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RT Off-Road Power Brake Booster Conversion Kits for 1987-1990 WRANGLER - RT31018 Master Cylinder and Assembly, Conversion, Jeep, Kit

RT Off-Road Power Brake Booster Conversion Kits for 1987-1990 WRANGLER - RT31018 Master Cylinder and Assembly, Conversion, Jeep, Kit

A$1,488.57
Special Order. Contact for ETA. This item is out of stock in our warehouse and partner distribution centres. In some cases, this may be due to not having live inventory feeds available for all suppliers. Please contact us before ordering if you need to meet a specific deadline.
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Description

When it comes to the braking system on your vehicle, especially an adventurous Jeep—don't mess around! Replace that faulty or outdated master cylinder with one of the power brake booster conversion kits from RT Off-Road. These performance-level kits cater to the vehicle's specific requirements. The larger bore master cylinders are designed for upgrades done to the vehicle axles with larger brake calipers. The more moderate bore is designed for vehicles with factory brakes, disc brakes upgrades, and vehicles that require more braking power. Each application includes a zinc coated brake booster, master cylinder, bench bleeding kit, and installation instructions.

Part Type

Master Cylinder and Brake Booster Assemblies

Data: v4.2 - Upd: 2026-09-30 13:58:13

Specifications

Product Attributes - Brand
RT Off-Road
Product Attributes - Manufacturer's Part Number
RT31018
Product Attributes - Part Type
Master Cylinder and Brake Booster Assemblies
Product Attributes - Product Line
RT Off-Road Power Brake Booster Conversion Kits
Product Attributes - UPC
849603011569
Product Attributes - Master Cylinder Bore Size
1.000 in.
Product Attributes - Bowl Design
Dual
Product Attributes - Master Cylinder Material
Iron
Product Attributes - Master Cylinder Finish
Natural
Product Attributes - Reservoir Included
Yes
Product Attributes - Reservoir Material
Iron
Product Attributes - Proportioning Valve Included
No
Product Attributes - Master Cylinder Cap Included
Yes
Product Attributes - Brake Booster Type
Vacuum dual diaphragm
Product Attributes - Brake Booster Diameter (in.)
8.25 in.
Product Attributes - Brake Booster Material
Steel
Product Attributes - Brake Booster Color
Gold
Product Attributes - Brake Pedal Rod Extension Included
Yes
Product Attributes - Mounting Location
Stock
Product Attributes - Mounting Hardware Included
Yes
Product Attributes - Remanufactured
No
Product Attributes - Quantity
Sold as a kit.
Product Attributes - Notes
Engine vacuum must be 18 in. or greater at idle while engine is warm to function properly.

Reference Information

Brand Name/s RT Off-road
StreetFX SKU rtoRT31018
SFX Item ID 6409320
Supplier Item Code 6409320
Manufacturer SKU RT31018
Manufacturer UPC 849603011569

Compatibility

Application Data
  • UniversalNo
    MakeJEEP
    ModelWRANGLER
    SubmodelBASE
    Beginning Year1987
    Ending Year1990
    Engine TypeL4
    Engine FamilyAMC 4-cylinder
    Engine Size2.5L/150
    Front Brake TypeDisc
    Rear Brake TypeDrum
  • UniversalNo
    MakeJEEP
    ModelWRANGLER
    SubmodelBASE
    Beginning Year1987
    Ending Year1990
    Engine TypeL6
    Engine FamilyAMC L6 GAS
    Engine Size4.2L/258
    Front Brake TypeDisc
    Rear Brake TypeDrum
  • UniversalNo
    MakeJEEP
    ModelWRANGLER
    SubmodelISLANDER
    Beginning Year1988
    Ending Year1990
    Engine TypeL6
    Engine FamilyAMC L6 GAS
    Engine Size4.2L/258
    Front Brake TypeDisc
    Rear Brake TypeDrum
  • UniversalNo
    MakeJEEP
    ModelWRANGLER
    SubmodelISLANDER
    Beginning Year1989
    Ending Year1990
    Engine TypeL4
    Engine FamilyAMC 4-cylinder
    Engine Size2.5L/150
    Front Brake TypeDisc
    Rear Brake TypeDrum
  • UniversalNo
    MakeJEEP
    ModelWRANGLER
    SubmodelLAREDO
    Beginning Year1987
    Ending Year1988
    Engine TypeL4
    Engine FamilyAMC 4-cylinder
    Engine Size2.5L/150
    Front Brake TypeDisc
    Rear Brake TypeDrum
  • UniversalNo
    MakeJEEP
    ModelWRANGLER
    SubmodelLAREDO
    Beginning Year1987
    Ending Year1990
    Engine TypeL6
    Engine FamilyAMC L6 GAS
    Engine Size4.2L/258
    Front Brake TypeDisc
    Rear Brake TypeDrum
  • UniversalNo
    MakeJEEP
    ModelWRANGLER
    SubmodelS
    Beginning Year1988
    Ending Year1988
    Engine TypeL4
    Engine FamilyAMC 4-cylinder
    Engine Size2.5L/150
    Front Brake TypeDisc
    Rear Brake TypeDrum
  • UniversalNo
    MakeJEEP
    ModelWRANGLER
    SubmodelS
    Beginning Year1988
    Ending Year1988
    Engine TypeL6
    Engine FamilyAMC L6 GAS
    Engine Size4.2L/258
    Front Brake TypeDisc
    Rear Brake TypeDrum
  • UniversalNo
    MakeJEEP
    ModelWRANGLER
    SubmodelSAHARA
    Beginning Year1988
    Ending Year1990
    Engine TypeL4
    Engine FamilyAMC 4-cylinder
    Engine Size2.5L/150
    Front Brake TypeDisc
    Rear Brake TypeDrum
  • UniversalNo
    MakeJEEP
    ModelWRANGLER
    SubmodelSAHARA
    Beginning Year1988
    Ending Year1990
    Engine TypeL6
    Engine FamilyAMC L6 GAS
    Engine Size4.2L/258
    Front Brake TypeDisc
    Rear Brake TypeDrum
  • UniversalNo
    MakeJEEP
    ModelWRANGLER
    SubmodelSPORT
    Beginning Year1987
    Ending Year1988
    Engine TypeL4
    Engine FamilyAMC 4-cylinder
    Engine Size2.5L/150
    Front Brake TypeDisc
    Rear Brake TypeDrum
  • UniversalNo
    MakeJEEP
    ModelWRANGLER
    SubmodelSPORT
    Beginning Year1987
    Ending Year1988
    Engine TypeL6
    Engine FamilyAMC L6 GAS
    Engine Size4.2L/258
    Front Brake TypeDisc
    Rear Brake TypeDrum

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