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Home/Equipment/Wiring/B2 Audio/4 Gauge Wire Ferrules with Heat Shrink Tubing IS-TFK-4 Secure Electrical Connection
4 Gauge Wire Ferrules with Heat Shrink Tubing IS-TFK-4 Secure Electrical Connection
4 Gauge Wire Ferrules with Heat Shrink Tubing IS-TFK-4 Secure Electrical Connection
4 Gauge Wire Ferrules with Heat Shrink Tubing IS-TFK-4 Secure Electrical Connection
4 Gauge Wire Ferrules with Heat Shrink Tubing IS-TFK-4 Secure Electrical Connection
B2 Audio/Wiring

4 Gauge Wire Ferrules with Heat Shrink Tubing IS-TFK-4 Secure Electrical Connection

25 Pack 4 Gauge Wire Ferrules with Heat Shrink IS-TFK-4 This Listing Includes: (25) 4 Gauge Wire Ferrules with Heat Shrink These 4 Gauge Wire Ferrules with Heat Shrink are the perfect solution for amplifier installations, fuse holders, and distribution blocks. The heat shrink feature ensures that your connections are tightly sealed and protected against external factors, such as moisture and dirt, ensuring long-lasting performance. The ultra-thin sides of these ferrules make them incredibly easy to load with bare wire, ensuring a smooth, clean connection. Once inserted, the set screw crimps the ferrule securely onto the wire, reducing the chances of strands splaying or bending, issues that can cause breaks and lead to power loss or faulty performance. Ideal for use in car audio systems, home theater setups, or any project requiring 4-gauge wiring, these ferrules make your wiring installation process cleaner, simpler, and more reliable. Key Features : 25 Pieces: Provides plenty of ferrules for multiple connections or installations 4 Gauge Size: Perfect for 4 gauge wires, commonly used in amplifier wiring, fuse holders, and distribution blocks Heat Shrink: Ensures a tight, secure seal, protecting the connection from moisture, dirt, and wear Ultra-Thin Sides: Allows for easy loading of bare wire, creating a clean and organized connection Set Screw Crimp: Secures the ferrule tightly around the wire, preventing any splaying or bending of strands Versatile: Ideal for car audio, DIY projects, automotive electrical work, and home theater systems Long-Lasting Durability: Made from high-quality materials to ensure a reliable, secure connection every time
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Specifications

gauge awg
4

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Wire Gauge Selection
Where to Buy
B
B2 Audio USA

Updated 3/17/2026

$10.99Buy Now
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Frequently Asked Questions

What is the B2 Audio 4 Gauge Wire Ferrules with Heat Shrink Tubing IS-TFK-4 Secure Electrical Connection?

The B2 Audio 4 Gauge Wire Ferrules with Heat Shrink Tubing IS-TFK-4 Secure Electrical Connection is a car audio wiring kit made by B2 Audio. View full specifications and where to buy on this page.

How much does the B2 Audio 4 Gauge Wire Ferrules with Heat Shrink Tubing IS-TFK-4 Secure Electrical Connection cost?

The B2 Audio 4 Gauge Wire Ferrules with Heat Shrink Tubing IS-TFK-4 Secure Electrical Connection typically sells for around $11 depending on the retailer and variant. Check the "Where to Buy" section for current pricing from authorized dealers.

Where can I buy the B2 Audio 4 Gauge Wire Ferrules with Heat Shrink Tubing IS-TFK-4 Secure Electrical Connection?

You can purchase the B2 Audio 4 Gauge Wire Ferrules with Heat Shrink Tubing IS-TFK-4 Secure Electrical Connection from authorized dealers listed in the "Where to Buy" section on this page. We recommend buying from authorized retailers to ensure warranty coverage and genuine products.

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