Mercedes W164 Rear Door Seal Gasket Sealing Rubber Left Right N/O/S A1647370287

The Mercedes W164 rear door seal is an original part from the Door Seals category, designed for installation on the left or right side of the rear body. It ensures a tight door closure, reduces road noise, and improves interior protection against water and dirt, which is important for both driving comfort and upholstery durability.

Specifications and technical data

• SKU: A1647370287
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1647370287
• Substitutable numbers: A1647370287, A 164 737 02 87
• Location on the vehicle: Rear, Right, Left
• Part type: Door Seal
• Category: Door Seals

Purpose and Function of the Rear Axle Door Seal

The presented rear door seal for the Mercedes W164 operates in the area where the door leaf contacts the body, on the left or right rear side of the vehicle. Its purpose is to:

• limit the ingress of water and moisture into the cabin,
• reduce air noise and noise from the wheel arches,
• stabilize the door's position relative to the body frame,
• protect metal edges from accelerated corrosion.

Thanks to its proper profile, the sealing rubber works with the factory door geometry, promoting even pressure around the entire perimeter and improving the overall operation of locks and hinges.

Construction, Fit, and Installation

The seal is made of flexible rubber material with selected hardness, allowing for repeated, tight door closing without excessive strain on the hinges. The cross-section profile is specifically designed for the rear body structure of the W164, which translates to:

• precise guidance along the door frame edges,
• stable seating in factory sockets and grooves,
• possibility of installation on the left or right rear side of the vehicle without body modifications.

The part comes from disassembly, so it is already formed for actual operating conditions in this model. This facilitates installation and reduces the time needed for fitting to the existing door assembly.

Benefits of Using an Original Rear Door Seal

Using an original rear door seal on a Mercedes W164 allows for the restoration of factory sealing and acoustic parameters in the rear cabin. In practice, this means:

• more stable operating conditions for electrical systems in the doors due to reduced moisture,
• lower risk of window fogging in the rear of the vehicle,
• better protection of upholstery, door panels, and sills from moisture,
• maintaining a consistent door-to-body fit line, which affects aesthetics and aerodynamics.

For users who value acoustic comfort, replacing a worn seal with a functional part from disassembly is a simple way to improve sound insulation without altering the body structure.

Condition, Origin, and Service Application

The seal is in used condition, which is typical for original parts sourced from the disassembly of service or accident-damaged vehicles. Such components are often chosen by professional body and paint shops, as well as by discerning users who prefer factory fit and body construction compliance.

The part is suitable for both local repair of individual doors and for more extensive work related to restoring sealing after a collision or replacing body panels. Thanks to the preservation of original geometry, repeatable results can be achieved without the need for experimenting with aftermarket alternatives of uncertain profile.

Repair Extension and Additional Information

If you are planning a comprehensive repair or modernization of the door area in your Mercedes and need other parts from the same group, such as additional perimeter seals, sill seals, or pillar seals, check the available parts in the category Mercedes Door Seals.

For major body repairs, especially after collisions, it is worth familiarizing yourself with practical tips on selecting disassembled parts – you will find them in the article Body and Chassis – Accident Repairs Using Disassembled Parts, which discusses, among other things, the selection of used OEM components and typical service procedures.