One Stop Solutions 2704 Radiator

Brand One Stop Solutions 2704
Cap Included NO
Core Height 13 3/8
Core Material PA
Core Row Quantity 1
Core Thickness 1
Core Thickness 26
Core Width 27 3/16
Down Flow Or Cross Flow Type DOWNFLOW
Engine Oil Cooler Included NO
Engine Oil Cooler Type NONE
Inlet Diameter 1 9/16
Inlet Header Length 28 3/16
Inlet Header Width 1 15/16
Outlet Diameter 1 9/16
Outlet Header Length 28 3/16
Outlet Header Width 2 3/8
Tank Material PLASTIC
Transmission Oil Cooler Included NO
Transmission Oil Cooler Type NONE
Fits Subaru · 4 vehicles

O.E. form and function. Built for a drop-in fit with hassle-free installation.

Premium aluminum construction. Cadmium-plated tubes help resist premature failure.

Individually pressure tested. Each radiator is checked during production for leaks.

Cross-references APDI 8012703, Koyorad A2704 and Spectra Premium CU2703 for the same application. See all 4.

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Radiator for 2004-2007 Subaru Impreza

Restore cooling performance with this OSC Premium New Automotive Radiator, part number 2704. It is built for the 2004-2007 Subaru Impreza with an OE-style downflow layout, plastic tanks, and a premium aluminum core for direct replacement service.

Key Features

  • Fits 2004-2007 Subaru Impreza
  • Downflow radiator design with plastic tanks
  • Premium aluminum core construction
  • Single-row core design
  • Core dimensions: 13 3/8 in. height, 27 3/16 in. width, 1 in. thickness
  • Inlet and outlet diameters: 1 9/16 in.
  • No engine oil cooler, transmission oil cooler, or cap included
  • Part number 2704 for direct catalog lookup

Detailed Description

OSC engineers this radiator to match original equipment form and function while improving durability through premium-grade materials and manufacturing controls. The core uses aluminum construction with cadmium-plated tubes inside and out to help resist premature failure, while the die-cut gasket supports a leak-resistant seal. Each unit is pressure tested during production and built for multi-fit applications without changing the intended look or fit. For Subaru Impreza radiator replacement needs, part number 2704 provides an OE-style solution with the dimensions and connection sizes needed for a proper installation.

This part cross-references APDI 8012703 and Koyorad A2704 for the same application.

Common Problems This Radiator Can Address

  • Overheating caused by a leaking or restricted radiator
  • Coolant loss from cracked tanks or weakened seals
  • Reduced heat transfer from an aging core
  • Temperature instability during daily driving
  • Cooling system service on a high-mileage Subaru Impreza

Installation Notes and Tips

Verify inlet and outlet sizes, header dimensions, and downflow layout before installation. Transfer any required fittings or hardware from the original setup if needed, and inspect hoses, clamps, and coolant condition at the same time. Flush the cooling system before installing the new radiator to reduce contamination and help protect the replacement unit. This radiator is a direct-fit replacement for 2004-2007 Subaru Impreza applications, so alignment with the factory mounting points should be checked during installation.

Quality Assurance

OSC tests the radiator core before assembly and retests the completed unit after assembly. The transmission and engine oil cooler circuits are also tested before installation into the tank when equipped. Part number 2704 is built to OE-style standards for fit, function, and durability.

This part fits 4 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelTransmissionLitersCylindersPositionNotes
2007SubaruImprezaManual2.5LH4N/A—
2006SubaruImprezaManual2.5LH4N/A—
2005SubaruImprezaManual2.0LH4N/A—
2004SubaruImprezaManual2.0LH4N/A—
Directly replaces or cross-references 4 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
APDI — 8012703Koyorad — A2704Spectra Premium — CU270345111FE101