Keystone GM1142121C Rear Driver Side Bumper Cover Retainer

The Keystone GM1142121C is a rear driver side (left) bumper cover retainer designed as an OEM-style replacement for select GM vehicles. This retainer secures the rear bumper fascia to the vehicle body structure, maintaining proper alignment and preventing the cover from shifting, rattling, or separating during normal driving conditions.

Manufactured from durable plastic, this retainer matches the material and fit characteristics of the original factory component, making it an ideal choice for collision repair and body shop applications. It installs in the same location as the original part with no modifications required.

Key Features:

• Rear driver side (left) placement
• Constructed from durable OEM-grade plastic
• Direct OEM-style replacement — no drilling or modification needed
• Restores proper bumper cover alignment and retention
• Designed for collision repair and body restoration applications
• Partslink Number: GM1142121C

Keystone Automotive Industries is a leading supplier of aftermarket collision replacement parts, offering OEM-style components built to restore vehicles to pre-accident condition.