BMW E93 Convertible Folding Hardtop Roof Right Left N/O/S Hydraulic Cylinder Set

BMW E93 Convertible Folding Hardtop Roof Right Left N/O/S Hydraulic Cylinder Set is a set of hydraulic components designed for operating the folding roof in the BMW 3 Series E93 convertible. The set includes components mounted on the right and left side of the vehicle, allowing for consistent servicing of the entire system. This is a solution for users who want to restore the correct, safe, and smooth operation of the roof mechanism without interfering with the body structure.

Specifications and technical data

• SKU: 7183320-2
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7183320
• Substitutable numbers: 7183320, 54377183320, 7128782, 54377128782
• Location on the vehicle: Right, Left
• Category: Hardtops, Roof Panels & Parts

Purpose and function in the BMW E93 roof system

The presented set of hydraulic cylinders and lines is responsible for transferring operating pressure in the roof control system of the BMW E93 folding convertible. These components work with the hydraulic pump and control module, ensuring controlled raising and lowering of the roof panels and the trunk lid associated with the roof mechanism.

Thanks to the use of the original BMW design, factory line routing, proper cylinder operating geometry, and compatibility with factory mounting points on the right and left sides are maintained. This reduces the risk of leaks, jams, or roof positioning errors.

Set construction and vehicle placement

The set includes elements intended for installation on the right and left side of the body, in the roof structure guidance zone. The arrangement of the components is consistent with the factory BMW design, which facilitates installation and subsequent maintenance.

• Cylinders responsible for the movement of selected segments of the convertible roof.
• Hydraulic lines supplying the working medium to the cylinders.
• Factory ends and connections matched to the BMW E93 hydraulic system.

This configuration allows for maintaining the consistency of the entire roof hydraulic system and minimizes the need for installation modifications.

Benefits of using original roof hydraulics

Using dedicated roof hydraulic components in the BMW E93 translates into a number of practical advantages in the daily operation of the convertible:

• restoration of the correct operation of the roof folding and unfolding mechanism,
• maintaining compliance with factory controls and position sensors,
• reducing the risk of leaks thanks to matched lines and connectors,
• maintaining the proper speed and smoothness of roof element movement.

For users who want to keep their convertible in good technical condition, choosing original BMW roof hydraulics is a solution that allows for maintaining the performance characteristics intended by the manufacturer.

Product characteristics and fitment

The offered set comes from the Convertible tops, cars and parts group, which means it was designed specifically for roof mechanisms, rather than as a universal hydraulic element. Thanks to this, the proper length of the lines, routing shape, and cylinder mounting points are maintained.

The elements are marked with an OEM part number and have interchangeable numbers, which facilitates verification of compatibility with a specific vehicle configuration. Before purchasing, it is worth comparing the markings with service documentation or the VIN to confirm full fitment for a given BMW E93 unit.

Condition, origin, and informed part selection

The product is offered as a used original BMW part, which represents a compromise between cost and maintaining factory build quality. For many convertible users, this is a rational solution for repairs to the roof system, which as a specialized assembly can be expensive to restore using new parts.

If you want to better understand the differences between original parts, replacements, and aftermarket elements, the following article will be helpful: Original, replacement or used – which car parts are the most cost-effective?. There you will find a comparison of costs, quality, and tips on selection by OEM number.

If you are planning a comprehensive repair or upgrade of the convertible roof area in your BMW and need other elements from the same group, such as cylinders, guides, or additional hydraulic lines, check out the available parts in the Convertible tops, cars and parts BMW category.