4307779 Common Rail Injector Nozzle For Cumm-Ins N14 QSN14 Engine
4307779 Common Rail Injector for Cumm-ins N14 QSN14 Engine
4307779 is an original Cumm-ins common rail injector for N14/QSN14 14L heavy-duty diesel engines. Built with high-strength alloy steel and precision CNC machining, it supports 1600bar max pressure and 240–260bar opening pressure, meeting Cumm-ins OEM specs. It replaces 3087807/4307776 directly, matching the electronic common rail pump perfectly. Delivers precise fuel metering and ultra-fine atomization, eliminating hard starting, power loss, black smoke, and high fuel consumption in heavy trucks and mining equipment. 100% factory tested for flow, spray pattern, and leakage; it is a reliable OEM replacement for Cumm-ins engine maintenance.
| Product Name: | Injector |
| Model No.: | 4307779 |
| Plunger: | Integrated in Cumm-ins N14 common rail pump |
| Injector: | 4307779,3087807,4307776 |
| Pump: | Cumm-ins N14/QSN14 |
| Engine No: | Cumm-ins N14/QSN14 |
| MOQ: | 12 pcs |
| Net Weight: | 2 KG / PC |
| Packaging Details: | BAT |
| Warranty: | 6 months |
| Delivery Time: | 3-5 Working Days |
| Shipping Way: | FedEx / DHL / UPS |
| Export Market: | Central and South America , Southeast Asia , Africa , Asia , North America etc. |
Frequently Asked Questions
1. Fitting engine?
Cumm-ins N14/QSN14 14L heavy-duty engine
2. Compatible injectors?
3087807, 4307776, 4307779
3. Matching fuel pump?
Cumm-ins N14/QSN14 electronic common rail pump
Certification & Exhibition
Shipping Information
Delivery Time: 3-5 working days for samples; 5-14 working days for bulk orders
Door-to-Door FedEx service for samples
Air or Sea freight for bulk orders
Flexible shipping methods and freight forwarder options available
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