PPE 116454025 Coolant Overflow Tank | 2001-2007 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Features:

• Holds up to one gallon of coolant
• Made from durable 6061 aluminum
• Hand-cut and TIG welded construction
• Improves cooling system performance
• Replaces factory plastic overflow tank
• Installs in second battery location
• Mounts using factory bolt locations
• Compatible with battery remount tray
• Fits 2001-2007 GM 6.6L Duramax trucks

Serious Cooling Capacity for Serious Duramax Builds

If you’ve made performance upgrades to your Duramax, you already know that keeping your cooling system in check is just as important as adding horsepower. The PPE Coolant Overflow Tank is designed to give your 2001 to 2007 Silverado or Sierra HD the extra coolant capacity it needs to handle the heat. This tank holds up to one full gallon of coolant, providing extra reserve to help prevent overheating during heavy towing, high-performance driving, or long hauls. Made from premium 6061 aluminum, each tank is hand-cut and TIG welded for strength and durability. Unlike the brittle plastic factory tank, this aluminum upgrade not only performs better but also looks great under the hood.

Built to Fit, Built to Perform

Installation is simple and straightforward. The PPE overflow tank mounts in the location of your second battery and secures to factory bolt holes, so there’s no need to drill or modify your truck. It’s designed to work perfectly with PPE’s Battery Remount Tray, giving you options to relocate your battery while improving your cooling system’s capacity at the same time. Whether you’re daily driving, towing heavy loads, or building a competition-ready truck, this coolant overflow tank gives your Duramax the extra protection it needs to perform reliably under pressure. It’s a smart, clean upgrade that makes a real difference when the temperatures start climbing.

Fits: 2001, 2002, 2003, 2004, 2005, 2006, 2007 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax