23390432 GM Trunk hinge

What is this part?

The GM trunk hinge 23390432 is a genuine OEM body hardware component designed to support and guide the opening and closing of the trunk lid or tailgate.

What does it do?

This OEM trunk hinge allows the trunk lid or tailgate to pivot smoothly while maintaining correct alignment with the vehicle body. It supports the weight of the lid and works together with gas struts or springs to ensure controlled opening and closing. A genuine GM trunk hinge is manufactured to factory specifications, ensuring strength, precise geometry, and long-term durability. Proper hinge function is essential for smooth operation and correct panel alignment.

When to replace

The GM trunk hinge 23390432 should be replaced if it is bent, cracked, corroded, or if the trunk lid becomes misaligned or difficult to open or close. Worn hinges may cause uneven gaps, noise, or damage to the trunk lid. Installing a genuine OEM hinge helps restore proper trunk operation and alignment.

Compatibility

The genuine GM trunk hinge 23390432 is compatible with selected GM vehicles. This OEM component is engineered for precise fitment with the original trunk lid or tailgate mounting points. Compatibility may vary depending on body style (sedan, hatchback, SUV), left or right side, and model year. Please verify the part number 23390432 before purchase.

Installation: DIY or service?

Installation of this genuine OEM GM trunk hinge 23390432 involves supporting the trunk lid during removal and installation. Installation can be performed as a DIY task by experienced users; however, correct alignment is essential for proper operation.