Exhaust gas recirculation: 4 reasons why you should rely on EGR valves from HELLA

Vehicle-specific EGR systems from HELLA


Exhaust gas recirculation (EGR) plays a crucial role in optimising engine efficiency and reducing harmful emissions. As a result, exhaust gas recirculation has long since become an indispensable part of maintenance and repair work in the vehicle workshop. 


  • Efficiency: Lower emissions, improved engine efficiency and therefore lower fuel consumption


  • Reliable performance: Our EGR valves offer high performance that will satisfy your customers and simplify your day-to-day workshop work


  • OE know-how: Benefit from our OE expertise in electronics, which we consistently transfer to the independent aftermarket


  • Quick installation: Easy to install thanks to step-by-step installation instructions that make installing the EGR system a straight forward process

How does the EGR valve work?

As environmental emission standards reach higher peaks, the way that we recirculate engine exhaust gases becomes even more important in achieving the smallest amount of harmful NOx emissions, to meet all the new regulations. Due to this reason, the vehicles became more and more complex and EGR valves become an indispensable part of maintenance and repair work.


This is how the EGR valve works:


  • After exiting the cylinders, part of the exhaust gases are by-passed through the EGR to mix with fresh air from the intake manifold before entering the engine cylinders.


  • The timing and the actual exhaust gas quantity are precisely controlled via the EGR valve


  • This reduces the oxygen content in the fuel-air mixture and thus lowers the combustion temperature in the cylinders


  • This significantly reduces the concentration of harmful nitrogen oxides in the exhaust gas and also minimises the formation of soot particles, mainly relevant in diesel engines
How does the EGR valve work?

When does the EGR valve need to be replaced?

When does the EGR valve need to be replaced?

Excess carbon deposits might lead to the need of replacing the EGR valve. 
In addition, EGR’s operated with system leaks, used with a lack of negative pressure or a missing power supply can lead to malfunctions.


It is advisable to replace The EGR valve at the first sign of a malfunction in order to avoid expensive replacement parts and time-consuming repairs. Using a stuck EGR valve, whether in an open or closed position, can affect the service life of components directly connected to the exhaust gas recirculation system. In some situations, inadequate exhaust gas recirculation can even lead to irreparable engine damage.


Save your customers from expensive repairs and rely on EGR systems from HELLA!

What HELLA offers

With EGR valves from HELLA, you benefit from reliable quality, quick and easy installation and maximum fitting accuracy. The product range covers a broad spectrum of applications.


The product range is being continuously developed. All products are supplied with installation instructions to prevent incorrect installation and possible related damage.

What HELLA offers


Vehicle-specific spare parts

Our online catalogue is all about making it easy to find parts. This means that you can, for example, enter the relevant vehicle by using our comprehensive manufacturer list, the type designation or the engine code.

And as an added extra, we provide all key product information, such as

  • part numbers,
  • installation instructions,
  • safety data sheets and
  • OE numbers

all at the same time.

Vehicle-specific spare parts

Universal parts - spare parts that are not vehicle specific

Universal parts - spare parts that are not vehicle specific

The universal parts catalogue allows you to search specifically for products that are not vehicle specific, from the areas of Lighting and Electrics/Electronics.

The focus is placed on the following target groups:

  • Trucks,
  • Trailers,
  • Agricultural vehicles/construction equipment and
  • Buses/caravans.
Universal parts catalogue

Brief information as PDF download

Brief information as PDF download

Information on various products in one database.

Brief information

Technical product information

Technical product information

In this database, you will find technical information about our products and specific vehicle systems – prepared by experienced technicians and mechanics.

Technical product information
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