BMW 1 Series F20 F20N F21 F21N LCI Rear Window Wiper Arm 7241985

BMW F20 F21 Rear Wiper Arm 7241985 is an original part from the wiper arms category, designed for installation on the rear window of BMW F20/F21 1 Series models. A used wiper arm ensures a factory fit, secure blade mounting, and stable wiper system operation in daily use. This is a practical solution for drivers who want to restore proper rear wiper function without investing in a new component.

Specifications and technical data

• SKU: 7241985
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7241985
• Substitutable numbers: 61617241985, 7241985, 7241984
• Location on the vehicle: Rear
• Category: Wiper Arms

Purpose and Fitment for BMW F20/F21

The wiper arm has been specifically designed for the BMW F20/F21 body style, which translates to proper blade guidance across the rear window and appropriate pressure on the glass surface. This ensures the wiper system maintains correct operating geometry, keeping the window clear in rain, snow, and challenging driving conditions.

The component is mounted on the rear of the vehicle, replacing the factory wiper arm and utilizing the original mounting point. This approach minimizes the risk of vibrations, uneven pressure, or excessive wiper blade wear.

Technical Specifications of the Wiper Arm

The BMW rear wiper arm is manufactured to OEM standards, using materials selected for their resistance to weather conditions and mechanical stress. The construction ensures:

• stable transfer of motion from the wiper mechanism to the blade,
• maintenance of the correct working angle relative to the window,
• secure seating on the drive shaft,
• compatibility with the factory-specified wiper blade for this model.

By maintaining the original arm geometry, the system operates smoothly without excessively loading the drive mechanism.

Product Condition and Benefits of Choosing a Used Part

The offered wiper arm is from the used BMW parts category, allowing for a reasonable purchase cost while maintaining original manufacturer specifications. This is a good solution when the existing wiper arm has suffered mechanical damage, corrosion, or deformation affecting wiper performance.

Choosing a used wiper arm offers several practical advantages:

• original fitment to the vehicle body and wiper mechanism,
• no need for mounting modifications,
• preservation of the factory blade path across the window,
• economical repair of the rear window cleaning system.

Prior to installation, a standard inspection of the component and proper tightening of the mounting are recommended to ensure safe and stable long-term operation.

Application in the Rear Wiper System

The wiper arm works in conjunction with the factory rear wiper drive mechanism, transferring its rotational motion to the blade. A correctly selected wiper arm contributes to:

• uniform cleaning of the window surface,
• reduced noise during wiper operation,
• minimized blade wear due to proper pressure,
• maintained good rear visibility in adverse weather conditions.

This is particularly important for daily urban and rural driving, where a clean rear window enhances maneuvering safety and road awareness.

BMW Wiper Arms – Selecting the Right Part

If you are looking for other BMW wiper arms suitable for different models of this brand, please check our dedicated category: BMW wiper arms. Here you will find a wide selection of parts for both front and rear windows, making it easier to choose the right solution for your specific vehicle body and year.

How to Wisely Choose Used Parts

When purchasing used body and accessory parts, such as a rear wiper arm, it is beneficial to know the basic principles of selection and component assessment. If you want to learn more about how to buy second-hand parts wisely and optimally care for your car, read our article: Used Parts – Your Guide to the Best Deals in the Automotive Store.