Car guys and DIY mechanics, this Gates coolant hose is exactly what you need for those tight engine compartment repairs! This specific 18552 model has a 0.31-inch inside diameter with an 11.7-inch centerline length, making it perfect for compact engine spaces. It's made from EPDM material that's engineered to resist electrochemical degradation - basically, it won't break down from coolant chemicals over time. The black hose meets SAE 20R3 Type EC Class D-1 and D-2 specifications, so you know it's quality stuff. It handles temperatures from -40°F all the way up to +275°F in coolant applications, which covers pretty much any weather condition you'll encounter. This hose fits 2009-2013 Toyota Corolla with the 4-cylinder 1.8L engine, specifically for the throttle body to pipe connection. But it's versatile too - you can use it for coolant, water, air, and even marine applications. Gates is known for quality automotive parts, and this molded hose has all the features of their premium coolant hoses. Just remember - it's not for fuel or oil applications, strictly coolant and similar fluids. If you're dealing with a leaking or worn coolant hose, this replacement will get your Corolla (or compatible vehicle) running cool and reliable again without breaking the bank!