Genuine Icom Channel Selector Knob for Professional Portable Radios
The Icom 8610012921 is an OEM replacement channel selector knob designed for Icom professional portable transceivers. This molded plastic control knob allows operators to quickly select channels by rotating the knob, providing tactile feedback and reliable operation in demanding field environments. The knob features an ergonomic design with a textured grip surface for easy operation with or without gloves.
Key Features
- Genuine Icom OEM Part: Factory original component ensuring perfect fit and reliable operation
- Ergonomic Design: Rounded top and side grooves for comfortable grip and smooth rotation
- Textured Surface: Provides secure grip even with gloves or in wet conditions
- Durable Construction: High-impact molded plastic designed to withstand daily use
- D-Shaft Interface: Internal slot engages with knob shaft for positive mechanical connection
- Professional Grade: Built to meet the demanding requirements of commercial radio operations
- Field-Replaceable Component: Can be replaced when worn, cracked, or lost to restore full functionality
Compatible Radio Models
- IC-F3061S Portable Transceiver
- IC-F3161 Portable Transceiver
- IC-F3061T Portable Transceiver
- IC-F3061 Portable Transceiver
What's Included
- One (1) Icom 8610012921 Channel Selector Knob
Application and Installation
The channel selector knob is one of the most frequently used controls on a portable radio, experiencing constant rotation throughout the radio's service life. This knob provides the primary interface for channel selection, allowing operators to quickly move between programmed channels without taking their eyes off their work or the situation at hand. The tactile detent feedback as the knob rotates between channel positions provides confirmation of channel changes without requiring visual verification.
Over time, channel selector knobs can develop various problems including cracks or breaks in the plastic body, loss of the textured grip surface from wear, the internal shaft slot becoming worn or stripped preventing secure attachment, or complete loss of the knob. A damaged or missing channel selector knob makes radio operation extremely difficult or impossible, preventing operators from changing channels and significantly impacting communication capability.
Signs that replacement is needed include a loose knob that spins without engaging the selector mechanism, visible cracks or damage to the knob body, difficulty gripping the knob due to wear, or a knob that has separated from the radio. Because channel selection is such a critical function, any degradation of the knob should be addressed promptly to ensure reliable radio operation.
Replacement is straightforward and can typically be performed by users in the field. The old knob usually pulls straight off the selector shaft. If the knob is stuck, gentle wiggling while pulling may be necessary, but excessive force should be avoided to prevent damage to the shaft mechanism. The shaft and mounting area should be inspected for any damage and cleaned if necessary.
The new knob installs by aligning the internal D-shaped or slotted opening with the corresponding shaft profile and pushing the knob firmly onto the shaft until it seats completely. The knob should fit snugly without excessive play and should rotate smoothly through all channel positions with proper detent feedback. After installation, test the knob by rotating through all channels to verify proper engagement and operation.
This replacement part is essential for maintaining radio functionality and operational efficiency. Organizations should keep spare channel selector knobs on hand as preventive maintenance items, especially for radios used in demanding field environments where knob damage is more likely.
Manufacturer Part Number: 8610012921
Replaces: 8610012920
Part Type: Channel Selector Knob/Control Knob
Material: High-Impact Molded Plastic
Color: Black
Internal Reference: N345
