Square O-Ring Kit - 1.25

The Wilwood Square O-Ring Kit - 1.25 inch (Part No. 130-2479) is a precision seal component suitable for various brake and hydraulic systems, including both custom and standard vehicles. This kit is essential for maintaining reliable fluid containment in brake calipers, master cylinders, and proportioning valves, making it a versatile choice for both performance and everyday applications.

Square o-rings differ from round ones in their sealing geometry, which allows for better performance in square-cut grooves. This design reduces the risk of extrusion under high pressure and provides consistent clamping force across the seal face. The 1.25-inch sizing is particularly beneficial for larger-bore applications, ensuring effective sealing in demanding conditions.

Mechanics and fabricators involved in restoring or modifying brake systems will find this kit to be a valuable replacement and upgrade option. Its ability to withstand high temperatures, pressure spikes, and fluid degradation makes it ideal for a wide range of applications, from street rods to professional motorsports.