What is the primary function of this upper coolant hose?

This hose is part of your vehicle's cooling system. It carries hot coolant from the engine's thermostat housing to the radiator, where it can be cooled down before circulating back to the engine.

Does this hose come with new hose clamps?

This part includes the molded coolant hose only. It is recommended to purchase new hose clamps separately, as old clamps can sometimes be difficult to reuse or may not provide a secure seal.

What other cooling system components should I inspect when replacing this hose?

When replacing the upper coolant hose, it's a good time to inspect the lower radiator hose for cracks or swelling, check the radiator for leaks or damage, and ensure the thermostat is functioning correctly.

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Gates 02-09 Chevrolet Trailblazer 6-Cyl. 4.2L Upper Molded Coolant Hose

Specifications

Brand: Gates
Part #: 22652
UPC: 00072053559798

Gates 02-09 Chevrolet Trailblazer 6-Cyl. 4.2L Upper Molded Coolant Hose

Name: Gates 02-09 Chevrolet Trailblazer 6-Cyl. 4.2L Upper Molded Coolant Hose
Brand: Gates
Price: 15.72 USD
Availability: InStock

$15.72

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Key Features

Fits 2002-2009 Chevrolet Trailblazer, 2002-2009 GMC Envoy, 2004-2007 Buick Rainier, 2003-2008 Isuzu Ascender, 2002-2004 Oldsmobile Bravada, and 2005-2009 Saab 9-7x.
Designed for 4.2L 6-cylinder engines.
Molded to fit the specific routing requirements of the application.
Connects the engine to the radiator for coolant circulation.

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Will this fit your vehicle?

Product Details

This is the upper molded coolant hose from Gates, part number 22652, specifically designed for the 4.2L 6-cylinder engine found in many GM SUVs. If you're working on a 2002-2009 Chevrolet Trailblazer, GMC Envoy, or similar vehicle and need to replace a cracked or leaking upper radiator hose, this part will get the job done.

Gates makes these hoses with materials that can handle the heat and pressure under the hood. It's molded to the specific shape needed for your engine, so it fits right without a struggle, unlike some universal hoses that can be tricky to route. This hose connects your engine's thermostat housing to the top of the radiator, circulating coolant to keep your engine from overheating.

When you're replacing a coolant hose, it's always a good idea to check the condition of the lower hose and the radiator itself. Make sure you have new hose clamps ready, as the old ones can sometimes be difficult to reuse.