Nissens 606649 Radiator - Front

Nissens 606649 Radiator for Hummer H3

The Nissens 606649 radiator is a front-mounted aluminum cooling component built for 2006-2010 Hummer H3 applications. It supports engine temperature control with a core sized for the vehicle’s cooling system requirements and is backed by Nissens’ focus on thermal and engine-efficiency components.

Key Features

• Aluminum radiator construction for efficient heat transfer
• Core dimensions: 22.8346 in. height, 18.5039 in. width, 1.1024 in. length
• Front position fitment for the Hummer H3
• OE-style replacement for radiator service on 2006-2010 Hummer H3 models
• Part number 606649 for accurate ordering and catalog matching

Detailed Description

Built by Nissens, part number 606649 is a radiator engineered for the front cooling position on the 2006-2010 Hummer H3. The aluminum core helps transfer heat away from the engine coolant, supporting stable operating temperatures during daily driving, towing, or stop-and-go use. This radiator cross-references Spectra Premium CU2855 and CU13017 for the same application.

Compatible With 2006-2010 Hummer H3, front. The fitment data confirms application coverage across the 2006, 2007, 2008, 2009, and 2010 model years, making this a direct search match for Hummer H3 radiator replacement needs.

What It Helps Address

• Coolant temperature rise from a leaking or restricted radiator
• Reduced heat dissipation caused by damaged radiator fins or tubes
• Overheating concerns tied to aging front cooling components
• Loss of cooling efficiency in a worn Hummer H3 radiator
• Service replacement for a front radiator on 2006-2010 Hummer H3 models

Installation Notes and Tips

Verify the radiator dimensions and front-position fitment before installation on your Hummer H3. Inspect hoses, clamps, and coolant condition during replacement, and flush the cooling system if contamination or debris is present. Confirm all connections are secure and check for leaks after refill and warm-up.

Quality Assurance

Nissens develops and manufactures thermal management components to consistent quality standards, with ongoing product development to support changing aftermarket requirements. Part number 606649 is built to the brand’s Genuine Nissens Quality standard.