When diagnostics point to a single failed injector nozzle on your Yanmar or Komatsu compact diesel, this direct-fit aftermarket replacement gets you back up and running fast. Precision-matched for the Yanmar 3TNE68C, 3TNA72C, 3TNE74, and 3TNV76 engines — and their Komatsu equivalents, the 3D68E-3 and 3D74E-3 — this brand-new nozzle restores OEM-spec fuel atomization and combustion performance to the affected cylinder. No modifications, no guesswork.

✅ Direct-Fit Compatibility

• Yanmar Engines: 3TNE68C, 3TNA72C, 3TNE74, 3TNV76
• Komatsu Engines: 3D68E-3, 3D74E-3
• Suitable for mini excavators, compact tractors, forklifts, and utility equipment
• Bolt-on replacement — no modifications required

🔧 Product Highlights

• 100% Brand New Aftermarket: Not rebuilt or refurbished — starts with a full service life
• OEM-Spec Fuel Atomization: Precise spray pattern for clean combustion, reduced smoke, and better fuel economy
• Targeted Single-Unit Replacement: Ideal when diagnostics confirm one failed nozzle — no need to replace the full set
• Dual-Brand Coverage: One part number fits both Yanmar and Komatsu versions of the same engine family
• Protects Downstream Components: Restores proper fuel pressure to reduce stress on the injection pump and remaining nozzles
• No Dealer Markup: OEM-equivalent quality at aftermarket pricing

📦 What's Included

• 1 × Fuel Injection Nozzle (719620-53700)

🔑 Key Specs

• Part Number: 719620-53700
• Condition: 100% New Aftermarket
• Quantity: 1 piece (single cylinder replacement)
• Fitment: Yanmar 3TNE68C / 3TNA72C / 3TNE74 / 3TNV76 & Komatsu 3D68E-3 / 3D74E-3

Replacing all three nozzles? Our 3-pack set offers complete engine coverage at a lower cost-per-nozzle. Please verify your engine serial number and existing part number before ordering. Contact us for fitment confirmation if needed.