Gates 23460 Premium Molded Coolant Hose

The Gates 23460 Molded Coolant Hose is a replacement radiator hose designed to route engine coolant reliably without collapsing or leaking. It serves drivers and mechanics looking to replace a worn cooling line with a pre-shaped component built specifically to fit standard cooling pathways.

Its construction relies on an EPDM inner tube paired with an EPDM outer cover, reinforced by a synthetic fiber knit. This multi-layer build protects the hose against harsh under-hood conditions, including heat, ozone, and chemical coolant exposure. The specifically-engineered materials also ensure the hose maintains its shape under internal vacuum forces.

A major design focus is defense against electrochemical degradation, which is the leading cause of hose failure. Furthermore, the hose meets SAE 20R4 (class D2) requirements and DIN 73411 (class A, except for tolerances), confirming it satisfies established industry manufacturing benchmarks for automotive cooling systems.

Because this is a pre-formed hose, it is shaped for a specific routing configuration and cannot be easily bent to fit universal or custom cooling setups. Additionally, the listing does not include specific vehicle make, model, or year compatibility details, requiring buyers to cross-reference part numbers before purchasing.

Verdict: The Gates 23460 Coolant Hose is a reliable choice for vehicle owners needing a durable, pre-shaped radiator hose with built-in resistance to heat and electrochemical breakdown. Ensure the part number matches your vehicle requirements before ordering.

A great fit if you:

• Need a direct-fit, pre-molded radiator hose for your cooling system.
• Want a hose built to resist electrochemical degradation and vacuum collapse.
• Prefer EPDM construction with synthetic fiber knit reinforcement.

Consider something else if you:

• Need a flexible, universal-fit hose for a custom engine setup.
• Are looking for an unshaped straight coolant hose.

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

Does this hose prevent vacuum collapse?
Yes, it is manufactured with specifically-engineered materials and synthetic knit reinforcement designed to resist collapse under vacuum.

What industry standards does this product meet?
It meets the requirements of SAE 20R4 class D2 and DIN 73411 class A (with the exception of tolerances).