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1GM10C Marine

Yanmar 1GM10C · 1GM family: specifications, its industrial/tractor base engine, cross-referenced parts and where to buy them.

🚜 Base engine confirmed

The Yanmar 1GM10C is the SD20 saildrive trim of the 1GM10 single-cylinder marine diesel. Internal service parts are Yanmar OEM — no industrial donor block. Parts catalog 0CF10-G50401 is loaded on this site. source

9 hp6.6 kW
318 ccdisplacement
75×72 mmbore × stroke
1-cylcylinders
from 1983year range (approx)
NAaspiration

C = SD20 saildrive trim of 1GM10 (Yanmar 1GM10 OM / datasheet)

📋 Full specifications 🚜 Industrial / tractor base 🔧 Aftermarket 34
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 · 81 assemblies

The exploded parts diagrams for the 1GM10C, grouped by system. Open a figure for its callout part numbers and per-variant quantities.

Camshaft & timing gears

Fig 2 — GEAR HOUSINGFig 19 — CAMSHAFT

Controls

Fig 46 — CONTROL DEVICEFig 48 — IDLE ADJUSTERFig 51 — SPEED REMOTE CONTROLFig 76 — SINGLE LEVER CONTROL(OPTIONAL)Fig 77 — MORSE CABLEFig 89 — REMOTE CONTROL DEVICE

Cooling – fresh water

Fig 32 — COOLING WATER LINEFig 33 — THERMOSTATFig 34 — COOLING WATER LINE(OPTIONAL)

Cooling – sea water

Fig 14 — ANTI-CORROSIVE ZINCFig 30 — COOLING SEA WATER PUMPFig 31 — KINGSTON COCK

Crankshaft & flywheel

Fig 4 — FLYWHEEL HOUSINGFig 21 — CRANKSHAFT & FLYWHEEL

Cylinder block

Fig 1 — CYLINDER BLOCK

Cylinder head & valves

Fig 15 — CYLINDER HEADFig 16 — BONNETFig 28 — L.O.PRESS.REGULATING VALVE

Electrical & instruments

Fig 50 — ENGINE STOP DEVICEFig 53 — HAND STARTFig 54 — STARTING MOTORFig 57 — BATTERY SWITCHFig 58 — WIRE HARNESSFig 64 — PANEL(A-TYPE)Fig 66 — STARTING MOTOR COMPONENT PARTFig 70 — ELECTRIC BILGE PUMP(12V)(OP)Fig 72 — ENGINE STOP CABLE(OPTIONAL)Fig 78 — PANEL(B-TYPE)(OPTIONAL)Fig 79 — PANEL(B-TYPE)(NEW)(OPTIONAL)Fig 80 — PANEL(A-TYPE)(OPTIONAL)

Fuel injection pump & governor

Fig 35 — FUEL INJECTION PUMPFig 37 — FUEL FEED PUMPFig 44 — GOVERNOR DRIVING

Fuel injectors & nozzles

Fig 38 — FUEL INJECTION VALVE

Fuel lines, tank & filter

Fig 39 — FUEL STRAINERFig 41 — FUEL INJECTION LINEFig 42 — FUEL LINEFig 49 — FUEL CONTROL DEVICEFig 71 — FUEL TANK(OPTIONAL)

Gaskets, kits & spare parts

Fig 85 — GASKET SET(OPTIONAL)

Generator (genset)

Fig 56 — GENERATORFig 68 — GENERATOR COMPONENT PART

Intake and Exhaust

Fig 17 — AIR INTAKE SILENCERFig 18 — MIXING ELBOWFig 84 — REPAIR PART(OPTIONAL)

Lubricating

Fig 3 — LUB.OIL SUMPFig 7 — BREATHERFig 25 — LUB.OIL PUMPFig 26 — LUB.OIL DIPSTICKFig 27 — LUB.OIL STRAINERFig 29 — LUB.OIL LINEFig 69 — LUB.OIL WASTE PUMP(OPTIONAL)Fig 102 — LUB.OIL COOLER

Mounting

Fig 9 — ENGINE LIFTERFig 10 — ENGINE BRACKETFig 13 — FLEXIBLE MOUNT

Pistons, rods & liners

Fig 6 — MAIN BEARING HOUSINGFig 23 — PIST0NFig 24 — CONNECTING ROD

Tools & labels

Fig 8 — LABELFig 65 — TOOLFig 83 — SPECIAL TOOL(OPTIONAL)Fig 90 — TOOL(OPTIONAL)Fig 105 — SAFETY LABEL

Transmission & drive

Fig 60 — CLUTCHFig 61 — DUMPER DISKFig 62 — TAPER COUPLINGFig 63 — CLUTCH REMOTE CONTROLFig 73 — COUPLING(OPTIONAL)Fig 74 — STRAIGHT COUPLING(OPTIONAL)Fig 75 — SLIT COUPLING(OPTIONAL)Fig 82 — EXTENSION WIRE(OPTIONAL)Fig 86 — CLUTCH HOUSINGFig 87 — INPUT SHAFT & SUPPORT SHAFTFig 88 — OUTPUT SHAFTFig 97 — V-DRIVE HOUSINGFig 98 — INPUT SHAFTFig 99 — SUPPORT SHAFTFig 101 — V-DRIVE SHAFT
📚 Manuals & Sources
Specs— none yet
Operator's Manual— none yet
Service / Workshop Manual— none yet
Parts Catalog / List— none yet
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Category
Marine
Engine family
1GM
Year range (approx)
from 1983
Cylinders
1
Rated output
9 hp (6.6 kW)
Bore × stroke
75 × 72 mm
Displacement
318 cc
Max rpm
3600
Continuous rpm
3400
Aspiration
Naturally aspirated

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