3YM30AE
Top of the YM range delivering strong performance and torque for larger sailing yachts, with HVO fuel compatibility.
Specifications
Rated Output
29 MHP (21.3 kW)
Displacement
0.85L
Cylinders
3 cylinders
Bore x Stroke
70 mm x 75 mm
Compression Ratio
21.0:1
Max RPM
3200 rpm
Alternator
12V 125A
Dry Weight
127 kg
Dimensions (L x W x H)
636 x 429 x 584 mm
Fuel Consumption
6.8 L/hr @ full load
Fuel System
Indirect injection
Cooling
Fresh water cooling with heat exchanger
Transmission
KM3P reverse gear (2.62:1) or SD25 saildrive
Specifications are indicative and may vary by configuration, drive option and model year. Contact us to confirm exact figures for your application against the latest Yanmar datasheet.
Key Features
Typical Applications
Why Choose the 3YM30AE?
The 3YM30AE is a compact auxiliary 0.85L 3-cylinder marine engine, well suited to mid-size sailing yachts, auxiliary power, displacement hulls.
Proven Reliability
Backed by over 100 years of Yanmar engineering excellence. Every engine is built to deliver thousands of hours of dependable operation in the harshest marine environments, giving you complete peace of mind whether cruising Port Phillip Bay or crossing Bass Strait.
Expert Local Service
Mariner Engineering provides factory-trained servicing from our Spotswood workshop. As an authorised Yanmar dealer, we carry genuine parts in stock and offer scheduled maintenance programs and warranty servicing for boat owners across Melbourne and beyond.
Fuel Efficiency
Designed for maximum fuel efficiency, keeping your running costs low while delivering reliable performance. The compact design means less weight and more usable space in your engine bay, which translates directly to better fuel economy on every voyage.
The 3YM30AE is a testament to Yanmar's commitment to producing the world's finest compact diesel engines. Founded in 1912, Yanmar pioneered the small diesel engine and has been at the forefront of marine propulsion innovation ever since. The 3YM30AE delivers 29 MHP from a 0.85L, 3-cylinder configuration, offering an exceptional power-to-weight ratio.
Yanmar engines are manufactured in Japan using precision engineering processes that ensure exceptional build quality and long service life. The 3YM30AE features advanced noise and vibration damping for a quieter, more comfortable experience on the water. With a global dealer network and comprehensive parts availability through Power Equipment Australia, owning a Yanmar means you'll never be far from expert support.
As Melbourne's trusted Yanmar dealer, Mariner Engineering can help you select the right engine configuration for your vessel, provide professional installation, commission the engine to factory specifications, and support you with ongoing maintenance throughout the life of your boat. Contact our team to discuss how the 3YM30AE can transform your boating experience.
Authorised Yanmar dealer
Genuine factory products, warranty and back-up — not a grey importer.
Factory-trained technicians
Diagnostics, servicing and commissioning from our Spotswood, Melbourne workshop.
Genuine parts in stock
OEM parts and consumables on the shelf to keep your boat on the water.
Supply, install & support
Repower specialists serving boat owners across Port Phillip Bay and beyond.
Other engines in the GM/YM Series
View full Yanmar range
The 1GM10 is Yanmar's most compact marine diesel, ideal for small sailing yachts requiring reliable auxiliary power with minimal weight and space requirements.
Compact 2-cylinder engine delivering excellent fuel efficiency with HVO fuel compatibility for environmentally conscious sailors.
Reliable 3-cylinder engine with excellent fuel efficiency, perfect for mid-size sailing yachts. HVO-approved for sustainable marine operations.
Enquire About the 3YM30AE
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Complete Service & Support
Every 3YM30AE from Mariner Engineering comes with access to our full service workshop in Spotswood, Melbourne. We offer scheduled maintenance, warranty servicing, genuine Yanmar parts, repowering, and expert technical support for boat owners across Port Phillip Bay and beyond.