OE Quality
60-Day Returns

CSF 3129 Radiator
Overview of CSF 3129 Radiator for Mitsubishi Outlander
The CSF 3129 radiator is designed specifically for Mitsubishi Outlander models, providing reliable engine cooling with a durable aluminum core and plastic tanks. This radiator features a single-row core construction optimized for efficient heat dissipation in a down flow configuration.
- Core Thickness: 7/8 inch
- Core Width: 27 1/16 inches
- Core Length: 16 3/4 inches
- Core Material: Aluminum
- Tank Material: Plastic
- Inlet Diameter: 1 3/8 inches (center)
- Outlet Diameter: 1 3/8 inches (left)
- Radiator Core Row Quantity: 1
- Down Flow Type
- Oil Cooler: 11 13/16 inches (high-efficiency concentric type)
- Cap Not Included
About the 1 Row Plastic Tank Aluminum Core Brand Line
The CSF 1 Row Plastic Tank Aluminum Core product line combines OEM-style plastic tanks with a robust aluminum core to deliver dependable cooling performance. This line is engineered to meet factory specifications, ensuring compatibility and durability for vehicles like the Mitsubishi Outlander. The single-row core design balances cooling efficiency with a compact form factor suitable for various engine compartments.
Detailed Product Description
The CSF 3129 radiator features a 7/8 inch thick aluminum core that measures 27 1/16 inches wide and 16 3/4 inches long, providing a solid surface area for heat exchange. The plastic tanks are designed to withstand typical operating conditions while reducing weight. The radiator uses a down flow design, directing coolant from the top to the bottom, which is common in many Mitsubishi Outlander cooling systems. Both the inlet and outlet have a diameter of 1 3/8 inches, positioned center and left respectively, to match OEM hose connections. Additionally, the integrated high-efficiency concentric oil cooler enhances engine oil temperature regulation.
Common Applications and Issues Addressed
- Replacement for leaking or cracked radiators in Mitsubishi Outlander vehicles
- Restores proper engine cooling to prevent overheating
- Addresses reduced cooling efficiency due to clogged or damaged cores
- Suitable for vehicles requiring a down flow radiator configuration
- Compatible with Mitsubishi Outlander models needing a 1-row aluminum core radiator
Installation Notes and Tips
Ensure the radiator core dimensions and inlet/outlet positions match your Mitsubishi Outlander’s specifications before installation. This radiator does not include a cap, so reuse the existing cap or purchase a compatible CSF cap number 4503 separately. Properly bleed the cooling system after installation to avoid air pockets and ensure optimal performance.
Quality Assurance and Warranty
The CSF 3129 radiator is manufactured to meet OEM standards, using high-quality aluminum and plastic materials for durability and corrosion resistance. This radiator is free of hazardous materials and designed for long-term reliability. Warranty details should be confirmed with the distributor or manufacturer.
| Brand | CSF |
| Part Number | 3129 |
| Position | 1 Row Plastic Tank Aluminum Core |
| Core Thickness | 7/8 |
| Core Width | 27 1/16 |
| Core Material | Aluminum |
| Tank Material | Plastic |
| Core Length | 16 3/4 |
| Inlet Diameter | 1 3/8 centre |
| Outlet Diameter | 1 3/8 left |
| Down Flow Or Cross Flow Type | Down flow |
| Radiator Core Row Quantity | 1 |
| Cap Included | No |
| Box Height (in) | 4 14/16 |
| Box Length (in) | 29 11/16 |
| Box Weight (lbs) | 10 |
| Box Width (in) | 23 9/16 |
| Csf Cap Number | 4503 |
| Hazardous Material | No |
| Inlet Length (in) | 27 13/16 |
| Inlet Width (in) | 1 5/8 |
| Oil Cooler (in) | 11 13/16 (high-effeciency concentric type) |
| Outlet Length (in) | 27 13/16 |
| Outlet Width (in) | 1 5/8 |
| Tech Note | O.e.m. style plastic tanks & aluminum core. |
This part fits 1 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2003 | Mitsubishi | Outlander | 2.4L | L4 | N/A | OE style design with Mini 16 psi cap.; 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.