Gates Molded Coolant Hose is manufactured to fit specific applications. Similar to OEM specifications. Approved for marine applications.

• Recommend for upper, lower, by-pass, heater and other coolant hose applications.
• Heat and ozone resistant cover.
• Engineered to resist electrochemical degradation - the leading cause of hose failure.
• Re-engineered materials resist vacuum collapse. This reduces the need for internal springs in many applications.
• Temperature Rating: -40° F to 275° F (-40° C to 135° C) in coolant hose applications.
• Meets SAE 20R4 and 20R3 Type EC Class D-1 and D-2 specifications.

Signs it is Time to Replace Your Coolant Hose(s)

Prevent system contamination and coolant leaks that could cause your engine to overheat by checking for these common signs of Coolant Hose damage / failure:

INTERNAL DAMAGE
Soft / mushy hose ends, usually about 2 inches from the clamp. Internally Damaged Hose

LEAKAGE
Moisture, drips or coolant bleed marks on or around the hose clamps, connectors or hose. Leaking Hose

HEAT DAMAGE
Slight swelling, or a hardened, glossy cover that is covered with cracks. Heat Damaged Hose

OZONE DAMAGE
Tiny, parallel cracks in the cover, usually at hose bends. Ozone Damaged Hose

ABRASION DAMAGE
Rubbing marks on, or damage to the hose cover. Abrasion Damaged Hose

OIL CONTAMINATION
Soft or spongy to the touch - bulges and swelling are readily apparent. Oil Contaminated Hose

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