Green Teeth Compatible Wheel w/ BearingsCompatibility Green Teeth Compatible Wheel w Bearings for following units: PK0803 Stump Grinder PK0803 EH Stump Grinder w Electric Start This is only compatible with POWERKING Stump Grinders. Description All Power King stump grinders sold after June 2019 have this included. This is also backwards compatible with older model Power King stump grinders or this can be used to replace bearings without having to press fit them on.