https://www.cyclica.com/sq/p/ricambi/altri/caterpillar-fits-to-304.5-h45/h45-s-h50/h50-s-63/h63/h63-s-70/70-s/h70/h70-s-h90c/h90cs-100/h100/h100-s-hydraulic-hammers.-1688711u