Keystone GM3010536 OEM Replacement Radiator for Cadillac SRX & STS 3.6L/4.6L

The Keystone GM3010536 is a direct-fit OEM replacement radiator designed for the Cadillac SRX (2004–2009) and Cadillac STS (2005–2010) equipped with 3.6L V6 or 4.6L V8 engines. This radiator assembly restores proper engine coolant circulation and thermal management, replacing worn or damaged units with a part engineered to factory specifications.

Constructed with an aluminum core and plastic end tanks, this crossflow-style radiator delivers efficient heat dissipation to protect against engine overheating. The unit is built without an internal transmission oil cooler or engine oil cooler, making it the correct replacement for standard (non-tow-package) configurations.

Key Specifications:

• Core construction: Aluminum
• Tank construction: Plastic
• Flow type: Crossflow
• Core height: Approx. 20-2/5 in.
• Core length: Approx. 23-3/5 in.
• Core thickness: Approx. 1 in.
• Inlet diameter: Approx. 1-5/16 in.
• Outlet diameter: Approx. 1-5/16 in.
• Transmission oil cooler: Not included
• Engine oil cooler: Not included
• Rows: 1

OEM & Cross-Reference Part Numbers:

• OEM / GM Part Numbers: 19130399, 19130364
• Partslink: GM3010536
• Also cross-references: TYC 13113, CU13113

This radiator is engineered as a direct drop-in replacement, requiring no drilling or modification for installation. It is individually leak-tested to ensure a defect-free unit out of the box.