OSC 13402 Aluminum Downflow Radiator for BMW

The OSC 13402 is a precision-engineered direct-fit replacement radiator designed to meet or exceed OEM specifications for select BMW 228i and 320i models. Built from premium-grade aluminum with plastic end tanks, this radiator delivers reliable cooling performance and long service life.

Key Features:

• Aluminum and plastic construction for optimal heat dissipation
• Downflow radiator style for efficient coolant circulation
• Inlet location: Upper driver side
• No integrated transmission cooler
• Drop-in fit design matches OEM dimensions for easy installation
• Cadmium-plated tubes inside and out to prevent premature failure
• State-of-the-art testing including cycle, vibration, burst, and environment testing
• Designed with enhancements to solve original equipment design failures

OSC radiators are engineered to maintain consistent coolant flow and efficient heat dissipation under varying driving conditions. Each radiator undergoes rigorous quality testing up to three times during production to ensure reliable cooling performance for high-mileage vehicles. Premium-grade materials and factory construction standards deliver cooling efficiency that meets or exceeds original equipment specifications.