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Gasket for #4 Steel Adapter - Mastercool

Part #: 43300-4G

The Mastercool 43300-4G Gasket is designed for use with the #4 Steel Adapter, a component of professional automotive and industrial pressure testing equipment. This replacement gasket is crucial for maintaining the integrity of cooling system pressure tests, ensuring accurate leak detection in various vehicle types and industrial applications. Crafted for durability and reliable sealing, it helps professional technicians and mechanics perform diagnostics with confidence and precision.

Key Features

  • Precision Fit: Engineered specifically for the Mastercool #4 Steel Adapter, ensuring a perfect seal and optimal performance during pressure testing.
  • Durable Construction: Manufactured to withstand the rigorous demands of professional automotive and industrial environments, providing long-lasting reliability.
  • Leak Prevention: Crucial for creating a tight, dependable seal, effectively preventing fluid or air leakage during diagnostic procedures.
  • Maintains System Pressure: Helps sustain accurate pressure readings in cooling systems, enabling precise identification of leaks or compromised components.
  • Essential Maintenance Component: An ideal replacement part to ensure your Mastercool pressure testing kit remains fully functional and accurate.

Applications

The Mastercool 43300-4G Gasket is primarily used by professional technicians and mechanics in automotive repair shops, industrial maintenance facilities, and other settings where cooling system pressure testing is performed. It is an integral component for diagnosing leaks in radiators, hoses, heater cores, and other parts of a vehicle's cooling system, as well as similar industrial fluid transfer systems. This gasket supports efficient and accurate testing for both domestic and import cars and trucks.

Only 1 left in stock - order soon

$2.96

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  • Mastercool
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    Mastercool Homepage
  • Model: 424325
  • Shipping Weight: 2lbs
  • Manufacturers Part #: 43300-4G
  • Manufactured by: Mastercool
  • Also Known As: MSC43300-4G, MSC-43300-4G

This product was added to our catalog on Wednesday 13 May, 2026.

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