Witchards,marine,yacht,engine,diesel,Kubota,WM Diesel,boat

WM22 Diesel Engine
(Click to enlarge)

The WM22 diesel is professionally marinized in Australia. Our engineering upgrade is heavy duty, and only proven components are chosen. Standard features include ZF Hurth gearboxes, Johnson water pumps, Polyflex engine mounts, Bosch electrical gear and VDO instrumentation. All WM Diesel engines feature large capacity heat exchangers made from 'admiralty bronze' with heavy walled copra nickel tube, which is hand soldered (with 45% silver solder) for extra long life. 

The WM22 is based on the Kubota DD905E and features the new E-TVCS, 3 vortex pre-combustion chamber design from Kubota. This offers improved efficiency with lower emissions.

All WM Diesels are covered by a full 12 months parts and labour warranty and the base Kubota engine has a 2 year world-wide warranty.

WM22 Performance Curve
(Click to enlarge)

Control Panel with ignition switch, VDO tacho, and 3 warning lamps.

WM22 Diagrams
(Click to enlarge)

Engine Model WM22  Note: 23.5HP or 17.5Kw

Engine Base Kubota D905 Note: 4 stroke diesel engine

Number of Cylinders Three  Note: In Line

Bore x Stroke 72x73.6mm Note: 2.83"x2.89"

Displacement 898cc  Note: 54.86 cu.in.

Maximum Output 17.5Kw  Note: 23.5HP

Maximum RPM 3600 RPM Note: See performance data below

Injection Indirect type Note: E-TVCS combustion system

Cold starting aid 3 x Glow Plugs Note: Easy access

Cooling system Heat exchanger Note: Hand made in copra nickel

Salt Water Pump 25mm Johnson Note: Quality pump

Exhaust Outlet 50mm Diameter Note: 2"

Engine Mounts Polyflex Note: Quality mountings


Alternator 50 AMP Bosch 12V Note: Quality alternator

Gear Box Hurth HBW100  Note: Choose 2-1 or 3-1

Propeller Rotation Right Hand  Note: Clockwise from aft

Weight  140Kg/308Pounds Note: Including gear box

Optional Extras: Polyflex flexible coupling, PTO pulley, shaft coupling, propeller, single lever controls, electric stop, compressor or bilge pump brackets, deluxe instrument panel, delux paint, installation kit, and hot water kits. 
Specific individual requirements and modification to our basic engine layouts available on request. 

Click on the life-rings above to navigate the site.

WM Diesel, Unit 1/10 Polo Avenue, Mona Vale 2103, New South Wales, Australia. 
Phone +61 2 9979 5480 Fax +61 2 9979 8863 wmdiesel@tpg.com.au