OSC 13445 OE Replacement Engine Coolant Radiator

The OSC 13445 is an OE-style direct-fit replacement engine coolant radiator engineered to restore proper cooling system performance. Designed as a drop-in replacement, this radiator matches the original unit's fitment and function, making installation straightforward without cutting or modifications.

OSC radiators are built using the original equipment unit as a baseline, ensuring each part meets or exceeds OEM specifications for heat dissipation, coolant flow, and long-term durability. Rigorous testing—including cycle, vibration, burst, and environmental testing—is performed on cores before and after assembly to verify quality and leak-free integrity.

Key Features:

• OE-style aluminum core with plastic tanks for proven thermal conductivity and corrosion resistance
• 1-Row crossflow core design matching original factory configuration
• 1-1/2" inlet and 1-1/2" outlet connections
• Core dimensions: approximately 28-3/4" W x 20" H x 1-5/8" D
• No transmission oil cooler (TOC); no engine oil cooler (EOC) — matches standard non-tow package configuration
• Direct bolt-on fitment — no drilling, cutting, or fabrication required
• Tested to meet or exceed original equipment cooling performance standards
• OEM cross-reference part numbers: CU13445, 13364, CU13364, EB5Z8005A

OSC (OSC Automotive / OSC Heat Transfer Products) is a dedicated manufacturer of OEM-quality heat transfer components with over 1,400 SKUs in their cooling product lineup. Each radiator is engineered to go in as easily as the original comes out, delivering factory-correct appearance and function.