OE Quality
60-Day Returns

CSF 3846 Radiator
Reliable Cooling Solution for Ford and Lincoln Vehicles
The CSF 3846 radiator is engineered to provide efficient cooling performance for select Ford and Lincoln models. Designed with durable materials and precise dimensions, this radiator supports optimal engine temperature management for vehicles like the Ford F-150, Expedition, and Lincoln Navigator.
- Core thickness: 1 1/4 inches for effective heat dissipation
- Core dimensions: 34 3/4 inches length by 17 11/16 inches width
- Aluminum core combined with OEM-style plastic tanks
- Cross flow design for improved coolant circulation
- Inlet and outlet diameters: 1 1/2 inches (right inlet, left outlet)
- Single-row radiator core for compatibility with specified models
- Quick-connect outlet for easier installation
Detailed Radiator Specifications and Design
The CSF 3846 radiator features a 1 1/4 inch thick aluminum core that ensures efficient heat transfer while maintaining lightweight durability. The core measures 34 3/4 inches in length and 17 11/16 inches in width, providing ample surface area for cooling. The plastic tanks are designed in an OEM style, matching factory specifications for a seamless fit. This radiator uses a cross flow configuration, which enhances coolant flow across the core, improving overall cooling efficiency. The inlet and outlet ports both measure 1 1/2 inches in diameter, with the inlet positioned on the right and the outlet on the left, matching the plumbing layout of Ford Expedition, F-150, and Lincoln Navigator models. Additionally, the quick-connect outlet design simplifies installation and maintenance.
Compatible Vehicles and Applications
This radiator is compatible with the following vehicles:
- Ford Expedition
- Ford F-150
- Lincoln Navigator
It is designed to replace original equipment radiators that require a single-row aluminum core with plastic tanks and cross flow design. The CSF 3846 radiator is suitable for addressing common cooling system issues such as overheating, coolant leaks, and reduced cooling efficiency.
Common Issues Addressed by This Radiator
- Engine overheating due to inefficient heat dissipation
- Coolant leaks from damaged or cracked radiator tanks
- Reduced coolant flow caused by clogged or corroded cores
- Failure of original radiator components leading to poor engine performance
- Compatibility issues with aftermarket radiators lacking OEM-style fittings
Installation Notes and Tips
- Ensure the radiator matches the vehicle’s inlet and outlet port locations and diameters
- Use proper coolant and follow manufacturer’s recommended filling procedures
- Inspect hoses and clamps for wear and replace if necessary during installation
- Verify secure connection of quick-connect outlet to prevent leaks
- Bleed the cooling system to remove air pockets after installation
Quality Assurance and Warranty Information
The CSF 3846 radiator is manufactured to meet OEM standards, featuring high-quality aluminum core and plastic tank materials. It is designed to provide reliable cooling performance and durability under normal operating conditions. While specific warranty details may vary, CSF products typically include a limited warranty against defects in materials and workmanship. Consult product documentation or the manufacturer for exact warranty terms.
| Brand | CSF |
| Part Number | 3846 |
| Box Height (in) | 8 7/16 |
| Box Length (in) | 45 3/16 |
| Box Weight (lbs) | 17 |
| Box Width (in) | 21 3/4 |
| Cap Included | No |
| Core Length | 34 3/4 |
| Core Material | Aluminum |
| Core Thickness | 1 1/4 |
| Core Width | 17 11/16 |
| Down Flow Or Cross Flow Type | Cross Flow |
| Hazardous Material | No |
| Inlet Diameter | 1 1/2 Right |
| Inlet Length (in) | 18 3/8 |
| Inlet Width (in) | 1 1/2 |
| Outlet Diameter | 1 1/2 Left |
| Outlet Length (in) | 18 3/8 |
| Outlet Width (in) | 2 5/16 |
| Radiator Core Row Quantity | 1 |
| Tank Material | Plastic |
| Tech Note | O.E.M. style Plastic tanks & Aluminum core with quick-connect outlet pipe. |
This part fits 22 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2024 | Ford | Expedition | 3.5L | V6 | N/A | Upgraded Heavy Duty Core. 15% Thicker 30mm vs OEM 26mm |
| 2023 | Ford | Expedition | 3.5L | V6 | N/A | Upgraded Heavy Duty Core. 15% Thicker 30mm vs OEM 26mm |
| 2022 | Ford | Expedition | 3.5L | V6 | N/A | Upgraded Heavy Duty Core. 15% Thicker 30mm vs OEM 26mm |
| 2021 | Ford | Expedition | 3.5L | V6 | N/A | Upgraded Heavy Duty Core. 15% Thicker 30mm vs OEM 26mm |
| 2021 | Lincoln | Navigator | 3.5L | V6 | N/A | Upgraded Heavy Duty Core. 15% Thicker 30mm vs OEM 26mm |
| 2020 | Ford | Expedition | 3.5L | V6 | N/A | Std Duty |
| 2020 | Ford | F-150 | 3.3L | V6 | N/A | Upgraded Heavy Duty Core. 15% Thicker 30mm vs OEM 26mm |
| 2020 | Lincoln | Navigator | 3.5L | V6 | N/A | Std Duty |
| 2019 | Ford | Expedition | 3.5L | V6 | N/A | Std Duty |
| 2019 | Ford | F-150 | 3.5L | V6 | N/A | w/o Towing Pkg; w/ Towing Pkg Medium Duty |
| 2019 | Ford | F-150 | 5.0L | V8 | N/A | |
| 2019 | Ford | F-150 | 3.3L | V6 | N/A | w/o Towing Pkg; w/ Towing Pkg Medium Duty |
| 2019 | Lincoln | Navigator | 3.5L | V6 | N/A | Std Duty |
| 2018 | Ford | Expedition | 3.5L | V6 | N/A | Std Duty |
| 2018 | Ford | F-150 | 5.0L | V8 | N/A | |
| 2018 | Ford | F-150 | 3.5L | V6 | N/A | w/o Towing Pkg; w/ Towing Pkg Medium Duty |
| 2018 | Ford | F-150 | 3.3L | V6 | N/A | w/o Towing Pkg; w/ Towing Pkg Medium Duty |
| 2018 | Lincoln | Navigator | 3.5L | V6 | N/A | Std Duty |
| 2017 | Ford | F-150 | 3.5L | V6 | N/A | w/ EcoBoost Engine; w/o Towing Pkg; w/ Towing Pkg Medium Duty |
| 2017 | Ford | F-150 | 5.0L | V8 | N/A | w/ Towing Pkg Heavy Duty |
| 2016 | Ford | F-150 | 5.0L | V8 | N/A | w/ Towing Pkg Heavy Duty |
| 2015 | Ford | F-150 | 5.0L | V8 | N/A | w/ Towing Pkg Heavy Duty |
* 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.