19300-ZY3-023 Honda Marine Thermostat | Genuine OEM Outboard Part

🔧 Product Description

Genuine Honda Marine 60°C Thermostat Assembly - Part Number: 19300-ZY3-023

A genuine Honda 60°C thermostat used in selected inline-four and V6 outboards from BF115 through BF225. Many of these engines use more than one thermostat with different part numbers, so the installation position must be confirmed.

⚙️ Key Features

• Factory 60°C calibration
• Suitable for inline-four and V6 Honda cooling circuits
• Wax-element temperature control
• Direct OEM replacement
• Position-specific on engines using dual thermostats

🚤 Compatibility

Commonly used on

• Honda Marine four-stroke outboard cooling-system applications

Typically suits

• Engine models:
• BF115A2/A3, BF115D and BF115DK1
• BF130A2 and BF130A3
• BF135A4/AK2 and BF150A4/AK2
• BF175A3/A6/AK1/AK2/AK3
• BF200A2/A3/A6/AK1/AK2/AK3
• BF225A2/A3/A6/AK1/AK2/AK3
• HP Range: 115HP-225HP
• Engine Type: Inline four-cylinder or V6 four-stroke outboard
• Year Range: Approximately 2001-2012, model dependent

🔌 Function

Opens near 60°C to regulate flow through the assigned cylinder-head, block or exhaust cooling circuit.

⚠️ Common Signs of Failure

• One cylinder bank runs hotter than the other
• Overheat alarm under load
• Engine remains below normal temperature
• Salt or corrosion holds the valve open or closed
• Poor warm-up and increased fuel consumption

🔄 Supersession & Cross Reference

OEM Supersession Chain

• No supersession; current Honda OEM reference

OEM / Related Numbers

• Honda: 19300-ZY3-023

Aftermarket / Verified Equivalents

• Recmar: REC6AH-12411-00
• Aftermarket reference: WA 6G8-12411-01

📦 Condition

• Genuine Honda Marine OEM part
• Brand new
• Supplied in original or equivalent packaging