One Stop Solutions 13366 Radiator

Radiator for Cadillac XTS

Restore cooling performance with this OSC Premium New Automotive Radiator, part number 13366. Built for OES form and function, it is engineered for the 2013-2019 Cadillac XTS, Main Radiator application with a crossflow design and integrated transmission oil cooler.

Key Features

• Fits 2013-2019 Cadillac XTS, Main Radiator
• Crossflow radiator design with plastic tanks and a PA core material construction
• Core dimensions: 26 3/4 in. height, 15 5/8 in. width, and 1 in. thickness
• 1 3/8 in. inlet and outlet diameters for proper hose connection sizing
• Transmission oil cooler included with plated cooler type and 11 1/2 in. fitting spacing
• Single-row core layout for OE-style packaging
• Die-cut gasket design helps support leak-resistant sealing
• Individually pressure tested during production

Detailed Description

The OSC 13366 radiator is built as a direct replacement for the Cadillac XTS main radiator application. It uses premium-grade aluminum construction with cadmium-plated tubes inside and out to help resist premature failure, while maintaining OE-style fit and function. The radiator is engineered with fitted and torqued components to factory specifications and includes the transmission oil cooler where originally equipped. This part cross-references Spectra Premium CU13366 and also references 22747160 and A13366 for the same application.

For drivers searching for a 2013-2019 Cadillac XTS radiator replacement, part number 13366 provides the correct crossflow layout, integrated cooler design, and dimensions needed for a clean drop-in installation. It is a practical choice for replacing a leaking, restricted, or damaged radiator on the Cadillac XTS.

What It Helps Fix

• Coolant leaks from cracked tanks, seams, or aged seals
• Overheating caused by reduced radiator efficiency
• Transmission temperature concerns related to a failing cooler circuit
• Restricted coolant flow from internal corrosion or debris buildup
• Fitment issues from a damaged or incorrect replacement radiator

Installation Notes and Tips

Verify hose diameter, cooler fitting spacing, and overall core dimensions before installation. Inspect the cooling system for contamination, damaged hoses, and worn clamps before installing the new radiator. Flush the system if coolant breakdown or debris is present, and confirm proper fill and bleed procedures after installation.

Quality Assurance

OSC tests the radiator core before assembly, then tests the transmission and engine oil coolers prior to installation into the tank, and tests the completed unit again after assembly. The design is built to meet original equipment cooler design requirements where originally equipped and is produced with multi-fit engineering without compromising fit or appearance.