Cummins K19 series PT fuel injector assembly 4384360 Series is the core fuel injection nozzle for Cummins K19, KTA19 diesel engines in PT fuel system. It controls fuel metering and high-pressure atomization, directly determines engine power output, fuel consumption and exhaust emission, widely used in mining machinery, marine power, generator sets and construction equipment.

Part numbers in this series:
4384360, 3077760, 3076132

Fits: Cummins K19, KTA19 Diesel Engine
Position: PT fuel system injector assembly

What you are ordering
Price is per PT fuel injector assembly. All part numbers are separate variants, please select the correct PN from variant options. These injectors are not interchangeable. Different part numbers have different spray holes, flow rate and calibration specifications. Wrong selection will cause poor atomization, black smoke, power loss and engine failure.

Specifications
Type: PT Fuel Injector Assembly with Nozzle
Material: High alloy steel, precision grinding
Feature: High pressure resistance, stable fuel delivery, uniform atomization
Package: Neutral packing or wooden case

When to replace
Replace the PT injector when you see heavy black smoke, weak power, hard starting, unstable idle speed, fuel leakage or poor spray pattern.

Fitting notes
Strictly confirm part number before ordering. Clean fuel system thoroughly before installation. Professional bench calibration is required after replacement. Follow Cummins service manual for assembly and testing. If you are not sure which injector matches your engine, send us engine serial number for confirmation.

Warranty and shipping
Covered by a 12-month warranty against manufacturing defects. Orders are dispatched within 3–7 business days; DHL / FedEx delivery takes 5–10 business days. Tracking number is sent as soon as the parcel leaves our warehouse.

Note: manufacturer names and part numbers are used for identification and cross-referencing only. We are an independent aftermarket supplier and are not affiliated with, or authorised by, the original manufacturer. Please verify the part number against your engine's parts catalogue before ordering — our team is happy to help if you send us your engine model or serial number.