Automotive Cooling System Hoses, Connectors, Adapters, and Fittings

Using high quality AN or heavy-duty radiator hose fittings and hoses will provide you with years of trouble-free service, free of leaks or loose connections. Aluminum and brass radiator hose size adapter fittings are more resistant to corrosion when compared to traditional steel and cast iron fittings. AN fittings are used in military, aviation, and performance applications due to their robust design that seals well and lasts a long time, making them great candidates as well.

For show vehicles and engine compartments that require attention to detail, using polished, anodized, or chrome custom radiator hose fittings are necessary. These fittings will make your vehicle stand out from the rest at the next car meet.

When checking cooling system hoses, the engine needs to be cold to prevent burn injuries. A visual inspection as well as compressing by hand is needed to determine if the hoses are cracked, deteriorated, or hardened. If any of these conditions are found, the hose needs replaced. If there are any leaks found and the hose clamps or fittings are tight, the hose will also need to be replaced. Hoses can be checked when the engine is warm, though without touching to avoid burns. Any signs of hoses bulging or weakened areas when an engine is at operating temperature require replacement.

An engine cooling hose can range from under $15 to over $100 each, depending on the year, make, and model of the vehicle as well as the engine. A radiator hose adapter or connector can range in price from under $10 to over $50, depending on the size and material the hose adapter is made from (for example, rubber or metal).

Most air conditioning hoses require the use of a crimper tool, designed specifically for high-pressure AC hose connectors and lines. These tools squeeze and form the ac hose connector fittings onto the end of the hose, providing a leak-free connection for the high pressures associated with air conditioning refrigerant.

With any cooling or air conditioning plumbing project, replacement hoses and cooling or AC hose adapters are needed. Investing in high quality AN fittings or heavy-duty connectors will help provide years of leak-free service along with tight connections.