CSF Chevy Colorado 5.3L / GMC Canyon 5.3L / Hummer H3 All-Aluminum Radiator

With over fifty years of expertise in radiator manufacturing, CSF stands as a leader in delivering superior cooling solutions for demanding automotive applications. The CSF Chevy Colorado 5.3L / GMC Canyon 5.3L / Hummer H3 All-Aluminum Radiator exemplifies this legacy by combining advanced engineering with durable materials to ensure optimal engine temperature regulation under various operating conditions.

Specifically engineered for both on-road and off-road performance, this heavy-duty radiator is an essential component for drivers who require reliable cooling in challenging environments. Whether navigating rugged trails, towing heavy loads, or engaging in everyday driving, the CSF radiator provides consistent thermal management to protect your engine and maintain peak performance.

At the core of this radiator’s innovation is the exclusive CSF B-Tube Technology. Unlike conventional oval-shaped “O” tubes, CSF’s uniquely shaped “B” tubes are precision-formed and seam-brazed to create a stronger, lighter structure. This design allows the use of thinner aluminum material without compromising strength, resulting in enhanced cooling efficiency. The inlet positioned centrally within the tube increases the heat transfer surface area by approximately 15% compared to standard tubes, effectively delivering the cooling capacity of two smaller tubes within the same spatial constraints.

Additionally, the B-Tube design facilitates dual liquid laminar flow, optimizing coolant movement and heat dissipation. Complementing this is the radiator’s ultra-efficient multi-louvered fins, which are meticulously aligned to maximize airflow through the core. Each fin’s specifications, including a 6.5mm fin height and multi-louvered pattern, are precisely engineered and validated through rigorous wind-tunnel testing to ensure maximum heat rejection performance.

The CSF H3 Hummer radiator is engineered as a true “drop-in fit” replacement, requiring no modifications during installation. All brackets are CNC machined and welded to OEM standards, ensuring exceptional durability and precise fitment. The inlet and outlet connections are designed to match original equipment manufacturer (OEM) specifications, allowing seamless integration with existing hoses and aftermarket components. This ensures compatibility with OEM quick-connect hoses, AC condensers, mounting brackets, and fan shrouds, simplifying installation and reducing downtime.

Features

• 2-Row 42mm Core (Dual Core) Featuring CSF's Exclusive B-Tube Technology for Enhanced Strength and Cooling Efficiency
• Core Equipped with Ultra-Efficient Multi-Louvered Fins, 6.5mm Fin Height, Optimized for Maximum Surface Area and Airflow
• CNC Machined Quick-Connect Inlet and Outlet Connections for Precise Fit and Reliable Sealing
• CNC Machined Brackets and Fittings Engineered for Superior Durability and OEM Compatibility
• All-Aluminum Race Style Drain Plug for Efficient Maintenance and Longevity
• 1-Hour Mirror Finish Hand Polish for Corrosion Resistance and Aesthetic Excellence
• True Drop-In Fit Design, Requiring No Modifications, Compatible with OEM Components Including Quick Connect Hoses, AC Condenser, Mounting Brackets, and Fan Shroud

Applications

OEM Part Numbers

• GM: 25964054

Warranty

Cooling Systems and Flexibles, Inc. (CSF) guarantees the quality and performance of its High-Performance Cooling Systems under normal use and service conditions to the original purchaser of the vehicle in which the product was installed. This warranty reflects CSF’s commitment to manufacturing products that meet stringent quality and reliability standards. For comprehensive warranty details, please visit our Warranty Page.

SKU# 7061 Warranty Term: 2 years

In summary, the CSF Chevy Colorado 5.3L / GMC Canyon 5.3L / Hummer H3 All-Aluminum Radiator represents a premium cooling solution engineered to meet the rigorous demands of modern vehicles. Its innovative B-Tube technology, precision manufacturing, and compatibility with OEM components make it a dependable choice for professionals and enthusiasts seeking enhanced engine cooling performance and durability. Trust CSF to deliver a product that not only fits perfectly but also provides superior heat dissipation, ensuring your vehicle operates efficiently and reliably in all conditions.

Unless explicitly stated otherwise, all products sold by R44 Performance Limited are designated RACE ONLY and are solely for competition or off-road use limited to racing formally sanctioned by a recognized racing organization. Any other use, including recreational off-road use, may violate local, state, and Federal laws. R44 Performance Limited does not implicitly or explicitly confirm the legality of using any products it sells on public roads; that is entirely the responsibility of the consumer.

It is the responsibility of the customer to check with all federal, state local and environmental laws before ordering and installing a product. R44 Performance Limited is not responsible for any fees, fines or costs that a customer may incur as a result of failing to check with federal, state, local or environmental laws before ordering and installing a product.

We get a large number of custom orders and requests everyday, so as a result it is not always possible for us to keep every item in stock at all times in our warehouse. If you require the item urgently please contact our sales team here to check the stock before you make your purchase.

We totally understand if you're not certain a part will be compatible with your car, so we highly recommend contacting us here with your query. Our friendly sales team will then be in touch to confirm if this part is the correct part you are looking for.

All in stock products ship the same day if ordered before 2pm GMT

For out of stock items we will contact you with an estimated wait time if not otherwise specified above.

We offer worldwide shipping on all products. If upon receiving your product you wish to return; we offer a 30-day returns policy. For our in-depth returns information please follow the link. "R44 Returns Policy

All of our products come with a standard warranty of 1-3 years. This is dependant on the type of product however. For more details please see our warranty page here.