Heavy-Duty Dual Diaphragm Brake Booster & High Pressure Master Cylinder Kits

1987-1995 YJ Wrangler

Replace rusty, leaky, and faulty Brake Boosters and Master Cylinders with a HD kit from RT Off-Road. Two performance level kits were designed to specifically cater to the vehicle’s requirements. The larger bore Master Cylinders are designed for upgrades done to axles with larger brake calipers. The more moderate bore is designed for vehicles with factory brakes, disc brake upgrades, and vehicles that require more braking power. Each kit consists of a zinc-coated Brake Booster, Master Cylinder, bench bleeding kit, and installation instructions. Installation involves replacing the factory Brake Booster and Master Cylinder.

•Includes mounting bracket and adjustable push rod assembly where needed
•Includes installation instructions RT31017

YJ heavy-duty dual diaphragm brake booster & high pressure master cylinder kits parts.

Each part number searches Amazon for that Crown part.

YearDescriptionPart No.
  Aftermarket Axles; with 1-1/8” Bore MC; Without ABS RT31017
87–90 Stock Applications; with 1” Bore MC; Without ABS RT31018
91–95 Aftermarket Axles; with 1-1/8” Bore MC; Without ABS RT31010
91–95 Stock Applications; with 1” Bore MC; Without ABS RT31011