119574-18790 Yanmar Zinc Anode | Genuine OEM Marine Part

🔧 Product Description

Genuine Yanmar E-2 Intercooler / Air Cooler Zinc Anode Assembly - Part Number: 119574-18790

A genuine Yanmar anti-corrosion zinc anode assembly used principally in intercooler and air-cooler seawater circuits on 4LHA, 6LP/6LPA, 6LY and 8LV marine diesel engines. It sacrifices itself to protect cooler cores and housings from galvanic corrosion.

⚙️ Key Features

• Genuine Yanmar E-2 anti-corrosion zinc assembly
• Common long-form intercooler/air-cooler anode
• Approximate zinc diameter: 16 mm
• Replaceable zinc section uses an approximately 7/16 UNC internal connection on common service replacements
• Included as one anode within Yanmar zinc kit 119773-92600

🚤 Compatibility

Commonly used on

• Yanmar 4LHA-DTE, 4LHA-STE, 4LHA-DTZE, 4LHA-STZE, 4LHA-DTP, 4LHA-STP, 4LHA-DTZP and 4LHA-STZP
• Yanmar 6LP-DTE, 6LP-DTZE, 6LP-STE and 6LP-STZE
• Yanmar 6LPA-DTP, 6LPA-DTZP, 6LPA-STP and 6LPA-STZP families
• Yanmar 6LY and 6LY2 families except 6LY3
• Yanmar 8LV320, 8LV350 and 8LV370

Typically suits

• HP Range: Approximately 160-440 HP across verified Yanmar applications
• Engine / System Type: Turbocharged/intercooled four-, six- or eight-cylinder Yanmar marine diesel
• Year Range: Engine-family dependent
• Serial / Identification Range: Confirm the cooler diagram, anode location and whether the supplied genuine package contains the complete plug assembly or only the replaceable zinc element.

🔌 Function

Corrodes preferentially in the seawater circuit, protecting aluminium, copper-alloy and cast-metal cooler components from galvanic attack.

⚠️ Common Signs of Failure

• Zinc has eroded to roughly half its original mass
• Anode is heavily pitted, fractured or missing
• White corrosion products block the anode port
• Cooler shows galvanic pitting or internal seawater leakage
• Scheduled inspection or seasonal service interval has been reached

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 119574-18790 - current verified Yanmar anti-corrosion zinc reference
• 119773-92600 - related service kit containing one 119574-18790 and four 119574-44150 anodes

OEM / Related Numbers

• 119574-18790
• 119773-92600
• E-2

Aftermarket / Verified Equivalents

• Tecnoseal replacement for 119574-18790
• Cathodic Anodes Australasia: CDZ9-036 / CDZK9-800Y kit family
• Cummins: 68241 on corresponding anode assemblies
• Detroit Diesel / GM: 8517479 / 8517480 on corresponding replacement applications

📦 Condition

• Genuine Yanmar OEM marine anode, brand new.
• Brand new
• Supplied in manufacturer or equivalent protective packaging