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Keep Your Caliper Bleed Ports Sealed and Thread-Ready
The Wilwood WIL220-7496 is a 1/4-28 threaded bleed screw in black finish, designed as a direct replacement or spare for Wilwood performance brake calipers. This WIL220-7496 bleed screw seals the caliper bleed port after bleeding to prevent air ingestion and fluid leakage during street and track use. Wilwood's bleed screws are precision machined for consistent thread engagement and a leak-free seal. They are an essential consumable for any performance brake service, and keeping spares on hand ensures you can complete a brake bleed quickly without waiting on parts. This is a universal caliper accessory with 1/4-28 thread pitch to fit a broad range of Wilwood performance calipers.
Key Features
- 1/4-28 thread pitch for compatibility with a wide range of Wilwood performance calipers
- Black finish for clean appearance in performance brake applications
- Precision machined for consistent thread engagement and leak-free sealing
- Essential replacement or spare for any performance brake service
- Genuine Wilwood replacement part
- Sold individually
Specifications
| Detail | Value |
|---|---|
| Part Number | WIL220-7496 |
| SKU | WIL220-7496 |
| UPC | 889545050998 |
| Thread Size | 1/4-28 |
| Finish | Black |
| Fitment | Universal Wilwood Caliper Accessory |
| Quantity | 1 Bleed Screw |
What's Included
- 1 x Wilwood WIL220-7496 1/4-28 black bleed screw
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About Wilwood
Wilwood Engineering has been a leading manufacturer of high-performance brake components in Camarillo, California since 1977. Every Wilwood caliper, rotor, and brake accessory is designed and manufactured in the USA to meet the demands of street performance, road racing, and off-road competition. Wilwood's replacement hardware and consumables are engineered to the same standards as their OEM brake systems.
Frequently Asked Questions
What is the Wilwood WIL220-7496?The Wilwood WIL220-7496 is a 1/4-28 threaded bleed screw in black finish, used to seal the bleed port on Wilwood performance brake calipers after a brake bleed service. It is a genuine Wilwood replacement part sold individually.
What calipers does the WIL220-7496 fit?The WIL220-7496 uses a 1/4-28 thread pitch, which is compatible with a broad range of Wilwood performance calipers. Confirm your caliper's bleed port thread specification against 1/4-28 before ordering. Wilwood publishes caliper thread specs in their technical documentation or customer service line at 805-388-1188.
Does this bleed screw come with a copper washer or seal?The WIL220-7496 is a bleed screw only. A sealing washer or fitting may be required depending on your caliper model. Consult your caliper's service documentation or contact Wilwood for the correct sealing hardware if needed.
Can I use this on calipers other than Wilwood?Possibly, if the other caliper uses a 1/4-28 bleed port thread. However, this is a genuine Wilwood replacement part and is engineered specifically to Wilwood caliper tolerances. Always verify thread compatibility before installation on non-Wilwood calipers.
How often should bleed screws be replaced?Bleed screws should be inspected for thread damage, corrosion, or a compromised seal during every brake bleed. Replace immediately if the screw shows signs of cross-threading, rounded hex, or failure to seal. Keeping a spare on hand is recommended for trackday use.
Is this the correct bleed screw for my Wilwood big brake kit?The WIL220-7496 is a 1/4-28 bleed screw. If your big brake kit uses a different thread pitch, this screw will not fit. Refer to your kit's parts list or Wilwood's caliper specifications to confirm the correct bleed screw thread before ordering.
Why is my bleed screw leaking?A leaking bleed screw is usually caused by a compromised seat, cross-threading, or a missing or deteriorated sealing washer. Replace the WIL220-7496 bleed screw, inspect the caliper bleed port for thread damage, and use the correct sealing hardware before retorquing to Wilwood's specified torque value.
Where is this product made?Wilwood manufactures its components in Camarillo, California, USA. All Wilwood replacement hardware is machined to the same precision tolerances as the components shipped with new Wilwood brake systems.
Installation Instructions
- Ensure the vehicle is on a flat surface with the brake system cool before servicing.
- Remove the old or damaged bleed screw by turning counterclockwise with the appropriate wrench.
- Inspect the caliper bleed port for thread damage or debris. Clean as needed.
- Install the WIL220-7496 bleed screw by hand first to confirm thread engagement without cross-threading.
- Torque to Wilwood's recommended specification for 1/4-28 bleed screws.
- If bleeding brakes, attach a bleed hose, open the screw, and bleed until the fluid runs clear and bubble-free. Tighten the screw before releasing the brake pedal.
- Inspect for leaks after completing the bleed and before returning the vehicle to service.
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