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TRUE MODS 6 Pack 4-Pin 12V Bosch Style Fused Relay Switch Kit [Interlocking Harness Socket Holder] [14 AWG Hot Wires] [SPST] [30 Amp] 12 Volt Automotive relays with Fuse for Auto Cars

4.7 4.7 out of 5 stars 2,064 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice in Automotive Replacement Starter Relays by ONLINE LED STORE

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Purchase options and add-ons

Contact Type Normally Open
Current Rating 30 Amps
Brand ONLINE LED STORE
Operation Mode Automatic
Coil Voltage 12 Volts

About this item

  • Built in fuse socket with included 30A blade fuse with heavy duty 14AWG wires for main contact.
  • Bosch style 4-Pin SPST (Single Pole Single Throw) Relay.
  • 12VDC (14V Max) and 30A High Switching Capability.
  • Wire Specifications: Black - Ground (85), Red - VDC (30), White - Trigger (86), Blue - Output N/O (87).
  • Set includes 6 relays, 6 relay harnesses, and 6 blade fuses.
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$18.99
Get it as soon as Monday, Mar 18
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Sold by OnlineLEDStore and ships from Amazon Fulfillment.
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$25.99 ($5.20/Item)
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Sold by IRHAPSODY® Store and ships from Amazon Fulfillment.
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$9.99 ($2.50/Count)
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This Item
TRUE MODS 6 Pack 4-Pin 12V Bosch Style Fused Relay Switch Kit [Interlocking Harness Socket Holder] [14 AWG Hot Wires] [SPST] [30 Amp] 12 Volt Automotive relays with Fuse for Auto Cars
TRUE MODS 6 Pack 4-Pin 12V Bosch Style Fused Relay Switch Kit [Interlocking Harness Socket Holder] [14 AWG Hot Wires] [SPST] [30 Amp] 12 Volt Automotive relays with Fuse for Auto Cars
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Price$18.99-6% $19.99
Typical:$21.19
$9.99$15.99$24.95-19% $12.14
List:$14.99
Delivery
Get it as soon as Monday, Mar 18
Get it as soon as Monday, Mar 18
Get it as soon as Monday, Mar 18
Get it as soon as Monday, Mar 18
Get it as soon as Monday, Mar 18
Get it as soon as Monday, Mar 18
Customer Ratings
Easy to install
4.6
4.4
4.4
4.8
4.7
4.6
Value for money
4.5
4.6
4.0
4.8
4.6
4.3
Water resistance
4.1
3.7
4.5
4.6
3.8
Easy to use
4.6
5.0
4.8
Sold By
OnlineLEDStore
MNJ MOTOR OFFICIAL
OnlineLEDStore
OnlineLEDStore
OnlineLEDStore
Amazon.com
contact type
Normally Open
Spst
Normally Closed, Normally Open
Normally Closed, Normally Open
Normally Closed, Normally Open
Spst
max switch current
30 amps
30 amps
80 amps
40 amps
40 amps
30 amps
coil voltage
12 volts
12 volts
12 volts
12 volts
12 volts
12 volts
operation mode
Automatic
Electrical,Motor
Automatic
Auto,Manual
Auto,Manual

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From the brand


Product Description

6pc 30A 4-Pin Fused Relay Kit
6pc 30A 4-Pin Fused Relay Kit

True Mods

"Transform Innovative Ideas Into Reality"

SOLID PROTECTION

Combining a relay with a fuse holder just makes sense. The relay controls your circuit the right way and the fuse protects it. Our relays are rated up to 30A and come with 30A ATO/ATC blade fuses. They can be used with the included fuses or you can size the fuse down to match your circuit.

  • Built in fuse socket with included 30A blade fuse.
  • Bosch style 4-Pin SPST (Single Pole Single Throw) Relay.
  • 30A High Switching Capability.
  • Wire Specifications: Black - Ground (85), Red - VDC (30), White - Trigger (86), Blue - Output N/O (87).
  • Set includes 6 relays, 6 relay harnesses, and 6 blade fuses.

30A 4-Pin Relay kit fuse close up.

30A 4-Pin Fused Relay Kit parts.

30A 4-Pin Fused Relay Kit wire colors.

30A 4-Pin Fused Relay Kit interlocking plugs.

FUSE PROTECTED

Simplify your install and save money with these 30A fuse protected relays. Because the fuse is integrated into the relay, there’s no need to install or wire a separate fuse holder.

