2020-2023 Chevrolet Silverado 2500/3500 HD 6.6L OEM Radiator
SHIPPING - RETURNS - WARRANTY - CANCELLATION POLICY
*** Market Conditions after 2020 have changed the landscape of automotive parts. Although we try to stock 1000's of items in our multiple warehouse and use multiple distribution channels, having back-orders are unavoidable in today's market. If you are in need of a product quickly, we suggest email, message, or call us for availability so that we may explore your options.
Email: Sales@Speedzoneweb.com
Call: 407-846-8430
Text: 407-749-6314
Frequently Asked Questions
2020–2023 Chevrolet Silverado 2500/3500 HD 6.6L OEM Radiator
Direct replacement radiator engineered for the 6.6L Duramax diesel platform. Built to OEM specifications for reliable cooling under heavy-duty conditions. Hard panel construction with factory core design ensures compatibility with existing cooling system components.
Key Features
- OEM-spec core design - Maintains original heat dissipation performance without modification
- Factory mounting points - Bolts directly into existing frame locations, no drilling or adapter plates required
- Duramax-rated capacity - Sized for the thermal load of the 6.6L diesel engine under towing and sustained use
Specs
- Material: Aluminum
- Configuration: Single-pass core with OEM tank design
- Condition: New
Whats Included
- Radiator assembly
Frequently Asked Questions
Do I need to drain the entire cooling system to swap this in?
Yes. Disconnect both hoses, drain the system into a catch pan, then unbolt the radiator from the frame. Reverse the process with your new unit. Have a fresh coolant mix ready before refill.
Will this work with my existing hoses and thermostat housing?
Factory hoses and housing connect at the same points, so no adapter fittings are needed. Verify hose condition before reinstall — if they're original, consider replacing them at the same time.
What's the return window if this radiator doesn't fit?
Test-fit before you seal it into the engine bay. If it doesn't align with your mounting points or hose connections, reach out to us within 30 days for next steps.
Our History
For 26 years Speedzone Performance LLC has been providing aftermarket car parts to Central Floridians and 1000's of customers online. What makes us different than all the other places online? We have 3 actual brick and mortar locations where were serve customers daily and find new ways to provide support and assistance to the automotive community at large. From our in house SPDZ1 Brand, to our constantly growing in stock inventory, we strive to make our customer service and ease of purchase stand out from the rest! We are also one of the largest automotive part financing providers anywhere in the United States, and continue to provide more options for our customers every year. We love what we do, and it shows in every product we sell and every new customer who becomes a part of our Speedzone Family.