Suitable for SD22 Bulldozer 4307516/3411760 Fuel Injector, QSN Engine Parts High Quality SD22 Fuel Injector Assembly 4914308 For kangmingsi Engine

Function

1. Atomizes high-pressure diesel into fine droplets for full combustion.
2. Controls injection timing, volume and pressure accurately.
3. Seals the combustion chamber and prevents gas backflow.
4. Improves combustion efficiency, reduces smoke and fuel consumption.
5. Protects engine from carbon deposits, abnormal noise and cylinder damage.

   Usage & Maintenance

    
6. Use clean, standard diesel fuel.
7. Replace fuel filter regularly to avoid impurities.
8. Avoid prolonged idling to prevent carbon buildup.
9. Do not rev the engine violently during cold start.
10. Inspect and service injectors if power drops, smoke occurs or fuel consumption increases.
11. Install genuine/spec-matched nozzles with correct torque.
12. Replace worn injectors in time to avoid engine damage.
     

SD22 Bulldozer Fuel Injector - Detailed Specification Sheet

Item	Details
Product Name	SD22 Bulldozer Fuel Injector Assembly
Applicable Model	Shantui SD22 Bulldozer
Compatible Engine	NT855 / N14 / QSN Series Engine
Common OEM Numbers	4307516, 3411760, 4914308, 3087807, 4384360
Injector Type	Mechanical / Electronic Diesel Fuel Injector Assembly
Working Pressure	Standard Injection Pressure: 20700–24100 kPa
Nozzle Hole Quantity	Multi-hole precision atomizing nozzle
Atomization Method	High-pressure atomization with uniform fuel atomization
Sealing Type	Precision cone seal + O-ring seal
Material & Craft	High-strength alloy valve body, precision machining, wear & corrosion resistant
Applicable Fuel	0# Diesel, National V / National VI Standard Diesel
Installation Type	Direct OEM replacement, no modification required
Operating Temperature	-40℃ ~ +120℃
Product Features	Precise injection, good atomization, smooth start, stable power, low fuel consumption
Application Conditions	Mines, construction sites, infrastructure, earthwork projects, equipment overhaul & maintenance
Warranty Period	12 Months Warranty
Packaging	Independent carton + shockproof packaging
Delivery Status	In stock, can be shipped on the same day