Coolant Tanks

Precision-Engineered Coolant Tanks: Keep Your Cool Under Pressure

Eliminate the Weak Link. Upgrade to Aluminum.

Factory plastic coolant tanks are a ticking time bomb, especially under the high-heat and pressure of a boosted engine. At JackFabs, we replace "standard" with "superior." Our aluminum expansion tanks and overflow reservoirs are engineered to handle the extreme cooling demands of high-performance builds without cracking, leaking, or failing.

Each tank is laser-cut from 5052 aluminum and hand-TIG welded in our Minnesota shop to ensure a perfect, direct bolt-in fit. Whether you are cleaning up your engine bay or prepping for the track, our reservoirs offer the durability and professional finish your build deserves.

  • Pressure Tested: Built to survive high-boost cooling system pressures.

  • Direct Bolt-In: Replaces brittle OEM plastic tanks using factory mounting points.

  • Performance Aesthetics: Clean, handcrafted welds that look as good as they perform.

  • Universal & Chassis-Specific: Available for BMW, GM, and custom applications.