Street. Track. Everything between.
07 3276 7829
Your garage Find parts for your vehicle Select year, make and model to narrow your search.

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.

Added to cart

We accept
American Express
Mastercard
Visa
PayPal Checkout
Direct Deposit
Afterpay
Apple Pay
Google Pay
Zip Pay

Description


Data: v2 - Desc: v4.2 - Upd: 2026-11-08 19:54:50

Data: v4.2 - Upd: 2026-11-08 20:37:28

Features

Note for Australian and European Markets

Unless otherwise stated, this product may be engineered for use in Left-Hand Drive vehicles. Steering components, pedals, shifters, linkages, wing mirrors, instrument clusters, panhard rods/traction bars, drag links, brake boosters, brake or clutch lines, accelerator cables, heater cores, some master cylinders and adjacent parts can vary between LHD and RHD configurations. In some models compenents such as windscreen wiper arms, motors and linkages could differ in their size and orientation. Items such as floor mats & dash mats may have differences in their structure around the front row (or padding in different locations). In many cases items are identical depending on the design of the vehicle and part, but may have differing mounts, lengths or bolt patterns. Carefully review the product images and details to ensure suitability for your vehicle, or contact StreetFX support if you are unsure. Returns are not accepted for special order products.

(keyword: master cylinder)

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Specifications

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s RT Off-road, RT Offroad
StreetFX SKU rtoRT31018
SFX Item ID 6409320
Accounting SKU rto-RT31018
Manufacturer SKU RT31018
Manufacturer UPC 849603011569
Alternative References RT31018, RTO-RT31018

Master Cylinder and Brake Booster Assembly, Power Brake Booster Conversion, Jeep, Kit

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.

Product Attributes
BrandRT Off-Road
Manufacturer's Part NumberRT31018
Part TypeMaster Cylinder and Brake Booster Assemblies
Product LineRT Off-Road Power Brake Booster Conversion Kits
UPC849603011569
Master Cylinder Bore Size1.000 in.
Bowl DesignDual
Master Cylinder MaterialIron
Master Cylinder FinishNatural
Reservoir IncludedYes
Reservoir MaterialIron
Proportioning Valve IncludedNo
Master Cylinder Cap IncludedYes
Brake Booster TypeVacuum dual diaphragm
Brake Booster Diameter (in.)8.25 in.
Brake Booster MaterialSteel
Brake Booster ColorGold
Brake Pedal Rod Extension IncludedYes
Mounting LocationStock
Mounting Hardware IncludedYes
RemanufacturedNo
QuantitySold as a kit.
NotesEngine vacuum must be 18 in. or greater at idle while engine is warm to function properly.

Compatibility

Loading compatibility information...

Keep shopping

More from RT Off-road