RT31037 HD Brake Booster Kit
InfoVehicle Info Needed
CROWN AUTOMOTIVEPART NUMBER: 077-RT31037

RT31037 HD Brake Booster Kit

$46999
ShippingShips on Sep 03, 2026
Lowest PriceLowest Price Guarantee

Heavy Duty Dual Diaphragm Brake Booster and 1-1/8" Bore Master Cylinder
  • Designed
  • For Aftermarket Axles
  • For 1987-2001 XJ Cherokee
  • MJ Comanche w/ or w/o ABS

    Crown Automotive RT31037 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

    • Fits Models With or 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 Height8.3
    Package Width13.3
    Package Length18.6
    Weight17.93 PG
    Part CategoryPerformance Parts
    Part FitmentDirect Fit
    Vendor Part NumberRT31037
    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!