Spectra CU13748 Radiator

Spectra CU13748 Radiator Overview

The Spectra CU13748 radiator is built for Subaru cooling system service with OE-style durability and fitment-focused dimensions. It is a cross flow radiator with an aluminum core and plastic tanks, made for direct replacement applications on select Subaru Crosstrek, Impreza, and XV models.

Compatible With 2018-2024 Subaru Crosstrek, 2017-2023 Subaru Impreza, and 2018-2022 Subaru XV, this radiator is sized to match the original cooling layout and hose connection points. The CU13748 part number is also a useful reference when comparing replacement radiators for these Subaru applications.

Key Features

• Aluminum core with plastic tank construction
• Cross flow design for Subaru cooling system layouts
• Core height: 26 in. (660 mm)
• Core width: 14.75 in. (374 mm)
• Core thickness: 0.625 in. (16 mm)
• Top right inlet and bottom left outlet locations
• 1.5625 in. (39.5 mm) inlet and outlet diameters
• Single-row core design
• No radiator cap included
• No fan included
• No transmission oil cooler included

Detailed Description

Spectra Premium radiators are engineered to meet the durability expectations associated with OE replacement cooling components. The CU13748 uses an aluminum core for efficient heat transfer and plastic tanks for a factory-style configuration, making it a practical choice for Subaru cooling system repair. For shoppers searching for a Subaru Crosstrek radiator, Subaru Impreza radiator, or Subaru XV radiator, this part number CU13748 aligns with the listed fitment and core dimensions.

This part cross-references Bosch 13748 and CSF 3889 for the same application.

What It Helps Address

• Engine overheating caused by a leaking or restricted radiator
• Coolant loss from cracked tanks or damaged core passages
• Reduced cooling performance in stop-and-go driving
• Temperature instability from an aging factory radiator
• Replacement needs after corrosion, impact damage, or seam failure

Installation Notes and Tips

Verify inlet and outlet locations, hose diameters, and core dimensions before installation. Confirm that the vehicle does not require a separate radiator cap, fan assembly, or transmission oil cooler on this application. Flush the cooling system, inspect hoses and clamps, and refill with the correct coolant mixture after installation. Always bleed air from the system according to Subaru service procedures.

Quality Assurance

Spectra Premium designs this radiator to follow OE-style durability expectations for replacement cooling service. The CU13748 is built for the listed Subaru applications and dimensional match-up required for proper fitment.