EGR cooler A6421400775

Description

EGR cooler by MERCEDES, catalog number A6421400775. Confirmed catalog fitment: Mercedes-Benz C-Class S203 (2001–2007), Mercedes-Benz C-Class W203 (2000–2007), Mercedes-Benz CLK A209 (2003+), Mercedes-Benz CLK C209 (2002–2009), Mercedes-Benz CLS C219 (2004+) and other body variants. For an accurate match, compare the number and identification with the removed part and confirm the vehicle specification by VIN. The fitment list is a reference and does not replace a vehicle-specific compatibility check.

EGR COOLER / EGR RADIATOR

An EGR cooler (EGR radiator) is a component of the exhaust gas recirculation system designed to cool exhaust gases before they are redirected into the intake manifold. Lower exhaust gas temperature reduces nitrogen oxide (NOx) emissions and improves engine environmental performance.

The EGR cooler is installed between the exhaust manifold and the EGR valve and works together with the engine cooling system, EGR valve, temperature sensors, and engine control unit.

A faulty EGR cooler may cause coolant leaks, white exhaust smoke, unexplained coolant loss, EGR system fault codes, unstable engine operation, or overheating.

Our catalog includes EGR coolers for many vehicle brands. Available options include genuine factory EGR system components, reliable aftermarket replacements, and tested used coolers without cracks or internal damage. Solutions for both petrol and diesel engines across different generations are available.

Used parts are inspected for sealing integrity, absence of cracks, corrosion, burn-through, and internal leakage.

Selection is available by VIN number, engine code, part number, and vehicle year. Replacing a faulty EGR cooler restores proper exhaust recirculation and engine temperature management.

Compatibility

Fits 11 vehicles

Nothing found

Which car this part came from

Photos, VIN and details of the donor car.

Mercedes-Benz E-Class (W211) 2002
Mercedes-Benz E-Class (W211) 2002 Being dismantled
VIN
WDB2110221A854915
Make
Mercedes-Benz
Model
E-Class
Body
W211
Body type
sedan
Year
2002
Engine
3 L · diesel · OM642
Gearbox
automatic
Drive
rear-wheel
Colour
silver
Mileage
325 000 km
All parts from this car (186)

About the manufacturer · MERCEDES

Mercedes‑Benz is a German premium automotive brand and one of the oldest automobile manufacturers in the world, with its history dating back to 1886 when Karl Benz created the first gasoline‑powered automobile. Today the...

Mercedes‑Benz is a German premium automotive brand and one of the oldest automobile manufacturers in the world, with its history dating back to 1886 when Karl Benz created the first gasoline‑powered automobile. Today the brand is part of Mercedes‑Benz Group and is recognized globally as a leading manufacturer of passenger cars, commercial vehicles and genuine automotive spare parts. Under the Mercedes‑Benz brand a wide range of original components is produced for the company’s vehicles, including engine parts, cooling system components, suspension elements, braking systems, transmission components, electronic modules, body parts and various maintenance and service items. Genuine Mercedes‑Benz parts are designed according to strict factory engineering standards and undergo comprehensive quality control throughout the production process. This ensures precise fitment, reliable performance and full compatibility with the vehicles they are intended for. According to feedback from car owners and automotive repair professionals, Mercedes‑Benz genuine parts are highly regarded for their excellent build quality, long service life and dependable operation even under demanding driving conditions. Many users also highlight the perfect fit and ease of installation of original components. The most frequently mentioned drawback is the relatively high price compared with many aftermarket alternatives, although many vehicle owners consider the cost justified due to the durability, safety and preservation of the vehicle’s original factory performance.

Additional information

EGR cooler by MERCEDES, catalog number A6421400775, is listed for vehicle repair or maintenance. The catalog identifies the item as “EGR cooler”. Confirmed catalog fitment: Mercedes-Benz C-Class S203 (2001–2007), Mercedes-Benz C-Class W203 (2000–2007), Mercedes-Benz CLK A209 (2003+), Mercedes-Benz CLK C209 (2002–2009), Mercedes-Benz CLS C219 (2004+), Mercedes-Benz E-Class S211 (2003–2009) and other body variants. Fitment is based on the catalog links between the part and vehicle bodies. It helps narrow the search, but final compatibility must be confirmed for the exact vehicle specification. The primary ordering references are part number A6421400775 and manufacturer MERCEDES. Parts can differ within the same vehicle model by production year, engine, transmission, installation side, or position. Before purchase, compare the number and identification with the removed component and verify body, year, and specification by VIN. Also compare appearance, connectors, mountings, dimensions, and included items whenever those details are relevant to this part.

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