What is the primary function of this upper radiator hose?

This hose connects the engine's upper coolant outlet to the radiator. Its main job is to allow hot coolant to flow from the engine to the radiator for cooling, and then back to the engine.

What material is the Gates 21135 hose made from?

The hose is constructed with an EPDM rubber inner tube and cover. This material is chosen for its ability to withstand high temperatures and resist degradation from engine coolant.

Does this hose come with any clamps?

This part number is for the molded coolant hose only. You will need to reuse your existing hose clamps or purchase new ones separately for installation.

Gates 21135 Upper Radiator Hose | Freightliner Columbia

Name: Gates 04-06 Freightliner Columbia 6-Cyl. 14.0L Diesel Upper Eng. To Rad. Molded Coolant Hose
Brand: Gates
SKU: gates-gates-04-06-freightliner-columbia-6-cyl-14-0l-diesel-upper-eng-to-rad-mold-t14-876874
Price: 50.00 USD
Availability: BackOrder

Gates 04-06 Freightliner Columbia 6-Cyl. 14.0L Diesel Upper Eng. To Rad. Molded Coolant Hose

$50.00

On Backorder

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

Gates 04-06 Freightliner Columbia 6-Cyl. 14.0L Diesel Upper Eng. To Rad. Molded Coolant Hose

Key Features

Fits 2004-2006 Freightliner Columbia with 6-Cyl. 14.0L Diesel engine.
Molded design ensures a precise fit for the upper engine to radiator connection.
Constructed with EPDM rubber for resistance to heat and coolant.
Reinforcement layers provide strength and help prevent collapse.
Designed to handle the pressures and temperatures of a diesel cooling system.

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Product Details

When it's time to replace the upper radiator hose on your 2004-2006 Freightliner Columbia with a 6-cylinder 14.0L diesel engine, Gates has you covered. This molded hose is specifically shaped to connect your engine's upper outlet to the radiator, ensuring coolant circulates properly to keep your engine from overheating.

Gates uses a durable EPDM rubber compound for the inner tube and cover, which is resistant to heat and coolant degradation. This means the hose can handle the high temperatures and pressures found in your cooling system for a long time. The reinforcement layers are designed to give the hose the strength it needs to maintain its shape and prevent collapse under vacuum, while still allowing for the necessary flexibility during engine operation.

This hose is a direct replacement, meaning it's built to fit right into the factory location without any modifications. Having the correct shape and connection points is key to a leak-free installation and reliable cooling system performance.