Lower Case cover for Lenovo W model, part 5CB1B38996

Replacement lower case for Lenovo W model, part 5CB1B38996. This bottom cover is designed to match the original chassis underside of compatible Lenovo W-series laptops and provides protection for internal components while maintaining the correct alignment and mounting points for ports, battery and internal modules. It is intended for repair or refurbishment to restore the laptop's structural integrity and ensure proper fit of internal parts.

Advantages

The lower case is manufactured to recreate the original external shape and mounting geometry, offering a durable platform that secures internal components and external connectors. Using a dedicated replacement lower cover helps eliminate loose or misaligned ports, prevents ingress of dust and debris to internal areas, and restores the laptop's flat base for stable placement on surfaces.

Suitable for

• Repairing a Lenovo W-series laptop with a cracked or damaged bottom cover
• Refurbishment projects where the original lower case is worn or deformed
• Replacement when mounting points for battery or internal modules are broken
• Restoring proper alignment of side and rear ports for secure cable connections

Key specifications

• Compatibility: Lenovo W-series laptops that use the corresponding lower case design
• Function: Chassis underside — protection and mounting platform for internal components
• Material: Durable plastic composite consistent with OEM lower covers
• Finish: Textured or matte surface to match original laptop appearance
• Includes: Bottom cover with integrated mounting points and port openings
• Color: Typically matches original model finish (black or manufacturer-specified)

How to use

Power off the laptop and remove the battery and any external power sources before beginning. Disassemble the laptop according to the manufacturer's service instructions to access the lower case, taking care to keep track of screws and connectors. Remove the damaged lower cover and transfer any retained brackets, rubber feet or inserts to the replacement part if necessary. Align the replacement lower case to the chassis so that all internal modules, battery and external ports sit correctly in their cutouts, then secure with the original screws and reinstall the battery and power sources. Verify that ports, vents and mounting points are properly seated and that the laptop rests flat on a surface.

Usage recommendations

Use appropriate ESD precautions and refer to official Lenovo service documentation for disassembly and reassembly procedures. Inspect transferred components such as rubber feet, screws and brackets for wear and replace them if damaged. If unsure about compatibility with your specific laptop submodel, verify fitment before installation.