Moroso 99-07 GM Pickup 2500/01-07 3500 (Gas) Coolant Expansion Tank - Direct Bolt-In Replacement

If you're working on the cooling system of your 1999-2007 GM Pickup 2500 or 2001-2007 3500 with a gas engine, replacing a cracked or leaking coolant expansion tank is a common task. This direct bolt-in replacement from Moroso is designed to get your truck back to proper operating condition. It handles the crucial job of holding excess coolant and allowing it to expand and contract with temperature changes, maintaining the correct pressure within your cooling system.

Moroso builds this expansion tank from a durable, clear-view plastic that lets you easily monitor your coolant level at a glance. This is a big help during maintenance or if you suspect a leak. The tank is designed as a direct bolt-in replacement, meaning it uses the factory mounting points and hose connections, simplifying the installation process. This avoids the need for any cutting, welding, or custom fabrication, making it a straightforward swap for most DIY mechanics or professional shops. The kit includes the tank itself, ready to be installed.

When replacing your coolant expansion tank, it's a good time to inspect your radiator hoses and thermostat for any signs of wear or potential failure. Having a clear view of your coolant level is essential for preventing overheating, so this tank offers a practical advantage for keeping your engine running cool and reliably.