Koyorad A13113 Radiator

Koyorad A13113 Radiator Overview

The Koyorad A13113 radiator is an OE-equivalent replacement built for dependable cooling performance in select Cadillac applications. It uses an aluminum core with plastic tanks and a single-row design to match the factory-style layout for straightforward service replacement.

Compatible With 2004-2010 Cadillac SRX and Cadillac STS applications, this radiator is built around the core dimensions and hose connections needed for a direct-fit cooling system repair. The Koyorad A13113 also includes tow packaging and an integrated transmission oil cooler diameter specification for the listed vehicles.

Key Features

• Aluminum core construction with plastic tanks
• Single-row core design
• Core height: 23.625 in.
• Core width: 21.3125 in.
• Core thickness: 1.0625 in.
• Inlet diameter: 1.375 in.
• Outlet diameter: 1.375 in.
• Transmission oil cooler diameter: 1.0625 in.
• Tow packaging: With Tow
• Part number: A13113

Detailed Description

Koyorad A13113 is a radiator replacement for 2004-2009 Cadillac SRX and 2005-2006, 2008-2010 Cadillac STS models. Koyorad builds OE-style radiators using the technical experience needed to produce a replacement that matches factory requirements for cooling system service. The aluminum core helps transfer heat efficiently, while the plastic tank design follows the original equipment format used on these Cadillac platforms. If you are replacing a leaking, clogged, or damaged radiator on a Cadillac SRX or Cadillac STS, this part number A13113 provides a direct-fit solution for the listed applications.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What This Radiator Helps Address

• Coolant leaks from a cracked or aging radiator
• Overheating caused by restricted coolant flow
• Corrosion or internal buildup in the radiator core
• Damage from road debris or front-end impact
• Transmission cooling concerns tied to radiator service

Installation Notes and Tips

Verify inlet and outlet sizing, core dimensions, and tow-package configuration before installation. Drain the cooling system fully, inspect hoses and clamps, and confirm the transmission cooler line connections match the vehicle setup. After installation, refill with the correct coolant mixture and bleed air from the system according to factory service procedures.

Quality Assurance

Koyorad manufactures OE-equivalent radiators with the technical know-how and production experience needed for replacement cooling components. The A13113 is built to meet the listed vehicle applications with factory-style fitment and materials.

• Fits 2004-2009 Cadillac SRX, N/A
• Fits 2005-2006 Cadillac STS, N/A
• Fits 2008-2010 Cadillac STS, N/A