Aluminum Expansion Tank, fits Dodge Charger/Challenger 6.4L/6.2L Hellcat 2015+ By Mishimoto

If you’ve ever popped your hood and thought, “Wow… this plastic coolant tank is the only thing in here not ready for battle,” we’ve got just the fix. The Mishimoto aluminum coolant expansion tank is the grown-up, beefed-up version your Hellcat or 6.4L Charger/Challenger deserves.

We’re talking 100% aluminum construction, TIG-welded for strength, because your coolant tank shouldn’t cry in the corner after a few heat cycles. This thing laughs at temperature swings, and thanks to the cold fill tab built right into the internal baffling, it keeps its sleek look without sprouting any weird extra parts.

The internal baffles aren’t just for show — they keep your coolant right where it needs to be near the overflow port, even when you’re cornering like a maniac or launching so hard your groceries end up in the back seat. This means no sneaky air bubbles getting into your cooling system and no overheating tantrums from your engine.

Finish options? You bet. Go with the micro-wrinkle black powder coat for that stealthy “I eat plastic tanks for breakfast” vibe, or snag the natural finish if you want to go wild with powder coating, anodizing, or hydro dipping. Bonus: fits perfectly with your stock expansion tank cap, so you don’t have to go hunting for some obscure replacement part.

Like all Mishimoto gear, this bad boy comes with a lifetime warranty — because if it ever fails, Mishimoto will make it right.

Bottom line: your Hellcat works hard. Don’t let it sip coolant from a flimsy plastic sippy cup. Give it the high-performance aluminum chalice it deserves.