BMW 3 Series G20 System Latch Front Left Door Lock Complete Catch N/S 7445051

BMW 3 Series G20 System Latch Front Left Door Lock Complete Catch is an original component from the Locks and Latches group, designed for the factory locking system in the driver's door. It ensures precise cooperation with the vehicle's electrical installation and door handle mechanics, guaranteeing secure closing and reliable locking of the door during daily use.

Specifications and technical data

• SKU: rhd-7445051
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7445051
• Substitutable numbers: 7445051, 51217445051, PK
• Location on the vehicle: Front, Left
• Category: Exterior Locks & Lock Hardware

Purpose and compatibility

The presented lock is dedicated to the front left door of the BMW 3 Series G20 generation, which means it fits the body structure, guides, and factory mounting points. Its placement in the front – left side zone allows for the direct replacement of a damaged mechanism without the need for bodywork modifications or mounting adaptations.

As a component originating from a BMW vehicle, the lock maintains compliance with factory safety and comfort standards, including the operation of the central locking system and interior control systems.

Construction and function of the lock mechanism

The door lock plays a key role in the locking system – it is responsible for mechanically keeping the door leaf in a closed position and cooperating with the central locking actuator. The construction includes:

• a locking mechanism body adapted to the BMW 3 Series G20 front left door,
• a set of latches and levers cooperating with the external and internal door handle,
• adaptation for integration with the central locking control system.

Such a solution ensures repeatable, stable door closing and correct response to signals from the remote control and internal switches.

Condition, origin, and advantages of using a used part

The offered lock comes from the group of original BMW components in used condition, which means it retains its factory geometry, proper fitment, and compatibility with vehicle systems. Compared to non-factory replacements, using an original mechanism translates into:

• better fitment to the door structure and guides,
• stable cooperation with the factory central locking system,
• reduced risk of problems with closing or locking the door.

Choosing a used, original lock is a reasonable compromise between repair costs and maintaining the high quality and durability of the locking system.

Benefits of a properly selected door lock

Selecting the correct lock for the BMW 3 Series G20 front left door has a direct impact on the safety and comfort of using the vehicle. A properly functioning mechanism:

• ensures secure locking while driving and when parked,
• eliminates play and unwanted noises when closing the door,
• facilitates the operation of the central locking and comfort systems.

Thanks to the preservation of the factory design, the installation proceeds in an orderly manner, and the mechanism works with other door elements after installation without the need for additional adjustments beyond the standard service procedure.

Expanding the locking system in a BMW

If you are planning a comprehensive repair or upgrade of the door area in your BMW and need other elements from the same group, such as additional locking mechanisms, catches, or components cooperating with the central locking, check the available parts in the BMW Locks and Latches category.

To better plan your repair budget and consciously choose proven recycled components, it is worth familiarizing yourself with practical tips regarding the selection of used safety and comfort system components – the article Brake calipers under the microscope: How to effectively reduce brake system repair costs by choosing proven recycled parts will be helpful, as it shows how to safely use original used parts.