Complete Fuel System Renewal — 4-Injector Set for Yanmar 3JH2 & 4JH Series Engines

The Yanmar 3JH2 and 4JH series are among the most trusted inboard diesel engines in the marine world — and the 4TNE88 brings the same Yanmar reliability to industrial equipment. One part number (729595-53100) covers this entire engine family, making it one of the most versatile injector sets in your fuel system toolkit. When injectors wear on these engines, the symptoms are hard to ignore at sea or on the job: rough running, black smoke, and the power loss that signals combustion is no longer clean. This matched set of 4 restores factory fuel delivery across all cylinders in a single service.

✅ Direct-Fit Compatibility

• Yanmar Marine Engines: 3JH2-TCE, 4JH-HTZ, 4JH2-HTE, 4JH-DTE, 4JH-DTZA, 4JH, 4JH2
• Yanmar Industrial Engine: 4TNE88
• Bolt-on replacement — no modifications required
• Suitable for commercial and recreational marine, and industrial equipment applications

🔧 Why This Set Delivers

• OEM-matched spray pattern — precise fuel atomization for complete combustion, reduced smoke, and better fuel economy underway or under load
• 100% new aftermarket — not rebuilt or remanufactured; every injector starts with a full service life
• Matched set of 4 — uniform injection pressure across all cylinders; eliminates the power imbalance of mixing worn and new injectors
• Wide engine family coverage — one part number spans the full 3JH2 and 4JH marine series plus the 4TNE88 industrial engine
• Reliable cold-start performance — consistent opening pressure for dependable starts in cold marina mornings or early job-site conditions
• No dealer markup — OEM-equivalent quality at aftermarket pricing

📦 What's Included

• 4 × Fuel Injector (729595-53100)

🔑 Key Specs

• Part Number: 729595-53100
• Condition: 100% New Aftermarket
• Quantity: Set of 4 (full engine coverage)
• Fitment: Yanmar 3JH2-TCE / 4JH-HTZ / 4JH2-HTE / 4JH-DTE / 4JH-DTZA / 4JH / 4JH2 marine engines; Yanmar 4TNE88 industrial engine

One part number for the full Yanmar JH family — marine or industrial. Order today, in stock and ready to ship.