Dynamic Friction Company Brake Master Cylinder P/N:355-80004
Dynamic Friction 355-42027 brake master cylinder for the 1993-1994 Jeep Grand Cherokee and other vehicles turns pedal force into hydraulic pressure for the brakes. The pedal pushes on it, and it sends that pressure out to the brake lines.
A brake pedal that sinks or feels soft, brake fluid around the cylinder, or a brake warning light can mean a master cylinder is wearing out. These signs alone do not prove it is the problem, because a leaking caliper can also give a soft pedal. The 1992-1994 Jeep Cherokee takes one.
The vehicles this brake master cylinder fits include the 1993-1994 Jeep Grand Cherokee, the 1990-1994 Jeep Wrangler and the 1992-1994 Jeep Cherokee. Not seeing your Jeep here? Enter its year and model in the "Vehicles it fits" section to see if it is covered.
Fit and size
Build and materials
One brake master cylinder with its reservoir.
Is this the right brake master cylinder for a 1990-1994 Jeep Wrangler?
Yes. Dynamic Friction 355-42027 is listed for the 1990-1994 Jeep Wrangler, so it is a direct-fit brake master cylinder for that Jeep.
Does the Dynamic Friction 355-42027 master cylinder come with a reservoir?
Yes. The reservoir is included, so the listing is one brake master cylinder with its reservoir.
What is the bore size of this brake master cylinder?
The bore size is 1 inch.
My brake pedal slowly sinks to the floor; could the master cylinder be to blame?
It can be, since a worn master cylinder may not hold pressure. Have the brakes checked promptly, as a shop can test it and driving on weak brakes is unsafe.
How many brake master cylinders does a 1992-1994 Jeep Cherokee take?
One. Dynamic Friction 355-42027 is sold as a single brake master cylinder, and the 1992-1994 Jeep Cherokee takes one.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.