254-4340 Diesel Injector Nozzle supports consistent fuel atomization for B2B excavator parts repair, engine service, and wholesale sourcing.
The 254-4340 Diesel Injector Nozzle YNF18889 is supplied for compatible diesel engine fuel injection applications where controlled fuel delivery and atomization are required. Fuel is discharged through the nozzle into the combustion process, allowing diesel to be distributed in a suitable spray pattern for stable engine operation.
Because an injector nozzle works with precision internal clearances and very small fuel passages, its performance can be affected by wear, contamination, deposits, or poor fuel quality. When nozzle condition deteriorates, combustion quality, engine response, fuel consumption, exhaust smoke, and starting performance may be affected.
For B2B buyers, the 254-4340 injector nozzle should be confirmed by full part number, engine information, injector configuration, physical appearance, and existing-part photos before quantity purchasing. Accurate matching helps workshops and distributors reduce incorrect stock, unnecessary freight, and engine-repair delays.
| Parameter | Specification |
|---|---|
| YNF Part Number | YNF18889 |
| Part Number | 254-4340 |
| Product Name | Diesel Injector Nozzle |
| Alternative Name | Fuel Injector Nozzle / Injection Nozzle / Diesel Nozzle |
| Product Type | Diesel Fuel Injection Component |
| Parts Category | Engine / Fuel System Parts |
| Main Function | Fuel Delivery and Atomization |
| Fuel Type | Diesel |
| Application | Compatible Diesel Engine Fuel System |
| Installation | Fuel Injector / Engine Injection System |
| Material | Precision Metal Component |
| Fitment Check | Part Number / Engine Information / Injector Configuration / Existing Part Photo |
| Quality Type | Aftermarket Replacement |
| Condition | New |
| Brand | YNF |
| Origin | China |
| MOQ | 1 Piece |
| Shipping Method | Air, Sea, Express |
| Payment Terms | T/T, PayPal, Western Union |
| Application | Description |
|---|---|
| Diesel Fuel Injection System | Supports controlled fuel discharge in compatible engines |
| Fuel Atomization | Helps fuel be distributed into the combustion process |
| Engine Maintenance | Suitable for replacement during injector servicing |
| Engine Overhaul | Can be used during compatible diesel engine rebuilding |
| Fuel System Repair | Suitable when nozzle wear or contamination is identified |
| Construction Machinery | Applicable to compatible diesel-powered equipment |
| Repair Workshops | Practical for professional engine and injector service businesses |
| B2B Parts Stocking | Suitable for wholesalers, dealers, and machinery parts importers |
Q: What is the part number of this injector nozzle?
A: The reference part number is 254-4340.
Q: What is the YNF part number?
A: The YNF part number is YNF18889.
Q: What type of product is 254-4340?
A: It is identified as a diesel injector nozzle / fuel injection component.
YNF Machinery supplies 254-4340 diesel injector nozzles and related fuel injection components for excavator parts dealers, engine repair workshops, wholesalers, and international machinery parts importers.
The YNF18889 injector nozzle is intended for compatible diesel engine fuel delivery and atomization applications. Because nozzle components are precision parts, visually similar products should not be selected only by appearance.
Professional buyers can provide the 254-4340 part number, engine information, injector details, required quantity, and clear photos of the removed component for confirmation before purchasing.
For B2B distributors, injector nozzles can also be sourced together with complete injectors, nozzle holders, injector seals, fuel pumps, filters, and other diesel engine repair parts. This allows multiple fuel-system items to be consolidated into one inquiry and helps reduce fragmented purchasing.
