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The CSF replacement plastic radiator for GMC Sierra 2500HD (2011–2016) 6.6L restores OEM cooling performance with a direct-fit design. It replaces the factory unit to help regulate engine temperature and maintain reliable coolant circulation. Made to match original mounting and hose locations, this radiator is offered as a straightforward OEM-spec plastic replacement for affected heavy-duty applications.
CSF 11-16 GMC Sierra 2500HD 6.6L OEM Plastic Radiator
