{"product_id":"kacola-fuel-pump-relay-kit-40a-waterproof-long-tinned-copper-wires-12v-heavy-duty","title":"KACOLA Fuel Pump Relay Kit 40A Waterproof, Long Tinned-Copper Wires, 12V Heavy-Duty","description":"\u003cp\u003e\u003cstrong\u003eKACOLA's Electric Fuel Pump Relay Kit is a waterproof, heavy-duty 40A relay and 12V switch wiring kit designed to protect and power electronic fuel pumps with long, tinned-copper leads for reliable performance.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWhen upgrading or replacing a vehicle’s fuel pump, the wiring and relay that feed it are as important as the pump itself. This kit bundles a rugged 40-amp waterproof relay, a 30A inline waterproof fuse box, color-coded long tinned-copper wires, and a clear installation diagram so you can eliminate voltage drop, prevent overloads, and reduce heat at the pump’s connector. The components are built to resist corrosion and moisture, making them suitable for harsh engine-bay or off-road conditions.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this relay kit protect my vehicle’s electrical system?\u003c\/h3\u003e\n\u003cp\u003eThe kit isolates the fuel pump’s current draw through the heavy-duty relay and fuse, reducing the load that runs through the original factory switch and wiring. That prevents wiring overheating and potential shorts while ensuring the pump receives steady current.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e40A waterproof relay handles high current without overheating\u003c\/li\u003e\n  \u003cli\u003e30A inline waterproof fuse box for overcurrent protection\u003c\/li\u003e\n  \u003cli\u003eTinned copper wires resist oxidation and maintain conductivity\u003c\/li\u003e\n  \u003cli\u003eColor-coded leads simplify correct connections to existing harnesses\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill the long wires and heavy-duty parts improve pump performance?\u003c\/h3\u003e\n\u003cp\u003eLonger, heavier-gauge tinned-copper wiring reduces voltage drop between the battery and pump, providing a more consistent voltage under load. Stable voltage helps the pump maintain designed pressure and can reduce strain on the motor, which supports longer service life.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHeavy-duty gauge minimizes voltage loss at higher currents\u003c\/li\u003e\n  \u003cli\u003eLong wires give flexibility for mounting the relay and fuse away from heat sources\u003c\/li\u003e\n  \u003cli\u003eTinned copper improves longevity in wet or salty environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs this kit easy to install for DIYers and mechanics?\u003c\/h3\u003e\n\u003cp\u003eYes—the kit is intended for straightforward installation by someone with basic automotive wiring experience. Color-coded wiring and included diagrams guide correct connections, and the waterproof connectors help create a durable installation even if exposed to moisture.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eClear, color-coded wires reduce wiring errors\u003c\/li\u003e\n  \u003cli\u003eInstallation diagram included for step-by-step guidance\u003c\/li\u003e\n  \u003cli\u003eMountable relay and fuse housing for neat, secure placement\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich vehicles or systems will this relay kit work with?\u003c\/h3\u003e\n\u003cp\u003eDesigned for any 12V-activated device drawing up to 40 amps, this kit is compatible with most electronic fuel pumps and other 12V accessories that need a reliable, high-current switching solution. It’s a universal-style module meant to integrate with aftermarket or factory fuel pump setups.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSupports 12V electric fuel pumps up to 40A\u003c\/li\u003e\n  \u003cli\u003eWorks with aftermarket installations and many OEM systems\u003c\/li\u003e\n  \u003cli\u003eUniversal connectors fit common automotive harnesses\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: Installers, automotive DIY enthusiasts, and professional mechanics who want a compact, weather-resistant relay solution for fuel pumps and other 12V accessories. If you’re replacing worn wiring, upgrading to a higher-flow pump, or relocating the relay and fuse away from heat and vibration, this KACOLA kit delivers durable materials and clear wiring to achieve a safer, more reliable electrical setup.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I use this relay kit with any 12V fuel pump?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, it supports 12V devices drawing up to 40 amps. Confirm your pump’s current draw does not exceed 40A.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does the kit include installation instructions?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, the kit includes a wiring diagram and color-coded leads to simplify installation for DIYers and technicians.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"KACOLA","offers":[{"title":"Default Title","offer_id":67591700447417,"sku":"B0CNVRTNPY","price":65.03,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/kacola-relay-kit-front-packaging.jpg?v=1790557860","url":"https:\/\/redleafauto.ca\/products\/kacola-fuel-pump-relay-kit-40a-waterproof-long-tinned-copper-wires-12v-heavy-duty","provider":"Redleaf Auto","version":"1.0","type":"link"}