Single Injector Replacement — OEM-Spec Fuel Injector for Yanmar 3JH2 & 4JH Series Engines

Diagnosed the faulty cylinder on your Yanmar marine or industrial engine? This direct-fit replacement injector (729595-53100) restores precise fuel metering and spray geometry to that one cylinder — resolving rough running, smoke, and power loss without replacing the full set. One part number, confirmed fit across the full 3JH2 and 4JH marine series plus the 4TNE88 industrial engine.

✅ 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

🔧 Built for Yanmar Marine & Industrial Reliability

• OEM-matched spray pattern — precise fuel atomization for clean combustion, reduced smoke, and better fuel economy underway or under load
• 100% new aftermarket — not rebuilt or remanufactured; starts with a full service life
• 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

• 1 × Fuel Injector (729595-53100)

🔑 Key Specs

• Part Number: 729595-53100
• Condition: 100% New Aftermarket
• Quantity: 1 piece (single cylinder replacement)
• Fitment: Yanmar 3JH2-TCE / 4JH-HTZ / 4JH2-HTE / 4JH-DTE / 4JH-DTZA / 4JH / 4JH2 marine engines; Yanmar 4TNE88 industrial engine

💡 Replacing all four cylinders? Save with our 4-piece complete set for uniform performance and better value.

In stock and ready to ship. Order today and get your Yanmar back to full power — on the water or on the job.