Westerbeke W27 Marine
Westerbeke Westerbeke W27 · W family: specifications, its industrial/tractor base engine, cross-referenced parts and where to buy them.
🚜 Base engine confirmed
The Westerbeke W27 is a marinized Mitsubishi K4D block (K4D-61WM); internals cross to Mitsubishi K4D part numbers. source
29 hp21.3 kW
1311 ccdisplacement
73×78 mmbore × stroke
4-cylcylinders
197 kgengine dry
1980–1984year range (approx)
NAaspiration
Cheaper-part coverage · 4/8
🚜 Base engine ✓🌀 Impeller ✓💧 Raw-water pump🛢️ Oil filter⛽ Fuel filter🌡️ Thermostat ✓➰ Belt⚓ Anode ✓
A ✓ means at least one cheaper channel — aftermarket, the tractor/industrial base engine, or a standard component — exists for this engine in that category.
Parts by section · 25 assemblies
The exploded parts diagrams for the Westerbeke W27, grouped by system. Open a figure for its callout part numbers and per-variant quantities.
Body
Fig 263 — YESTERBEKE 13-18-21-21-33 - FRESH YATER PUMPFig 264 — "'ESTERBEKE 13-18-21-27-33 - FRESH "'ATER PUMPFig 274 — 'WESTER BEKE 13 - GOVERNO~Fig 314 — WESTERBEKE SHIFT CONNECTION ON HBW
Cooling
Fig 256 — W[STERBEKE 18-21A-27l-33A - COOLING SYSTEMFig 265 — WESTERBEKE 4.4 BCD - 6.0 BCD - SEA WATER PUMP 3
Crankshaft & Pistons
Electrical
Engine Block & Head
Fuel
Generator
Fig 250 — WES TERBEKE BC-4.4KW - COOLING SYSTEMFig 262 — WESTERBEKE BT-8KW - COOLING SYSTEMFig 280 — WESTERBEKE 4.4-7.7-B-11-12 .. 5KW - FUEL S:lLENOIDFig 300 — - - WESTERBEKE BC-6K W BT-8KW FUE L SYSTEMFig 320 — WESTERBEKE 4.4-7.7-11-12.5KW - SYSTEM ELECT~ICALFig 335 — WESTERBEKE BC-4.4KW - BC-6KW - GENERATOR - BACK END - MOUNTFig 342 — WESTERBEKE BC-4.4KW - BC-6KW - AC OUTPUT GENER~TORFig 343 — WESTERBEKE 8.0 BTD - GENERATOR - BACK END - MOUNTING SYSTEMFig 350 — WESTERBEKE 4.4-7.7-11-12.5KW - GENERATOR MOUNTING SYSTt.MFig 352 — WESTER BEKE 4.4-7.7-11-12.5KW - GENERATOR 2 OR '+ WIPE 60 HERTZFig 360 — WESTERBEKE 4.4-7.7-11-12.5KW - GENERATIJR :3 WIRE 60 HERTZ
Inlet & Exhaust
Valve Train
📚 Manuals & Sources
Specs— none yet
Operator's Manual— none yet
Service / Workshop Manual— none yet
Parts Catalog / List
External links — we host none of these documents.
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- Category
- Marine
- Engine family
- W
- Year range (approx)
- 1980–1984
- Cylinders
- 4
- Rated output
- 29 hp (21.3 kW)
- Bore × stroke
- 73 × 78 mm
- Displacement
- 1311 cc
- Max rpm
- 3000
- Aspiration
- Naturally aspirated
- Dry weight (engine)
- 197 kg
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