True Mods Waterproof 12V Fuse Relay Box Kit - 6 Gang Power Hub

In this review the True Mods Waterproof 12V Fuse Relay Box Kit is examined as a practical wiring solution for hobbyists and professionals who need a compact, weatherproof power distribution block. The biggest reason to consider it is its balance of rugged construction and a pre-wired harness that simplifies organizing multiple independent circuits; the kit's six Bosch-style relay sockets and six fuse holders make it a straightforward way to consolidate wiring for automotive, marine, or off-road projects.

Key Features

• Pre-wired harness: The included 12 AWG and 16 AWG long pigtail wiring harness saves time and reduces wiring errors during installation by providing color-coded wires for each gang.
• Six relay and fuse slots: Six Bosch-style 5-pin relay sockets and six fuse holders let you manage multiple independent circuits from a single, organized enclosure.
• Durable construction: Made from nylon 66 with an IP65 waterproof rating, the box is designed to resist moisture and dirt in under-hood or exposed installations.
• Universal mounting: The included Z-shaped brackets allow flexible mounting locations so the relay box can be secured almost anywhere in the engine bay or on a frame rail.
• Complete kit contents: The package includes relays (30A/40A), fuses, a 6-wire-to-1 terminal ring, connectors, terminals, and silicon seals for a ready-to-install solution.

Who It's For

This kit is ideal for DIY mechanics, custom fabricators, and anyone doing wiring work such as LS swaps, auxiliary lighting installs, or adding accessories on a car, truck, boat, or UTV who wants a neat, centralized relay and fuse solution. The pre-wired harness and color-coded leads make it accessible for those comfortable with basic electrical work and crimping.

Those who should look elsewhere include buyers who need an integrated breaker or an electronic smart fuse system, or installers who require a fully sealed submersible unit beyond IP65 protection. Also, if you need a pre-terminated plug-and-play harness without any splicing, a vehicle-specific loom may be a better choice.

Pros & Cons

Pros

• Solid build quality with a weatherproof enclosure that stands up to under-hood conditions.
• Comprehensive kit pieces reduce the need to source additional hardware for most installs.
• Pre-wired 12 AWG power conductors and color-coded leads speed up wiring and reduce mistakes.
• Flexible Z-bracket mounting allows secure placement in tight or awkward locations.

Cons

• Some users report brittle tabs that can break during opening or handling, so careful disassembly is recommended.
• Installation can be fiddly for first-time builders because routing and securing six pigtails requires planning.

Specifications

Voltage	12V DC
Relay type	Bosch-style 5-pin 30A/40A
Number of gangs	6 relay sockets and 6 fuse holders
Wiring gauge	12 AWG and 16 AWG pre-wired harness
Enclosure material	Nylon 66
Waterproof rating	IP65
Mounting	Universal Z-shaped brackets

Our Verdict

The True Mods waterproof 6 gang fuse relay box is a dependable, value-minded solution for consolidating multiple electrical circuits in automotive, marine, and off-road projects. It offers rugged construction, a helpful pre-wired harness, and the mounting flexibility most builders need; just handle the housing tabs with care during assembly. For those wanting a straightforward, weather-resistant relay and fuse hub, this kit delivers strong utility and good value.

Frequently Asked Questions

Can this relay box be mounted in the engine bay?
Yes. The IP65 rating and included Z-shaped brackets make it suitable for under-hood mounting where it will encounter splashes and dust but not full submersion.

Are relays and fuses included in the kit?
Yes. The kit includes Bosch-style 5-pin relays (30A/40A), fuses, and associated terminals and seals so the unit is ready to wire into a vehicle.

What wire sizes are provided for power and accessories?
The pre-wired harness uses robust 12 AWG for power feeds and 16 AWG for accessory pigtails, with color-coded leads to simplify installation.