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Electric Fuel Pump Relay Kit 40 AMP Waterproof Relay Kit Heavy Duty Long Wires Relay, Fit 12V Relay Switch Kit P/N 30247

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$19.99

$ 8 .99 $8.99

In Stock

About this item

  • 【Easy Installation】The electric fuel pump relay kit comes with installation diagrams and color-coded wiring, making it easy to install even for those with little experience in automotive electrical work.
  • 【Premium Conductive Material】Tinned copper wiring offers better durability and oxidation resistance than pure copper, effectively isolating copper from air contact and enhancing the wire's corrosion resistance, suitable for long-term stable operation in electrical systems.
  • 【Powerful Functionality】Heavy-duty long wires are more durable, maintaining a constant fuel pump pressure while preventing overload damage to the electrical system from the electronic fuel pump. Extend the life of your beloved car.
  • 【High Quality Design】 The kit includes a robust 40-amp heavy-duty waterproof relay and a 30A inline waterproof fuse box. This ensures that the fuse box can effectively protect the electrical system from overloads or short circuits in extreme weather or unexpected situations.
  • 【Wide Compatibility】This electric fuel pump relay kit has a 40-amp high-power carrying capacity, ensuring stable and efficient electrical current transmission. It guarantees sufficient power supply to your fuel pump under any working conditions. It is compatible with any 12v-activated device up to 40 amps, eliminating compatibility concerns.



Product Description

Electric Fuel Pump Relay Kit 40 AMP

Reliable Helper

  • The Electric Fuel Pump Relay Kit is a must-have for any car owner looking to improve the performance and reliability of their vehicle.
  • This innovative relay kit features a waterproof design that ensures durability even under the harshest driving conditions.
Electric Fuel Pump Relay Kit

Newbie Friendly

  • One of the outstanding features of this electric fuel pump relay kit is the simple installation process, making it ideal for DIY enthusiasts or professional mechanics.
  • With our user-friendly kit, you can say goodbye to complicated setups and complete the installation with ease.
  • Whether you're a seasoned automotive enthusiast or a novice looking to upgrade your vehicle, this relay kit is the ideal solution for optimizing fuel pump performance.
Electric Fuel Pump Relay Kit for car truck
Electric Fuel Pump Relay Kit for car truck

Wide Compatibility

  • This electric fuel pump relay kit has a 40-amp high-power carrying capacity, ensuring stable and efficient electrical current transmission.
  • It is compatible with any 12v-activated device up to 40 amps, eliminating compatibility concerns.
  • Experience the difference in your vehicle's fuel system by choosing one of our electric fuel pump relay kits.
  • Upgrade to a reliable, efficient solution that will improve your car's performance and give you peace of mind.

Vicki Kapraun
2025-09-01 10:20:44
Made nice
A. Bullock
2025-08-29 11:53:32
I used this to control an electric fuel pump (temporarily) for my 1979 C10. I took the lead off the running/parking lights as the trigger wire, made up the battery connections, then ran the lead to the fuel pump. The insulation on the conductors is really nice and doesn't get super stiff in cold weather, which I appreciated. I also like that they give you a 30A fuse along with a 40A relay- others have mentioned that it seems strange, but I appreciate having 10A of "headroom" on the relay to make sure the fuse blows before the relay would ever get fried. While this is labeled as a relay for a fuse pump, there's no reason you couldn't use this for anything else- lighting, a high amp 12V outlet, small air compressor, etc.
PracticalPurchaser
2025-08-03 17:58:11
Has all the parts to do the job. Includes the relay and a protection fuse. The wires seem long enough for most applications. I plan to use it to control something else but the gauge seems to be thick enough for a fuel pump application. Only nit is that the wire isn’t copper and the insulation is rather stiff.
Dmitrii
2025-06-30 14:19:37
Good quality relay. I'm using it to hook up my off-road lights (which are not even for off roading) from my high beams so those turn on at the same time. It's nice to have a kit that includes pretty much all you really need including an inline fuse.
Desert Lion
2025-06-02 14:09:17
I'm outfitting a new (to me) Class B RV camper van with several accessories. The switch panel I have won't handle much current, so I picked this up in hopes it would allow me to connect a larger device and still control it from a central location. The load wiring is all 10 AWG, which is more than sufficient for a 40A DC load. The included relay is marked as rated for 40A. Interesting that the included fuse is 30A, so you may need to pull a replacement from your box if you really need the full rated current.Having the relay connector already wired into the harness makes using this very simple - the package includes crimp insulated ring connectors for the wire ends. There is also a metal bracket to mount the relay securely and wire zip ties to secure a neat installation. The only downside is that all the wiring expects a chassis ground. That won't work with my fiberglass camper body, but running a separate 10 AWG black wire for the return is pretty simple.Whether you use this for its intended use as a replacement fuel pump relay or as a low current control for a higher current load, you will be pleased with the final result.
Techy
2025-03-06 09:38:29
Its a bit pricey, but you are getting tinned copper wire in thick gauges. The insulation of the wire is flexible and the identification is printed clearly. The crimp connections are solid, and the connector itself is a substantial bit of plastic with good molding. The relay is a common part with a built in mounting bracket..The kit does come with all the parts you need to install the relay, including mounting hardware and zip ties. It is a very thoughtful and inclusive kit. I would like to see maybe 2 extra but splices included. One so you can shorten the fused wire if you like, and another just in case you made a mistake. This kit is obviously for people who don't do a lot of electrical and don't have all the terminations in stock. With that in mind, an extra terminal or but splice connector at this price point, won't break the seller's bank, and add a lot of value to the kit..If you need to install a relay, and don't want to source out all the bits to do it individually, this kit is for you.
MicheleH
2024-12-18 12:03:19
Heavy duty . Good cable
Sassy
2024-12-12 13:57:16
Needed a fuel pump repay for my VW- directions included and solid working not much else to say. Pricing could be a bit less but happy with the product.