One Stop Solutions 2572 Radiator

Radiator for 2003-2005 Honda Civic

Restore cooling performance with this OSC Premium New Automotive Radiator for the 2003-2005 Honda Civic. Part number 2572 is built to OE form and function with a downflow design, plastic tanks, and a premium aluminum core construction for direct replacement service.

Fits 2003-2005 Honda Civic, N/A. This radiator is engineered for the Civic cooling system layout and includes a concentric transmission oil cooler for automatic-transmission applications.

Key Features

• Part number 2572 for 2003-2005 Honda Civic applications
• Downflow radiator design with 1-row core construction
• Core dimensions: 25 7/8 in. wide, 13 3/4 in. high, 5/8 in. thick
• 1 1/8 in. inlet and 1 1/8 in. outlet connections
• Plastic tanks with premium-grade core materials
• Concentric transmission oil cooler included
• Individually pressure tested during production
• Factory-style fitment with fitted and torqued components

Detailed Description

OSC designed this radiator to match original equipment form and function while addressing common cooling-system wear points. The core uses premium-grade materials, and the unit is built with engineering updates such as increased fin density and a thicker core profile to improve heat rejection and service life. The transmission oil cooler is integrated into the radiator assembly, and the unit is assembled to factory specifications for a direct replacement on the Honda Civic.

Part number 2572 is a practical choice when replacing a leaking, clogged, or damaged radiator on a 2003-2005 Honda Civic. It cross-references Honda 19010PZAA51 and HO3010183 for the same application.

What This Radiator Helps Address

• Coolant leaks from a cracked or aging radiator tank
• Overheating caused by restricted coolant flow
• Transmission temperature concerns tied to a failing cooler circuit
• Reduced cooling efficiency from worn core fins or internal blockage
• Fitment issues from a damaged or incorrect replacement radiator

Installation Notes and Tips

Verify inlet and outlet hose sizes, cooler line routing, and mounting points before installation. Flush the cooling system and inspect hoses, clamps, and the radiator cap condition separately, since this radiator is supplied without a cap. Confirm automatic-transmission cooler line connections are clean and properly seated before filling and bleeding the system.

Quality Assurance

OSC states that each radiator is tested multiple times during production, including cooler testing before tank installation, core testing before assembly, and a final assembled-unit test. The design also uses cadmium-plated tubes and a die-cut gasket to help reduce premature failure and leakage.