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740t 3/8 coolant hose 700 1986

posted by  RobertF on  Mon Apr 4 15:58 CST 2005
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Today I replaced a 3/8 coolant hose (near the turbo to the other side of the engine) with one purchased from a local auto parts store. Once home I noticed a difference in the SAE notations. The new one is SAE 30R6KX and the one I replaced is SAE 30R7KX. My receipt said it was a fuel hose but it is for hot coolant. How important is this difference? Thank you.








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740t 3/8 coolant hose 700 1986

posted by  RobertF on  Fri Apr 8 07:18 CST 2005
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Although no one has replied to my request for help, I have more information. I spoke to an engineer at Goodyear Rubber. When explaining the SAE values he stated that the SAE 30R7KX could perform adequately with coolant. He did report the availability of a 3/8 hose made for the coolant that was not available the year the car was manufactured. The specification for the 3/8 coolant hose is SAE 20R3.







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