OE Quality
60-Day Returns

Spectra CU2538 Radiator
Spectra CU2538 Radiator for Heavy-Duty GM Cooling
The Spectra CU2538 radiator is built for OE-style durability and fitment in select Chevrolet and GMC trucks and SUVs. It is a direct replacement for applications that use engine oil cooling, transmission oil cooling, and 3/8 quick connect fittings.
- OE-style radiator construction for select GM heavy-duty applications
- Fits vehicles with a 37-13/16 in. x 19-7/16 in. x 1-1/4 in. core
- Includes provisions for engine oil cooler and transmission oil cooler
- Uses 3/8 quick connect fittings for the specified applications
- Cross-references OSC 2538 and Gates 2540 for the same application
Detailed Fitment and Application
Compatible with 2002 Chevrolet Avalanche 2500, 2001-2002 Chevrolet Silverado 2500 HD, 2001-2002 Chevrolet Silverado 3500, 2001-2002 Chevrolet Suburban 2500, 2001-2002 GMC Sierra 2500 HD, 2001-2002 GMC Sierra 3500, and 2001-2002 GMC Yukon XL 2500. The Spectra CU2538 is engineered to match the structure and design expectations of an OE replacement radiator for these Chevrolet Silverado and GMC Sierra applications.
Common Cooling System Issues
- Leaking radiator tanks or core seams
- Restricted coolant flow from internal corrosion or blockage
- Overheating caused by a failing radiator core
- Transmission temperature concerns tied to radiator cooler failure
- Loss of cooling performance in engine-oil-cooled applications
Installation Notes and Tips
Verify the core size, cooler provisions, and 3/8 quick connect fitting style before installation. Confirm that your Chevrolet Avalanche 2500, Silverado 2500 HD, Silverado 3500, Suburban 2500, Sierra 2500 HD, Sierra 3500, or Yukon XL 2500 matches the listed cooling configuration and model years before ordering the CU2538 radiator.
Quality Assurance
Spectra Premium radiators are built to meet OE-level durability and expectations for the listed GM applications. This part number is CU2538.
This part fits 17 vehicles. Search below:
| Year | Make | Model | Transmission | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2002 | Chevrolet | Avalanche 2500 | 8.1L | V8 | N/A | w/ 37-13/16 in. x 19-7/16 in. x 1-1/4 in. Core; w/ Engine Oil Cooler; w/ Transmission Oil Cooler; w/ 3/8 Quick Connect Fittings | |
| 2002 | Chevrolet | Silverado 2500 HD | Manual | 8.1L | V8 | N/A | w/ 37-13/16 in. x 19-7/16 in. x 1-1/4 in. Core; w/ Engine Oil Cooler; w/ Transmission Oil Cooler; w/ 3/8 Quick Connect Fittings |
| 2002 | Chevrolet | Silverado 2500 HD | Automatic | 8.1L | V8 | N/A | w/ 37-13/16 in. x 19-7/16 in. x 1-1/4 in. Core; w/ Engine Oil Cooler; w/ Transmission Oil Cooler; w/ 3/8 Quick Connect Fittings |
| 2002 | Chevrolet | Silverado 3500 | Manual | 8.1L | V8 | N/A | w/ 37-13/16 in. x 19-7/16 in. x 1-1/4 in. Core; w/ Engine Oil Cooler; w/ Transmission Oil Cooler; w/ 3/8 Quick Connect Fittings |
| 2002 | Chevrolet | Suburban 2500 | Automatic | 8.1L | V8 | N/A | w/ 37-13/16 in. x 19-7/16 in. x 1-1/4 in. Core; w/ Engine Oil Cooler; w/ Transmission Oil Cooler; w/ 3/8 Quick Connect Fittings |
| 2002 | GMC | Sierra 2500 HD | Manual | 8.1L | V8 | N/A | w/ 37-13/16 in. x 19-7/16 in. x 1-1/4 in. Core; w/ Engine Oil Cooler; w/ Transmission Oil Cooler; w/ 3/8 Quick Connect Fittings |
| 2002 | GMC | Sierra 2500 HD | Automatic | 8.1L | V8 | N/A | w/ 37-13/16 in. x 19-7/16 in. x 1-1/4 in. Core; w/ Engine Oil Cooler; w/ Transmission Oil Cooler; w/ 3/8 Quick Connect Fittings |
| 2002 | GMC | Sierra 3500 | Manual | 8.1L | V8 | N/A | w/ 37-13/16 in. x 19-7/16 in. x 1-1/4 in. Core; w/ Engine Oil Cooler; w/ Transmission Oil Cooler; w/ 3/8 Quick Connect Fittings |
| 2002 | GMC | Yukon XL 2500 | 8.1L | V8 | N/A | w/ 37-13/16 in. x 19-7/16 in. x 1-1/4 in. Core; w/ Engine Oil Cooler; w/ Transmission Oil Cooler; w/ 3/8 Quick Connect Fittings | |
| 2001 | Chevrolet | Silverado 2500 HD | Manual | 8.1L | V8 | N/A | w/ 37-13/16 in. x 19-7/16 in. x 1-1/4 in. Core; w/ Engine Oil Cooler; w/ Transmission Oil Cooler; w/ 3/8 Quick Connect Fittings |
| 2001 | Chevrolet | Silverado 2500 HD | Automatic | 8.1L | V8 | N/A | w/ 37-13/16 in. x 19-7/16 in. x 1-1/4 in. Core; w/ Engine Oil Cooler; w/ Transmission Oil Cooler; w/ 3/8 Quick Connect Fittings |
| 2001 | Chevrolet | Silverado 3500 | Manual | 8.1L | V8 | N/A | w/ 37-13/16 in. x 19-7/16 in. x 1-1/4 in. Core; w/ Engine Oil Cooler; w/ Transmission Oil Cooler; w/ 3/8 Quick Connect Fittings |
| 2001 | Chevrolet | Suburban 2500 | Automatic | 8.1L | V8 | N/A | w/ 37-13/16 in. x 19-7/16 in. x 1-1/4 in. Core; w/ Engine Oil Cooler; w/ Transmission Oil Cooler; w/ 3/8 Quick Connect Fittings |
| 2001 | GMC | Sierra 2500 HD | Manual | 8.1L | V8 | N/A | w/ 37-13/16 in. x 19-7/16 in. x 1-1/4 in. Core; w/ Engine Oil Cooler; w/ Transmission Oil Cooler; w/ 3/8 Quick Connect Fittings |
| 2001 | GMC | Sierra 2500 HD | Automatic | 8.1L | V8 | N/A | w/ 37-13/16 in. x 19-7/16 in. x 1-1/4 in. Core; w/ Engine Oil Cooler; w/ Transmission Oil Cooler; w/ 3/8 Quick Connect Fittings |
| 2001 | GMC | Sierra 3500 | Manual | 8.1L | V8 | N/A | w/ 37-13/16 in. x 19-7/16 in. x 1-1/4 in. Core; w/ Engine Oil Cooler; w/ Transmission Oil Cooler; w/ 3/8 Quick Connect Fittings |
| 2001 | GMC | Yukon XL 2500 | 8.1L | V8 | N/A | w/ 37-13/16 in. x 19-7/16 in. x 1-1/4 in. Core; w/ Engine Oil Cooler; w/ Transmission Oil Cooler; w/ 3/8 Quick Connect Fittings |
* 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.