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Spectra CU13690 Radiator
| Brand | Spectra CU13690 |
|---|---|
| Core Height | 33.4375 |
| Core Thickness | 2.1875 |
| Core Width | 28.375 |
| Inlet Header Length | 29.1875 |
| Outlet Header Length | 29.1875 |
| Core Material | Aluminum |
| Outlet Location | Bottom right |
| Tank Material | Plastic |
| Inlet Header Width | 3.375 |
| Outlet Header Width | 3.375 |
| Transmission Oil Cooler Type | Plated |
| Transmission Oil Cooler Distance between Fittings | 11.5 |
| Transmission Oil Cooler Fitting Type | Quick connect |
| Core Row Quantity | 2 |
| Frame Included | No |
| Inlet Diameter | 1.9375 |
| Inlet Location | Top left |
| Outlet Diameter | 2.25 |
| Transmission Oil Cooler Plate Quantity | 5 |
| Down Flow Or Cross Flow Type | Cross flow |
| Mounting Type | Saddle |
| Fits | Chevrolet and GMC · 16 vehicles |
OE-style design. Built to meet the durability expectations of original equipment.
Aluminum core. Helps promote efficient heat transfer with a lightweight build.
Cross-flow radiator. Engineered for effective cooling performance.
Cross-references Agility Autoparts 8013690, CSF 3843 and Dorman - First Stop 13690 for the same application. See all 10.
Spectra CU13690 Radiator Overview
The Spectra CU13690 radiator is built for direct replacement in select heavy-duty GM trucks, including 2017-2020 Chevrolet Silverado 2500 HD and Silverado 3500 HD, plus 2017-2020 GMC Sierra 2500 HD and Sierra 3500 HD. It uses an aluminum core with plastic tanks and a cross-flow layout to match OE-style cooling system packaging.
With a bottom-right outlet, top-left inlet, and integrated plated transmission oil cooler, this radiator is configured for the cooling demands of diesel and gas truck applications that rely on stable engine temperature and transmission fluid management. The Spectra CU13690 is a practical choice when replacing a leaking, clogged, or damaged radiator on Silverado and Sierra HD models.
Key Features
- Aluminum core with plastic tank construction
- Cross-flow design with saddle mounting
- Top-left inlet and bottom-right outlet locations
- Plated transmission oil cooler with quick-connect fittings
- Core dimensions: 33.4375 in. height, 28.375 in. width, 2.1875 in. thickness
- OE-style replacement for 2017-2020 Chevrolet Silverado 2500 HD, Silverado 3500 HD, GMC Sierra 2500 HD, and Sierra 3500 HD
Detailed Description
Spectra Premium radiators are engineered to meet the durability and fit expectations associated with original equipment applications. Part number CU13690 features a 2-row aluminum core, plastic end tanks, and a plated transmission oil cooler with 5 plates and 11.5 inches between fittings. The inlet measures 1.9375 inches and the outlet measures 2.25 inches, with header lengths of 29.1875 inches and header widths of 3.375 inches.
This radiator cross-references Dorman - First Stop 13690 and CSF 3843 for the same application. For buyers searching for a 2017-2020 Chevrolet Silverado 2500 HD radiator or a 2017-2020 GMC Sierra 3500 HD radiator, CU13690 provides the correct OE-style layout and connection points for a direct-fit replacement.
What This Radiator Helps Address
- Coolant leaks from a cracked or aging radiator tank
- Restricted coolant flow from internal corrosion or debris
- Overheating caused by reduced heat transfer efficiency
- Transmission fluid temperature issues tied to a failing cooler circuit
- Fitment problems from an incorrect radiator configuration
Installation Notes and Tips
Verify inlet and outlet locations, core dimensions, and transmission cooler connection style before installation. Inspect hoses, clamps, and mounting points for wear, and confirm the saddle-style mounting arrangement matches the vehicle. Flush the cooling system and check for contamination before installing the new radiator. After installation, refill with the correct coolant, bleed air from the system, and inspect for leaks at the quick-connect fittings and hose connections.
Quality Assurance
Spectra Premium designs this radiator to follow OE-style durability and fit expectations for heavy-duty truck cooling systems. It is built for the 2017-2020 Chevrolet Silverado 2500 HD and Silverado 3500 HD, as well as the 2017-2020 GMC Sierra 2500 HD and Sierra 3500 HD, with the cooling and transmission oil cooler layout required for those applications.
| Year | Make | Model | Liters | Cylinders | Notes |
|---|---|---|---|---|---|
| 2020 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | — |
| 2020 | Chevrolet | Silverado 3500 HD | 6.6L | V8 | — |
| 2020 | GMC | Sierra 2500 HD | 6.6L | V8 | — |
| 2020 | GMC | Sierra 3500 HD | 6.6L | V8 | — |
| 2019 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | — |
| 2019 | Chevrolet | Silverado 3500 HD | 6.6L | V8 | — |
| 2019 | GMC | Sierra 2500 HD | 6.6L | V8 | — |
| 2019 | GMC | Sierra 3500 HD | 6.6L | V8 | — |
| 2018 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | — |
| 2018 | Chevrolet | Silverado 3500 HD | 6.6L | V8 | — |
| 2018 | GMC | Sierra 2500 HD | 6.6L | V8 | — |
| 2018 | GMC | Sierra 3500 HD | 6.6L | V8 | — |
| 2017 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | — |
| 2017 | Chevrolet | Silverado 3500 HD | 6.6L | V8 | — |
| 2017 | GMC | Sierra 2500 HD | 6.6L | V8 | — |
| 2017 | GMC | Sierra 3500 HD | 6.6L | V8 | — |
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