Gates 22404 Premium Molded Coolant Hose

The Gates 22404 Molded Coolant Hose is a dedicated replacement part designed for automotive cooling systems. It targets common cooling failures by using materials engineered to prevent electrochemical degradation, which is the primary cause of hose breakdown over time. It suits vehicle owners and mechanics looking for a direct-fit component that maintains structural integrity under normal engine operating conditions.

Constructed with an EPDM rubber tube, a synthetic fiber knit reinforcement, and a protective EPDM cover, this hose resists exposure to engine heat, ozone, and chemical coolants. The specialized materials also ensure that the hose will not collapse under vacuum pressure, keeping fluid circulating properly without restrictive pinching or kinking.

Because this is a pre-shaped, molded hose, it is made to fit a specific layout and establish sealed connections. However, the listing does not include vehicle compatibility charts, hose dimensions, or installation hardware like clamps, so you will need to verify that this exact part number matches your vehicle before installing.

Verdict: The Gates 22404 Coolant Hose is a dependable choice for drivers replacing a worn cooling line with an OEM-spec part. If this model number matches your vehicle routing, its reinforced EPDM build provides strong defense against heat, chemical wear, and vacuum collapse.

• Tube Material: EPDM
• Reinforcement: Synthetic fiber knit
• Cover Material: Heat, ozone, and chemical coolant-resistant EPDM
• Industry Standards: SAE 20R4 class D2, DIN 73411 class A (except tolerances)

A great fit if you:

• Need a replacement radiator hose matching part number 22404.
• Want synthetic fiber reinforcement that prevents collapse under vacuum.
• Need materials that resist ozone, high heat, and chemical coolant exposure.

Consider something else if you:

• Need a universal, flexible hose rather than a pre-shaped molded line.
• Require a complete kit that comes packaged with hose clamps.

What materials are used to make this hose?
The hose features an EPDM inner tube, a synthetic fiber knit reinforcement layer, and an outer EPDM cover that resists heat, ozone, and chemical coolants.

Will this hose collapse under suction?
No, it is built with specifically engineered materials designed to resist collapsing under vacuum.

What technical standards does this hose meet?
It meets the requirements of SAE 20R4, class D2 and DIN 73411, class A, except for tolerances.