Use it for parts or for trying to fix it if doesn't really work, which is the most likely reason why the mower didn't start.
Start Key Assy for RYOBI RY401021 40V 21" Walk Behind Self-Propelled AWD Mower
PARTS for RYOBI RY401014US 40V 21" Walk Behind Self-Propelled Mower
BLADE Mounting HARDWARE FOR RYOBI RY401014US 40V 21" Self-Propelled Mower
AR2100 21inch Lawn Striping Kit for EGO 21" Walk Behind Push Mower, Lawn Striper Compatiabl with EGO 21" Mowers
Parts for Ryobi 20 in. 40V RY401018 /17 Cordless Lawn Mower Choose
Parts for Ryobi 20 in. 40V RY401026 Cordless Lawn Mower Choose Self propelled
