Repaired EGR Exchanger Opel 1.6 CDTi

The component identified by the original code 55487874 è a heat exchanger for the EGR system, used in Opel diesel engines equipped with exhaust gas recirculation system. This device is responsible for cooling the exhaust gases before they are reintroduced into the intake manifold, thereby reducingì the combustion temperature and contributing to the reduction of nitrogen oxide (NOₓ) emissions.

Technical specifications

The OE EGR exchanger 55487874 è made of high-temperature resistant stainless steel and resistant to chemical corrosion. Internally è equipped with a tube bundle or microchannel structure that allows heat exchange between the exhaust gases and the engine cooling circuit.

The module canò be integrated or paired with the electronic EGR valve, depending on the vehicle and the installed configuration. È designed to operate continuously, with precise thermal management through sensors and by-pass valve control in the latest models.ù recent.

DIPA canò intervene to revise these modules thanks to its experience and expertise.

Functionalityà

The EGR cooler has the task of:

• Reducing the temperature of the exhaust gases before their reintroduction into the intake manifold’.
• Improving the’efficiency of the EGR system and combustion
• Contributing to the reduction of NOₓ emissions, particularly during low and medium load driving cycles
• Protecting the EGR valve and the manifold from excessive thermal stress

Brand and model on which the part è is installed

Opel

• Astra
• Astra Pickup
• Astra Van / Mixed Use
• Astra GTC
• Astra Sports Tourer
• Insignia
• Insignia Country Tourer
• Insignia Sports Tourer
• Meriva MPV / Space Wagon
• Mokka / Mokka X
• Zafira Tourer

DIPA recommends to always check compatibilityà of the spare part before’purchase.

Defects and causes

• Internal obstruction due to accumulation of particulate, soot, or crystallized residues
• Coolant leaks due to cracks in the structure or deteriorated seals
• Noises or vibrations caused by turbulence in the gas flow
• Malfunction of the EGR valve if the exchanger è is blocked, resulting in power drops or frequent DPF regenerations

Final conclusions

The EGR exchanger for Opel with OE code 55487874 è is an essential component to ensure the proper functioning of the pollution control system on diesel engines 1.6 CDTi Opel. Its efficiency in cooling exhaust gases helps reduce harmful emissions and keep combustion temperatures under control.

DIPA offers a wide range of spare parts: from original ones to aftermarket parts selected from the best manufacturers on the market. Not only that: it also offers refurbished components with performance equal to new, allowing for savings on replacements and contributing to the protection of the’environment thanks to’circular economy. If the spare part that suits you is not è available, don't worry: DIPA può to review “on demand” your part by restoring its full functionalityà and safety in a short time.