Universal M4-30A Marine
Universal Universal M4-30A · M4 family: specifications, its industrial/tractor base engine, cross-referenced parts and where to buy them.
🚜 Base engine likely
The Universal M4-30A shares the bespoke Kubota Y-850 block of the M4-30. source
23 hp16.9 kW
852 ccdisplacement
66×62.2 mmbore × stroke
4-cylcylinders
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 · 24 assemblies
The exploded parts diagrams for the Universal M4-30A, grouped by system. Open a figure for its callout part numbers and per-variant quantities.
Body
Fig 2 — OIL PAN GROUPFig 5 — MAIN BEARING CASE GROUPFig 10 — IDLING APPARATUS GROUPFig 13 — NOZZLE HOLDER GROUPFig 14 — SPEED CONTROL PLATE GROUPFig 16 — WATER FLANGE GROUPFig 18 — WATER PUMP GROUPFig 20 — NAME PLATE GROUPFig 21 — ALT ERNA TOR GROUPFig 23 — BELL HOUSING GROUPFig 24 — THROTTLE BRACKET GROUP
Cooling
Crankshaft & Pistons
Engine Block & Head
Fuel
Inlet & Exhaust
Transmission & Mounting
Valve Train
📚 Manuals & Sources
Specs
- Advanced Specifications - Old Model Mfr Westerbeke
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
- M4
- Cylinders
- 4
- Rated output
- 23 hp (16.9 kW)
- Bore × stroke
- 66 × 62.2 mm
- Displacement
- 852 cc
- Continuous rpm
- 3600
- Aspiration
- Naturally aspirated