BMW 3 Series E36 Rear Right Door O/S Lock Latch Mechanism Catch 8122420

BMW 3 Series E36 Rear Right Door O/S Lock Latch Mechanism Catch is an original locking mechanism component designed for the rear right side of the vehicle body. Thanks to its factory design, it ensures proper cooperation with the door handle, rods, and central locking system, restoring the correct operation of the door. This is a practical solution for users who want to maintain the technical and visual consistency of their BMW.

Specifications and technical data

• SKU: 8122420
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8122420
• Substitutable numbers: 51228122420, 8122420, 51221960842, 1960842, 51221960608, 1960608, BG
• Location on the vehicle: Rear, Right
• Category: Boot & Hatch Lids

Purpose and vehicle placement

The presented lock is dedicated to the rear right side of the body, meaning it works with the rear passenger door structure. It is responsible for mechanical locking and unlocking of the door leaf, both from the inside and outside of the vehicle. Proper fitment to the specific position in the car reduces the risk of looseness, leaks, and closing issues.

Function and role in the BMW door system

The door lock in a BMW plays a key role in the safety and comfort system. This component:

• ensures stable door closure while driving,
• works with the door handle mechanism and any central locking system,
• enables proper vehicle locking when parked,
• minimizes noise and vibrations resulting from poorly closed doors.

By maintaining factory geometry and mounting points, the lock allows for precise fitment with the BMW E36 door structure, which is essential for repairs after collisions or due to operational wear.

Characteristics of the used component

The offered lock comes from the Tailgates and rear parts category, meaning it is part of the rear body zone. As a used component, it represents a reasonable compromise between cost and functionality – it allows for restoring door efficiency without the need to invest in a new subassembly. A used lock is also a good solution for those who care about maintaining original BMW components in their car.

Benefits of using an original BMW lock

Using an original door lock in a BMW E36 brings a number of practical advantages:

• Factory fitment – compatibility with the door and body structure, without the need for modifications.
• Consistency with other locking system elements – proper cooperation with handles and internal mechanisms.
• Reduction of adjustment problems – correct geometry makes it easier to set the door and close it.
• Possibility of economical repair – replacing the lock itself instead of the entire door or additional subassemblies.

Practical installation tips

When replacing the lock in the rear right part of the body, it is worth paying attention to the condition of the guides, rods, and the handle to fully utilize the potential of the newly installed component. Installation by a person with experience in door upholstery and lock mechanisms is recommended, which will help avoid damage to the trim and plastic clips. A properly installed lock restores comfortable door opening and closing and improves the overall feeling of vehicle solidity.

If you are planning a comprehensive repair or modernization of the rear body zone in your BMW and need other elements from the same group, such as locks, hinges, or closing mechanisms, check the available parts in the BMW Tailgates and rear parts category.

For drivers interested in a broader perspective on choosing used subassemblies and optimizing operating costs, an article describing the advantages of using proven second-hand parts may be helpful – you can find it here: Used car parts for Mini Cooper – a way for style and savings.