Ford Focus Mk3 Exhaust Gas Cooler EGR Valve 1.5 TDCI Diesel FM5Q-9U433-AA

Ford Focus Mk3 EGR Valve Exhaust Cooler 1.5 TDCI Diesel FM5Q-9U433-AA is an exhaust gas recirculation system component designed for diesel engines, supporting proper engine operation and reducing exhaust emissions. Thanks to its factory Ford design, the valve with exhaust cooler ensures proper cooling of gases before they are reintroduced into the intake manifold. This solution helps maintain stable engine operating parameters and supports compliance with emission standards.

Specifications and technical data

• SKU: 1891365
• Mark: Ford
• Condition: Used
• OEM Part Number: 1891365
• Substitutable numbers: 1891365, FM5Q-9U433-AA, FM5Q9U433AA
• Fuel type: Diesel
• Category: EGR Parts & Valves

Purpose and Function in the EGR System

The presented component belongs to the EGR Valves and Parts category and is used in 1.5 TDCI diesel engines fitted in the Ford Focus Mk3. The EGR valve integrated with the exhaust cooler is responsible for the controlled redirection of a portion of exhaust gases back into the intake system and their prior cooling. This solution:

• lowers combustion temperature in the cylinders,
• reduces the formation of nitrogen oxides (NOx),
• supports smooth, steady operation of the diesel engine,
• lessens the load on other exhaust system components.

Construction and Fit for Ford Focus Mk3

The EGR Valve with Exhaust Cooler has been specifically designed for the 1.5 TDCI engine architecture in the Ford Focus Mk3, ensuring correct positioning of ports, mounting points, and connections. This allows for an organized installation process without the need for modifications to the system or the fabrication of adapters. The appropriately designed geometry of the flow channels in the exhaust cooler ensures stable gas cooling, and the integrated valve allows for precise control over the amount of recirculated exhaust gases.

Benefits of Using an Original Ford Part

Choosing a component from the Ford range allows for the preservation of factory EGR system operating parameters and compatibility with the engine control unit software. Key advantages include:

• factory fit for the 1.5 TDCI diesel engine in the Focus Mk3,
• proper cooperation with exhaust temperature and flow sensors,
• stable recirculation system operation across the full load range,
• reduced risk of diagnostic errors related to improper EGR function.

By maintaining the original design, it is possible to preserve proper combustion parameters, which translates to engine running smoothness and potentially lower fuel consumption under typical operating conditions.

Characteristics of a Used Component

The offered EGR valve with exhaust cooler is a used part, sourced from disassembly. This type of component is a good choice for users seeking a solution with a favorable cost-to-functionality ratio, while maintaining a design consistent with the original Ford project. When installing, it is recommended to:

• thoroughly clean the intake and exhaust channels at the contact points,
• replace gaskets with new ones, in accordance with manufacturer recommendations,
• verify the correct operation of the EGR control system after starting the engine.

Related Products and Technical Knowledge

If you are looking for other Ford EGR Valves and Parts for your car, check out the Ford EGR Valves and Parts available in our store to select components that match your specific engine version and vehicle year.

When working with engine ancillary systems, it is beneficial to be aware of common issues and best service practices. In terms of maintaining the longevity of diesel and gasoline engines, an article describing the operation of popular premium class models may be helpful – check out the guide on the reliability and maintenance of Mercedes C-Class and E-Class engines to better understand the impact of regular servicing on the lifespan of timing components, injectors, and associated parts.

If you are considering the choice between a used part and a new aftermarket replacement, comparing costs and durability may be helpful – see the analysis of new and used car parts, which discusses differences in quality, cost-effectiveness, and typical application scenarios.

Summary

The Ford Focus Mk3 EGR Valve Exhaust Cooler 1.5 TDCI Diesel FM5Q-9U433-AA is a factory-designed exhaust gas recirculation system component for diesel engines, combining the function of controlling exhaust flow with its effective cooling. Using the original Ford design allows for the preservation of proper engine operating parameters, reduction of exhaust emissions, and maintenance of correct interaction with the vehicle's electronics, making this component a rational choice for repairing the EGR system in a Focus Mk3 diesel.