---
product_id: 266327758
title: "K-4A CB RADIO ANTENNA HEAVY DUTY SO-239 STUD MOUNT (BULK)"
brand: "firestik"
price: "R769"
currency: ZAR
in_stock: true
url: https://www.desertcart.co.za/products/266327758-k-4a-cb-radio-antenna-heavy-duty-so-239-stud
store_origin: ZA
region: South Africa
---

# Heavy-duty construction Universal fit for Firestik 1/2" hole compatibility K-4A CB RADIO ANTENNA HEAVY DUTY SO-239 STUD MOUNT (BULK)

**Brand:** firestik
**Price:** R769
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate Your Communication Game!

## Quick Answers

- **What is this?** K-4A CB RADIO ANTENNA HEAVY DUTY SO-239 STUD MOUNT (BULK) by firestik
- **How much does it cost?** R769 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/266327758-k-4a-cb-radio-antenna-heavy-duty-so-239-stud)

## Best For

- firestik enthusiasts

## Why This Product

- Trusted firestik brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Heavy-duty design ensures durability in any environment.
- • **Bulk Convenience:** No retail packaging means more value for your money.
- • **Easy Installation:** Designed for a straightforward setup with a 1/2" hole.
- • **Professional Quality:** Engineered for the discerning user who demands reliability.
- • **Unmatched Versatility:** Fits all Firestik antennas and mounts seamlessly.

## Overview

The FIRESTIK K-4A CB Radio Antenna is a heavy-duty SO-239 stud mount designed for universal compatibility with all Firestik antennas and mounts. This bulk item comes without retail packaging, making it a cost-effective choice for professionals seeking reliable communication solutions.

## Description

FIRESTIK K-4A CB RADIO ANTENNA HEAVY DUTY SO-239 STUD MOUNT (BULK)

## Features

- FOR ANY 1/2" HOLE
- FITS ALL FIRESTIK ANTENNAS AND MOUNTS
- BULK ITEM. NO RETAIL PACKAGE

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0765QHQMZ |
| AntennaDescription | Radio |
| Best Sellers Rank | #133 in Two-Way Radio Accessories |
| Brand | FireStik |
| Color | Silver |
| Customer Reviews | 4.7 4.7 out of 5 stars (3,671) |
| Impedance | 50 Ohms |
| Item Dimensions L x W x H | 6"L x 6"W x 6"H |
| Item Weight | 0.02 Pounds |
| Manufacturer | Firestik |
| Number of Channels | 40 |
| UPC | 714833139720 757183692668 |

## Product Details

- **Antenna:** Radio
- **Brand:** FireStik
- **Colour:** Silver
- **Number of channels:** 40
- **Impedance:** 5E+1 Ohm

## Images

![K-4A CB RADIO ANTENNA HEAVY DUTY SO-239 STUD MOUNT (BULK) - Image 1](https://m.media-amazon.com/images/I/81MHTlwnrVL.jpg)

## Questions & Answers

**Q: In assembling in the mounting bracket, you have 3 washers. 1 flat, 1 locking and 1 plastic isolator. as far as the isolator, top or bottom?**
A: Antenna on top, then the plastic washer, then the metal mounting bracket, then the flat washer, then the locking washer. The antenna has to be isolated from the mounting bracket so make sure it is centered on the plastic washer or it will short out your system and the base of the antenna mount has to be grounded. 

You should check your SWR ratio before talking on your radio and if it is above 1.5 learn how to adjust it. If you know how to adjust it and still can not get a good reading try adding a ground wire from the antenna base to a metal ground. Certain trucks like the Mack Granite have isolated mirrors and require the ground wire.

**Q: I am looking to remove my firestik and put a ham antenna there. looks like this is the adapter? 3/8-24 rf female to sma female adapter**
A: This is 3/8 x 24 to SO239.

**Q: How would you mount these antennas behind the cab of a f 550 flat bed?**
A: You would need the L-bracket to mount to the back of the cab. If you bed has the security frame at the cab you can mount to that with a bracket.

**Q: how many come in the package?**
A: One and it sucks it fell apart using a 4 foot fire stick antenna

## Frequently Bought Together

- FIRESTIK K-4A CB RADIO ANTENNA HEAVY DUTY SO-239 STUD MOUNT (BULK)
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- FireStik FL3-B Three Foot FireFly Antenna With Tuneable Tip (Black)

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**Shop now:** [https://www.desertcart.co.za/products/266327758-k-4a-cb-radio-antenna-heavy-duty-so-239-stud](https://www.desertcart.co.za/products/266327758-k-4a-cb-radio-antenna-heavy-duty-so-239-stud)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-04-23*