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Nilight Electric Fuel Pump Relay Kit Wiring Harness 40 AMP Waterproof Relay Heavy Duty 10 Gauge Cables w/30 AMP Blade Fuse 12V System for Trucks Cars RVs Marine Boats Trailers

  • Based on 19 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Tuesday, Oct 14
Order within 15 hours and 21 minutes
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Features

  • Wide Application:The electric fuel pump relay kit is 40 Amp and universal for 12V ststem. Relay is 40A,Fuse is 30A. Fit for any device with 12V activation but no more than 40 amperes.
  • Easy to install:All wires are color-coded. And an easy-to-follow wiring diagram is included in the package. 10 feet 10 meter red wire to +12V battery, 6 feet 10 meter orange wire to fuel pump, 2 feet 16 meter brown wire to 12V trigger switch, 4 feet 16 meter black wire to chassis ground. Just plug and play.
  • Heavy Duty Long Wires:Electric fuel pump wiring harness relay kits are manufactured with high quality materials and advanced processes for high reliability and stability. With heavy duty long wire, it is easy to connect the pump directly to the battery, ensuring that the high pressure fuel pump gets the required voltage. Keep the fuel pump pressure constant to prevent the voltage drop of the fuel pump and the overload of the fuel pump current from damaging the vehicle electrical system.
  • Waterproof:40 Amp Heavy duty waterproof relay and inline waterproof fuse box. The heavy duty design make it safe and durable so it can work in any harsh conditions.
  • Package Includes : 1 x relay base with harness, 1 x 40 amp heavy duty waterproof relay, 1 x in-line waterproof fuse holder, 1 x 30 Amp fuse, 3 x heat shrink ring terminals, 2 x wire connectors, 1 x wiring diagram,

Connector Type: Plug-In


Contact Type: Normally Open


Current Rating: 30 Amps


Mounting Type: Surface Mount


Brand: Nilight


Connector Type: ‎Plug-In


Contact Type: ‎Normally Open


Current Rating: ‎30 Amps


Mounting Type: ‎Surface Mount


Brand: ‎Nilight


Operation Mode: ‎Automatic


Wattage: ‎4.5E+2


Coil Voltage: ‎12 Volts


Maximum Switching Current: ‎40 Amps


Maximum Switching Voltage: ‎12 Volts


Minimum Switching Voltage: ‎12 Volts (DC)


Specification Met: ‎CE


UPC: ‎840323918909


Manufacturer: ‎Nilight


Item Weight: ‎1.05 pounds


Product Dimensions: ‎10 x 2 x 2.7 inches


Country of Origin: ‎China


Item model number: ‎50225A


Manufacturer Part Number: ‎50225A


Date First Available: February 18, 2024


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Oct 14

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Worked great
Looks like good quality
Reviewed in the United States on March 1, 2025 by DT

  • Good quality
It was just what I needed, good quality
Reviewed in the United States on March 10, 2025 by Bruggie1

  • Works great on my MT07
I'm using this kit to toggle my ABS on the fly on my Yamaha MT07. This is so I can practice stunt rides in the parking lot. Much quicker than taking the seat off and pulling the fuse
Reviewed in the United States on December 25, 2024 by Ty

  • Fuse holder is close to relay
Good kit. Only complaint is the location if the fuse holder. It should be closer to the end of the wire and not so close to the relay to protect the length of the cable from the battery. But I get it: if it would be closer to the end one could not trim the wire without cutting off the fuse holder. Recommendation: provide measurements from fuse holder to really in product listing. ... show more
Reviewed in the United States on March 14, 2025 by andreas h.

  • Great for fuel pumps
Used to run Holley fuel pump in tank. Wires are good quality.
Reviewed in the United States on April 26, 2025 by Jonathan

  • Good quality
Really good quality for the money
Reviewed in the United States on December 6, 2024 by Fernand F.

  • Great Part
Work great
Reviewed in the United States on August 15, 2024 by Elzy Washington

  • Solid kit. True to gauge wiring.
Pure tinned copper, excellent quality wiring harness. I'm only pulling ~20A through it but it's been rock solid. Not just for fuel pumps - use it for any accessory you want.
Reviewed in the United States on June 11, 2024 by LiveSideways

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