Ford Focus Mk2 Windscreen Front Window Wiper Arm Left N/S 4M51-17526-BC

Ford Focus Mk2 Windscreen Front Window Wiper Arm Left N/S is an original component from the Wiper arms group, designed for installation on the driver's side. Specifically engineered for this Ford model, it ensures stable blade guidance, even pressure on the windshield, and predictable operation of the wiper system during daily use.

Specifications and technical data

• SKU: RHD-4M51-17526-BC
• Mark: Ford
• Condition: Used
• OEM Part Number: 4M51-17526-BC
• Substitutable numbers: 4M51-17526-BC, 4M5117526BC, 4M51-17526-BE, 4M5117526BE, 1731535
• Location on the vehicle: Front, Left
• Part type: Wiper Arm
• Category: Wiper Arms

Purpose and fitment for Ford Focus Mk2

The presented wiper arm is dedicated to the Ford Focus Mk2 windshield and is mounted on the left side, in the driver's zone. The appropriate profiling and correct mounting geometry allow for precise replication of the factory blade path, which translates into effective removal of water and debris from the field of vision.

Thanks to the use of the original Ford design, the component maintains proper rigidity while reducing blade vibration at higher speeds. This is especially important in vehicles used intensively, where stable wiper operation affects driving safety in rain and during snowfall.

Construction and technical function of the wiper arm

The wiper arm is responsible for transferring movement from the drive mechanism to the blade and maintaining the correct operating angle relative to the windshield. In this Ford Focus Mk2 model, the arm design has been optimized for:

• proper blade pressure against the windshield surface along the entire working length,
• stable mounting to the wiper mechanism,
• resistance to typical operational loads (wind, blade resistance, dirt).

The properly selected length and angle of the arm prevent collisions with the other arm and windshield seals, which reduces the risk of noise and unwanted skipping. A correctly selected wiper arm also limits blade wear, which reduces service costs in the long run.

Characteristics of the used component

The offered wiper arm is a used component, sourced from dismantling. This type of part allows for an economical repair of the wiper system while maintaining the manufacturer's original specifications. In practice, this means that the geometry, mounting method, and interaction with the wiper mechanism remain consistent with the factory Ford design.

A used OEM wiper arm is a good solution in situations where the existing component has become bent, damaged due to corrosion, collision, or improper blade removal. Replacing the complete arm restores proper wiper operation without the need to interfere with the drive mechanism.

Benefits of using an original wiper arm

Choosing an original wiper arm for the Ford Focus Mk2 brings several practical benefits:

• Factory fit – maintaining the correct path and windshield sweep range, without the risk of rubbing against seals or pillars.
• Compatibility with the mechanism – secure seating on the splines or other mounting type, which minimizes the risk of play and skipping.
• Stable operation in difficult conditions – the appropriate structural rigidity limits blade vibration at higher speeds and in strong winds.
• The ability to use standard blades intended for this model, without the need for adapters.

As a result, the wiper system maintains parameters close to factory standards, which has a direct impact on visibility and driving comfort in rainy conditions.

Wiper operating zone and system expansion

The arm on the left side operates in the key zone of the driver's field of vision, which is why its technical condition is of direct importance for safety. In the case of upgrading or repairing the entire system, it is worth considering checking the second arm, blades, and the drive mechanism to ensure uniform and predictable operation of both wipers.

If you are planning a comprehensive repair or upgrade of the windshield area in your Ford and need other components from the same group, such as additional arms, mounts, or compatible blade holders, check the available parts in the Ford Wiper arms category.

For users interested in selecting used OEM components by catalog numbers and verifying compatibility with a specific engine or equipment version, an article describing a practical approach to identifying parts by VIN and manufacturer numbers may be helpful – you can find it here: Audi five-cylinder engine – a legend from Quattro to RS3 and how to take care of it with original Audi parts.