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944S Brake Master Cylinder


I am slowly leaking brake fluid between my brake master cylinder and my brake booster. 

I went to buy a new master cylinder but it looks like none are available. The 924S master cylinder is available, looks the same, has a 944 part number, has a different price, but is available. Does anyone know if the 924S and 944S had interchangeable brake master cylinders?



Brake Caliper Rebuilding

Hello all,

I'm looking to have my rear brake calipers rebuilt. I'm sure it's never been done. I have the pads out and I can see at least one dust seal ripped.

I live in Monson, Ma.

Does any know of a good reputable shop the rebuilds calipers?




1989 944S2 Relay Location

Yes, where is the ABS Relay location on a Porsche 944s2?  Part No is 928-618-931-01

squeaky 951 brake

Hey guys. I have a 1986 951 and my brakes sound terrible. They are very squeaky kinda imbarasing. I have newer pagid orange brake pads with slotted rotors. When the brakes are cold they don't squeak. I tried sanding them down, and putting disc brake quiet lubricious on and it only helped for a couple times. 


Rear calipers for 1987 944

Having problem finding anyone who has rear calipers for 1987 944, in stock.  Any contacts would be appreciated.


Brake caliper piston . . .

Can someone provide a source in which I can buy a front brake caliper piston. My right front brake is sticking. I replaced the brakes due to the right front brake pad being down to the metal while the left front brake was almost used. I replaced the pads and put grease on the caliper slides but the right pads were still sticking. I took the right caliper off again and disassembled it. I removed the piston and cleaned off the crud and filed it and the cylinder down. It moved freely, so I replaced the seals and removed the old brake fluid, pouring in new Dot 4 fluid.

ABS Light on full time

Model: 968, Year:1993, Mileage:130000, Type of use:Both Street & Track
Just before I put my 968 up for the winter the ABS light came on and the speedometer quit working. I have inspected the wheel speed sensors and could find nothing obvious. When I start the car the ABS light is on and does not clear. What would be your recommended trouble shooting path?I reviewed the past questions on ABS issues and did not find any useful information. I do not have access to the Bosch tester or the test plan.

Intermittent ABS alarm

Model: 951, Year:1989, Mileage:50,000, Type of use:Street use only


Model: 944S, Year:1987, Mileage:147100, Type of use:Street use only

Rear Brake Rotor Corrosion

Model: 968, Year:1995, Mileage:115000, Type of use:Street use only


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