Direct replacement coolant expansion tank for 12–15 Civic and 13–22 ILX models. Hard panel construction designed to meet factory specifications. Drop-in fit at original mounting points.
Do I need to drain the cooling system before swapping this in?
Yes. Disconnect the overflow hose and drain any remaining coolant from the old tank before unbolting it. Once the new tank is mounted, reconnect the hose and refill with fresh coolant to the proper level.
Will this tank work with my current radiator and hoses?
This tank is designed for factory fitment, so your existing overflow hose will connect without modification. If your hose is cracked or hardened, replace it at the same time to prevent future leaks.
What if the tank arrives damaged?
Inspect the tank immediately upon arrival for cracks or manufacturing defects. If damage is found, contact ModSupply with photos and we'll process a replacement.
Products are direct shipped from Supplier.
* Rates from 0–36% APR. Payment options through Affirm are subject to an eligibility check and are provided by these lending partners: affirm.com/lenders. Options depend on your purchase amount, and a down payment may be required. CA residents: Loans by Affirm Loan Services, LLC are made or arranged pursuant to a California Finance Lenders Law license. For licenses and disclosures, see affirm.com/licenses. For example, a $800 purchase could be split into 12 monthly payments of $72.21 at 15% APR or 4 interest free payments of $200 every 2 weeks.
**Rates from 0%-36% APR. Payment options through Shop Pay Installments, are subject to an eligibility check and are provided by these lending partners: affirm.com/lenders. Options depend on your purchase amount, and a down payment may be required. State notices to consumers https://www.affirm.com/licenses.