One Stop Solutions 2273 Radiator

OE-Style Cooling Replacement for Civic

This OSC Premium radiator is built for 1999-2000 Honda Civic applications with a 16mm core and factory-style downflow design. Part number 2273 is engineered for direct replacement service, with a plastic tank and aluminum core construction that follows original equipment form and function.

Designed for Honda Civic cooling system service, part number 2273 also includes a concentric transmission oil cooler and a 0.9 cap. The result is a radiator assembly focused on proper fit, stable coolant flow, and OE-style thermal performance.

Key Features

• Fits 1999-2000 Honda Civic, N/A
• OSC Premium radiator, part number 2273
• Downflow radiator design with 1-row core construction
• Plastic tank construction with premium aluminum core materials
• Transmission oil cooler included with concentric cooler design
• Cap included, 0.9 rating
• Die-cut gasket design for leak resistance
• Individually pressure tested during production

Detailed Description

OSC part number 2273 is a replacement radiator for 1999-2000 Honda Civic models listed with the 16mm core note and EXC. EX Models fitment. It measures 13 3/4 inches in core height, 13 11/16 inches in core width, and 5/8 inch core thickness, with 1 1/8 inch inlet and outlet diameters. The unit uses a downflow layout and includes a concentric transmission oil cooler to match the original cooling system configuration where equipped.

One Stop Solutions builds this radiator with premium-grade components and factory-style assembly practices. The radiator is pressure tested during production, and the cooler circuits are checked before and after assembly to help confirm sealing and performance. This makes part number 2273 a practical choice for Honda Civic radiator replacement work where OE-style fit and cooling system integrity matter.

This part cross-references APDI 8011290 and Spectra Premium CU1290 for the same application.

Common Cooling Issues It Can Address

• Coolant leaks from an aging radiator tank or gasket area
• Restricted cooling performance from a worn or damaged core
• Transmission heat management concerns in radiator-equipped cooler systems
• Fitment problems caused by non-OE-style replacement parts
• Cooling system service needs on higher-mileage Honda Civic vehicles

Installation Notes and Tips

Verify the vehicle is a 1999-2000 Honda Civic with the listed 16mm core application before installation. Compare inlet and outlet sizes, cooler layout, and overall dimensions to the original radiator to confirm match-up. Inspect hoses, clamps, and mounting points during replacement so the new radiator can seat correctly and seal properly.

Quality Assurance

OSC radiators are engineered to OE-style form and function and are individually pressure tested during production. The transmission and engine oil cooler circuits are checked as part of the manufacturing process, and the completed radiator is tested again after assembly for added quality control.