Lock Cover BMW E90 E91 Front Right O/S Handle Catch Cylinder Black Sapphire 475

Lock Cover BMW E90 E91 Front Right O/S Handle Catch Cylinder in Black Sapphire Metallic is an original body component designed for installation at the external door handle lock cylinder. It allows for an aesthetic and functional finish of the lock area on the passenger side, maintaining a consistent body paint appearance. This is a practical solution for users who want to restore the factory look of the door after repairs or handle replacement.

Specifications and technical data

• SKU: rhd-0399172-BS
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 0399172
• Substitutable numbers: 0399172, 51210399172, 0399170, 51210399170, KD
• Location on the vehicle: Front, Right
• Color: Black Sapphire Metallic - 475
• Category: Door Handles

Purpose and function of the component

The presented lock cover is part of the Door Handles group and operates in the immediate vicinity of the external front right door handle lock cylinder. Its task is to cover the lock mechanism and provide a stable, aesthetic finish for the handle, without unnecessary gaps or irregularities. Thanks to its precise fit to the design of the BMW 3 Series E90/E91, the correct handle geometry and convenient access to the door handle are maintained.

Color and visual fit

The component is finished in Black Sapphire Metallic – 475 paint, which allows for a seamless match with factory-painted doors in the same shade. The metallic structure of the coating provides a characteristic depth of color and blends well with the BMW body line. For vehicles in this color, the cover eliminates the need for additional painting, which shortens repair time and simplifies the installation process.

Vehicle placement and installation aspects

The cover is designed for installation on the front right door, in the external handle area. The design, matched to the factory BMW mounting, allows for proper seating of the element relative to the lock cylinder and other handle parts. In practice, this means:

• maintaining the correct position relative to the door edge,
• no interference with the handle movement during opening and closing,
• stable attachment to the surface without looseness or vibrations.

As a used part, the item may show signs of wear typical of dismantled components, yet it retains the functionality necessary for further use in the vehicle.

Benefits of using an original lock cover

Using an original lock cover for the BMW E90/E91 door handle allows for maintaining the structural and visual consistency of the body. The main advantages include:

• factory fit to the shape of the handle and door,
• preservation of the uniform Black Sapphire Metallic paint shade,
• proper protection of the lock cylinder against external factors,
• possibility of quick replacement of a damaged or missing element without interfering with the door structure.

Thanks to this, the product will work well both for accident repairs and for supplementing missing body details in daily-driven cars.

Part selection by OEM number and compatibility

When selecting a door handle lock cover for a BMW, it is worth paying attention to compatibility with the OEM number and interchangeable numbers to ensure that the element will work correctly with the existing handle and lock. The vehicle's VIN number and comparing the shape and color with currently installed components can be helpful. If you want to organize the selection process and check how to verify the compatibility of used parts by VIN and OEM number step-by-step, use the advice contained in the article Guide: how to select the right car part by VIN and OEM number.

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 external handles, cylinder covers, or additional handle segments, check the available parts in the category BMW Door Handles.