Westerbeke W40A Marine
Westerbeke Westerbeke W40A · W family — specifications, its industrial/tractor base engine, cross-referenced parts and where to buy them.
🚜 Base engine confirmed
The Westerbeke W40A is a marinized Perkins 4-107 wet-liner block (1754cc 79x89mm) - NOT Mitsubishi; internals cross to Perkins 4.107 part numbers. source
37 hp27.2 kW
1754 ccdisplacement
79×89 mmbore × stroke
4-cylcylinders
1985–1990year range (approx)
NAaspiration
Cheaper-part coverage · 1/8
🚜 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.
📚 Manuals & Sources
Specs— none yet
Operator's Manual— none yet
Service / Workshop Manual— none yet
Parts Catalog / List— none yet
External links — we host none of these documents.
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- Category
- Marine
- Engine family
- W
- Year range (approx)
- 1985–1990
- Cylinders
- 4
- Rated output
- 37 hp (27.2 kW)
- Bore × stroke
- 79 × 89 mm
- Displacement
- 1754 cc
- Max rpm
- 3000
- Aspiration
- Naturally aspirated
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