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Westerbeke 65B Four Marine Diesel Engines
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Westerbeke 12C TWO Marine Diesel Engine

66 HP

Our Newest Engine - Four cylinder, four cycle smoothness at 2600 RPM!

Lightweight and Compact

Designed by Westerbeke, pioneers in lightweight marine diesel engines, the 65B Four is a compact four-cylinder engine perfect for difficult installations.

The 65B Four provides a power to weight ratio to be envied while requiring modest engine room.

65B Four - Overview & Specifications

Cylinders: 4
Bore: 3.86 in.
Stroke: 4.33 in.
Displacement: 202.50 cu. in.

Aspiration: Natural

Length: 49.90 in.
Width: 25.30 in.
Height: 27.90 in.
Weight: 730.00 lbs.


Standard Equipment

  • Fresh water cooling

  • Engine prewired to plug-in connector

  • EZ Bleed fuel system

  • 12 volt 72 ampere alternator

  • Domestic hot water connections

  • Coolant recovery tank

  • Throttle, stop, and shift control brackets

  • Low oil pressure and high water temperature alarms

  • Gear-driven sea water pump

  • Short profile marine gear with 1.88:1 reduction

  • Glow plug cold starting aid

  • Four point adjustable flex mounts

  • Lube oil drain hose

  • Tuned air intake silencer

  • Operator’s Manual and Parts List

  • EPA, CARB & CE compliant

Optional Equipment

  • Captain panel with alarm (tachometer with lights)

  • Admiral panel with alarms (tachometer with gauges)

  • Dual station senders

  • Other gear ratios

  • 100 amp alternator single output; 160 or 190 amp dual output in place of standard

  • Remote expansion tank

  • Fuel filter/water separator

  • Muffler and fittings

  • "A" on board spare parts kit

  • "B" extended cruising spare parts kit

  • Anti-siphon valve for overboard cooling discharge water

  • Technical Manual

  • Exhaust connection (water injected 90°, 45° elbow)

  • Propeller shaft couplings (rigid/flexible)

Adobe Acrobat Reader is required to view the  files below.

65B Four Specs

65B Four Technical Manual

65B Four Installation Manual

Please be sure to visit our Used & Surplus page for great prices on Westerbeke Marine Diesel Engines.


This Page Last Updated June 01, 2020

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