6420908237 Air Mass Sensors Engine Air Duct for Mercedes W211 W164 X164 ML320

Product Overview

This aftermarket replacement air mass sensor with engine air duct is intended for the listed Mercedes applications and cross-references part number 6420908237. A mass air flow sensor measures the volume and density of air entering the engine so the engine management system can adjust fuel delivery accordingly. The included engine air duct supports the normal airflow path between the air filter housing and the engine intake.

Key Features & Performance

• Measures incoming air volume to support correct air-fuel ratio calculations by the engine control unit
• Houses the sensor element within a duct section for the listed intake configuration
• Cross-references part number 6420908237 for comparison with the existing component
• Used when servicing or replacing a failed or contaminated mass air flow sensor
• Intended for the Mercedes applications listed in the title, including W211, W164, and X164 chassis

Fitment & Compatibility

• for Mercedes W211 applications
• for Mercedes W164 applications
• for Mercedes X164 applications
• for Mercedes ML320 applications

Common Uses

• Replacing a mass air flow sensor that is dirty, damaged, or no longer reading correctly
• Routine maintenance of the engine air intake and management system
• Restoring normal air metering after the original sensor or duct has failed

Technical Specifications

• Product Type: Air Mass Sensor with Engine Air Duct
• Part Number: 6420908237
• Model Application(s): W211, W164, X164, ML320
• General Application: Mercedes vehicles listed in the title

Frequently Asked Questions

Q: What does an air mass sensor do? A: It measures the amount of air entering the engine so the engine control unit can calculate the correct fuel quantity for combustion.

Q: How should fitment be verified? A: Compare the complete part number 6420908237 and the full vehicle model and chassis designation against the existing component before ordering.

This is an aftermarket replacement part and is not represented as genuine or original equipment. Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number, model year, or existing part number. Verify fitment before purchase.