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CSF 3421 Radiator
Overview of CSF 1 Row Plastic Tank Aluminum Core Radiator
The CSF 1 Row Plastic Tank Aluminum Core Radiator (Part Number 3421) is engineered for reliable cooling performance in select Ford, Lincoln, and Mercury vehicles. Designed specifically for models like the Fusion, Milan, and Zephyr, this radiator combines durable materials with precise dimensions to meet OEM standards.
- Core Thickness: 15/16 inch
- Core Width: 16 7/8 inches
- Core Length: 25 7/8 inches
- Aluminum core with plastic tanks
- Cross flow design for efficient heat dissipation
- Inlet and outlet diameters: 1 1/2 inches (left inlet, right outlet)
- Includes high-efficiency plate type oil cooler (9 7/8 inches)
- One core row configuration
- Cap not included
Details on the 1 Row Plastic Tank Aluminum Core Product Line
The 1 Row Plastic Tank Aluminum Core line from CSF features radiators constructed with an aluminum core paired with OE-style plastic tanks. This combination offers a balance of lightweight design and corrosion resistance, suitable for vehicles requiring a single-row core configuration. Part number 3421 exemplifies this line by providing a cross flow radiator that aligns with factory specifications for Ford Fusion, Lincoln Milan, and Mercury Zephyr models.
Technical Description and Specifications
This radiator features a 15/16 inch thick aluminum core measuring 16 7/8 inches wide and 25 7/8 inches long, optimized for effective heat exchange. The cross flow design enhances coolant flow across the core, improving thermal management. The plastic tanks are designed to match OEM style and fitment, ensuring compatibility and ease of installation. Both the inlet and outlet have a diameter of 1 1/2 inches, positioned on the left and right sides respectively, facilitating proper hose connections. Additionally, the integrated 9 7/8 inch high-efficiency plate type oil cooler supports engine oil temperature regulation.
Applications and Common Issues Addressed
- Replacement for leaking or cracked radiators in Ford Fusion, Lincoln Milan, and Mercury Zephyr
- Resolves overheating caused by clogged or damaged radiator cores
- Addresses coolant leaks from plastic tanks or core joints
- Improves cooling efficiency in vehicles with single-row radiator configurations
- Supports engine oil cooling needs with integrated oil cooler
Installation Notes and Tips
- Ensure compatibility with Ford Fusion, Lincoln Milan, or Mercury Zephyr before installation
- Verify inlet and outlet hose diameters (1 1/2 inches) match vehicle specifications
- Check radiator mounting points and cross flow orientation for proper fit
- Replace radiator cap separately as it is not included with this part
- Inspect and flush cooling system prior to installation for optimal performance
Quality Assurance and Warranty Information
CSF radiators, including part number 3421, are manufactured to meet OEM quality standards with durable aluminum cores and plastic tanks designed for longevity. This radiator is free from hazardous materials and packaged securely to prevent damage during transport. Warranty details should be confirmed with the distributor or manufacturer, as they may vary by region.
| Brand | CSF |
| Part Number | 3421 |
| Position | 1 Row Plastic Tank Aluminum Core |
| Box Height (in) | 7 |
| Box Length (in) | 33 |
| Box Weight (lbs) | 13 |
| Box Width (in) | 21 |
| Cap Included | No |
| Core Length | 25 7/8 |
| Core Material | Aluminum |
| Core Thickness | 15/16 |
| Core Width | 16 7/8 |
| Down Flow Or Cross Flow Type | Cross Flow |
| Hazardous Material | No |
| Inlet Diameter | 1 1/2 Left |
| Inlet Length (in) | 17 7/8 |
| Inlet Width (in) | 1 7/8 |
| Oil Cooler (in) | 9 7/8 (high-efficiency Plate Type) |
| Outlet Diameter | 1 1/2 Right |
| Outlet Length (in) | 17 7/8 |
| Outlet Width (in) | 1 7/8 |
| Radiator Core Row Quantity | 1 |
| Tank Material | Plastic |
| Tech Note | O.E.M. style Plastic tanks & Aluminum core. |
This part fits 17 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2009 | Ford | Fusion | 3.0L | V6 | N/A | OE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core |
| 2009 | Ford | Fusion | 2.3L | L4 | N/A | OE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core |
| 2009 | Mercury | Milan | 2.3L | L4 | N/A | OE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core |
| 2009 | Mercury | Milan | 3.0L | V6 | N/A | OE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core |
| 2008 | Ford | Fusion | 2.3L | L4 | N/A | OE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core |
| 2008 | Ford | Fusion | 3.0L | V6 | N/A | OE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core |
| 2008 | Mercury | Milan | 2.3L | L4 | N/A | OE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core |
| 2008 | Mercury | Milan | 3.0L | V6 | N/A | OE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core |
| 2007 | Ford | Fusion | 2.3L | L4 | N/A | OE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core |
| 2007 | Ford | Fusion | 3.0L | V6 | N/A | OE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core |
| 2007 | Mercury | Milan | 2.3L | L4 | N/A | OE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core |
| 2007 | Mercury | Milan | 3.0L | V6 | N/A | OE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core |
| 2006 | Ford | Fusion | 2.3L | L4 | N/A | OE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core |
| 2006 | Ford | Fusion | 3.0L | V6 | N/A | OE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core |
| 2006 | Lincoln | Zephyr | 3.0L | V6 | N/A | OE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core |
| 2006 | Mercury | Milan | 2.3L | L4 | N/A | OE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core |
| 2006 | Mercury | Milan | 3.0L | V6 | N/A | OE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.