Yanmar 4JH2E
1989–199951 HP4-cylinderdiesel
Dieselheat exchanger cooledinboard
Second-gen four-cylinder. Reliable workhorse in 36-45ft boats.
Specifications
| Power | 51 HP @ 3,000 RPM | Cylinders | 4 |
| Displacement | 1995 cc (121.7 ci) | Bore x Stroke | 84 x 90 mm |
| Fuel Type | Diesel | Aspiration | Naturally Aspirated |
| Cooling | Heat exchanger | Drive | Inboard |
| Weight | 258 kg (569 lb) | Dimensions (LxWxH) | 906 x 561 x 635 mm |
| Fuel Use | 9.56 L/hr | Oil Capacity | 6.5 L |
| Transmission | KM4A |
Parts for the Yanmar 4JH2E
66 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 (7)
Water Pump — Yanmar 3JH/4JH2/4JH3fits: 129470-42003$230.74Buy on
↗
Johnson MC97 Pump Impeller for Johnson F4B, F5B, Volvo Pump (12 Blade)$63.40Search →
Orbitrade 8-24004 Impeller Kit for Yanmar Engine Cooling Pumps$49.59Buy on ↗
Jabsco Flexible Neoprene Pump Impeller (Spline Drive / 12 Blades)$46.71Search →
CEF Neoprene Pump Impeller for Johnson F4B and F5B Pump (12 Blade)$36.04Search →- IMPELLER O-RINGfits: Yanmar 3JH2-E, 3JH2-TE, 4JH-E, 4JH-TE, 4JH-HTE, 4JH-DTE, 4JH2-E, 4JH2-TE, 4JH2-HTE, 4JH2-$3.36Buy on ↗
- Buy onGenuine Yanmar thermostat (76.5°C) for the cooling/jacket water system, fits Yanmar 4JH2E marine diesel enginefits: 129470-49800, 129795-49801 ↗
Fuel System (11)
Fuel Feed Pump Dte — Yanmar 4JHfits: 129158-52101$264.62Buy on ↗
Orbitrade 8-56542 Air Filter Insert for Yanmar 3JH & 4JH Engines$60.95Search →
Air Filter V19 — Yanmar 3JH/4JHfits: 20601$56.10Search →
Fuel Filter Series — Yanmar 4JHfits: 129574-55711$46.57Buy on ↗- AIR FILTER ELEMENTfits: Yanmar 3JH2-TE, 4JH-E, 4JH-TE, 4JH2-E, 4JH2-TE, 4JH2-HTE, 4JH2- DTE, 4JH2-UTE, 4JH3-TE / 4$37.39
· $60.82 ↗ 
Orbitrade 8-55712 Fuel Filter Spin-On Element for Yanmar Engines$29.39Buy on ↗
Fuel Filter 4Lh 4Lha V7 — Yanmar 4JH/4JH3fits: 20403$27.53Search →
Orbitrade 8-55713 Fuel Filter Element for Yanmar Diesels (30 Micron)$24.13Search →
Fuel Filter Ute B Hte Dte — Yanmar 4JH2/4JH3TEfits: 129574-55711$23.28Buy on ↗
Spin On Fuel Filter Element For Yanmar 3JH, 4JH & 4JM Marine Engines$12.85Search →
Fuel Filter V2 — Yanmar 3JH/4JHfits: 20403$10.58Search →
Lubrication (6)
Yanmar 129150-35170 Oil Filter for Yanmar TNE Series Engines$18.66Buy on ↗
Fram FT5447 Spin-On Oil Filter for Honda, Mitsubishi & Yanmar Engines$16.00Search →- OIL FILTERfits: Yanmar 4JH4-TE, 4JH4-HTE, 4JH-E, 4JH-TE, 4JH-HTE, 4JH-DTE, 4JH2-E, 4JH2-TE, 4JH2-HTE, 4JH2$10.76Buy on ↗
Oil Filter Series — Yanmar 4JHfits: 129150-35153$10.58Buy on ↗
Oil Filter — Yanmar 4JH/4JH2/4JH3/4JH4/4JH5fits: 129150-35170$9.53Buy on ↗
Crosland Marine Spin-On Oil Filter Element (Yanmar) as L10227US$5.96Search →
Belts (4)
Drive Belt Alternator — Yanmar 4JH2/4JH3fits: 25132-004600e$32.81Buy on ↗
Belt Alternator — Yanmarfits: 25132-004600$26.46Buy on ↗
