Universal 5421 Marine
Universal Universal 5421 · 5421 family: specifications, its industrial/tractor base engine, cross-referenced parts and where to buy them.
🚜 Base engine confirmed
The Universal 5421 (21hp 3-cyl) is based on the Kubota D-850 block. source
21 hp15.4 kW
852 ccdisplacement
3-cylcylinders
NAaspiration
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.
Parts by section · 25 assemblies
The exploded parts diagrams for the Universal 5421, grouped by system. Open a figure for its callout part numbers and per-variant quantities.
Body
Fig 4 — MAIN BEARING CASE GROUPFig 9 — ENGINE STOP LEVER GROUPFig 12 — NOZZLE HOLDER GROUPFig 13 — SPEED CONTROL PLATE GROUPFig 15 — WATER FLANGE GROUPFig 16 — WATER PUMP GROUPFig 18 — NOZZLE HOLDERFig 19 — NAME PLATE GROUPFig 22 — BELL HOUSING GROUPFig 23 — THROTTLE BRACKET GROUP 256773 THROTTLE ASSEMBLYFig 24 — SHERWOOD WATER 300986 PUMP ~J 5 - -Fig 25 — SHERWOOD WATER PUMP NO. 302648 - ---,
Cooling
Crankshaft & Pistons
Electrical
Engine Block & Head
Fuel
Inlet & Exhaust
Transmission & Mounting
Valve Train
📚 Manuals & Sources
Specs— none yet
Operator's Manual— none yet
Service / Workshop Manual— none yet
Parts Catalog / List
- Parts Manual 200142 Mfr Westerbeke
External links — we host none of these documents.
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- Category
- Marine
- Engine family
- 5421
- Cylinders
- 3
- Rated output
- 21 hp (15.4 kW)
- Displacement
- 852 cc
- Max rpm
- 3200
- Aspiration
- Naturally aspirated