Seat Leon Mk2 1P Rear Window Lifter Regulator Mechanism Right O/S 1P0839402B

Seat Leon Mk2 1P Rear Window Lifter Regulator Mechanism Right O/S is an original component from the Window regulators and motors group, designed for operating the rear passenger-side window. It ensures stable window guidance, proper power transmission, and correct compatibility with the factory control system in your Seat.

Specifications and technical data

• SKU: 1P0839462B
• Mark: Seat
• Condition: Used
• OEM Part Number: 1P0839462B
• Substitutable numbers: 1P0839462B, 1P0 839 462 B
• Location on the vehicle: Rear, Right
• Part type: Regulator & Motor Assembly
• Category: Window Motors & Regulators

Purpose and function in the vehicle

The presented mechanism is dedicated to the rear right side of the body, where it is responsible for the smooth raising and lowering of the window. As a component structurally matched to the Seat Leon Mk2 1P model, it works with the factory window motor and door guides, maintaining proper operating geometry and reducing the risk of jamming.

Thanks to the precise guidance of the window, the mechanism reduces excessive stress, which helps maintain door sealing and improves acoustic comfort inside the vehicle.

Construction and technical fitment

The window regulator mechanism is designed as a component mounted in the rear right part of the body, taking into account the factory mounting points in the door. The design provides for compatibility with original window mounts and standard door equipment, which facilitates installation and reduces the need for additional modifications.

The appropriate arrangement of guides and support points ensures even load distribution during window operation, which translates into stable operation of the entire system and less wear on moving parts.

Condition, application, and benefits of replacement

The item comes from the used parts group, which allows for an economical repair of the window lifting system while maintaining the manufacturer's original specifications. Replacing a damaged mechanism with a functional component of this type is recommended in the event of symptoms such as: uneven window lifting, jamming, the window dropping in the guides, or no response to controls despite a functional electrical system.

The main benefits of using this mechanism include:

• restoration of full functionality of the rear right window,
• preservation of the factory window guidance and sealing method,
• reduction of noise and vibrations coming from the door,
• possibility of using existing door equipment without interfering with the structure.

Seat window regulators and motors – expansion and service

If you are planning a comprehensive repair or upgrade of the door and window area in your Seat and need other elements from the same group, such as guides, window motors, or complete window mechanisms, check the available parts in the Seat window regulators and motors category.

Technical support and service knowledge

When planning repairs to window systems, it is worth considering the general condition of the vehicle and experiences with other brands and models, where neglecting service leads to costly engine repairs. A good point of reference may be an article describing critical engines in a popular mid-size model – Faulty BMW E90 engines: check what can ruin your budget!. This will allow you to better plan your maintenance schedule and avoid putting off key repairs, including those for your Seat.