Standard Kubota V3307 piston and rings. 

Replaces Part #'s 1G774-21120, 1G774-21120, 1G774-21130, 1G772-21050

94MM diameter

Kubota dealers want over $299.00 for this

Should be purchased in sets of 4 to assure even weight between pistons

Contact us for complete overhaul kits