Wiper Arm Mercedes EQA H243 W247 Front Driver Side O/S Right A2478204700 H243

Wiper Arm Mercedes EQA H243 W247 Front Driver Side O/S Right is an original component from the Wiper arms group, designed for the driver's side in right-hand drive vehicles. It ensures stable movement of the wiper blade across the windshield, which translates into a clear field of vision and safe driving in difficult weather conditions. This is a solution for users who expect factory-fit and predictable operation of the wiper system.

Specifications and technical data

• SKU: rhd-A2478204700
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2478204700
• Substitutable numbers: A2478204700, A 247 820 47 00
• Location on the vehicle: Front, Right
• Category: Wiper Arms

Purpose and body fitment

The presented wiper arm is designed for installation on the front windshield on the right side, on the driver's side in right-hand drive versions. The design is adapted to the geometry of the windshield and the operating range of the wiper mechanism in Mercedes EQA H243 and W247 models, which allows for maintaining the correct blade pressure angle and optimal movement path.

The proper profiling of the arm reduces vibrations at higher speeds and helps maintain even pressure along the entire length of the blade. Thanks to this, the windshield is effectively cleared of water and dirt, and the driver maintains good visibility even during heavy rainfall.

Original origin and construction

The arm comes from the Mercedes range, which means maintaining factory manufacturing standards and full compatibility with the mounts used in the given model. The original geometry of the arm minimizes the risk of collision with the hood, seals, or body pillars, and also ensures correct cooperation with the wiper drive mechanism.

The system of joints and springs used in this type of arm is designed for long-term operation in variable atmospheric conditions. Thanks to this, the element maintains stability and proper blade pressure against the windshield, which is crucial for driving comfort and safety.

Characteristics of the used component

As a secondary market item, the wiper arm has seen previous use, but it remains functional and suitable for further service. This solution allows for reducing repair costs while maintaining the original design and fitment for the specific vehicle model.

Choosing a used wiper arm is particularly beneficial in situations where the existing element has suffered mechanical damage, deformation, or corrosion in the blade mounting area. Replacing the complete arm restores the correct blade pressure on the windshield and eliminates problems with uncleared areas of the field of vision.

Benefits of using an original wiper arm

• Factory fit – maintaining the correct position and operating range of the wiper relative to the windshield.
• Consistency with other system components – compatibility with the drive mechanism and cowl mounting.
• Stable operation in rain and snow – proper blade pressure reduces streaks and improves visibility.
• Economical repair – a used component allows for lowering service costs while maintaining the original design.

Mercedes wiper arms – expansion and windshield area service

If you are planning a comprehensive repair or upgrade of the windshield area in your Mercedes and need other elements from the same group, such as additional arms, mounts, or components working with blades, check the available parts in the Mercedes wiper arms category.

More about economical suspension repair and driving comfort

If you are simultaneously working on improving the car's handling and want to better understand how using used components can lower service costs without losing functionality, it is worth checking out the guide: Knocking in the suspension? Discover a clever way to restore factory steering precision without spending a fortune at the service center.