Changing the oil in your Honda lawnmower is just as important as changing the oil in your vehicle. Regular oil changes help your lawnmower running more efficiently and also make it last longer. Refer to your owner's manual for recommendations of specific oil to use in your mower.
Honda NOS oil drain bolt part # 90132-896-700 & washer part # 90431-896-700 for HR17 walk behind lawn mowers. Parts are discontinued from Honda.
Amazon.com : Drainzit HON1010 10mm Oil Changing Aid for Honda GX110, GX120, GX160, GX200 : Lawn Mower Accessories : Garden & Outdoor.
Changing the oil in a Honda HR217 lawnmower is an important part of routine maintenance. The mower uses motor oil to lubricate internal engine components.