RT31017 HD Brake Booster Kit
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CROWN AUTOMOTIVEPART NUMBER: 077-RT31017

RT31017 HD Brake Booster Kit

$47999
ShippingShips on 09/09/2026
Lowest PriceLowest Price Guarantee

Heavy Duty Dual Diaphragm Brake Booster with 1⅛" Bore Master Cylinder
  • For 1987-1990 Jeep YJ Wrangler w/o ABS
  • Designed
  • For Aftermarket Axles

    Crown Automotive RT31017 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

    • For Models Without ABS
    • HD 8" Dual Diaphragm Booster
    • 1-1/8" Bore Master Cylinder
    • 1-1/8" Bore Master Cylinder
    • Designed for Aftermarket Axles
    • 12-Month Warranty
    • GrayZinc
    • MetalRubber
  • Part TypePower Brake Booster with Brake Master Cylinder
    BrandCROWN AUTOMOTIVE
    Package Height9.0
    Package Width11.5
    Package Length19.0
    Weight18.965 PG
    Part CategoryPerformance Parts
    Part FitmentDirect Fit
    Vendor Part NumberRT31017
    Package Qty1
    Package TypeEA
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    Some parts are not legal for use in California or other states with similar laws / regulations
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