Yanmar 3HM
1980–198330 HP3-cylinderdiesel
Dieselheat exchanger cooledinboard
Higher-output three-cylinder with freshwater cooling. For 32-38ft boats.
Specifications
| Power | 30 HP @ 3,600 RPM | Cylinders | 3 |
| Displacement | 953 cc (58.2 ci) | Bore x Stroke | 75 x 72 mm |
| Fuel Type | Diesel | Aspiration | Naturally Aspirated |
| Cooling | Heat exchanger | Drive | Inboard |
| Weight | 140 kg (309 lb) | Dimensions (LxWxH) | 786 x 485 x 617 mm |
| Fuel Use | 5.62 L/hr | Oil Capacity | 2.6 L |
| Transmission | KM3 |
Parts for the Yanmar 3HM
42 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)
Raw Water Pump — Yanmar 2GM/3GMfits: 728270-42002$358.83Buy on
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Sea Water Pump — Yanmar 2GMF/2GM20F/3GMF/3HM/3HMF/3GM30Ffits: 721575-42702$256.15Buy on ↗
Circulation Water Pump V54 — Yanmar 2GM/3GM/3HMfits: 20113$165.12Search →- IMPELLERfits: Yanmar 2QM20, 3QM30, 3QM30, 2GMF, 3GMF, 2GM20F, 3GM30F, 3HM, 3HMF, 3HM35, 3HM35F, 2QM$55.76Buy on ↗
Johnson MC97 Pump Impeller 09-1026B for Johnson F4/F5 Pumps (6 Blade)$47.64Buy on ↗
Orbitrade 8-24003 Impeller Kit for Yanmar Engine Cooling Pumps$41.83Buy on ↗
CEF Impeller for Johnson F4B & F5B Pumps (Neoprene)$27.22Search →
Belt Sea Water Pump Ysm V12 — Yanmar 2GM/3GM/2YM/3HMfits: 20603$14.81Search →- IMPELLER GASKETfits: Yanmar 2QM20, 3QM30, 3QM30, 2GMF, 3GMF, 2GM20F, 3GM30F, 3HM, 3HMF, 3HM35, 3HM35F, 2QM$4.46Buy on ↗
Fuel System (7)
- Yanmar Air Filter ( Intake Element )fits: Yanmar 2QM20, 3QM30, 3QM30, 3HM, 3HMF, 3HM35, 3HM35F, 2QM15, 2QM, 3QM$35.06Buy on ↗
Air Filter — Yanmar 2QM15/2QM20/3QM30/2QM/3QM/3HMfits: 124770-12540$25.40Buy on ↗
Fuel Filter M1 — Yanmar 1GM/2GM/2QM/2YM/3GM/3HM$17.98Search →
Orbitrade 8-55710 Fuel Filter Element for Yanmar Diesel Engines$15.80Buy on ↗- 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)
Orbitrade 8-35113 Spin On Oil Filter Element for Yanmar Engines$17.46Search →- Yanmar Oil Filterfits: Yanmar 2QM20, 3QM30, 3QM30, 3HM, 3HMF, 3HM35, 3HM35F, 2QM, 3QM$10.92
· $15.43 ↗ 
Oil Filter Hm Qm Series — Yanmar 3HM/3QM/2QMfits: 124550-35110$9.53Search →
Belts (3)
Anodes (7)
Orbitrade 8-20030 Zinc Anode for Yanmar Engines$21.89Search →
Zinc Pencil Engine Anode for Yanmar (M8 Thread)$20.78Search →
Anode Zinc 12 Ysm8 12 Series — Yanmar 2GM/3GM/3HM/2QM/3QM/YSB8fits: 01313$14.81Search →
Zinc Pencil Engine Anode for Yanmar YS (M8 Thread)$6.63Search →- 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 (2)
Gaskets & Seals (5)
Cylinderhead Gasket — Yanmar 3HMfits: 121575-01334$99.50Search →
Gasket Exhaust Manifold — Yanmar 3HM/3HM35fits: 121550-13521$23.28Buy on ↗- Gasket Kit Upper Series — Yanmar 3HMfits: 728374-221014$15.88Search →
Exhaust Gasket — Yanmar 2GM/2YM/3GM/3HM/3YMfits: 128370-13201$12.70Buy on ↗
Valve Stem Seal — Yanmar 1GM/2GM/3GM/3HMfits: 124950-11340$6.35Buy on ↗
Exhaust (3)
Exhaust Elbow — Yanmar 2GM/2YM/3GM/3HM/3YMfits: 128370-13530$481.62· $350.00 ↗- 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 →
Engine Mechanical (2)
Other Parts (1)
Orbitrade 8-4200 Engine Cooling Pump for Yanmar Engines$506.70Search →
Part data aggregated from marine-diesel parts catalogues. As an Amazon Associate, SailPages earns from qualifying purchases.