OSC 2947 Aluminum Crossflow Radiator with Transmission Cooler

The OSC 2947 is a premium replacement radiator engineered for heavy-duty Chevrolet and GMC trucks equipped with 8.1L engines and Allison automatic transmissions. This aluminum and plastic crossflow design delivers OE-quality cooling performance with enhanced durability features for extended service life.

Construction and Materials:

• Premium grade aluminum core with plastic tanks for optimal heat dissipation
• Cadmium-plated tubes inside and out to prevent premature corrosion and failure
• 2-row crossflow core design for maximum cooling efficiency
• Integrated transmission cooler for vehicles originally equipped
• Die-cut gaskets ensure leak-free operation
• Natural aluminum finish with 1.563-inch radiator inlet

Quality Assurance:

• Individually pressure tested up to three times during production
• Transmission and oil coolers tested before tank installation
• Radiator core tested before and after assembly
• State-of-the-art cycle, vibration, burst, and environmental testing
• Engineered for drop-in fit with exact OEM dimensions

Engineering Enhancements:

OSC addresses original equipment design weaknesses by incorporating improvements such as increased fin density, thicker cores, and larger transmission coolers where needed. These enhancements help vehicles reach higher mileage with improved cooling performance and longer component life.

Installation:

This radiator is designed for direct OEM replacement with no modifications required. All necessary fittings and hardware are included for straightforward installation. Components are fitted and torqued to factory specifications for reliable performance.

Suitable for heavy-duty applications and high-mileage vehicles requiring superior heat transfer and cooling efficiency. UPC: 845804066506