--- product_id: 667490159 title: "RYANSTAR RACING Dual Electric Fan Relay Kit with Radiator Electric Fan Thermostat Kit Fan Temperature Sensor Switch 185 On 175 Off Electric Cooling Fan Thermostat Kit 4 Pin 40 AMP Waterproof Relay Kit" brand: "ryanstar racing" price: "FREE" currency: JPY in_stock: false reviews_count: 5 url: https://www.desertcart.jp/products/667490159-ryanstar-racing-dual-electric-fan-relay-kit-with-radiator-electric store_origin: JP region: Japan --- # RYANSTAR RACING Dual Electric Fan Relay Kit with Radiator Electric Fan Thermostat Kit Fan Temperature Sensor Switch 185 On 175 Off Electric Cooling Fan Thermostat Kit 4 Pin 40 AMP Waterproof Relay Kit **Brand:** ryanstar racing **Price:** FREE **Availability:** ❌ Out of Stock ## Quick Answers - **What is this?** RYANSTAR RACING Dual Electric Fan Relay Kit with Radiator Electric Fan Thermostat Kit Fan Temperature Sensor Switch 185 On 175 Off Electric Cooling Fan Thermostat Kit 4 Pin 40 AMP Waterproof Relay Kit by ryanstar racing - **How much does it cost?** FREE with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/667490159-ryanstar-racing-dual-electric-fan-relay-kit-with-radiator-electric) ## Best For - ryanstar racing enthusiasts ## Why This Product - Trusted ryanstar racing brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description Description: [Easy Installation] This dual fan wiring harness kit includes a straightforward wiring diagram, making it simple to wire your dual electric fans. Connect the RED wire to the 12VDC positive battery terminal, the COFFEE wire to the fan positive terminal, the BLACK wire to the ignition, and the GREY wire to the sending unit. This kit is a direct replacement part compatible with 10, 12, 14, and 16-inch cooling fans. [Temperature Control] The temperature switch activates the fan at approximately 185 degrees Fahrenheit and deactivates it at 175 degrees Fahrenheit. The included temperature sensor features a 3/8-inch pipe thread, and a 1/2-inch adapter is provided for added versatility. [Complete Kit] This electric cooling fan thermostat kit comes with everything you need for installation: a 40A relay, wiring harness, thermostat switch, 3/8 inch to 1/2 inch adapter, inline fuse holder, two 20 amp fuses, one spade connector for the temperature sensor, eight ring terminals, and four wire connectors. This comprehensive kit ensures you have all the necessary components for a seamless setup. [OE Style Thermostat] The included thermostat is designed in OE style for mounting in the cylinder head of the engine or any water jacket if needed. For proper operation, the thermostat must be grounded through its threads to the engine, and the engine itself must be grounded. [High-Profile Fan Compatibility] If you plan to use high-profile fans, you may need to crimp or solder larger wires to accommodate higher current draw. The included 14AWG wires are rated for 15 amps and may not be sufficient for fans with a higher amperage requirement. Material:Plastic And Copper Weight:0.365kg Note: All items will be checked before packing. All items are new and of high quality. Please allow 1-3CM differs due to manual measurement. Review: Worked - Work as described Review: Works fine and is a good value, but the wiring diagram may be confusing. - A good value, but the product wiring diagram was a bit confusing for me. See my attached wiring diagram that helped me clarify. The fans and temperature switch each need their individual grounds, but are not grounded directly to each other like the ZDZD Motors diagram confusingly indicates to me. Remember, like the instructions say, if your radiator is not grounded and/or made from a non metallic substance, you will need to wrap a wire around the temperature switch threads and connect to a ground source, or it will not work. This item saved me a lot of money in the end. ## Features - [Easy Installation] This dual fan wiring harness kit includes a straightforward wiring diagram, making it simple to wire your dual electric fans. Connect the RED wire to the 12VDC positive battery terminal, the COFFEE wire to the fan positive terminal, the BLACK wire to the ignition, and the GREY wire to the sending unit. This kit is a direct replacement part compatible with 10, 12, 14, and 16-inch cooling fans. - [Temperature Control] The temperature switch activates the fan at approximately 185 degrees Fahrenheit and deactivates it at 175 degrees Fahrenheit. The included temperature sensor features a 3/8-inch pipe thread, and a 1/2-inch adapter is provided for added versatility. - [Complete Kit] This electric cooling fan thermostat kit comes with everything you need for installation: a 40A relay, wiring