A genuine Yanmar marine engine breather gasket, manufacturers part number 124411-03051
Fits:
4LH-DTZ
4LH-HT
4LH-HTZ
4LH-HTZAY
4LH-ST
4LH-STZ
4LH-UT
4LH-UTZ
4LH-UTZAY
4LH-WST
4LH-WSTZY
4LH-DTE
4LH-HTE
4LH-STE
4LH-TE
KM5A
6LYM-STE
6LYM-UTE
6LY-STE
6LY-UTE
4LHA-STE
4LHA-STZE
4LHA-DTE
4LHA-DTZE
4LHA-HTE
4LHA-HTZE
4LHA-STP
4LHA-STZP
4LHA-DTP
4LHA-DTZP
4LHA-HTP
4LHA-HTZP
4LHA-DTE(P)
4LHA-DTZE(P)
4LHA-HTE(P)
4LHA-HTZE(P)
4LHA-STE(P)
4LHA-STZE(P)
6LYM-UTEHD
6LY2A-STP
6LY2A-UTP
6LY2-STE