Not available for online purchase.
Price is for standard engine package with no optional extras. We supply engines in the Solent area of the UK or for export.
Please call/email for our BEST PRICE or further info.

This is an experimental listing please ignore pricing of options

The three-cylinder 3YM20 is one of a series of new-generation compact diesels from Yanmar Marine, developing 21HP (15.3kW) at 3,600 rpm from a displacement is 0.854 litres.
The naturally aspirated 3YM20 features a completely redesigned cylinder block and combustion system, configured for quietest possible, vibration-free running. It is a vertical four-stroke, fresh water cooled. With indirect injection and a swirl pre-combustion chamber, this all-new unit complies with EPA Tier 2 and BSO/SAV Stage 2 emissions regulations.
A compact control panel, injection pump, electric stop solenoid and 60-amp alternator are introduced as standard. To meet heavier electrical demands, an 80-amp alternator is offered as an option. Maintenance has been simplified, with the water pump, fuel filter, oil change and dip stick located on the same side of the engine, at the front.
This engine is available as a standard inboard, or with Yanmar's double-seal saildrive unit. The inboard has a servo-cone clutch with a choice of 2.21:1, 2.62:1 and 3.22:1 forward ratios, plus 3.06:1 in reverse. The saildrive version, designated 3YM20C, has a constant mesh dog clutch, geared at 2.64:1 forward and reverse.