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