--- product_id: 36669834 title: "iFJF 12639277 Water in Fuel Indicator Sensor for Duramax 6.6L Chevrolet Silverado and GMC Sierra Engine 2001-2011 Truck Aftermarket 8 Side Design" brand: "ifjf" price: "€ 0.50" currency: EUR in_stock: false reviews_count: 8 url: https://www.desertcart.hr/products/36669834-ifjf-12639277-water-in-fuel-indicator-sensor-for-duramax-6 store_origin: HR region: Croatia --- # Water detection 8-sided design OEM replacement iFJF 12639277 Water in Fuel Indicator Sensor for Duramax 6.6L Chevrolet Silverado and GMC Sierra Engine 2001-2011 Truck Aftermarket 8 Side Design **Brand:** ifjf **Price:** € 0.50 **Availability:** ❌ Out of Stock ## Summary > 🚚 Keep Your Engine Running Smoothly! ## Quick Answers - **What is this?** iFJF 12639277 Water in Fuel Indicator Sensor for Duramax 6.6L Chevrolet Silverado and GMC Sierra Engine 2001-2011 Truck Aftermarket 8 Side Design by ifjf - **How much does it cost?** € 0.50 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/36669834-ifjf-12639277-water-in-fuel-indicator-sensor-for-duramax-6) ## Best For - ifjf enthusiasts ## Why This Product - Trusted ifjf brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Enhanced Safety:** Alerts ECU and dashboard for water detection in fuel supply - • **Innovative Design:** Unique 8-sided design for improved functionality - • **OEM Compatibility:** Replaces multiple OEM part numbers for seamless integration - • **Precision Fitment:** Engineered for Duramax 6.6L Chevrolet Silverado and GMC Sierra (2001-2011) - • **User-Friendly Installation:** Includes o-ring for hassle-free setup ## Overview The iFJF 12639277 Water in Fuel Indicator Sensor is a high-quality aftermarket replacement designed specifically for Duramax 6.6L Chevrolet Silverado and GMC Sierra trucks from 2001 to 2011. This sensor alerts the Engine Control Unit (ECU) and dashboard when water is detected in the fuel supply, ensuring optimal engine performance and safety. With its unique 8-sided design and included o-ring, installation is straightforward and efficient. ## Description Water in Fuel Indicator Sensor for Duramax 6.6L Chevrolet Silverado and GMC Sierra Engine 2001-2011 Truck.Function:Let the Engine Control Unit(ECU) and/or dashboard lamp indicator know when water detection has occurred in the vehicle's fuel supply.screws into the bottom of the fuel filter housing and has a valve in the bottom that can be used to drain waterReplaces OEM part number:12639277,12639450, 97384931 ## Features - Fitment:Water in Fuel Indicator Sensor for Duramax 6.6L Chevrolet Silverado and GMC Sierra Engine 2001-2011 Truck. - Replaces OEM part number:12639277,12639450, 97384931. - Function:Let the Engine Control Unit(ECU) and/or dashboard lamp indicator know when water detection has occurred in the vehicle's fuel supply. - Package includes:1 Water in Fuel Indicator Sensor with o-ring. - Attention:Our sensor is 8 sided desigh,which is not same as OEM’s 12 sided.So please choose right tools to install this sensor. ## Technical Specifications | Specification | Value | |---------------|-------| | Manufacturer | iFJF Direct | | Brand | iFJF | | Item Weight | 1.58 ounces | | Package Dimensions | 3.3 x 3.2 x 2.3 inches | | Is Discontinued By Manufacturer | No | | Manufacturer Part Number | LE-FSS01-WH | | OEM Part Number | 12639277 | ## Images ![iFJF 12639277 Water in Fuel Indicator Sensor for Duramax 6.6L Chevrolet Silverado and GMC Sierra Engine 2001-2011 Truck Aftermarket 8 Side Design - Image 1](https://m.media-amazon.com/images/I/51XbnMTMPlL.jpg) ![iFJF 12639277 Water in Fuel Indicator Sensor for Duramax 6.6L Chevrolet Silverado and GMC Sierra Engine 2001-2011 Truck Aftermarket 8 Side Design - Image 2](https://m.media-amazon.com/images/I/61FGoyehh1L.jpg) ![iFJF 12639277 Water in Fuel Indicator Sensor for Duramax 6.6L Chevrolet Silverado and GMC Sierra Engine 2001-2011 Truck Aftermarket 8 Side Design - Image 3](https://m.media-amazon.com/images/I/51FMMrGYe7L.jpg) ![iFJF 12639277 Water in Fuel Indicator Sensor for Duramax 6.6L Chevrolet Silverado and GMC Sierra Engine 2001-2011 Truck Aftermarket 8 Side Design - Image 4](https://m.media-amazon.com/images/I/51MHetfpx6L.jpg) ![iFJF 12639277 Water in Fuel Indicator Sensor for Duramax 6.6L Chevrolet Silverado and GMC Sierra Engine 2001-2011 Truck Aftermarket 8 Side Design - Image 5](https://m.media-amazon.com/images/I/51gw92wJXiL.jpg) ## Questions & Answers **Q: Will this product comes with a wrench?8-sided wrench is a little difficult to find.** A: Does not come with a wrench but 8 sided not necessary. Unplug the wire, remove the filter, you can remove the sending unit with a pair of channel locks. **Q: Will it fit my 06 gmc sierra 3500hd?** A: It should. Fitment:Water in Fuel Indicator Sensor for Duramax 6.6L Chevrolet Silverado and GMC Sierra Engine 2001-2011 Truck. Replaces OEM part number:12639277,12639450, **Q: Will this fit 2013 sierra? some websites indicate their part works for 2001-2013. this page says 2001-2012. which is correct??** A: I cannot speak to this issue . My vehicle is a 2005 and I have no info on the 2013. Sorry. **Q: I am staying in south africa and am.driving a isuzu d teq 2008 model, also called the d max. will this fit on my pick up? it looks the same.** A: Fitment:Water in Fuel Indicator Sensor for Duramax 6.6L Chevrolet Silverado and GMC Sierra Engine 2001-2011 Truck. Replaces OEM part number:12639277,12639450, ## Customer Reviews ### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars Replacement part *by K***N on Reviewed in the United States on July 23, 2023* Easy to install ### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars Works great!!! *by B***G on Reviewed in the United States on March 12, 2019* The 8 sided nut is easy to remove, no special tool required. The sensor wires are in a conduit and appear sturdy. Engine no longer loses prime after installing new filter and water sensor. All good!!! ### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars Worked *by S***8 on Reviewed in the United States on April 22, 2023* Got water in fuel code to go off. Fixed. Problem. --- ## 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.hr/products/36669834-ifjf-12639277-water-in-fuel-indicator-sensor-for-duramax-6](https://www.desertcart.hr/products/36669834-ifjf-12639277-water-in-fuel-indicator-sensor-for-duramax-6) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-04-25*