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Vetus M4.45 Marine

Vetus Vetus M4.45 · M4. family: specifications, its industrial/tractor base engine, cross-referenced parts and where to buy them.

🚜 Base engine confirmed

The Vetus M4.45 is a marinized NA Mitsubishi S4L2 (4-cyl 78x92mm 1758cc 42hp), same base block as the M4.17 SOLAS; internals cross to Mitsubishi S4L2 part numbers. source

42 hp30.9 kW
1758 ccdisplacement
78×92 mmbore × stroke
4-cylcylinders
from 2010year range (approx)
NAaspiration
📋 Full specifications 16 🚜 Industrial / tractor base 356 🔧 Aftermarket 15
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.

Second Alternator OEM option

The OEM parts book lists a factory second / extra alternator option for the Vetus M4.45 — not standard equipment. Use the kit or hardware below when fitting a house-bank / domestic alternator.

Part No.DescriptionIn figure
06-2009 ->) Hose pillar (for extra alternator Fig 22 — M4.15 M4.17 Circulatiepomp Circulation pump M4.35 M4.45
08-01335 Adapterkabel tweede dynamo 75A + 110A Adapter wiring second alternator 75A + 110A Fig 42 — Tweede dynamo 12 V - 75 A, 1p. Extension alternator 12 V - 75 A, 1p. M4.35 M4.45
08-01337 Set tweede dynamo 75A Set second alternator 75A Fig 42 — Tweede dynamo 12 V - 75 A, 1p. Extension alternator 12 V - 75 A, 1p. M4.35 M4.45
08-01338 Set tweede dynamo 110A Set second alternator 110A Fig 44 — Tweede dynamo 12 V - 110 A, 1p. Extension alternator 12 V - 110 A, 1p. M4.35 M4.45
STM6991 Bedrading 2e dynamo Wiring 2e alternator Fig 40 — M4.15 M4.17 Dynamo 12V-110A 1p 2e dynamo, kielkoeling Alternator 12V-110A 1p 2nd alternator, keel- 06-2009<- cooling 06-2009<-
STM6995 Set extra dynamo Set 2nd alternator Fig 40 — M4.15 M4.17 Dynamo 12V-110A 1p 2e dynamo, kielkoeling Alternator 12V-110A 1p 2nd alternator, keel- 06-2009<- cooling 06-2009<-
STM9805 Set 2e dynamo 110 A Set 2nd alternator 110 A Fig 43 — M4.15 M4.17 Tweede dynamo 12 V - 110 A, 1p., kielkoeling Extension alternator 12 V - 110 A, 1p., keelcool- ing
STM9806 Set 2e dynamo 75 A Set 2nd alternator 75 A Fig 41 — M4.15 M4.17 Tweede dynamo 12 V - 75 A, 1p., Interkoeling Extension alternator 12 V - 75 A, 1p., Intercooling
STM9857 V-snaar 75 A dynamo Fig 2 — 7 M4.15 M4.17 Service parts
STM9858 V-snaar 110 A dynamo Fig 2 — 7 M4.15 M4.17 Service parts
STM9862 Motorbedrading 110 A Fig 39 — M4.15 M4.17 Dynamo 110 A - 12 V 1P Alternator 110 A - 12 V Earth return M4.35 M4.45 Standaard Standard
STM9863 Bedrading extra dynamo 75 A Wiring second alternator 75 A Fig 41 — M4.15 M4.17 Tweede dynamo 12 V - 75 A, 1p., Interkoeling Extension alternator 12 V - 75 A, 1p., Intercooling

Parts by section · 94 assemblies

The exploded parts diagrams for the Vetus M4.45, grouped by system. Open a figure for its callout part numbers and per-variant quantities.