EASY INSTALL

Standard Bosch style 4 pin relay fit directly into existing relay boxes and simplifies the design and maintenance of custom wiring jobs.

PIGTAIL INCLUDED

Easier to remove, more secure, and better looking than the usual rat’s nest of wires and terminals, the included 6” pigtails and sockets clean up your wiring, shorten repair times, and simplify fault diagnosis.

SIMPLE MOUNTING

No relay box, no problem. The mounting tab quickly mounts your relays to your firewall, roll cage, fender, or switch box. And the sockets, with their interlocking side slots, make it easy to group and mount several relays together.

YOU'RE COVERED

There’s nothing worse getting stuck on the trail at night because your light relay burnt out, losing your radio in the middle of a road trip, or not being able to finish your project because you’re short one small relay. With our 6 piece relay kits, you’ll have enough relays to finish that project, fix your lights on the fly, and keep the road trip rocking all night long.

SIMPLIFY YOUR WIRING PROJECT

Ever tried to pull the back terminal off a firewall mounted relay? Not so easy. Ditch the terminals and the needle-nose pliers with our included sockets and pigtail wiring. The sockets, with their interlocking sides, help keep your relays secure and orderly. And, the color-coded pigtail wiring makes it easier to identify and organize your wires during the install.

Size Image
Size Chart

Details & Specs

  • MPN: EPS179R

What's Included?

  • (6) 4-Pin 14-18 AWG Harness
  • (6) 4-Pin 30A Fused Relay
  • (1) Instruction Manual

Product information

Technical Details

Additional Information

Warranty & Support

Amazon.com Return Policy:Amazon.com Voluntary 30-Day Return Guarantee: You can return many items you have purchased within 30 days following delivery of the item to you. Our Voluntary 30-Day Return Guarantee does not affect your legal right of withdrawal in any way. You can find out more about the exceptions and conditions here.
Product Warranty: For warranty information about this product, please click here

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TRUE MODS 6 Pack 4-Pin 12V Bosch Style Fused Relay Switch Kit [Interlocking Harness Socket Holder] [14 AWG Hot Wires] [SPST] [30 Amp] 12 Volt Automotive relays with Fuse for Auto Cars


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Customer reviews

4.7 out of 5 stars
4.7 out of 5
2,064 global ratings

Customers say

Customers like the performance, quality, ease of use, fuse and value of the relay. They mention that it works well, the instructions are clear and that it comes with a serviceable fuse. They appreciate the built-in fuse, saying it's a good idea to tidy up wiring. Overall, customers are satisfied with appearance, compactness, and delivery.

AI-generated from the text of customer reviews

96 customers mention93 positive3 negative

Customers are satisfied with the performance of the relay. They say it works well, has built-in fuses, and has no problems. They also mention it's a reliable upgraded solution and easy to switch out.

"Not a whole lot to say, these work great! Seem like a solid value for the money. I used them to set up some fog and DRL lights on a customer's car...." Read more

"...Worked perfectly as advertised." Read more

"...no problems with the relays. I have not blown a fuse yet...." Read more

"Worked great when I rewired my side x side" Read more

70 customers mention66 positive4 negative

Customers are satisfied with the quality of the relay. They mention that it is of very good quality, not cheap, and has quality parts that last. It is a solid popular seller and highly recommend it.

"...They work good and have held up just fineThe built in fuse holder is super handy, along with the included pigtails" Read more

"...It's also very good quality, not cheap feeling. When it's mounted, it looks great and nothing moves. Can't beat the price either." Read more

"...It looks and feels like a high quality relay so if it were not for the aluminum wire and terminals I likely never would have read and researched as..." Read more

"Good product" Read more

49 customers mention46 positive3 negative

Customers find the relay easy to use and install. They mention that it comes with clear instructions and diagrams, making it easy to add lights or radios. The clip makes for easy attachment, and the pre-installed fuse makes for a neat installation. Customers also appreciate the interlocking feature, which makes for an easy fix.

"The relay with built in fuse makes wiring clean and simpler. It's also very good quality, not cheap feeling...." Read more

"...Used one for a fuel pump relay on my son’s Fiat. Easy to mount with the included mounting clips. Easy to wire with included pigtails...." Read more

"...one in or tap into one, the integrated fuse also makes it easier to trouble shoot...." Read more

"Interlocking feature makes for a neat installation" Read more

46 customers mention41 positive5 negative

Customers like the built-in fuse of the relay. They mention it's a good idea to tidy up wiring, and it'll save you the trouble of installing a fuse block. Some appreciate the serviceable fuse on the relay, which eliminates the need to add a separate fuse block to the power circuit. Overall, customers are satisfied with the built in fuse holder and the included pigtails.

