---
product_id: 2812858
title: "Hayden 3651 Universal Add-On Adjustable Thermostatic Fan Control Kit, Custom Fitting & Wiring Required"
brand: "hayden automotive"
price: "€ 71.85"
currency: EUR
in_stock: true
url: https://www.desertcart.it/products/2812858-hayden-3651-universal-add-on-adjustable-thermostatic-fan-control-kit
store_origin: IT
region: Italy
---

# Supports dual fans up to 30 Amps Thread-in probe for secure radiator fit Adjustable temp range 132°F–248°F Hayden 3651 Universal Add-On Adjustable Thermostatic Fan Control Kit, Custom Fitting & Wiring Required

**Brand:** hayden automotive
**Price:** € 71.85
**Availability:** ✅ In Stock

## Summary

> 🌬️ Stay cool, stay ahead — control your engine’s heat like a pro!

## Quick Answers

- **What is this?** Hayden 3651 Universal Add-On Adjustable Thermostatic Fan Control Kit, Custom Fitting & Wiring Required by hayden automotive
- **How much does it cost?** € 71.85 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/2812858-hayden-3651-universal-add-on-adjustable-thermostatic-fan-control-kit)

## Best For

- hayden automotive enthusiasts

## Why This Product

- Trusted hayden automotive brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Complete Control Kit:** Includes wire harness and AC override relay for professional-grade, customizable fan management.
- • **Dual Fan Power Boost:** Effortlessly powers two high-performance fans with up to 30 Amps, ensuring rapid heat dissipation.
- • **Precision Temperature Control:** Customize cooling activation between 132°F and 248°F for optimal engine performance.
- • **Seamless Radiator Integration:** Screw-in probe design fits directly into your radiator or water jacket for easy, secure installation.
- • **Corrosion-Resistant Durability:** Zinc-coated terminals and quality gaskets guarantee long-lasting, reliable operation under harsh conditions.

## Overview

The Hayden 3651 Universal Add-On Adjustable Thermostatic Fan Control Kit offers precise temperature regulation from 132°F to 248°F, powering two electric fans up to 30 Amps. Featuring a corrosion-resistant zinc-coated terminal and a screw-in probe for direct radiator installation, this kit ensures efficient, customizable cooling performance. Designed for professional custom fitting and wiring, it includes all necessary components for seamless integration with Rapid-Cool and super duty electric fans.

## Description

Hayden 3651 Universal Add-On Adjustable Thermostatic Fan Control Kit, Custom Fitting & Wiring Required

## Features

- Adjustable thermostatic fan control
- For use with Rapid-Cool and super duty electric fans
- Contains gaskets, o-rings, or seals to properly replace the product
- Zinc coated terminal to resist corrosion
- Screw-In Type/Thread-in probe for installation in water jacket or radiator
- Adjustable thermostatic fan control
- For use with Rapid-Cool and super duty electric fans
- Thread-in probe for installation in water jacket or radiator

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Product Dimensions | 4.7"L x 2.4"W x 8.2"H |
| Brand | Hayden Automotive |
| Power Connector Type | 2-Pin |
| Voltage | 220 Volts |
| Wattage | 297 watts |
| Cooling Method | Air |
| Compatible Devices | Radiator |
| Noise Level | 50 dB |
| Material | Zinc |
| Maximum Rotational Speed | 2500 RPM |
| UPC | 036752036516 |
| Manufacturer | Hayden Automotive |
| Number of Items | 1 |
| Model | Control Kit |
| Item Weight | 8.8 ounces |
| Item model number | 3651 |
| Is Discontinued By Manufacturer | Yes |
| Exterior | Machined |
| Manufacturer Part Number | 3651 |

## Product Details

- **Product Dimensions:** 4.7"L x 2.4"W x 8.2"H
- **Brand:** Hayden Automotive
- **Power Connector Type:** 2-Pin
- **Voltage:** 220 Volts
- **Wattage:** 297 watts
- **Cooling Method:** Air
- **Compatible Devices:** Radiator
- **Noise Level:** 50 dB
- **Material:** Zinc
- **Maximum Rotational Speed:** 2500 RPM

## Images

![Hayden 3651 Universal Add-On Adjustable Thermostatic Fan Control Kit, Custom Fitting & Wiring Required - Image 1](https://m.media-amazon.com/images/I/619lSmp1uQL.jpg)

## Questions & Answers

**Q: How do u find out if this fits your vehicle? I have an Oldsmobile Bravada (GM)**
A: I made it work.  You are gonna need to know the size of hole and thread size of your water outlet/thermostat housing and then see if the switch/sensor matches those dimensions.  I have an 1983 K20 that I installed a dual fan assembly from a dodge charger into and wired up this control to my trucks thermostat housing's temperature switch.  Yours is probably different and will require some homework to wire it up--hint:  hotrod forums are great for research.

**Q: how long in warranty last.mine has stop working**
A: Idh

**Q: Does this have a hi and low modes or just on and off?**
A: Just one setting. I used it for about two months with a dual fan setup but kept having issues so I built a relay pack.

**Q: Whats the thread size of the probe?**
A: 1/8 pipe (1/8 NPT)

## Frequently Bought Together

- Hayden 3651 Universal Add-On Adjustable Thermostatic Fan Control Kit, Custom Fitting & Wiring Required
- Hayden 3690 Rapid-Cool™ Reversable Universal-Fit Add-On Fan Kit – Not OEM Replacement
- Fan Mounting Kit, Mellbree 2-Pack Electric Radiator Fan Mounting Kit Compatible for Electric Cooling Fan and Transmission Cooler

---

## 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.it/products/2812858-hayden-3651-universal-add-on-adjustable-thermostatic-fan-control-kit](https://www.desertcart.it/products/2812858-hayden-3651-universal-add-on-adjustable-thermostatic-fan-control-kit)

---

*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-03-19*