Honda OEM water pump, 19200-MN5-040, for 1988 to 1991 GL1500 does not include any o-rings or seals.

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.