm)
Displacement 33.93L (2,071 cu. in)
Dimensions 90.16in (2,290mm) x 56.54in (1,436mm) x 63.72in (1,618.5mm)
Weight (Dry) 7,453 lbs (3,380kg)

Why Choose Laborde Products for Maritime Propulsion Systems?

Our marine propulsion systems are made to last. They’re fuel-efficient and packed with the latest technology. We’re proud to offer engines from top brands like Steyr, Scania, Yanmar, and Mitsubishi.

At Laborde Products, we don't just sell engines—we provide complete solutions. Our expert team is here to support you every step of the way. We’re here to help, from pre-sales advice to installation and after-sales support.

With a full range of spare parts and maintenance services, we keep your vessel running smoothly with minimal downtime.

A Laborde Products field worker in a hard hat and life vest at a marine dockyard, with river barges above

OUR TEAM MEMBERS ARE READY TO HELP YOU!

Please feel free to contact us for more info about any of our products or services.

985-892-0107

info@labordeproducts.com