Yanmar 3GM30F Marine Inboard Diesel Engine 27hp Freshwater Cooled
$8,188.00
- Description
Description
Yanmar 3GM30F Marine Inboard Diesel Engine 27HP Freshwater Cooled
The Yanmar 3GM30F marine inboard diesel engine is a three-cylinder, 0.954-litre diesel with freshwater cooling through a heat exchanger. This 27HP-class Yanmar GM Series engine provides a replacement option to assess for an existing sailboat or small displacement-vessel installation. hisse-et-oh.com
Searching for a Yanmar 3GM30F engine for sale? Contact MSS Motorsports UG for current availability, the condition of the offered unit and an itemised quotation. Include your existing engine and gearbox details to establish the equipment required for your project.
Freshwater Cooling with a Separate Seawater Circuit
The Yanmar 3GM30F circulates engine coolant through the cylinder block and cylinder head. A heat exchanger transfers heat to a separate seawater circuit, which discharges through the exhaust mixing elbow.
This arrangement keeps seawater separate from the engine’s internal coolant circuit during normal operation. Both sides of the cooling system remain relevant when assessing condition: the heat exchanger, coolant pump, seawater pump, hoses and exhaust connections should all be reviewed. nhmr.nl
For a replacement enquiry, request available cooling-system service records and running-test evidence. Confirm the test duration, operating conditions and observed coolant temperature.
Technical Specifications
| Specification | Manufacturer-Published Reference |
|---|---|
| Engine model | Yanmar 3GM30F |
| Engine configuration | Three-cylinder, vertical four-stroke diesel |
| Displacement | 0.954 litres / 954 cc |
| Bore × stroke | 75 × 72 mm |
| One-hour crankshaft output | 20.1 kW / 27.3 metric HP at 3,600 rpm |
| Continuous crankshaft output | 17.7 kW / 24.1 metric HP at 3,400 rpm |
| Combustion system | Swirl precombustion chamber / indirect injection |
| Cooling system | Freshwater cooling with heat exchanger |
| Lubrication | Enclosed, forced lubrication |
| Starting system | Electric, 12V / 1.0 kW |
| Alternator reference | 12V / 55A |
The ratings above follow the cited Yanmar GM operation manual. The 27HP product label should be read alongside its 27.3 metric HP one-hour rating. Confirm the engine identification plate, fitted equipment and applicable documentation for the particular unit. hisse-et-oh.com
Match the Power Rating to Your Operating Requirements
The one-hour and continuous ratings serve different operating conditions. Discuss the continuous rating, intended cruising load and propeller demand with your installer when selecting a Yanmar sailboat replacement engine.
Vessel displacement, hull form, gearbox ratio and propeller selection influence the installation assessment. Engine condition and correct commissioning also matter when evaluating an older propulsion package.
Consult the Yanmar GM operation manual for original manufacturer operating information.
Gearbox and Shaft-Drive Installation
Yanmar’s GM operation manual illustrates the 3GM30F with a KM3P marine gearbox and describes a mechanical cone-clutch transmission arrangement. Identify the gearbox actually fitted to the offered engine before ordering. Manualzz
For your quotation, specify:
- Gearbox model, identification details and reduction ratio.
- Output coupling dimensions and propeller-shaft arrangement.
- Engine-mount spacing, shaft height and available compartment space.
- Throttle, shift and stop-control connections.
- Exhaust routing, cooling-water connections and electrical requirements.
For owners comparing freshwater-cooled models within the GM family, review the Yanmar 2GM20F marine inboard diesel engine. Assess its output and installation requirements separately.
Confirm Condition, Equipment and Total Purchase Cost
A useful Yanmar 3GM30F price comparison starts with a clear description of what is being supplied. Request a written quotation confirming:
- Engine condition, serial number and documented operating hours, where available.
- Service history and details of repairs or rebuilding.
- Available cold-start, warm-running and compression-test evidence.
- Cooling-system inspection findings and heat-exchanger service history.
- Gearbox, coupling, mounts, instruments, wiring and exhaust components included.
- Warranty provider, coverage, exclusions and any commissioning requirements.
- Packing, estimated dispatch timing and delivery charges.
If the engine is described as reconditioned, ask which components were inspected, repaired or replaced. Obtain the supporting work record and test results for that unit.
An itemised equipment list helps your installer identify additional parts and labour before you commit to the purchase.
Frequently Asked Questions
What does freshwater cooled mean on the Yanmar 3GM30F?
The engine uses a freshwater coolant circuit and heat exchanger. Seawater flows through a separate circuit to carry heat away, so the seawater pump and associated connections remain essential. nhmr.nl
Is 27HP the continuous rating?
No. The cited operation manual specifies 27.3 metric HP at 3,600 rpm for one-hour operation and 24.1 metric HP at 3,400 rpm continuously. Manualzz
Does the engine include a gearbox and manufacturer warranty?
Package contents and warranty depend on the offered unit and supply arrangement. Request an itemised quotation and written terms identifying the warranty provider.
Request Your Yanmar 3GM30F Quote
Contact MSS Motorsports UG for a Yanmar 3GM30F quotation with your vessel make and model, current engine designation, gearbox model and ratio, intended use and purchase timing. Include your billing and delivery addresses to request equipment pricing and transport costs for your destination.