"...They work good and have held up just fineThe built in fuse holder is super handy, along with the included pigtails" Read more

"I absolutely love these relays, the integrated fuse makes wiring easier and cleaner since you dont have wiring one in or tap into one, the..." Read more

"...-Fuse holder built into the relay. I've never seen that and it does save adding a fuse in the circuit elsewhere...." Read more

"Works exactly as stated. Nice feature with individual fuse and bracket." Read more

35 customers mention35 positive0 negative

Customers appreciate the value of the relay. They say it's the best deal in automotive type relays, with a convenient pre-installed fuse. They also appreciate the quality and the inexpensive wireless remote control.

"Not a whole lot to say, these work great! Seem like a solid value for the money. I used them to set up some fog and DRL lights on a customer's car...." Read more

"...I found this deal with six that had fuses and connectors. Way better price than a Bosch at my local parts place. Plus it is fused. Double win!..." Read more

"...create 3 trigger wires and now the dump trailer has an inexpensive wireless remote control." Read more

"Very good quality for the money. The onboard fuse makes things much easier to diagnose when issues arise." Read more

25 customers mention25 positive0 negative

Customers are satisfied with the appearance of the relay. They mention it has a great design, looks like a fine product, and the integrated fuse is convenient. They also appreciate the clean appearance under the hood and the clever design. Overall, customers are happy with the product's appearance and recommend it to others.

"...When it's mounted, it looks great and nothing moves. Can't beat the price either." Read more

"...-The socket style wire holder! Wow, very nice idea and really the only reason I didn't return the relays.-Fuse holder built into the relay...." Read more

"...Nice design! Shipping was a bit slow, (about a week and a half) but they were all in a padded box and arrived safely..." Read more

"...fuse is popped without removing it definitly helped keep 15 relays looking clean and professional and kinda helps less expeianced people get a pro..." Read more

12 customers mention12 positive0 negative

Customers appreciate the compactness of the relay. They say it saves space and wiring, and is efficient and easy to use. Customers also mention that the fuse is built in, making it a great product.

"Perfect for what I was needing them for nice and compact" Read more

"I have never seen relays with a fuse on them before. Save lots of time and space...." Read more

"...This saves you cost and time. Well worth it." Read more

"...the convenience of circuit protection with the relay is a time and material saver" Read more

9 customers mention9 positive0 negative

Customers are satisfied with the delivery of the relay. They mention that it is a great product, fast shipping, and easy to install.

"Everything came fast and exactly like it was supposed to. Haven't used them yet so can't review their usability yet." Read more

"good product fast shiping easy install" Read more

"Nice relays, with fuses.Great value, quick shipping too." Read more

"Great Items, shipped quickly. Thank you." Read more

works for me
5 Stars
works for me
I bought few of these 30amps with fuses 30amps with out fuses, 60 and 80 amps to install in my drag truck making it a street weekend truck. Cheaper buying them here than going to local parts store. I have 4 ground wires going to the body in different location. Power items - dual fans, water pump, fuel pump, transmission cooler mounted under the truck. All is on a ground wire coming off grounded wire - not like most people will just ground a item to the body. I like to make sure I have a very good ground. Also like to make sure when the truck is running at idle I have14 volts inside the truck cab at the ignition switch and power going out of it. The switches work for me no problem with anyUpdate 10/26/2019no problems with the relays. I have not blown a fuse yet. Some people could be having problems, Not a good ground source, wiring gauge to small, Amp draw on start up exceed 30 amps on. - On fans amp draw can be high when 1st turn on. All power source should be check amp draw on start up so you can match the relay to amps being used. I have 4 ground wiring. I have dual fans 2800 cfm each, fuel pump 14gp, water pump, trans fan cooler, My fans on start up both pull 32 to 35 amps then runs at about 22amps - So my relays on the fans I'm using 60/80 amps. Everything els I'm using 30amp relays. at idle with these on fans both, fuel pump, water pump, trans cooler fan is 30 amp relay my amp draw is 68 amps. For some of the people having problems I hope this help. My wiring gauge 8 on the front fans, 10 on the rest. I'm not using the the wiring that came with it.
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