RT31010 HD Brake Booster Kit
InfoVehicle Info Needed
CROWN AUTOMOTIVEPART NUMBER: 077-RT31010

RT31010 HD Brake Booster Kit

$48199
6 left in stock
ShippingShips on Sep 08, 2026
Lowest PriceLowest Price Guarantee

Heavy Duty Dual Diaphragm Brake Booster
  • For Jeep 1976-1986 CJ-5
  • CJ-7
  • CJ-8 and 1991-1995 YJ Wrangler w/o ABS
  • w/ 1-1/8" Bore Master Cylinder
  • Designed
  • For Aftermarket Axles

    Crown Automotive RT31010 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

    • Work on all available models
    • 1-1/8" Master Cylinder bore
    • Includes mounting bracket and adjustable push rod assembly
    • Includes mounting bracket and adjustable push rod assembly
    • Direct Replacement
    • Includes installation instructions
    • GrayZinc
    • MetalRubber
  • Part TypePower Brake Booster with Brake Master Cylinder
    BrandCROWN AUTOMOTIVE
    Package Height8.25
    Package Width13.25
    Package Length18.25
    Weight19.6 PG
    Part CategoryPerformance Parts
    Part FitmentDirect Fit
    Vendor Part NumberRT31010
    Package Qty1
    Package TypeEA
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