Anode, Zinc Heat Exchanger Zinc anode for Marine Power heat exchangers, Yanmar marine diesel engines models: -4LHA-HTE – 4LHA-HTP, 4LHA-DTE – 4LHA-STE, 4LHA, DTZE – 4LHA-STZE, 4LHA-DTP – 4LHA-STP, 4LHA-DTZP – 4LHA-STZP, 6LP-DTE – 6LP-DTZE, 6LPA-DTP – 6LPA-DTZP 6LP-STE – 6LP-STZE 6LPA-STP – 6LPA-STZP.