OSC 2621 Replacement Radiator

The OSC 2621 is a direct-fit replacement radiator designed for select 1998-1999 Honda and Isuzu vehicles. This OEM-quality radiator features a durable aluminum core with plastic tank construction, engineered to deliver reliable cooling performance and precise fitment.

Key Features:

• Aluminum core construction for excellent thermal conductivity and heat dissipation
• Plastic tank design with virgin grade engineered resins for enhanced strength and durability
• Includes integrated transmission oil cooler for automatic transmission applications
• Premium grade tubes, fins, headers, and tanks for improved durability
• 100% leak tested up to three times during production to ensure quality
• Drop-in fit design with all necessary fittings and hardware included
• Engineered to meet or exceed OEM specifications

OSC radiators undergo rigorous testing including vibration, cycle, and burst tests to simulate real-world driving conditions. The transmission and engine oil coolers are tested prior to installation, the core is tested before assembly, and the complete unit receives a final pressure test. This comprehensive quality control ensures reliable performance and long service life.

Specifications:

• Core dimensions: Approximately 16.75 x 24 x 1 inch
• Inlet/Outlet diameter: 1.5 inches
• Tank material: Engineered plastic
• Core material: Aluminum
• Transmission cooler: Included (concentric type)

Cross-reference part numbers include CSF 2621, Spectra Premium CU2195, TYC 2621, and OEM numbers 8-52478-811-0 (Honda/Isuzu). OSC is manufactured by US Motor Works and represents over 1400 SKUs of cooling system solutions designed for precise OEM fitment and function.