Description
Product overview
The CSF 3243 is an application-specific replacement radiator. Its construction pairs a copper core with brass tanks.
The radiator transfers heat from circulating engine coolant to the air passing through its core. Tube and fin condition, fan operation, and the airflow path all affect the cooling system’s ability to reject heat.
Technical specifications
- Bottom Hose Fitting (in): 1 1/2 Right
- Core Length (in): 23 1/4
- Core Material: Copper
- Core Thickness (in): 1 11/16
- Core Width (in): 21 5/8
- Flow orientation: Down Flow
- Matching CSF cap number: 4503
- Core rows: 3
- Oil Cooler (in): 14 3/8 (high-effeciency Concentric Type)
- Radiator Cap Supplied: No
- Tank Material: Brass
- Tech Note: ALL METAL Heavy Duty Multifit model with heater pipe & sensor port on top tank.
- Top Hose Fitting (in): 1 1/2 Left
Installation and compatibility
Compare the core dimensions, hose locations, mounting arrangement, and any internal cooler connections with the existing radiator. Select by the complete vehicle, engine, and transmission configuration; shared model names alone do not establish fitment. Follow the vehicle coolant filling and bleeding procedure after replacement.
Vehicle fitment
| Make | Model | Qualifiers | Year |
|---|---|---|---|
| Chevrolet | W3500 Tiltmaster | 5.7L V8 350ci GAS | 1995-2003 |
| Chevrolet | W3500 Tiltmaster | 6.0L V8 5967cc 364ci | 2003-2009 |
| Chevrolet | W4500 Tiltmaster | 5.7L V8 350ci GAS | 1998-2003 |
| Chevrolet | W4500 Tiltmaster | 6.0L V8 5967cc 364ci | 2003-2010 |
| GMC | W3500 Forward | 5.7L V8 350ci GAS | 1995-2003 |
| GMC | W3500 Forward | 6.0L V8 5967cc 364ci | 2004-2008 |
| GMC | W4500 Forward | 5.7L V8 350ci GAS | 1998-2002 |
| GMC | W4500 Forward | 6.0L V8 5967cc 364ci | 2003-2010 |
| Isuzu | NPR | 5.7L V8 5733cc 350ci GAS | 1994-1995 |
| Isuzu | NPR | 5.7L V8 350ci GAS | 1996-2002 |
| Isuzu | NPR-HD | 5.7L V8 350ci GAS | 1999-2002 |
Part number: CSF 3243.