---tab Description--- Coolant Reservoir for 2008-2010 Ford 6.4L Powerstroke Coolant Overflow Tank SPELAB The factory plastic reservoir on your Ford 6.4L Powerstroke often turns brittle, cloudy, and leak-prone over time. SPELAB’s upgrade is a direct-fit replacement, made from TIG-welded 6061 aluminum for maximum strength and durability. Why Upgrade to SPELAB? SPELAB’s 6061 aircraft-grade aluminum coolant reservoir is TIG-welded and pressure-tested to deliver unmatched durability and leak resistance. Unlike stock plastic tanks made from two sealed halves, our one-piece aluminum design eliminates common failure points like cracking and seam separation. Key Features: Premium 6061 Aluminum – Stronger and more heat-resistant than OEM plasticTIG-Welded Construction – Ensures long-term reliability under pressureSight Glass Window – Easily monitor coolant levels at a glanceInternal baffles— help prevent cooling system starvation and air pocketsImproved Heat Dissipation – Helps manage engine temperature more efficiently Specifications： Brand SPELAB SKU SPCS08594BK Weight 4.25kg Type Coolant Expansion Tank fitment 2008-2010 Ford F250 F350 F450 F550 Superduty 6.4L Powerstroke Diesel What About the Missing Second Port? You may notice that some years of OEM coolant reservoirs have two coolant line ports, such as the Ford 6.4L Powerstroke overflow jug. The SPELAB coolant reservoir has only one. Here's why:The second port connects to the return line from the EGR cooler.If the EGR system is deleted, this line is no longer needed - there is a risk of leakage from the second port.That's why the SPELAB reservoir has a simplified, single-port design optimized for trucks equipped with an EGR delete system.If you keep the OEM EGR system, that hose must be connected back to the cooling jug; we recommend that you make a combined connection with a Y-hose. Do I Need to Pair It with an EGR Delete Kit? Here’s a quick guide: Your Truck Setup Recommended Solution Running OEM EGR Use a Y-split adapter or custom hose fitting Already deleted EGR ✔ Direct bolt-on with SPELAB coolant reservoir Planning to delete EGR ✔ Best to bundle with SPELAB EGR Delete Kit Pro Tip: The best setup is to run the SPELAB coolant reservoir + SPELAB EGR Delete Kit — simplified plumbing, fewer failure points, and improved reliability. Optional Billet Aluminum Coolant Cap Before using the pressure relief cap, apply lubricating oil and then tighten it all the way to the bottom. For those seeking an upgrade beyond the factory cap, the SPELAB Billet Aluminum Coolant Cap is designed to enhance your cooling system’s reliability, sealing performance, and durability. This precision-machined cap ensures optimal pressure retention, preventing leaks and coolant loss under extreme conditions. the billet aluminum coolant cap provides: Superior Sealing & Leak Prevention – Helps prevent coolant overflow and pressure loss. High-Pressure Resistance – Designed to withstand extreme operating conditions. Increased...