Westerbeke 20B Two Marine
Westerbeke Westerbeke 20B Two · 20B-TWO family — specifications, its industrial/tractor base engine, cross-referenced parts and where to buy them.
🚜 Base engine confirmed
The Westerbeke 20B-Two is a 2-cyl 635cc marinized Mitsubishi L2E block (L2E-62WM); internals cross to Mitsubishi L2E part numbers. source
18 hp13.2 kW
635 ccdisplacement
76×70 mmbore × stroke
2-cylcylinders
1987–2005year 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
External links — we host none of these documents.
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- Category
- Marine
- Engine family
- 20B-TWO
- Year range (approx)
- 1987–2005
- Cylinders
- 2
- Rated output
- 18 hp (13.2 kW)
- Bore × stroke
- 76 × 70 mm
- Displacement
- 635 cc
- Max rpm
- 3600
- Aspiration
- Naturally aspirated