AutoZone Product & HowTo Info | P | Hose (Bypass)

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    Hose (Bypass)

    Hose (Bypass) Operation:

    Preformed of molded rubber, this hose is usually the same size as a heater hose and gives the antifreeze solution an alternate flow path. This is necessary only until the engine has reached normal operating temperature and the thermostat has opened.

    How To Instructions:

    Replace - Out with the old, in with the new.

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