Intake Hose Mercedes W204 Air Intake Pipe Tube Left N/S A6420902042

Intake Hose Mercedes W204 Air Intake Pipe Tube Left N/S is an original intake system component designed for installation on the left side of the engine bay. It ensures stable airflow to the engine, which translates into smooth engine operation and predictable performance. Thanks to its factory geometry and fitment, this intake hose allows for efficient replacement without the need for any modifications.

Specifications and technical data

• SKU: A6420902042
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6420902042
• Substitutable numbers: A6420902042, A 642 090 20 42, A6420901342, A 642 090 13 42, A6420945597, A 642 094 55 97
• Location on the vehicle: Left
• Category: Hoses, Lines & Pipes

Purpose and function in the intake system

The presented hose belongs to a group of components responsible for controlled airflow between the intake system and the engine. Its task is to maintain airtightness and the correct channel diameter so that the flow remains stable and the sensors and engine control unit can operate within the intended range.

Its location on the left side of the vehicle facilitates service and diagnostics, and also allows for seamless matching to factory mounts, clamps, and adjacent components. This is particularly important in modern units, where every element of the intake system has a precisely defined position.

Construction and fitment for Mercedes W204

The hose has been designed specifically for the Mercedes W204 platform, maintaining the original geometry, bend angles, and support points. Thanks to this:

• it fits factory intake system ports and connectors,
• it maintains appropriate stiffness and flexibility in areas exposed to vibrations,
• it minimizes the risk of leaks at the joints.

Proper routing of the hose on the left side of the engine bay limits contact with hot elements and moving parts of the equipment, which promotes longer and more stable operation.

Characteristics of the used component

As an aftermarket part, the intake hose is a cost-effective solution while maintaining the original manufacturer's specifications. A used component allows for restoring the proper operation of the intake system in situations where the existing hose has cracked, delaminated, or suffered thermal deformation.

Choosing an original hose from dismantling is particularly attractive for users who want to maintain factory airflow and avoid problems with fitting replacements that have different geometry.

Benefits of using an original intake hose

Using the correct air intake hose in a Mercedes W204 translates into a number of practical benefits:

• maintaining stable engine operating parameters thanks to predictable airflow,
• reducing the risk of control unit errors related to intake leaks,
• easier diagnostics – the system remains consistent with the factory design,
• no need to modify adjacent elements in the engine bay.

For users planning a wider range of work on the intake system or engine equipment, our practical guide may be helpful – check the article how to safely buy used engine components to better plan the next stages of repair.

How to choose the right hose for your car

To correctly select this component for a specific engine version, it is worth paying attention to the manufacturer's markings and reference numbers visible in the specification section. These guarantee that the hose will be compatible with the given engine variant and equipment.

If you are upgrading or repairing the intake system in your Mercedes and also need other elements of this type, check out the full offer in the category Cables, hoses and pipes, where you will find a wide selection of components matched to various models.

Summary

Intake Hose Mercedes W204 Air Intake Pipe Tube Left N/S is a functional, original intake system component mounted on the left side of the vehicle. It allows for restoring airtightness and proper airflow to the engine, which has a direct impact on the engine's operating culture. It is a reasonable choice for those who expect factory fitment, predictable installation, and want to keep the intake system construction consistent with the manufacturer's design.