Mercedes W169 W245 OM640 Fuel Injector A6400700787

The Mercedes W169 W245 OM640 Fuel Injector is an original fuel system component designed for Mercedes diesel engines from the OM640 family. A used injector nozzle allows for the restoration of correct fuel delivery, stable engine operation, and proper running characteristics at idle and under load.

Specifications and technical data

• SKU: A6400700787
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6400700787
• Substitutable numbers: A6400700787, A 640 070 07 87
• Location on the vehicle: Front
• Category: Fuel Injectors

Injector Purpose and Function

The injector nozzle in the OM640 engine is responsible for precisely atomizing fuel in the combustion chamber, which is crucial for performance, fuel consumption, and exhaust emissions. A properly functioning injector ensures:

• stable engine operation across the entire RPM range,
• even mixture combustion and reduced smoke,
• better throttle response and smoother acceleration,
• reduced load on other fuel system components.

This component is particularly important in modern diesel engines, where the injection system operates under high pressure and requires precise spray pattern parameters.

Compatibility with Mercedes W169 and W245

The fuel injector for Mercedes W169 and W245 is designed for the OM640 engine, guaranteeing proper fitment with the cylinder head, fuel rail, and engine control unit. This allows for the preservation of the engine's factory operating characteristics without the need for installation modifications.

The component's placement in the front of the vehicle (in the engine bay) facilitates service access and replacement as part of standard maintenance procedures.

Characteristics of the Used Injector Nozzle

The offered Mercedes injector nozzle is a used part, intended for users seeking a cost-effective solution while maintaining the original manufacturer's specifications. A used component allows for:

• reduced repair costs compared to a new injector,
• compliance with the factory fuel system,
• easier diagnostics for further service work.

Prior to installation, it is recommended to perform a standard inspection and, if necessary, adaptation of the injector according to the vehicle manufacturer's and diagnostic equipment's recommendations.

Benefits of Replacing the Fuel Injector

Replacing a worn injector nozzle with a functional component in the OM640 engine can yield significant operational benefits:

• reduced rough idling and engine vibrations,
• decreased fuel consumption due to improved atomization quality,
• reduced exhaust smoke and unpleasant exhaust odor,
• lower risk of piston and valve damage resulting from improper injection.

To better understand the symptoms of worn fuel system components, it is advisable to consult the guide: diesel injector faults – symptoms, consequences, and diagnostics, which discusses typical signs and the repercussions of neglecting this part.

Mercedes Injector Nozzles – Selection and Other Products

If you are looking for other Mercedes injector nozzles compatible with different models and engine variants, please check our dedicated category: Mercedes injector nozzles. There you will find a wide selection of fuel injection system components, making it easier to choose the right part for your specific vehicle configuration.

Summary

The Mercedes W169 W245 OM640 Fuel Injector is a used injector nozzle from the fuel system category, designed for installation in the front of the vehicle, within the engine bay. Choosing an original part allows for the maintenance of proper engine operating parameters, improved running smoothness, and reduced risk of more serious failures resulting from incorrect fuel delivery.