19300-ZW9-003 Thermostat Assembly – Overview

The 19300-ZW9-003 Thermostat Assembly is an essential component in Honda marine engine cooling systems. It plays a critical role in regulating the coolant flow and maintaining the engine at its optimal operating temperature. By ensuring the engine neither overheats nor runs too cold, this thermostat assembly supports reliable performance and extends the lifespan of your marine engine. Designed as a genuine OEM part, it ensures seamless integration with existing parts, maintaining optimal performance and durability.

Key Features

• This thermostat assembly regulates coolant flow with a temperature rating of 60°C (140°F).
• It is an exact OEM replacement part designed specifically for Honda marine engines.
• Maintains consistent and efficient engine cooling, preventing overheating and optimizing operational performance.
• Manufactured to match factory specifications, dimensions, and tolerances for a perfect fit.
• Integrates cleanly with the engine’s cooling system hardware, seals, and housings.
• Ensures expected durability and reliability identical to factory-installed components.

Why Choose Genuine OEM

Using original Honda parts like the 19300-ZW9-003 Thermostat Assembly preserves the integrity of your marine engine. OEM parts maintain the exact material quality, precision dimensions, and tolerances set by the manufacturer, which are crucial for preserving system reliability and performance. Genuine parts reduce the chance of unexpected failures, ensure proper fitment with adjacent components, and maintain consistent engine operation. Purchasing through a trusted supplier also guarantees you receive authentic parts and expert customer support.

Why choose PartsVu?

PartsVu is dedicated to the boating community, offering genuine Honda marine engine parts sourced directly from the manufacturer. Founded by boaters for boaters, PartsVu makes maintaining, repairing, and upgrading your boat straightforward with comprehensive OEM parts catalogs and user-friendly Shop By Engine functionality. Along with expert customer service, fast shipping, and no price guessing, PartsVu provides detailed knowledge resources and guides to support your boating lifestyle. Whether you need parts for Honda, Yamaha, Mercury, or Suzuki outboards, PartsVu is your trusted marine parts and outboards superstore.

• Engine Application
  Honda

  • 8hp 2001 and later
  • 9.9 hp 2001 and later
  • 15hp 2003 and later
  • 20hp 2003 and later