Body

Fig 1 — Info M4.15 M4.17 Servicekit Service kitFig 2 — 7 M4.15 M4.17 Service partsFig 3 — Service parts M4.35 M4.45Fig 9 — M4.15 M4.17 PTO PTO M4.35 M4.45Fig 11 — 7 M4.15 M4.17 Oliepeilstok Oil dipstickFig 12 — Oliepeilstok Oil dipstick M4.35 M4.45Fig 14 — M4.15 M4.17 Revisie pakkingset Overhaul gasket kit M4.35 M4.45Fig 18 — M4.15 M4.17 Motorsteunen Engine supports M4.35 M4.45Fig 19 — Afschermkap 2016-04 <- Protection cover 2016-04 <- M4.35 M4.45Fig 20 — Afschermkap 2016-04 -> Protection cover 2016-04 -> M4.35 M4.45Fig 21 — Olieaftappomp Oil drain pump M4.35 M4.45Fig 22 — M4.15 M4.17 Circulatiepomp Circulation pump M4.35 M4.45Fig 29 — 7 M4.15 M4.17 Slangen, binnenwater 06-2009 <- Hoses, coolant 06-2009<-Fig 30 — 11 M4.15 M4.17 Slangen, binnenwater 06-2009 -> Hoses, coolant 06-2009 ->Fig 33 — 7 5 M4.15 M4.17 Slangen, buitenwater Hoses, raw waterFig 34 — 7 7 M4.15 M4.17 Zeewaterpomp Seawater pumpFig 35 — Zeewaterpomp Seawater pump M4.35 M4.45Fig 45 — M4.15 M4.17 Zenders + schakelaars Sender units + switches M4.35 M4.45Fig 46 — 2001 <- M4.15 M4.17 Bedradingskast, 2001 <- Terminal box, 2001 <-Fig 47 — 2001 -> M4.15 M4.17 Bedradingskast, 2001 -> Terminal box, 2001 ->Fig 48 — Motorbedrading Engine wiring M4.35 M4.45Fig 55 — 16 M4.15 M4.17 Bediening, GAS Controls, THROTTLEFig 56 — Bediening, GAS Controls, THROTTLE M4.35 M4.45Fig 77 — M4.15 M4.17 Regulateur Regulator M4.35 M4.45Fig 80 — M4.15 M4.17 Verstuiverhouder Nozzle holder M4.35 M4.45Fig 95 — M4.15 SOLAS Tilt kit Tilt kit M4.17 SOLASFig 97 — M4.15 SOLAS Motorverwarming Engine heater M4.17 SOLASFig 99 — M4.15 M4.17 Separaat gemonteerd oliefilter + brandstof- Oil filter + oil filter separately installed M4.35 M4.45 filter

Cooling

Fig 23 — 30 M4.15 M4.17 Warmtewisselaar unit Heat exchanger unitFig 25 — M4.15 M4.17 Aansluiting circulatiepomp, kielkoeling 06- Connection of circulation pump, keelcooling 2009 <- 06-2009 <-Fig 26 — M4.15 M4.17 Aansluiting circulatiepomp, kielkoeling ->06- Connection of circulation pump, keelcooling 2009 ->06-2009Fig 27 — Aansluiting kielkoeling Connection keel cooling M4.35 M4.45Fig 28 — M4.15 M4.17 Thermostaathuis Thermostat housing M4.35 M4.45Fig 31 — Bovenkap interkoeling Upper cover intercooling M4.35 M4.45Fig 32 — Bovenkap kielkoeling Upper cover keel cooling M4.35 M4.45Fig 36 — Buitenwater pomp, Sea water pump, M4.35 M4.45 interkoeling/hydraulische keerkoppeling intercooling/hydraulic gearboxFig 37 — Buitenwater pomp, Sea water pump, M4.35 M4.45 interkoeling/mechanische keerkoppeling intercooling/mechanical gearboxFig 52 — M4.15 M4.17 Instr. paneel model '22' voor motor met 2e Instr. panel model '22' for engine with 2nd M4.35 M4.45 dynamo, kielkoeling alternator, keelcoolingFig 54 — M4.15 M4.17 Instr. paneel model '34' voor motor met 2e Instr. panel model '34' for engine with 2nd M4.35 M4.45 dynamo, kielkoeling alternator, keelcoolingFig 88 — 06-2009 <- M4.15 M4.17 Boileraansluiting, interkoeling, 06-2009 <- Calorifier connection, intercooling, 06-2009 <-Fig 89 — M4.15 M4.17 Boileraansluiting, interkoeling, 06-2009 -> Calorifier connection, intercooling, 06-2009-> M4.35 M4.45Fig 90 — 06-2009 <- M4.15 M4.17 Boileraansluiting, kielkoeling, , 06-2009 <- Calorifier connection, keelcooling, 06-2009 <-Fig 91 — M4.15 M4.17 Boileraansluiting, kielkoeling, 06-2009 -> Calorifier connection, keelcooling, 06-2009 -> M4.35 M4.45Fig 96 — M4.15 SOLAS Impeller interkoeling Impeller Intercooling M4.17 SOLAS

Crankshaft & Pistons

Electrical

Engine Block & Head

Fuel

Inlet & Exhaust

Lubricating

Transmission & Mounting

Valve Train

📚 Manuals & Sources
Specs— none yet
Service / Workshop Manual— none yet

External links — we host none of these documents.

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Category
Marine
Engine family
M4.
Year range (approx)
from 2010
Cylinders
4
Rated output
42 hp (30.9 kW)
Bore × stroke
78 × 92 mm
Displacement
1758 cc
Max rpm
3000
Continuous rpm
2500
Aspiration
Naturally aspirated

Related M4. engines

Vetus M4.14 (Mitsubishi K4E)Vetus M4.15 (SOLAS)Vetus M4.17 (SOLAS)Vetus M4.35Vetus M4.55 (SOLAS)Vetus M4.56