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
Description
Data: v2 - Desc: v4.2 - Upd: 2026-11-08 19:54:50
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 Replace that faulty or outdated master cylinder with one of the power brake booster conversion kits from RT Off-Road.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 | |
|---|---|
| Brand | RT Off-Road |
| Manufacturer's Part Number | RT31018 |
| Part Type | Master Cylinder and Brake Booster Assemblies |
| Product Line | RT Off-Road Power Brake Booster Conversion Kits |
| UPC | 849603011569 |
| Master Cylinder Bore Size | 1.000 in. |
| Bowl Design | Dual |
| Master Cylinder Material | Iron |
| Master Cylinder Finish | Natural |
| Reservoir Included | Yes |
| Reservoir Material | Iron |
| Proportioning Valve Included | No |
| Master Cylinder Cap Included | Yes |
| Brake Booster Type | Vacuum dual diaphragm |
| Brake Booster Diameter (in.) | 8.25 in. |
| Brake Booster Material | Steel |
| Brake Booster Color | Gold |
| Brake Pedal Rod Extension Included | Yes |
| Mounting Location | Stock |
| Mounting Hardware Included | Yes |
| Remanufactured | No |
| Quantity | Sold as a kit. |
| Notes | Engine vacuum must be 18 in. or greater at idle while engine is warm to function properly. |
Compatibility
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