Collection: Auto - Overflow Canister

Manage engine temperatures and prevent fluid loss with our selection of Auto Overflow Canister components. At DIY Customs, we provide high-durability coolant recovery tanks, specialized billet aluminum expansion canisters, durable universal overflow bottles, and heavy-duty radiator puke tanks designed for a perfect fit in any engine bay. Whether you are replacing a brittle factory plastic tank to prevent coolant leaks, outfitting a high-performance build with a sleek polished aluminum canister, or ensuring your track car meets safety requirements with a dedicated overflow system, our professional-grade hardware offers the pressure handling and thermal resistance you need at unbeatable prices. From specialized vented canisters to direct-fit recovery tanks for popular performance platforms, we carry the essential gear for every cooling system upgrade. Don't see the specific fluid capacity (1 pint / 1 quart), mounting style, or specialized material for your reservoir? Hit the live chat or call 412-882-8346—we can special order and drop-ship exactly what you are looking for directly to your doorstep!