Honda OEM 19200-MG9-681 water pump for 1975 to 1987 does not include any o-rings or seals. Honda warranty for this pump is 6 months.
DISCLAIMER: Caution. Use of ANY type of liquid, spray, gel lubricant, cleaner or solvent to install may damage internal seals and external O-rings resulting in possible premature pump failure. Use of any of the foregoing may void any replacement claim.
Honda Tech informed us that when they get a water pump back from DIY install customer, they find the smaller o-ring is missing where it goes into the the bike with the little drive. Also, the metal washers on the 4 bolts that attaches onto the bike were not replaced. If washers are not new, it will leak either oil or coolant.
Water Pump+Transmission+Oil Filter Honda fiche: https://tinyurl.com/f7npbxcx
CAN A LEAKING WATER PUMP BE REPAIRED?
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