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CSF 2651 Radiator
CSF 2651 Radiator for Nissan Altima
The CSF 2651 is an OE-style radiator built for 1993-1999 Nissan Altima applications. It uses a 1-row aluminum core with plastic tanks, a down-flow layout, and factory-style inlet and outlet sizing for a direct replacement approach.
Key Features
- Part number 2651 from CSF
- 1-row radiator with aluminum core and plastic tanks
- Down-flow design
- Core thickness: 7/8 in.
- Core width: 27 1/16 in. and core length: 14 7/8 in.
- Inlet diameter: 1 3/8 in. right; outlet diameter: 1 3/8 in. left
- OE-style plastic tank and aluminum core construction
- Oil cooler section: 11 13/16 in. high-efficiency concentric type
Product Details
CSF manufactures radiators to high-performance standards and validates cooling performance through lab testing, including wind tunnel evaluation. The brand has supplied radiators worldwide for decades and offers a broad catalog of applications, including this CSF 2651 radiator for Nissan Altima models from 1993 through 1999. This part cross-references Spectra Premium CU1573 for the same application.
Common Cooling Issues This Radiator Can Address
- Cracked or leaking radiator tanks
- Restricted coolant flow from an aging core
- Overheating caused by reduced heat transfer
- Corrosion or internal buildup in the original radiator
- Fitment problems from a damaged OE-style replacement unit
Installation Notes
Fits 1993-1999 Nissan Altima, N/A. Verify inlet and outlet orientation before installation: inlet is on the right and outlet is on the left. This radiator is designed for use with a mini, 13 psi cap, and CSF cap number 4502 is listed for reference. Confirm all hose connections, transmission or oil cooler routing where applicable, and overall dimensions against the original unit before final assembly.
Quality Assurance
CSF radiators are produced in ISO/TSO-certified factories and engineered for cooling performance validation. The 2651 follows an OE-style plastic tank and aluminum core design for a factory-type replacement on Nissan Altima cooling systems.
| Brand | CSF |
| Part Number | 2651 |
| Position | 1 Row Plastic Tank Aluminum Core |
| Core Thickness | 7/8 |
| Core Width | 27 1/16 |
| Core Material | Aluminum |
| Tank Material | Plastic |
| Core Length | 14 7/8 |
| Inlet Diameter | 1 3/8 right |
| 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) | 9 |
| Box Width (in) | 21 3/4 |
| Csf Cap Number | 4502 |
| Hazardous Material | No |
| Inlet Length (in) | 27 13/16 |
| Inlet Width (in) | 1 9/16 |
| Oil Cooler (in) | 11 13/16 (high-effeciency concentric type) |
| Outlet Length (in) | 27 13/16 |
| Outlet Width (in) | 1 9/16 |
| Tech Note | O.e.m. style plastic tanks & aluminum core. |
This part fits 7 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1999 | Nissan | Altima | 2.4L | L4 | N/A | OE Style Design; Use Mini, 13 psi Cap; 1 Row Plastic Tank Aluminum Core |
| 1998 | Nissan | Altima | 2.4L | L4 | N/A | OE Style Design; Use Mini, 13 psi Cap; 1 Row Plastic Tank Aluminum Core |
| 1997 | Nissan | Altima | 2.4L | L4 | N/A | OE Style Design; Use Mini, 13 psi Cap; 1 Row Plastic Tank Aluminum Core |
| 1996 | Nissan | Altima | 2.4L | L4 | N/A | OE Style Design; Use Mini, 13 psi Cap; 1 Row Plastic Tank Aluminum Core |
| 1995 | Nissan | Altima | 2.4L | L4 | N/A | OE Style Design; Use Mini, 13 psi Cap; 1 Row Plastic Tank Aluminum Core |
| 1994 | Nissan | Altima | 2.4L | L4 | N/A | OE Style Design; Use Mini, 13 psi Cap; 1 Row Plastic Tank Aluminum Core |
| 1993 | Nissan | Altima | 2.4L | L4 | N/A | OE Style Design; Use Mini, 13 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.