---
product_id: 261766039
title: "Derale 13021-6AN x -6AN In-Line Fluid Thermostat"
brand: "derale"
price: "$122.45"
currency: USD
in_stock: true
url: https://www.desertcart.us/products/261766039-derale-13021-6an-x-6an-in-line-fluid-thermostat
store_origin: US
region: United States of America
---

# 6AN inlet size for seamless fit 180°F preset turn-on temp Brass 3/8 inch barb fittings included Derale 13021-6AN x -6AN In-Line Fluid Thermostat

**Brand:** derale
**Price:** $122.45
**Availability:** ✅ In Stock

## Summary

> 🌡️ Stay cool, stay ahead — smart fan control that knows when to kick in!

## Quick Answers

- **What is this?** Derale 13021-6AN x -6AN In-Line Fluid Thermostat by derale
- **How much does it cost?** $122.45 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/261766039-derale-13021-6an-x-6an-in-line-fluid-thermostat)

## Best For

- derale enthusiasts

## Why This Product

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

## Key Features

- • **Compact & Lightweight:** Sleek 10.8 x 6.99 x 3.51 cm design weighing just 45g fits effortlessly in tight engine bays.
- • **Durable Brass Fittings:** Includes robust 3/8 inch barb fittings for leak-proof, long-lasting connections.
- • **High Capacity Performance:** Supports up to 15 amps, handling demanding cooling systems with ease.
- • **Plug-and-Play Installation:** Standard -6AN inlets make integration with existing setups quick and hassle-free.
- • **Precision Temperature Control:** Activates fan exactly at 180°F, ensuring optimal cooling only when needed.

## Overview

The Derale 13021-6AN In-Line Fluid Thermostat is a precision-engineered cooling control device preset to activate at 180°F and deactivate at 165°F. Featuring durable brass 3/8 inch barb fittings and standard -6AN inlets, it supports up to 15 amps and fits compactly within engine compartments, ensuring efficient, on-demand fan operation for enhanced thermal management.

## Description

With a 180 degree farenheit preset turn-on, 165 degree farenheit turn-off, this -6AN x -6AN fluid control thermostat engages the fan on any remote cooler electric fan so that it comes on only when needed. Brass hose barb fittings included in kit. Maximum 15 amp capacity.

## Features

- 180 degree farenheit preset turn-on temperature
- Turn-off temperature is preset at 165 degree farenheit
- -6AN Inlets
- Brass hose 3/8 inch barb fittings included

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Derale |
| Brand | Derale |
| Model | In-Line Fan Control -6AN |
| Product Dimensions | 10.8 x 6.99 x 3.51 cm; 45.36 g |
| Item model number | 13021 |
| Exterior | Brushed |
| Manufacturer Part Number | 13021 |
| OEM Part Number | 13021 |
| Mirror Adjustment | Button Control |
| Special Features | Fan Control Based on Fluid Temperature |
| Voltage | 230 Volts |
| Wattage | 3.45E+3 |
| Item Weight | 45.4 g |

## Images

![Derale 13021-6AN x -6AN In-Line Fluid Thermostat - Image 1](https://m.media-amazon.com/images/I/51o64JZLSfL.jpg)
![Derale 13021-6AN x -6AN In-Line Fluid Thermostat - Image 2](https://m.media-amazon.com/images/I/61KFYO8GbxL.jpg)
![Derale 13021-6AN x -6AN In-Line Fluid Thermostat - Image 3](https://m.media-amazon.com/images/I/61N3LKepx0L.jpg)

## Questions & Answers

**Q: Can this be used with 11/32" hose?**
A: I'm sure it could be used, you would have to get the correct adapter fittings though. On another note I would not recommend purchasing. I never installed because the sensor screws into the fitting and is the absolute smallest fitting I have ever seen. I was concerned a bug may hit it and cause it to break off. It appears very delicate and easily broken.

**Q: How do you get the sensor to not leak? I have tried thread sealant and thread locker.**
A: I use TEFLON tape, 3 passes. No leaks

**Q: is this brass or something else? Do I get what is pictured? Derailed 13021? With 6an bard fittings?**
A: The one I got was not brass.  Aluminum or other alloy.

**Q: Thread size?**
A: That is the thread...-6 (roughly 3/8)

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**Shop now:** [https://www.desertcart.us/products/261766039-derale-13021-6an-x-6an-in-line-fluid-thermostat](https://www.desertcart.us/products/261766039-derale-13021-6an-x-6an-in-line-fluid-thermostat)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-01-23*