How do the unused relay/fuse sockets stay waterproof? I only need 3 relays right now but want room for more.

All the seals for the bottom come without any holes, so there is no need to wire the terminals with short pigtails like another answer suggested. You need to actually poke a hole in them to wire it. The holes are already most of the way through, with just a little skin left at the bottom so it's sealed untill you need it. I just pushed a little dowl through the holes I wanted open for wire.

Can i use the fuses in the panel for the same circuit as the relays?

Yes. I used the fuses for the load side of the relays.

Does the kit with harness come pre wired?

Mine did not, but it came with all the clips and everything To go on the wires and then click into it. I used it for my UTV.. It is very nice. The one in the picture that you asking me about. Looks like it is pre-wired and numbered for each Relay.

Can I use one of these as a horn relay, grounding one coil through the steering column with three others supplied current from switches as usual?

A relay is nothing more than a switch with a normally open and a normally closed contact. Yes you can use a relay to energize your horn. The button in the steering column switches ground when you push it. Connect the ground potential coming from the closed horn switch to the relay on terminal 86, connect a constant 30 amp potential12V source to both 85 & 30 and connect 87 to the positive side of the horn. The horn must be grounded to function. When you push the horn button the circuit to the relay coil will close, switching it to energize the horn.

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True MODS 12V Automotive Waterproof 5-Pin Prewired Relay Fuse Box Block Kit

True MODS 12V Automotive Waterproof 5-Pin Prewired Relay Fuse Box Block Kit

Product ID: 547024396

Details

Connector Type
Solder
Contact Material
Silver
Contact Type
Normally
Current Rating
40 A
Mounting Type
Panel Mount

⚡40A max current rating

💧IP65 waterproof protection

🔌6 gang prewired relay sockets

¥21075

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Description

🔧 Upgrade your ride’s electrical game with True MODS — power, protection, and precision in one kit!

WEATHERPROOF WARRIOR - IP65-rated nylon 66 housing keeps your system safe rain or shine.
ALL IN ONE CONTROL HUB - Includes 6 Bosch-style 5-pin relay slots, 10 fuse holders, and complete wiring accessories.
PLUG PLAY SIMPLICITY - Prewired 12 AWG/16 AWG harness with color-coded labels for effortless installation.
POWER UP WITH PRECISION - Handle up to 40 amps per relay for robust, reliable circuit control.
UNIVERSAL FIT ANYWHERE - Unique 'Z' shaped brackets let you mount securely under any hood or panel.

The True MODS 12V Automotive Waterproof 5-Pin Prewired Relay Fuse Box Block Kit is a heavy-duty, IP65-rated power distribution solution featuring six 5-pin relay sockets and fuse holders. Designed with durable nylon 66 and prewired with 12 AWG/16 AWG harnesses, it offers universal mounting flexibility and easy installation with color-coded wiring. Perfect for automotive, marine, and UTV applications, it supports up to 40 amps per relay, ensuring reliable and organized circuit management in any environment.

Specifications

ASIN	B0CDZCKBWM
Best Sellers Rank	#11,524 in Automotive ( See Top 100 in Automotive ) #36 in Automotive Replacement Fuse Holders
Brand Name	ONLINE LED STORE
Coil Voltage	12 volts
Connector Type	Solder
Contact Current Rating	40 A
Contact Material	Silver
Contact Type	Normally Closed
Current Rating	40 A
Customer Reviews	4.6 4.6 out of 5 stars (269)
Item Highlight	6 Gang 30A/40A Bosch Style Relay Block Universal Fused Distribution Pre-wired harness for UTV Auto Vehicle Car Marine Boat
Manufacturer	TRUE MODS
Maximum Switching Current	40 A
Maximum Switching Voltage	12 volts_of_direct_current
Minimum Switching Voltage	12 volts
Mounting Type	Panel Mount
Number of Items	1
Number of Packs	1
Operation Mode	Automatic
Part Number	EPSPWR0314
Specification Met	IEC/EN 60947
UPC	810097591295
Upper Temperature Rating	85 °C
Wattage	144 watts

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¥21075

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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