--- product_id: 42896537 title: "Derale 25011 Fluid Control Thermostat Kit, Silver" brand: "derale" price: "£82.82" currency: GBP in_stock: true reviews_count: 5 category: "Derale" url: https://www.desertcart.co.uk/products/42896537-derale-25011-fluid-control-thermostat-kit-silver store_origin: GB region: United Kingdom --- # 180° rotatable flow direction Optimized for cold climates Bypasses cooler until 180°F Derale 25011 Fluid Control Thermostat Kit, Silver **Brand:** derale **Price:** £82.82 **Availability:** ✅ In Stock ## Summary > 🌡️ Stay ahead of the cold—engine warmth that won’t quit! ## Quick Answers - **What is this?** Derale 25011 Fluid Control Thermostat Kit, Silver by derale - **How much does it cost?** £82.82 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/42896537-derale-25011-fluid-control-thermostat-kit-silver) ## 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 - • **Cold Weather Ready:** Specially engineered to perform flawlessly in freezing conditions, reducing engine wear. - • **Durable Metal Build:** Sleek silver finish with robust metal construction designed for longevity and style. - • **Flexible Installation:** 180-degree rotatable valve adapts to your system’s flow direction with ease. - • **Precision Thermal Control:** Ensures oil bypass until optimal 180°F for faster warm-up and engine protection. - • **Consistent Pressure System:** Maintains steady oil pressure for reliable engine performance under all conditions. ## Overview The Derale 25011 Fluid Control Thermostat Kit is a high-performance thermostatic valve designed to optimize engine oil flow by bypassing the cooler until oil reaches 180°F. Perfect for cold weather climates, it ensures quicker warm-up times and maintains consistent oil pressure. Its 180-degree rotatable design allows flexible installation, all housed in a durable silver metal casing. ## Description Derale 25011 Fluid Control Thermostat Kit, Silver Review: Nice part, use it the right way - Nice little Made in USA thermostatic valve. Easy instructions. I had installed it yesterday after adding an auxilary transmission cooler to my 2006 subaru forester xt. Dont be an idiot, use 3/8 NPT adapters with thread tape. Brass fittings into an aluminum part, not using thread tape or NPT fittings is just asking for a leak, I installed this the right way and it works fine. Aluminum expands faster than copper from heat so you need to use thread tape, nothing wrong with it. Review: Uses 1/4 20 screws 3/8” long to mount - Transmission cooler for vanagon automatic ## Features - It allows the oil to bypass the cooler until it reaches 180 degree farenheit at which point the internal thermostatic valve will close and force 100% of the oil through the cooler while maintaining a constant pressure system. - Bypasses cooler at 180°F - Provides quicker warm-up temperatures - Perfect for cold weather climates - Can be rotated 180 degree to switch flow direction ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B004XUDPAK | | Additional Features | Cold Weather Optimization | | Backlight | No | | Best Sellers Rank | #1,503,996 in Automotive ( See Top 100 in Automotive ) #4 in Automotive Performance Engine Cooler Accessories | | Brand | Derale | | Brand Name | Derale | | Color | Silver | | Connectivity Protocol | NPT | | Connectivity Technology | Wired | | Control Method | Touch | | Control Type | Button Control | | Controller Type | Amazon Alexa | | Customer Reviews | 4.4 out of 5 stars 19 Reviews | | Display Type | lcd or led | | Finish Types | Glossy | | Global Trade Identification Number | 00083277250118 | | Included Components | Mounting bracket, 4 different mounting positions | | Item Type Name | Fluid Control Thermostat (3/8" NPT) | | Item Weight | 0.9 Pounds | | Manufacturer | Derale | | Manufacturer Part Number | 25011 | | Manufacturer Warranty Description | Limited one year. | | Material Type | Metal | | Model Name | Fluid Control Thermostat (3/8" NPT) | | Model Number | 25011 | | Mounting Type | Wall Mount | | Part Interchange Info | 25011 | | Power Source | Hardwire | | Product Style | Modern | | Shape | Rectangular | | Special Feature | Cold Weather Optimization | | Specific Uses For Product | Heating System | | Temperature Control Type | Thermostatic | | UPC | 083277250118 | | Unit Count | 1.0 Count | | Voltage | 230 Volts | ## Product Details - **Brand:** Derale - **Model Name:** Fluid Control Thermostat (3/8" NPT) - **Controller Type:** Amazon Alexa - **Special Feature:** Cold Weather Optimization - **Color:** Silver ## Images ![Derale 25011 Fluid Control Thermostat Kit, Silver - Image 1](https://m.media-amazon.com/images/I/61Z4Uc3Vg4L.jpg) ![Derale 25011 Fluid Control Thermostat Kit, Silver - Image 2](https://m.media-amazon.com/images/I/61oHkH4rwpL.jpg) ![Derale 25011 Fluid Control Thermostat Kit, Silver - Image 3](https://m.media-amazon.com/images/I/31mmTcvyfJL.jpg) ![Derale 25011 Fluid Control Thermostat Kit, Silver - Image 4](https://m.media-amazon.com/images/I/31Zlwn2zDGL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Nice part, use it the right way *by B***Z on September 17, 2022* Nice little Made in USA thermostatic valve. Easy instructions. I had installed it yesterday after adding an auxilary transmission cooler to my 2006 subaru forester xt. Dont be an idiot, use 3/8 NPT adapters with thread tape. Brass fittings into an aluminum part, not using thread tape or NPT fittings is just asking for a leak, I installed this the right way and it works fine. Aluminum expands faster than copper from heat so you need to use thread tape, nothing wrong with it. ### ⭐⭐⭐⭐⭐ Uses 1/4 20 screws 3/8” long to mount *by K***D on February 20, 2019* Transmission cooler for vanagon automatic ### ⭐ Does not work would I would get a different unit *by S***D on September 8, 2025* I would not buy this folks! It says it lets 10% volume in until it gets to 180°, it lets too much volume in, --- ## 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.co.uk/products/42896537-derale-25011-fluid-control-thermostat-kit-silver](https://www.desertcart.co.uk/products/42896537-derale-25011-fluid-control-thermostat-kit-silver) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-19*