RT31011 HD Brake Booster Kit
InfoVehicle Info Needed
CROWN AUTOMOTIVEPART NUMBER: 077-RT31011

RT31011 HD Brake Booster Kit

$54699
ShippingShips on 09/08/2026
Lowest PriceLowest Price Guarantee

Heavy Duty Dual Diaphragm Brake Booster with 1" Bore Master Cylinder
  • For 1976-1983 CJ-5
  • 1976-1986 CJ-7
  • 1981-1986 CJ-8
  • 1991-1995 YJ Wrangler w/o ABS
  • Designed
  • For Stock Applications

    Crown Automotive RT31011 Features:

    Replace your rusty, leaky, and faulty brake booster & master cylinder with a HD kit from RT Off-Road. Two performance level kits were designed to specifically cater to the vehicles 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 & master cylinder

    • 1" Diameter Master Cylinder
    • Designed for Stock Front Brakes and Rear Drum or Disc Brake Conversion
    • No Drilling Required
    • No Drilling Required
    • Direct Replacement
    • 12-Month Warranty
    • GrayZinc
    • MetalRubber
  • Part TypeSee Note
    BrandCROWN AUTOMOTIVE
    Package Height8.5
    Package Width13.25
    Package Length18.0
    Weight18.6 PG
    Part CategoryPerformance Parts
    Part FitmentDirect Fit
    Vendor Part NumberRT31011
    Package Qty1
    Package TypeEA
    No Questions
    No Reviews
    Some parts are not legal for use in California or other states with similar laws / regulations
    p65 warning
    Your Cart

    Your shopping cart is empty!