Fuel Injection Pump 719621-51700 — Aftermarket Replacement for Yanmar 3TNE & 3TNA Engine Series

Restore precise, reliable fuel delivery to your Yanmar-powered compact equipment with this direct-fit aftermarket injection pump. Part number 719621-51700 covers a wide range of Yanmar 3-cylinder diesel engines across the 3TNE and 3TNA series — making it one of the most versatile replacement pumps available for Yanmar-powered compact construction, agricultural, and industrial machinery.

100% new, not rebuilt. OEM-equivalent engineering. Bolt-on fit with no modifications required.

Why This Pump?

• Broad Yanmar Engine Coverage — One part number fits 9 engine variants across the 3TNE and 3TNA families
• OEM-Spec Fuel Metering — Precise injection timing and pressure for peak engine efficiency and power output
• Consistent Performance Under Load — Stable fuel delivery during continuous-duty compact equipment operation
• Reliable Cold-Start Performance — Dependable ignition in low-temperature jobsite and field conditions
• Direct Bolt-On Fit — Engineered for the Yanmar 3TNE/3TNA engine family; no modifications required
• 100% New — Not Rebuilt — Full service life from installation day one
• Cost-Effective Alternative — OEM-equivalent performance without dealer pricing

Compatible Engines

Make: Yanmar

• 3TNE68
• 3TNE68C
• 3TNE68L
• 3TNE74
• 3TNE74C
• 3TN66E
• 3TN66L
• 3TNA68L
• 3TNA72E

Applications: Compact excavators, skid steers, forklifts, generators, agricultural and industrial equipment

Part Details

• Part Number: 719621-51700
• Quantity: 1 x Fuel Injection Pump
• Condition: 100% New Aftermarket

Yanmar’s 3TNE and 3TNA engine series power some of the most widely used compact equipment on the market. A worn or failing injection pump causes hard starts, rough running, and lost productivity. This direct-fit replacement gets your machine back to full performance — fast.