harness, thermostat switch, 3/8 inch to 1/2 inch adapter, inline fuse holder, two 20 amp fuses, one spade connector for the temperature sensor, eight ring terminals, and four wire connectors. This comprehensive kit ensures you have all the necessary components for a seamless setup. - [OE Style Thermostat] The included thermostat is designed in OE style for mounting in the cylinder head of the engine or any water jacket if needed. For proper operation, the thermostat must be grounded through its threads to the engine, and the engine itself must be grounded. - [High-Profile Fan Compatibility] If you plan to use high-profile fans, you may need to crimp or solder larger wires to accommodate higher current draw. The included 14AWG wires are rated for 15 amps and may not be sufficient for fans with a higher amperage requirement. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0D9RY6XC5 | | Brand | ryanstar racing | | Coil Voltage | 12 Volts (DC) | | Connector Type | Wired Connectors | | Connector type | Wired Connectors | | Contact Type | Normally Open | | Contact type | Normally Open | | Current Rating | 40 Amps | | Current rating | 40 Amps | | Customer Reviews | 4.2 out of 5 stars 18 Reviews | | Manufacturer | RYANSTAR RACING | | Manufacturer Part Number | ERC001 | | Minimum Switching Voltage | 12 Volts (DC) | | Mounting Type | Surface Mount, Panel Mount | | Mounting type | Surface Mount , Panel Mount | | Operation Mode | Automatic | | Operation mode | Automatic | ## Product Details - **Brand:** RYANSTAR RACING - **Connector Type:** Wired Connectors - **Contact Type:** Normally Open - **Current Rating:** 40 A - **Mounting Type:** Surface Mount, Panel Mount ## Images ![RYANSTAR RACING Dual Electric Fan Relay Kit with Radiator Electric Fan Thermostat Kit Fan Temperature Sensor Switch 185 On 175 Off Electric Cooling Fan Thermostat Kit 4 Pin 40 AMP Waterproof Relay Kit - Image 1](https://m.media-amazon.com/images/I/71-Qg8IakUL.jpg) ![RYANSTAR RACING Dual Electric Fan Relay Kit with Radiator Electric Fan Thermostat Kit Fan Temperature Sensor Switch 185 On 175 Off Electric Cooling Fan Thermostat Kit 4 Pin 40 AMP Waterproof Relay Kit - Image 2](https://m.media-amazon.com/images/I/61DvizCWmjL.jpg) ![RYANSTAR RACING Dual Electric Fan Relay Kit with Radiator Electric Fan Thermostat Kit Fan Temperature Sensor Switch 185 On 175 Off Electric Cooling Fan Thermostat Kit 4 Pin 40 AMP Waterproof Relay Kit - Image 3](https://m.media-amazon.com/images/I/71ltde13CZL.jpg) ![RYANSTAR RACING Dual Electric Fan Relay Kit with Radiator Electric Fan Thermostat Kit Fan Temperature Sensor Switch 185 On 175 Off Electric Cooling Fan Thermostat Kit 4 Pin 40 AMP Waterproof Relay Kit - Image 4](https://m.media-amazon.com/images/I/71AsW7yN8VL.jpg) ![RYANSTAR RACING Dual Electric Fan Relay Kit with Radiator Electric Fan Thermostat Kit Fan Temperature Sensor Switch 185 On 175 Off Electric Cooling Fan Thermostat Kit 4 Pin 40 AMP Waterproof Relay Kit - Image 5](https://m.media-amazon.com/images/I/61Vi+iOM+eL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Worked *by R***E on 16 June 2026* Work as described ### ⭐⭐⭐⭐ Works fine and is a good value, but the wiring diagram may be confusing. *by W***M on 22 November 2024* A good value, but the product wiring diagram was a bit confusing for me. See my attached wiring diagram that helped me clarify. The fans and temperature switch each need their individual grounds, but are not grounded directly to each other like the ZDZD Motors diagram confusingly indicates to me. Remember, like the instructions say, if your radiator is not grounded and/or made from a non metallic substance, you will need to wrap a wire around the temperature switch threads and connect to a ground source, or it will not work. This item saved me a lot of money in the end. ### ⭐⭐⭐⭐⭐ Works great! *by R***M on 30 January 2025* This is a great setup for retro fitting e fans on your vehicle. The only issue I had with it was one fuse holder, the spade was a little loose, I just used a scribe to push the spade tighter. The other is the sending unit is rated to come on at 185°, mine doesn't activate until 193°. Both issues are not a big deal, just know to expect a little variable on activation temp, once the fans kick on it pulls the temp down quickly. A great product for e fan installation and easy to wire up with good instructions included. Well worth the money! --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/667490159-ryanstar-racing-dual-electric-fan-relay-kit-with-radiator-electric](https://www.desertcart.jp/products/667490159-ryanstar-racing-dual-electric-fan-relay-kit-with-radiator-electric) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-10-18*