Vent Valve Brake Caliper. Porsche 911 / 912  ❭  91135191900

Vent Valve Brake Caliper. 
The OE MATCH Vent Valve Brake Caliper is a brake system component designed to allow the safe bleeding and venting of air from the brake caliper hydraulic circuit. This small but critical component ensures that the braking system can be properly serviced and maintained for optimal hydraulic performance.  
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Fits:

• Porsche 911 1969 2.0L / 912 SWB (F)
• Porsche 911 1968-1971 2.2L / 2.4L / 2.7L RS LWB (F)
• Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
• Porsche 911 1975-1977 3.0L Turbo (930)  

Diagram Ref No 24

Manufactured from quality corrosion-resistant metal, the vent valve (bleed screw) provides a secure seal during normal operation while allowing controlled release of air and brake fluid during brake bleeding procedures. Its precision-machined design ensures reliable sealing under the high hydraulic pressures generated within the braking system.

What This Product Does:

• Allows air to be removed from the brake hydraulic system.
• Facilitates brake bleeding and maintenance procedures.
• Ensures proper hydraulic pressure within the brake caliper.
• Helps maintain a firm and responsive brake pedal feel.
• Provides a secure seal during normal brake operation.
• Supports safe and efficient braking performance.
• Prevents hydraulic pressure loss when correctly installed.
• Forms an essential part of the brake caliper assembly.

Symptoms Of Wear Or Failure:

• Brake fluid leaks around the bleed valve.
• Soft or spongy brake pedal feel.
• Difficulty bleeding the braking system.
• Rounded, seized or damaged bleed screw head.
• Corrosion around the vent valve.
• Air repeatedly entering the hydraulic system.
• Reduced braking performance.
• Fluid seepage from the caliper.
• Inability to properly seal after servicing.
• Brake warning indications due to fluid loss.

Why Replacement Matters:

• Brake vent valves are exposed to moisture, road salt, dirt, heat cycles and repeated servicing throughout their lifespan. Over time, corrosion can cause the valve to seize, while damaged threads or sealing surfaces may allow brake fluid leaks or air ingress into the hydraulic system.
• A faulty vent valve can compromise the effectiveness of brake bleeding procedures, resulting in trapped air within the hydraulic circuit and a reduction in braking performance. Even minor fluid leaks can lead to pressure loss, reduced braking efficiency and increased safety risks.
• Replacing a worn or damaged vent valve restores proper sealing and ensures the braking system can be correctly maintained.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

91135191900

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