You are purchasing one (1) OEM Yanmar Fuel Filter Element Part Number: 129053-55670 supercedes 5101555X19 & 119810-55670 Fits the following models (list is not exhaustive): Model Name 5900500 - IS2500Z Series w/ 52" Side Discharge Mower Deck & ROPS (IS2500ZY24D52) Yanmar (3TNM68 - 3TNM72) 5900781 - IS2500Z CE Series w/ 52" Rear Discharge Mower Deck & ROPS (IS2500Y2052RDCE) Yanmar (3TNM68 - 3TNM72) 5900783 - IS2500Z CE Series w/ 52" Side Discharge Mower Deck & ROPS (IS2500Y2052SDCE) Yanmar (3TNM68 - 3TNM72) 5900798 - IS2500Z Series w/ 52" Side Discharge Mower Deck & ROPS (IS2500ZY20D52) Yanmar (3TNM68 - 3TNM72) 5900799 - IS2500Z Series w/ 61" Side Discharge Mower Deck & ROPS (IS2500ZY24D61) Yanmar (3TNM68 - 3TNM72) 5900931 - IS2500Z CE Series w/ 61" Side Discharge Mower Deck & ROPS (IS2500ZY24D61CE) Yanmar (3TNM68 - 3TNM72) 5900932 - IS2500Z CE Series w/ 61" Rear Discharge Mower Deck & ROPS (IS2500ZY24D61RDCE) Yanmar (3TNM68 - 3TNM72) 5900943 - IS2500Z ANSI-EXP Series w/ 52" Side Discharge Mower Deck & ROPS (IS2500ZY20D52ANSIEXP) Yanmar (3TNM68 - 3TNM72) 5900949 - IS2500Z ANSI-EXP Series w/ 61" Side Discharge Mower Deck & ROPS (IS2500ZY24D61ANSIEXP) - Yanmar (3TNM68 - 3TNM72) 5900993 - IS2500Z CE Series w/ 52" Side Discharge Mower Deck & ROPS (IS2500ZY24D52CE) Yanmar (3TNM68 - 3TNM72)