Alternator Belt — Yanmarfits: 25132-004500$17.98· $17.70 ↗- V-BELT 46"fits: Yanmar 4JH4-TE (Up to 07/2006), 4JH-E, 4JH-TE, 4JH-HTE, 4JH-DTE, 4JH2-E, 4JH2-TE, 4JH2-HTE$14.30Buy on ↗
Anodes (2)
Electrical (9)
- STARTERfits: 3JH2E, 3JH2-TE, 4JH2-E, 4JH2-TE, 4JH2-HTE, 4JH2-DTE, 4JH2-UTE, 4JH3-TE, 4JH3-HTE, 4JH3-DTE$835.58Buy on ↗
Starter Motor — Yanmar 3HM/3QM30/4JHfits: 710011$602.28Search →
Starter Motor Inboards — Yanmar 3JH2/3JH3/3TNE/4JH/4JH2/4TNEfits: 560105$339.78Search →
Alternator 12V 55A — Yanmarfits: 129772-77200$256.15Buy on ↗
Starter Motor S12 77A V26 — Yanmar 3HM/3JH/4JHfits: 20307$226.52Search →
Starter Motor 3Tn 4Tn V62 — Yanmar 2YM/3JH/3YM/4JHfits: 20307$224.39Search →
Starter Motor — Yanmarfits: 129698-77010$196.88Buy on ↗
Oil Pressure Sender Switch 4Lh — Yanmar 1GM/2GM/3JH/4JHfits: 124060-39452$21.18Buy on ↗
Ignition Key 6Ly — Yanmar 2YM/3YM/3JH/4JH/6LPfits: 123482-91291$14.81Buy on ↗
Gaskets & Seals (11)
Orbitrade 60007 Gasket & O-Ring Kit for Yanmar Engines 4JH2- Series$524.70Search →
Gasketkit Series — Yanmar 4JHfits: 729470-92605$239.22Search →
Gasketkit Series — Yanmar 4JH2fits: 729573-92605$166.18Search →
Cylinderhead Gasket Series — Yanmar 4JH2fits: 129573-01351$76.22Buy on ↗- Gasket Valve Cover Ute E — Yanmar 4JH/4JH2/4JH3fits: 129550-11310$55.04Buy on ↗
Cylinderhead Gasket Series — Yanmar 4JHfits: 129553-01350$47.64Buy on ↗
Gasket — Yanmar 4JHfits: 129150-01511$38.10· $22.92 ↗
Oil Pan Gasket — Yanmar 4JHfits: 129400-01751$33.88· $26.40 ↗
Exhaust Gasket Series V52 — Yanmar 3JH/4JHfits: 20612$19.05Search →
Gasket Turbo Series — Yanmar 4JHfits: 129472-13520$14.81Search →
Gasket Exhaust Manifold Series V10 — Yanmar 4JHfits: 20612$11.63Search →
Exhaust (8)
- Mixing Elbow In Stainless Steel Hdi Premium Hdigm2 Jhb — Yanmar 3JH/4JH$760.00Search →
- Mixing Elbow In Stainless Steel Hdi Premium Hdigm2 Jhb90 — Yanmar 3JH/4JH$760.00Search →
Exhaust Elbow Stainless 80 — Yanmar 4JHfits: 16836$559.94Buy on ↗
Exhaust Elbow — Yanmar 4JH/4JH2$306.96Search →
Exhaust Elbow In Stainless Steel Hdi Premium Hdijh — Yanmar 3JH/4JH$275.21Search →
Exhaust Elbow — Yanmar 3JH2/3JH3/3JH5/4JH/4JH2/4JH3fits: 13561$190.53Buy on ↗
Exhaust Elbow 2 2 Series V30 — Yanmar 3JH/4JHfits: 20105$159.83Search →
Exhaust Elbow Stainless Steel Version — Yanmar 4JH/4JH2$7.41Search →
Service Kits (4)
Orbitrade 8-10060 Service Kit for Yanmar Engines 4JH/2/3/4 and 4JHE$166.43Search →- Service Kit E Te Hte Yansrv 34 — Yanmar 4JH$137.59Search →
Service Kit E Te Hte Yansrv 35 — Yanmar 4JH2$105.85Search →
Piston Ring Kit 3Tn 4Tn — Yanmar 3JH2/4JH2fits: 729120-22500$76.22· $52.15 ↗
Engine Mechanical (1)
Main Bearing 3Tn 4Tn — Yanmar 4JH/4JH2/4JH3/3JH/3JH2fits: 129150-02800$30.70· $49.31 ↗
Part data aggregated from marine-diesel parts catalogues. As an Amazon Associate, SailPages earns from qualifying purchases.
