VW Golf Mk5 Rear Door Window Regulator Crank Left Right N/O/S 1K0839581A

Visual condition of the part

The product shows signs of use visible in the photos.

VW Golf Mk5 Rear Door Window Regulator Crank Left Right is an original component from the Window Regulators and Motors group, designed for manual operation of raising and lowering the rear door window. The part is suitable for both the left and right sides, which facilitates selection during repairs and reduces the risk of installation errors. It is a practical solution for users who want to restore the smooth operation of the window mechanism in their fifth-generation Golf.

Specifications and technical data

• SKU: 1K0839581A-1
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 1K0839581A
• Substitutable numbers: 1K0839581A, 1K0 839 581 A
• Location on the vehicle: Rear, Right, Left
• Category: Window Motors & Regulators

Application and function in the vehicle

The presented regulator is intended for installation in the rear doors of the VW Golf Mk5, on the left or right side. It is responsible for stable window guidance and smooth transmission of movement from the crank to the lifting mechanism. This allows for comfortable positioning of the window without any play or jamming.

Its location in the rear part of the body means the component operates under conditions exposed to moisture and temperature changes, which is why using an original design solution is important for the durability of the entire system.

Construction and technical features

The regulator belongs to the Window Regulators and Motors group, however, in this variant, it works with a mechanical crank rather than an electric drive. The design is based on precise window guidance in the tracks and proper movement transmission, which ensures stable operation during daily use.

Key technical features include:

• dedicated fitment for the rear left and right side of the body in the Golf Mk5,
• mechanical crank control, without the need for electrical installation,
• solution designed for factory mounting points in the door.

Condition, selection, and installation

The offered item is in used condition, which allows for an economical repair while maintaining the original Volkswagen design. This is a beneficial option in situations where the existing regulator has become worn, seized, or mechanically damaged.

Before installation, it is worth verifying the compatibility of the part with your specific vehicle model using the manufacturer's markings and the location on the vehicle. A correctly selected regulator allows for installation into factory holes without the need for bodywork or modifications to the door upholstery.

Benefits of using an original regulator

Using an original window regulator in the Golf Mk5 brings a number of practical benefits:

• stable window operation – reduction of play and vibrations while driving,
• repeatable, predictable mechanism operation every time the crank is used,
• preservation of factory window guidance geometry, which reduces the risk of leaks,
• easier future service thanks to compliance with manufacturer documentation.

This solution is particularly recommended for repairs of daily-driven vehicles where functionality, durability, and compliance with the factory design are important.

If you are planning a comprehensive repair or upgrade of the door and side window area in your Volkswagen and need other components from the same group, such as guides, lifting mechanisms, or window drives, check out the available parts in the Volkswagen Window Regulators and Motors category.

For owners of models from the Golf family who are considering a broader upgrade of their car or want to better understand the design differences between generations, an article describing the development of the sports versions of this model may be helpful – you can find it here: Hot-hatch legend: the evolution of the VW Golf GTI from Mk1 to Mk8 – design changes and VW car parts.

If you are also interested in issues related to the operation of other brands and want to better plan your service budget, it is worth reading a practical guide on problematic power units in a popular mid-size model: BMW E90 faulty engines: check what can ruin your budget!.