Yanmar 3GM
1980–198322.5 HP3-cylinderdiesel
Dieselraw water cooledinboard
Three-cylinder auxiliary diesel for 30-36ft boats.
Specifications
| Power | 22.5 HP @ 3,400 RPM | Cylinders | 3 |
| Displacement | 953 cc (58.2 ci) | Bore x Stroke | 75 x 72 mm |
| Fuel Type | Diesel | Aspiration | Naturally Aspirated |
| Cooling | Raw water | Drive | Inboard |
| Weight | 127 kg (280 lb) | Dimensions (LxWxH) | 735 x 455 x 495 mm |
| Fuel Use | 4.22 L/hr | Oil Capacity | 2.6 L |
| Transmission | KM3 |
Parts for the Yanmar 3GM
45 catalogued parts. Prices are reference figures; each “Find on Amazon” link opens a search for that part — confirm fitment against your engine's serial before ordering.
Cooling System (9)
Sea Water Pump — Yanmar 2GM/3GM/2GMF/3GMFfits: 121575-42001$657.32Search
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Raw Water Pump — Yanmar 2GM/3GMfits: 728270-42002$358.83Buy on ↗
Circulation Water Pump V54 — Yanmar 2GM/3GM/3HMfits: 20113$165.12Search →
Shaft Sea Water Pump Ysm — Yanmar 2GM/3GM/2GM20/3GM30fits: 124070-42061$131.24Search →
Pulley Water Pump — Yanmar 2GM/2GM20/3GM/3GM30/2YM20/3YM30fits: 124070-42400$40.22Search →- IMPELLERfits: Yanmar 2GM , 3GM , 2GM20 , 3GM30, 2QM15, SB8, SB12, SVE8, SVE12, YSB8, YSB12, YSE8, YSE12,$38.60Buy on ↗
Belt Sea Water Pump Ysm V12 — Yanmar 2GM/3GM/2YM/3HMfits: 20603$14.81Search →
Thermostat Gasket — Yanmar 1GM/1GM10/2GM/2GM20/3GM/3GM30fits: 104211-49160$9.53
· $15.78 ↗- IMPELLER GASKETfits: Yanmar 2GM , 3GM , 2GM20 , 3GM30, 2QM15, SB8, SB12, SVE8, SVE12, YSB8, YSB12, YSE8, YSE12,$4.46Buy on ↗
Fuel System (7)
Fuel Injector Nozzle — Yanmar 1GM/2GM/3GMfits: 124770-53001$104.78Buy on ↗- Yanmar Air Filter ( Intake Element )fits: Yanmar 2GM, 2GMF, 3GM , 3GMF, 2GM20 , 2GM20F, 2GM20-YEU, 2GM20F-YEU, 3GM30, 3GM30F, 3GM30-$36.18Buy on ↗
Air Filter V14 — Yanmar 2GM/3GM/2YM/3YMfits: 20601$31.75Search →
Fuel Filter M1 — Yanmar 1GM/2GM/2QM/2YM/3GM/3HM$17.98Search →- Yanmar Secondary Fuel Filterfits: Yanmar 1GM, 1GM10, 2GM, 2GMF, 3GM, 3GMF, 2GM20, 2GM20F, 2GM20F-YEU, 2GM20-YEU, 3GM30, 3GM3$9.42Buy on ↗
- Yanmar Secondary Fuel Filter O-Ring 1A S-44.0fits: Yanmar Fuel Filter # 104500-55710$2.71Buy on ↗
- Yanmar Nylon Secondary Fuel Filter Housing Bleed Washerfits: Yanmar Fuel Filter # 104500-55710$1.55Search →
Lubrication (3)
Belts (3)
Anodes (4)
Anode Zinc 12 Ysm8 12 Series — Yanmar 2GM/3GM/3HM/2QM/3QM/YSB8fits: 01313$14.81Buy on ↗- Yanmar Zincfits: Yanmar 2QM20, 3QM30, 3QM30, 2GM , 3GM , 2GM20 , 2GM20-YEU, 3GM30, 3GM30-YEU, 3HM, 2QM15, Y$6.58Buy on ↗
- Yanmar Zinc Gasketfits: Yanmar 2QM20, 3QM30, 1GM, 3QM30, 1GM10, 2GM , 3GM , 2GM20 , 2GM20-YEU, 3GM30, 3GM30-YEU, 3$3.56· $5.00 ↗
- Zinc Plug Washerfits: Yanmar 2QM20, 3QM30, 3QM30, 2GM , 3GM , 2GM20 , 2GM20-YEU, 3GM30, 3GM30-YEU, 3HM, 3HM35, 2$2.42· $21.95 ↗
Electrical (3)
Starter Motor V30 — Yanmar 1GM/2GM/3GMfits: 20307$315.42Buy on ↗
Ignition Switch With A Panel — Yanmar 1GM/2GM/3GMfits: 124070-91250$137.59· $126.63 ↗
Start Switch — Yanmar 1GM/2GM/3GM/2QMfits: 124070-91300$61.39Buy on ↗
Gaskets & Seals (5)
Cylinderhead Gasket D — Yanmar 3GMfits: 128370-01332$28.58Buy on ↗
Oil Pan Gasket — Yanmar 3GM/3GM30fits: 121000-01751$19.05Buy on ↗
Exhaust Gasket — Yanmar 2GM/2YM/3GM/3HM/3YMfits: 128370-13201$12.70Buy on ↗
Gasket Kit Upper Series — Yanmar 3GMfits: 728271-221012$8.47Search →
Valve Stem Seal — Yanmar 1GM/2GM/3GM/3HMfits: 124950-11340$6.35Buy on ↗
Exhaust (5)
Exhaust Elbow — Yanmar 2GM/2YM/3GM/3HM/3YMfits: 128370-13530$481.62· $350.00 ↗- Exhaust Elbow Stainless Series — Yanmar 3GMfits: 16828$394.82Search →
- Exhaust Bend In Stainless Steel Hdi Premium Hdigml — Yanmar 2GM/3GM/3HM$281.56Search →
Exhaust Elbow In Stainless Steel Hdi Premium Hdigm — Yanmar 2GM/3GM/3HM$254.03Search →
Exhaust Valve M2 — Yanmar 1GM/2GM/3GM$28.58Search →
Engine Mechanical (6)
Mount Marked — Yanmar 2GM/2YM/3GM/3YM/3HM/3JHfits: 100-124772-08341$232.87Search →- Cylinder Liner — Yanmar 2GM/3GMfits: 121450-01100$205.34· $122.68 ↗
Piston Assy — Yanmar 1GM/2GM/2GMF/3GM/3GMF/3GMDfits: 121000-22090$150.30Search →
Connecting Rod Bearing Pair Standard Dimension Original — Yanmar 1GM/1GM10/2GM/2GM20/3GM/3GMDfits: 705311-23600$39.16Buy on ↗
Connecting Rod Bearing Pair Standard Dimension — Yanmar 1GM/1GM10/2GM/2GM20/3GM/3GMDfits: 705311-23600$31.75Buy on ↗
Inlet Valve M1 — Yanmar 1GM/2GM/3GM$28.58Search →
Part data aggregated from marine-diesel parts catalogues. As an Amazon Associate, SailPages earns from qualifying purchases.
