2-Pack Fuel Injectors for Yanmar 4TNE / 4TNE92 Engine & Hyundai Forklifts — 129901-53001

The Yanmar 4TNE and 4TNE92 are compact diesel engines widely used in Hyundai's HDF-series forklifts — workhorses in warehouses, distribution centers, and industrial facilities where uptime is everything. When injectors wear or fail, you'll notice rough idle, hard starts, loss of lifting power, and increased fuel consumption. This 2-piece aftermarket injector set covers both cylinders in a single order, ensuring uniform fuel delivery across the entire engine and eliminating the risk of cascading failures from remaining worn injectors. Brand new, direct-fit, and ready to install.

Why Replace Both Injectors at Once?

On a 2-cylinder engine like the Yanmar 4TNE92, replacing only the failed injector leaves the other at a similar wear stage. Uneven fuel delivery causes rough running, increased thermal stress, and accelerated wear on the injection pump. A full 2-pack replacement restores balanced combustion across both cylinders, maximizes the value of your service interval, and keeps your forklift productive on the floor.

Compatible Yanmar Engines

• Yanmar 4TNE
• Yanmar 4TNE92
• Yanmar 2V78

Compatible Hyundai Forklifts

• Hyundai HDF20-5
• Hyundai HDF25-5
• Hyundai HDF30-5

Part Number

• 129901-53001

What's Included

• 2 × Fuel Injectors (129901-53001)

Key Specs

• ✅ 100% Brand New Aftermarket — Not rebuilt or refurbished
• ✅ OEM-Spec Fuel Atomization — Precise spray pattern for clean, efficient combustion
• ✅ Direct Drop-In Fit — No modifications required; installs like the original
• ✅ Complete 2-Cylinder Set — Full engine coverage for the Yanmar 4TNE92 2-cylinder
• ✅ Prevents Cascading Failures — Eliminates future unplanned downtime from remaining worn injectors
• ✅ Forklift-Grade Reliability — Built for the high-cycle demands of warehouse and industrial forklift applications

Please verify your engine serial number and existing part number before ordering. Contact us for fitment confirmation if needed.