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Keep Your Calipers Sealed Tight With Genuine Wilwood Rings
Worn piston seals lead to fluid leaks and sluggish piston travel that rob your brakes of consistent bite. This Wilwood O-ring kit supplies the square-ring seals needed to service calipers built around 1.62in and 1.12in diameter pistons, restoring a tight seal so your calipers move freely and hold fluid pressure the way they should.
Key Features
- Set of 6 square-ring seals sized for 1.62in and 1.12in diameter caliper pistons
- Kit includes 2 rings sized for 1.62in pistons and 4 rings sized for 1.12in pistons
- Molded from durable 210M rubber for long service life
- Compatible with DOT 3, DOT 4, and DOT 5 brake fluids
- Genuine Wilwood replacement part for routine caliper maintenance
Specifications
| Detail | Value |
|---|---|
| Manufacturer Part Number | 130-5972 |
| Brand | Wilwood |
| Seal Type | Square-Ring |
| Material | 210M Rubber |
| Piston Sizes Covered | 1.62in and 1.12in |
| Pack Quantity | 6 rings (2 x 1.62in, 4 x 1.12in) |
| Compatible Fluids | DOT 3, DOT 4, DOT 5 |
| UPC | Not published by manufacturer |
What's Included
- 2 square-ring seals sized for 1.62in pistons
- 4 square-ring seals sized for 1.12in pistons
About Wilwood
Wilwood Engineering designs and manufactures brake systems and service components for street, off-road, and racing applications. Its caliper rebuild seals are molded to precise tolerances so every kit restores factory sealing performance on genuine Wilwood calipers.
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FAQ
What is the 130-5972?The 130-5972 is a Wilwood caliper rebuild kit with 6 square-ring seals sized for 1.62in and 1.12in diameter pistons, used for routine caliper maintenance.
Which calipers use this seal kit?This kit fits Wilwood calipers built with 1.62in and 1.12in diameter pistons.
How many seals are in the kit?The kit includes 6 total seals: 2 sized for 1.62in pistons and 4 sized for 1.12in pistons.
What material are the seals made from?The seals are molded from 210M rubber for durability and long service life.
Are these seals compatible with my brake fluid?Yes, these seals are compatible with DOT 3, DOT 4, and DOT 5 brake fluids.
How often should caliper seals be replaced?Wilwood recommends servicing caliper seals on a regular maintenance schedule to prevent fluid leakage and keep pistons moving freely.
Will this kit fit calipers from other brands?No, this seal kit is designed specifically for genuine Wilwood calipers with matching piston sizes.
Do I need any special tools to install these seals?Basic hand tools and a clean workspace are typically sufficient, along with care to avoid nicking the new seals during installation.
Install Instructions
- Remove the caliper from the vehicle and drain any remaining brake fluid.
- Disassemble the caliper and remove the pistons from their bores.
- Remove and discard the old square-ring seals from each bore.
- Clean the caliper bores and pistons thoroughly before installing new seals.
- Install the correctly sized new square-ring seal into each bore, matching 1.62in and 1.12in positions.
- Reassemble the caliper, reinstall it on the vehicle, and bleed the brake system.
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