Bosch 62421 Fuel Injector

Bosch Fuel Injector for Mercedes-Benz AMG

Bosch Fuel Injector Part Number 62421 is a new MPFI fuel injector for select Mercedes-Benz AMG applications. It is built for direct replacement service on high-performance engines that use port or multi-point fuel injection, with fitment covering Mercedes-Benz C63 AMG, E63 AMG, S63 AMG, and related AMG models.

Bosch’s Fuel Injector (New) line focuses on replacement injectors for gasoline direct-injection service needs after removal from the cylinder head. For this application, Bosch 62421 is supplied as a new injector with two fuel injector O-rings included for service-ready installation.

Key Features

• Bosch new fuel injector for MPFI applications
• Part number 62421 for catalog and service lookup
• Fuel injector O-rings included
• Designed for Mercedes-Benz AMG engine management systems
• Direct replacement for select port or multi-point fuel injection applications
• Cross-reference: 1560780023

Detailed Description

Bosch 62421 is a replacement fuel injector for select Mercedes-Benz AMG models from 2007-2015. It supports precise fuel delivery in high-output engines and is listed for applications including 2008-2015 Mercedes-Benz C63 AMG, 2007-2011 Mercedes-Benz E63 AMG, and 2008-2010 Mercedes-Benz S63 AMG. If you are servicing a Mercedes-Benz C63 AMG fuel injector, Mercedes-Benz E63 AMG fuel injector, or Mercedes-Benz SLS AMG fuel injector application, this Bosch part number 62421 is the catalog reference to verify.

The Bosch Fuel Injector (New) line is intended for injector replacement service after the original injector has been removed from the cylinder head. Bosch also notes that injector seals should be replaced after service because they are single-use components. This injector is specified for MPFI (Port or Multi-Point Fuel Injection) systems and includes two O-rings for sealing support.

What It Helps Address

• Hard starting caused by poor fuel atomization
• Rough idle from inconsistent injector delivery
• Misfire conditions related to fuel delivery imbalance
• Loss of throttle response from restricted injector performance
• Fuel trim issues tied to worn or leaking injectors

Installation Notes and Tips

Verify the Bosch 62421 part number against the original injector before installation. Confirm the vehicle application by year and model, including Mercedes-Benz CLS63 AMG, CL63 AMG, SL63 AMG, ML63 AMG, CLK63 AMG, and R63 AMG where listed. Replace injector seals during service, and inspect the fuel rail and cylinder head sealing surfaces before reassembly. Use proper fuel system procedures to relieve pressure before removing the injector.

Quality Assurance

Bosch is a recognized OE supplier in fuel injection technology, and this injector is built for service replacement on listed AMG applications. Fitment is confirmed for 2007-2015 Mercedes-Benz AMG models in the catalog data, and part number 62421 should be matched to the original application before installation.