Radiator Cap 20Y-03-22110 For Komatsu PC200-6S PC200-7 PC450-8

When it comes to radiator caps, the materials used are important for ensuring durability, heat resistance, and proper sealing.

Common materials for radiator caps include:

 These materials are often used for their strength and heat resistance. Metal caps can withstand high temperatures and pressures, making them a reliable choice.

Some radiator caps are made from high-quality, heat-resistant plastics. While they are lighter and can be more cost-effective, they may not be as durable as metal caps under extreme conditions.

Regardless of the main material, many radiator caps incorporate rubber or silicone seals to ensure a tight fit and prevent leaks. These materials are essential for maintaining pressure within the cooling system.

In general, a metal radiator cap is often considered the best option for durability and performance, but high-quality plastic caps can also be effective if designed properly. Always ensure that the radiator cap you choose is compatible with your vehicle’s specifications.

The shape of a radiator cap is designed to fit securely onto the radiator neck and to create a proper seal to maintain pressure within the cooling system. Here are some common characteristics of radiator cap shapes:

Circular Shape: Most radiator caps are circular, allowing them to fit snugly onto the radiator neck. This shape helps distribute pressure evenly.

Dome or Flat Top: Some radiator caps have a dome-shaped top, which can help with pressure release. Others may have a flat top, depending on the design of the vehicle’s cooling system.

Notched or Grooved Edges: Many radiator caps feature notches or grooves around the edges to provide a better grip for easy installation and removal.

Size Variations: Radiator caps come in various sizes to fit different radiator necks, so it’s important to choose one that matches the specifications of your vehicle.