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CSF 3960 Cooling Module
OE-Style Cooling Module for Ram 1500
CSF Part Number 3960 is an OE-style cooling module built for 2019-2023 Ram 1500 applications. It combines a heavy-duty aluminum radiator core with a plastic tank design and integrated condenser, oil cooler, and jumper tubes for a direct-fit cooling system assembly.
Key Features
- Fits 2019-2023 Ram 1500, N/A
- Upgraded heavy-duty radiator core measures 30mm thick, 11% thicker than the OEM 27mm core
- Cross-flow design with a single-row aluminum core
- Plastic tank construction
- Top hose fitting: 1 1/2 in. left; bottom hose fitting: 1 13/16 in. right
- Core dimensions: 27 1/2 in. length, 21 11/16 in. width, 1 3/16 in. thickness
- Includes condenser, oil cooler, and jumper tubes as part of the cooling module assembly
Product Details
CSF 3960 is engineered as a cooling module for the Ram 1500 platform, using an aluminum core for efficient heat transfer and a plastic tank layout for OE-style packaging. The module is designed around the listed fitment for 2019-2023 Ram 1500 models and uses a cross-flow configuration with matched inlet and outlet sizing for the application. CSF manufactures radiators to high-performance standards and validates cooling performance through laboratory wind-tunnel testing. This part cross-references BBB Industries 13952 for the same application.
Common Cooling Issues Addressed
- Cracked or leaking radiator core
- Reduced cooling efficiency from a worn OE-style module
- Heat buildup from an aging condenser or oil cooler assembly
- Fitment problems caused by damaged jumper tubes or hose connections
- Overheating concerns in a high-load Ram 1500 cooling system
Installation Notes
Verify hose orientation, core dimensions, and connector locations before installation. This module uses a left-side top hose fitting and right-side bottom hose fitting, so alignment with the vehicle’s cooling layout is important. Confirm all related cooling system components are inspected and serviced as needed during replacement.
Quality Assurance
CSF factories are ISO/TSO certified, and the brand has supplied radiators worldwide for more than 50 years. Part Number 3960 is built to CSF’s performance-focused manufacturing standards and validated for cooling performance in laboratory testing.
| Brand | CSF |
| Part Number | 3960 |
| Bottom Hose Fitting (in) | 1 13/16 right |
| Box Height (in) | 12 3/16 |
| Box Length (in) | 37 15/16 |
| Box Weight (lbs) | 27 |
| Box Width (in) | 25 1/2 |
| Core Length (in) | 27 1/2 |
| Core Material | Aluminum |
| Core Thickness (in) | 1 3/16 |
| Core Width (in) | 21 11/16 |
| Cross-flow/ Down-flow | Cross flow |
| Hazardous Material | No |
| Inlet Length (in) | 22 11/16 |
| Inlet Width (in) | 1 5/8 |
| No. Of Rows | 1 |
| Oil Cooler (in) | No |
| Outlet Length (in) | 22 11/16 |
| Outlet Width (in) | 1 5/8 |
| Radiator Cap Supplied | No |
| Tank Material | Plastic |
| Tech Note | O.e.m style cooling module with upgraded heavy duty radiator core |
| Top Hose Fitting (in) | 1 1/2 left |
This part fits 5 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2023 | Ram | 1500 | 3.0L | V6 | DIESEL | N/A | Upgraded Heavy Duty Core. 11% Thicker 30mm vs OEM 27mm |
| 2022 | Ram | 1500 | 3.0L | V6 | DIESEL | N/A | Upgraded Heavy Duty Core. 11% Thicker 30mm vs OEM 27mm |
| 2021 | Ram | 1500 | 3.0L | V6 | DIESEL | N/A | Upgraded Heavy Duty Core. 11% Thicker 30mm vs OEM 27mm |
| 2020 | Ram | 1500 | 3.0L | V6 | DIESEL | N/A | Upgraded Heavy Duty Core. 11% Thicker 30mm vs OEM 27mm |
| 2019 | Ram | 1500 | 3.0L | V6 | DIESEL | N/A | Upgraded Heavy Duty Core. 11% Thicker 30mm vs OEM 27mm |
* 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.