Mercedes SLK R172 Hardtop Roof Seal Rear Right O/S Gasket Sealing A1727900298

The Mercedes SLK R172 Hardtop Rear Right Seal is a precisely profiled body component responsible for the sealing of the rear right section of the hardtop on the R172 generation SLK model. Its precise fit to its specific location on the vehicle ensures stable positioning of the hardtop's edge, limiting water and noise ingress into the cabin and supporting the proper functioning of the roof mechanism.

Specifications and technical data

• SKU: A1727900298
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1727900298
• Substitutable numbers: A1727900298, A 172 790 02 98
• Location on the vehicle: Rear, Right
• Category: Window Seals, Gaskets & Trims

Seal's Purpose and Function

The offered seal is a part from the Window and Trim Seals group, specifically designed for the rear right section of the hardtop on the Mercedes SLK R172. Its purpose is to create a tight, flexible barrier between the roof panel and the body, helping to mitigate issues such as:

• ingress of rainwater into the cabin,
• air noise generation at higher speeds,
• micro-movements of the roof panels during suspension operation.

Thanks to its appropriate profile and specific side fitment, the seal helps maintain the correct roof geometry, which is important for both driving comfort and the durability of the entire hardtop folding mechanism.

Body Compatibility and Installation

The seal is designed for installation in the rear right section of the hardtop, in the area where it contacts the body. This location requires a component with a precisely profiled edge, ensuring proper adhesion to the car body and even pressure along its entire length. A correctly installed seal:

• stabilizes the roofline in the rear corner area,
• reduces the risk of leaks in a critical body point,
• supports the correct operation of the hardtop folding and locking mechanism.

Replacing a worn seal with a functional part restores the factory level of sealing in the rear section of the roof, which is particularly important for vehicles operated in varying weather conditions.

Product Characteristics and Application Benefits

The presented roof seal is from the Mercedes range, ensuring compatibility with the factory body geometry and technical specifications intended for the SLK R172 model. Using an original solution in this body area offers several benefits:

• maintaining the correct roof-to-body fitline on the rear right side,
• reducing the risk of leaks in the corner area, which is particularly prone to water accumulation,
• preserving acoustic comfort inside the vehicle,
• visual and technical consistency with other seals in the vehicle.

A component from this group is especially important for vehicles with retractable roofs, where the repetitive movements of the mechanism can accelerate seal wear. Replacing it with a correctly fitted seal helps limit further degradation of adjacent components and reduces stress on the roof mountings.

Item Condition and Service Application

The rear right roof seal is offered as a used part, making it an attractive service solution for vehicle owners looking to restore proper roof sealing while maintaining reasonable repair costs. This type of component is suitable for both spot replacement of a damaged sealing section and for more extensive work related to hardtop adjustment and servicing.

Selecting the correct seal for the specific mounting location is crucial for the effectiveness of the repair – a part intended for the rear right side of the roof ensures proper fitment to the body shape and the manufacturer's designated mounting points.

If you are planning a comprehensive repair or upgrade of the roof and window sealing areas on your Mercedes and need other parts from the same group, such as side window seals, guide rails, or additional sealing profiles, check the available parts in the Mercedes Window and Trim Seals category.

If you are also interested in improving your vehicle's performance and sound through exhaust system modifications, it's worth reading our guide – find more information in the article Performance Exhaust System: Used Headers and Sport Catalytic Converters on the Road.