One Stop Solutions 2779 Radiator

Radiator for Subaru Legacy and Outback

Replace a worn cooling system component with this OSC Premium radiator from One Stop Solutions. Part number 2779 is built for select Subaru Legacy and Subaru Outback applications with OE-style form and function, using premium aluminum construction, a plastic tank design, and an integrated plated transmission oil cooler.

Key Features

• Fits 2008-2009 Subaru Legacy and 2005-2009 Subaru Outback
• Downflow radiator design with one-row core construction
• Core dimensions: 27 1/16 in. wide, 13 3/4 in. high, 5/8 in. thick
• Plastic tank construction with PA core material
• Transmission oil cooler included; engine oil cooler not included
• Plated transmission cooler with 14 3/4 in. fitting spacing
• Inlet diameter: 1 1/8 in.; outlet diameter: 1 9/16 in.
• Part number 2779 is engineered for direct replacement use

Detailed Description

This radiator is designed for Subaru Legacy and Subaru Outback cooling system service where OE-style fit, cooling capacity, and transmission fluid temperature control matter. OSC builds the unit with premium-grade materials, pressure testing during production, and factory-style component placement to support consistent cooling performance. The radiator includes a plated transmission oil cooler and uses a downflow layout to match the original application.

Part number 2779 cross-references APDI 8012779 and Spectra Premium CU2779 for the same application. It is also listed against Subaru OE reference 45111AG04A and Koyorad A2779.

Common Problems This Radiator Can Address

• Coolant leaks from a cracked or aging radiator tank
• Overheating caused by restricted or weakened radiator flow
• Transmission fluid temperature concerns related to a failing cooler circuit
• Cooling performance loss from damaged fins, tubes, or headers
• Fitment issues after replacing a damaged original radiator

Installation Notes and Tips

Verify inlet and outlet hose sizes, cooler line spacing, and overall core dimensions before installation. This radiator is a direct-fit style replacement for the listed Subaru Legacy and Subaru Outback applications, and part number 2779 should be matched to the vehicle year and cooling configuration before removal of the original unit. Transfer any required vehicle-specific components from the existing setup as needed.

Quality Assurance

OSC states that each radiator is individually pressure tested during production, with cooler circuits checked before assembly and again after final assembly. The design uses OE-style engineering details, including fitted components and upgraded cooling features intended to improve durability in higher-mileage vehicles.