GM GENUINE PARTS gray mobile telephone microphone 84437087 — OEM-fit hands-free voice pickup for Chevrolet Buick GMC Cadillac

The GM Genuine Parts 84437087 is a gray mobile telephone microphone engineered as an OEM replacement to enable hands-free voice communication in compatible GM vehicles.

This compact microphone is designed to integrate with the factory telephony and hands-free systems on Chevrolet, Buick, GMC, and Cadillac models that accept GM Genuine Parts. Manufactured and validated by GM engineers, the 84437087 matches original equipment fit and function so installation and audio performance align with the vehicle’s intended specifications.

How does this microphone restore hands-free calling?

When your factory microphone is damaged, noisy, or missing, installing the 84437087 returns your vehicle’s ability to capture voice clearly for phone calls and voice commands. It connects to the existing harness and works with the vehicle’s telematics and infotainment systems the same way the original part did.

• Direct OEM-fit design for GM telephony systems
• Plugs into original wiring harness—no custom adapters required
• Engineered to match original sensitivity and frequency response
• Compatible with vehicles that previously used ACDelco GM Original Equipment variants

What are the practical benefits of choosing the GM Genuine Parts microphone?

Choosing this GM Genuine Parts microphone ensures compatibility and long-term reliability backed by General Motors engineering and testing standards. It reduces installation issues and helps maintain vehicle resale value by keeping systems using factory-spec components.

• Built and validated to GM durability and quality standards
• Designed for consistent voice pickup during calls and commands
• Reduces risk of electrical or fitment issues that often come with non-OEM parts
• Supported by GM parts documentation and service networks

How easy is installation and where is it typically mounted?

Installation is straightforward for anyone familiar with vehicle interior trim removal—most replacements are plug-and-play with factory connectors and mounting points. The microphone typically mounts near the headliner or overhead console to capture the driver and front passenger voices without obstructing the cabin.

• Plug-in connector matches OEM harness for quick swap-out
• Mounting points align with original clip or bracket locations
• Ideal placement near headliner or map-light assembly for clear pickup
• Professional installation recommended if interior panels need removal

Will this microphone work with my specific GM model?

The 84437087 is intended for GM vehicles specified to use this part number or its former ACDelco OE equivalent. Confirm compatibility using your VIN or by checking GM parts catalogs to ensure the microphone matches your vehicle’s telephony system.

• Check vehicle compatibility with VIN lookup or GM parts reference
• May replace earlier ACDelco-designated OE microphone variants
• If unsure, consult dealership parts department or certified technician
• Preserves OEM system performance when correctly matched

Who is this for: Drivers and technicians who need a factory-spec replacement microphone for GM telephony systems—especially owners of Chevrolet, Buick, GMC, and Cadillac vehicles seeking a direct-fit part backed by GM engineering. It's well suited for routine part replacement during repairs, restoring hands-free calling, or maintaining original equipment quality in vehicles where the microphone has become faulty or was removed.

• Features:
  • Designed to allow hands free operation
  • Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
  • GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
  • GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
  • GM regularly updates production and service part designs to integrate new materials and technologies