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Westerbeke 12B Two Marine

Westerbeke Westerbeke 12B Two · 12B-TWO family — specifications, its industrial/tractor base engine, cross-referenced parts and where to buy them.

🚜 Base engine confirmed

The Westerbeke 12B-Two is a marinized Mitsubishi L2E industrial block (L2E-62WM); internals cross to Mitsubishi L2E part numbers. source

12 hp8.8 kW
635 ccdisplacement
76×70 mmbore × stroke
2-cylcylinders
1983–1992year range (approx)
NAaspiration
📋 Full specifications 2 🚜 Industrial / tractor base 481 🔧 Aftermarket 30
Cheaper-part coverage · 6/8
🚜 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

External links — we host none of these documents.

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Category
Marine
Engine family
12B-TWO
Year range (approx)
1983–1992
Cylinders
2
Rated output
12 hp (8.8 kW)
Bore × stroke
76 × 70 mm
Displacement
635 cc
Max rpm
3600
Aspiration
Naturally aspirated
Interactive engine page