Mini Cooper One R50 R53 R55 R56 R57 R58 R59 Left Rotary Latch Lock Left N/S

Mini Cooper One R50 R53 R55 R56 R57 R58 R59 Left Rotary Latch Lock Left N/S is an original component from the Locks and Latches group, designed for installation on the left side of the vehicle body. It ensures the proper operation of the driver's door opening and closing mechanism, stable locking, and correct integration with factory Mini vehicle systems. This is a solution for users who expect a robust construction and the maintenance of factory safety parameters.

Specifications and technical data

• SKU: rhd-0556770
• Mark: Mini (Genuine OE)
• Condition: Used
• OEM Part Number: 51200556770
• Substitutable numbers: 51200556770, 4416271, 0556770, 51214350973, 4350973, 51214416271
• Location on the vehicle: Left
• Category: Exterior Locks & Lock Hardware

Purpose and function of the door lock

The presented lock is dedicated to the front left door in Mini Cooper R50, R55, R56, and R57 series models. Its task is to precisely lock the door panel, maintain a stable position while driving, and ensure proper cooperation with both the exterior and interior door handles. The design, intended for a specific side of the vehicle, minimizes the risk of play, incomplete closing, or improper mechanism operation.

Construction and body fitment

The lock belongs to the group of components responsible for the mechanical locking of the door and transmitting movement from the handle to the latch. The mounting system has been designed for the factory mounting points in Mini doors, which facilitates installation and limits the need for additional modifications. As a result, after replacement, the proper fitment of the door to the body is maintained, and the body line remains consistent with the manufacturer's specifications.

The placement on the left side of the vehicle means that the lock geometry, lever positioning, and cable routing are adapted to the driver's door. Such fitment translates into repeatable mechanism operation, even pressure, and predictable performance with every opening and closing.

Benefits of using an original Mini lock

Using an original lock in a Mini Cooper allows for maintaining the consistency of the entire locking system with other door components. In practice, this means:

• maintaining the factory operating characteristics of the handle and latch,
• proper cooperation with other door components,
• reduced risk of problems with closing or door rebound,
• easier diagnostics of potential faults in the future.

The element from this group is particularly important in daily operation – it is responsible for user comfort, parking safety, and protection of the vehicle interior. Choosing an original solution allows for maintaining parameters close to those intended by the Mini manufacturer.

Condition, verification, and service application

The offered door lock comes from the used parts segment, making it an attractive cost-effective alternative while maintaining a design consistent with the factory project. This type of component is often chosen for post-accident repairs, replacing a worn-out mechanism, or when dealing with locking problems on the driver's side. Thanks to the preservation of the original mounting geometry, it is possible to carry out the replacement using standard service procedures, without the need for door modifications.

If you are considering a choice between a new and a used part and want to better understand the differences in costs and durability, a comparative article may be helpful: New or used? A comparison of car parts costs and quality.

Expanding the Mini lock system

If you are planning a comprehensive repair or upgrade of the door lock area in your Mini and need other elements from the same group, such as additional locks, latches, or mechanisms related to locking, check the available parts in the Mini Locks and Latches category.