Condition: Used Used, original kawasaki invader 440 piston and rings. Used on all 1978-81 440 invaders. This piston assembly may also be used on the 80-84 john deere liquifire(with the kawasaki engine). This is an ART piston made in japan. Skirt has minimal wear. No gouges. Comes with wrist pin, bearing and clips and rings. See photos. For contact info: torysvintagesleds d o t c o m. 207-701-7494.