If you have a GM truck, chances are that you have a leaking heater core fitting... DmaxStore developed this billet aluminum replacement that is far superior to the factory plastic piece that is prone to leaking and even breaking. Product Overview: With DmaxStore's billet heater hose connector, you won't have to worry about your plastic connector cracking, becoming brittle, or leaking. It also features an improved x-ring style seal that has 2 contact points to prevent any leaks. -Made of 6061-T6 Aluminum for corrosion resistance -Machined dimples to hold the retainer clip during install -OE fit replacement -Double contact seal x-ring -More resistant to heat and vibration -Made in the USA Installation: This is a quick step by step installation guide that will help you install a new. heater core fitting on your GM truck. Subscribe and Follow: ✅ Subscribe to our channel for more Duramax tutorials and product reviews! ✅ Follow us on social media for updates and exclusive content. 🔗 Visit DuramaxServiceCenter.com for expert Duramax services. 🛒 Purchase the DmaxStore Billet Heater Core Fitting on DmaxStore.com. Useful Links: • DuramaxServiceCenter.com • https://dmaxstore.com/products/dmaxst... About DSC: We are dedicated to providing the best service and knowledge for Duramax truck owners. Our expertise ensures that your truck gets the top-notch care it deserves.