Brake Calipers

930-ERX Rear brake calipers.
1 pair, req'd per car.

We've re-engineered a 930 style caliper with specific enhancements for direct fitment to the 911. Our 930-ERX calipers are an updated version of the venerable 930 brakes which have long been the benchmark for performance.



Fits:
Porsche 911 / 912 1969-89
W/ 3" Caliper Bolt Spacing


The 930 Brake Upgrade

930 brakes have been an awesome upgrade for 911 cars in terms of thermal capacity and pedal feel. The four piston calipers and massive 32mm front / 28mm rear rotors give incredible stopping power.

In addition to excellent stopping power, they have a period correct retro race look, retain the parking brake functionality, and even fit under many 15 inch wheels. This is why 930 brakes have traditionally been the sought-after upgrade for 911 racecars, and high end/high powered street car builds.

However fitting them has traditionally been difficult – requiring custom machining (due to differences in 930/911 caliper bolt spacing), wheel clearance issues, and limited availability.

Our re-engineered 930-ERX type calipers keep everything that's great while fixing all the issues. And they accept readily-available 930 type pads, rotors, and master cylinders.

930-ERX Enhancements over Original 930 Calipers

✓ No caliper machining is required for 911 trailing arm fitment.

✓ Our rear calipers have the correct 3.0 inch bolt spacing and radial position to mount directly onto '69-'89 911/912 trailing arms.

✓ The front and rear caliper cooling fins are low profile such that they do not interfere with Fuchs wheel spokes without the need for wheel spacers.

✓ A modern staggered piston design is used for even pad wear on our 930-ERX calipers. Original 930 calipers used same size pistons, which caused pads to wear in a taper.



930-ERX Fitment and Compatibility

The front calipers have 3.5 inch bolt spacing and bolt directly to front struts as equipped on 911 and 912 cars from '72-'89 and 911 S models prior to '72. Early front struts that have 3.0 caliper bolt spacing can convert to 3.5 inch struts, contact us for details.

The rear calipers have 3.0 bolt spacing for direct fitment to 911 and 912 trailing arms from '69-'89 including aluminium and steel trailing arms.

Front and rear calipers accept standard 930 brake pads and standard 911 brake hoses.

Rear calipers use standard type 930 rotors part 930-352-046-01

Front calipers fit with regular 911 hubs and use early type 930 floating rotors with our hat kit #2190005 (floating) or #2190010 (fixed), or late 930 hubs with late 930 fixed rotors.

Use standard 930 master cylinder on '77-'89 911 cars equipped with brake booster, or our master cylinder kit #2190011 for pre-77 cars with non-boosted brakes.

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Hexagon nut for rear disc brake.



Fits:
Porsche 911 1965-77

Click 'Zoom in' for large parts diagram.
Diagram ref no 13

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Pan-head bolt for caliper..
Fitted with NON-VENTILATED brake disc.



Fits:
Porsche 912 / 911T 1965-69

Click 'Zoom in' for large parts diagram.
Diagram ref no 12

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Fits:
Porsche 356B
Porsche 911 - 1965 to 1989
Porsche 964 - 1989 to 1994
Porsche 993 - 1994 to 1998
Porsche 944 - 1982 to 1989
Porsche 928 - 1978 to 1990

Click 'Zoom in' for large parts diagram.
Diagram ref no 15

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Vent Valve Brake Caliper. 
The Porsche Vent Valve Brake Caliper is a genuine brake system component designed to allow the safe bleeding and venting of air from the brake caliper hydraulic circuit. Engineered to Porsche's exact specifications for fit, sealing performance and durability, this small but critical component ensures that the braking system can be properly serviced and maintained for optimal hydraulic performance.  
Sold Each.
x4 Required Per Car.

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 high-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. A genuine Porsche replacement provides factory-correct fitment, dependable sealing performance and long-term durability, helping preserve the safety, reliability and braking performance expected from your Porsche.

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91135191900

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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.  
Sold Each.
x4 Required Per Car.

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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