Replacement Coiled Cable for Heavy-Duty & Keypad Microphones

The Motorola 3075336B10 is a genuine replacement cable assembly designed for select Motorola heavy-duty and keypad mobile-radio microphones.

It allows a compatible microphone with a worn, damaged or intermittent cable to be repaired without replacing the complete microphone assembly.

Ideal for radio dealers, service centers and fleet-maintenance departments, this replacement coiled cord helps restore a dependable connection between the microphone and compatible Motorola mobile radio.

Key Features

• Replacement cable for select Motorola mobile microphones

• Designed for heavy-duty and keypad microphone models

• Replaces worn, damaged or intermittent microphone cords

• Helps extend the service life of a compatible microphone

• Coiled design provides flexible operating reach

• More economical than replacing a complete microphone

• Genuine Motorola Solutions replacement part

Product Specifications

• Manufacturer: Motorola Solutions

• Model Number: 3075336B10

• Accessory Type: Replacement microphone cable assembly

• Cable Style: Coiled microphone cord

• Application: Compatible heavy-duty and keypad microphones

• Installation Type: Internal microphone replacement component

• Color: Black

Compatible Microphones

The 3075336B10 is designed for select Motorola mobile-radio microphones, including:

• Motorola HMN4079 Keypad Microphone

• Motorola RMN5053 Heavy-Duty Microphone

• Motorola RMN5065 IMPRES Keypad Microphone

• Motorola RMN5127 IMPRES Keypad Microphone

Compatibility may vary by microphone revision. Confirm the complete microphone model before ordering.

Replacement for Earlier Part Numbers

The Motorola 3075336B10 is commonly used as a replacement for:

• RLN6277

• RLN6277A

Verify the existing cable and microphone part numbers before substituting this assembly.

Common Replacement Reasons

A microphone cable may require replacement when it develops:

• Cracked or damaged insulation

• Intermittent audio

• Intermittent push-to-talk operation

• Loose or damaged connectors

• Excessive stretching

• Internal conductor failure

• Damage near the microphone strain relief

Replacing the cable will not correct faults caused by the microphone housing, circuit board, push-to-talk switch or connected radio.

Installation Information

The 3075336B10 is an internal replacement component and may require the compatible microphone to be opened during installation.

Professional installation is recommended to:

• Prevent damage to the microphone housing

• Ensure correct internal connections

• Preserve proper strain relief

• Verify push-to-talk and audio operation

• Confirm reliable radio communication after repair

Important Product Distinction

This is a replacement cord for a compatible microphone. It is not a microphone extension cable and does not include the microphone housing, keypad, push-to-talk switch or audio components.

Package Contents

• One Motorola 3075336B10 replacement microphone cable assembly

Microphone, mobile radio, installation tools and additional replacement parts are not included.

Ideal Applications

• Two-way radio repair centers

• Authorized radio dealers

• Fleet-maintenance departments

• Public-safety communications shops

• Commercial radio-system maintenance

• Replacement-parts inventory

• Refurbishment of compatible Motorola microphones

Why Buy from Delmarva Communications?

Delmarva Communications provides genuine communications equipment backed by more than 20 years of industry experience. Our team can help verify microphone compatibility and identify the correct replacement cable for your Motorola accessory.