Check the condition, warranty, core deposit and key product details.
Compare these markings with the number on your existing part.
Check the vehicles and engine variants listed for this part.
Mercedes-Benz3 models in this listing4 variantsCannot see your model? , and we will help you find the right part.
Find out about the product, its condition and preparation.
High-pressure fuel pump DELPHI DFP3 R9421A000A MERCEDES 2.2 136 hp 170 hp
Product details
Cross-reference numbers:
R9421A000A, 9421A000A, 002002000017R, 5050100203493, 6460700201, 9421A030A, A6460700201, R9421A030A
Compare the complete number on the old part with the numbers in this listing before ordering.
Browse similar parts available at TecNorma.
Check compatibility before purchase
The most reliable way to identify a part is by its complete part number. You can also send the seller your VIN and vehicle details. The vehicle model or engine capacity alone may not identify the correct variant.
This listing includes 4 vehicle and engine applications.
Outright purchase
The displayed product price covers the complete replacement part. You do not need to return your old unit.
Diagnosis and possible symptoms
The injection pump supplies the fuel pressure required by the engine. Difficult starting, stalling, loss of power or pressure-related fault codes can be caused by the pump or other parts of the system. Check the fuel supply, filter, lines, electrical connections and system cleanliness before replacing the pump.
Remanufacturing
Remanufacturing includes initial inspection, dismantling, cleaning and assessment of the components. Worn components are replaced as required, and the pump is assembled and calibrated. Operation and leak tightness are then checked on a test bench suitable for the pump type.
Remanufactured car part in Common Rail pumps. Delphi R9421A000A. Selected applications: Mercedes-Benz C-CLASS Sedan, Mercedes-Benz E-CLASS Kombi, Mercedes-Benz E-CLASS Sedan.
You have 14 days from delivery to return the product. Before fitting it, unpack the part carefully and compare its numbers and connectors with the existing unit.
Answers to common questions before purchase and installation.
Compare the manufacturer's number on the old pump with the listing. The VIN, engine code and a photo of the identification plate help confirm the correct version.
This depends on the vehicle's system. The workshop should check the manufacturer's installation, diagnostic and post-replacement procedures. There is no single procedure for every pump.
Identify why the previous pump failed, check fuel cleanliness and replace the filter according to the manufacturer's instructions. Fitting another part will not remove contamination from the system.
Do not fit the pump into a contaminated system. The workshop should assess, clean or replace affected components and check the injectors according to the manufacturer's procedure.
Yes, especially if the previous pump suffered mechanical failure or there were metal particles in the fuel. A workshop should assess the injectors and other components before starting the engine.
Yes. Filling and bleeding procedures depend on the vehicle. A workshop should perform the initial start according to the manufacturer's instructions without running the pump dry.
Yes. The displayed product price covers the complete replacement part. You do not need to send us your old unit.
The warranty period and contents of the specific listing are shown on the product page. Check them before buying and keep your purchase document and work records after installation.
Available carriers, delivery times and prices are shown at checkout for your delivery address. Import charges are payable on arrival (DAP).
Selected reviews of TecNorma from eBay and Allegro. They concern different purchases, not only this product.
I am very satisfied.Recommended
Excellent communication, very helpful indeed. Item as described.Learn about TecNorma, our specialist parts and delivery destinations.
Operating under various brands since 1998
TecNorma specialises in professionally remanufactured car parts. Our range focuses on Common Rail high-pressure pumps, Bosch VP30 and VP44 injection pumps, diesel injectors, turbochargers, alternators and starter motors. Components are carefully tested and supplied ready for installation. We can help identify the right part using its OE reference, part number, VIN or vehicle details. We offer international shipping, including to the European Union, United Kingdom, United States, Canada and other international markets.
TecNorma — reliable car parts and customer support worldwide.
Delivery countries available for this listing. Choose a country to see the cost and estimated delivery date.
Supplying car parts to customers across Europe, the Americas and Australia.
Send a message to TecNorma. The conversation stays linked to this listing.