40A Inline Fuse Holder for Car Amplifier & Subwoofer Wiring

Car Inline Fuse Holder – 40A Circuit Protection for Amplifier & Subwoofer Wiring

Keep your car audio wiring organized and properly protected with this 40A Inline Fuse Holder. Designed for amplifier cable runs, subwoofer installations, and aftermarket audio upgrades, this compact zinc alloy holder makes circuit management clean, straightforward, and installer-friendly. Made in Mainland China.

Why Choose This Inline Fuse Holder?

• Dedicated 40A Inline Protection: Adds a purpose-built 40A fuse point directly into your amplifier or subwoofer cable run — no guesswork, no vague fit claims. The included 40A fuse insert gives you a clear amperage reference for aligned replacement planning.
• Durable Zinc Alloy Construction: Built with a zinc alloy component, screw terminals, and metal hardware for a solid, long-lasting connection in demanding automotive environments.
• Removable Clear Cover: The transparent cover lets you quickly inspect the fuse status without disassembling the unit, saving time during installation checks and service swaps.
• Black Housing for a Clean Look: Sleek black housing blends neatly into engine bays and under-dash cable routing, keeping your install looking tidy and professional.
• Easy Screw Terminal Setup: Tool-friendly screw terminals simplify wiring connections for service work, aftermarket upgrades, and organized routing tasks.

Specifications

• Component Material: Zinc Alloy
• Size: Approx. 102mm / 4.02 in
• Rated Current: 40A
• Application: Car audio modification, inline circuit use, amplifier and subwoofer wiring
• Housing Color: Black with clear cover

Package Includes

• 1 × Inline Fuse Holder (Circuit Box)
• 1 × 40A Fuse Insert
• 1 × Installation Manual

Important Notes

• Please allow ±1–2 cm tolerance due to manual measurement. Verify dimensions before ordering.
• Actual product color may vary slightly from screen images due to monitor calibration differences.

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Frequently Asked Questions

Q: What is the rated current for this inline fuse holder?

A: This inline fuse holder is rated at 40 amps (40A), making it suitable for amplifier wiring, subwoofer cable runs, and other car audio circuit applications that require a 40A fuse point.

Q: What material is the inline fuse holder made from?

A: The fuse holder is constructed from zinc alloy with metal hardware and screw terminals, providing durability and a secure connection in automotive wiring environments.

Q: Is everything I need for installation included in the package?

A: Yes — the package includes 1 inline fuse holder, 1 × 40A fuse insert, and 1 × installation manual, giving you a complete, ready-to-install replacement or upgrade bundle for your car audio wiring project.

Q: Can this fuse holder be used for both amplifier and subwoofer wiring?

A: Absolutely. This holder is designed for use in amplifier cable runs, subwoofer wiring, and aftermarket car audio upgrades where an inline fuse holder format is needed for orderly circuit management and protection.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.