ARC Ring Gear Kit for GX390 6623 Flywheels.

Starter ring to convert recoil start 6623 flywheels to electric start.
Includes: Ring gear, spacers, and mounting bolts.

*Note: Only works on 6623's manufactured after 11/1/2017

Genuine Honda flywheel nut for GX240 to GX390 engines.

GX240 to GX390 Extended starter nut for handheld starters.

Genuine Honda GX390 rocker arm lock nut.

Part number: 90206-ZE1-000

Genuine Honda GX390 rocker arm pivot nut.

Part number: 14451-Z4M-000