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Master Cylinder Upgrake Kit for Rear Disc Brake Conversion – Fits Toyota Tacoma & X-Runner

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$279.99
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$279.99 Save $-279.99 (%)
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Upgrade your vehicle with the Master Cylinder Upgrade Kit, designed specifically for Tacoma & X-Runner owners running a rear disc conversion. This kit provides the proper hydraulic balance needed to match the increased stopping power of rear disc brakes, delivering a firmer pedal feel and more consistent performance under heavy braking.

Key Features

  • Optimized for Rear Disc Conversions: Ensures proper brake bias and pedal response.
  • Improved Pedal Feel: Firmer, more responsive braking for added confidence.
  • Durable Construction: Built with high-quality components for long-lasting reliability.

Vehicle Fitments

Fits Models with a Rear Disc Conversion Installed:

  • 2005-2023 Toyota Tacoma (5 & 6 Lug)
  • 2005-2015 Toyota X-Runner

-If your Tacoma has a 6 speed manual transmission, you will need a clutch fluid reservoir.

-All X-Runners reqire a clutch fluid reservoir.

  • Amazon link to the clutch fluid reservoir:

Important Notes

  • Ensure your OEM master cylinder matches the one shown in the third picture.
  • The included poly armor brake lines must be bent to fit your specific application. These lines are flexible and can be bent by hand for a precise fit.
  • Do not install this kit on a Tacoma/X-Runner without a rear disc brake conversion.
  • If your Tacoma has a 6 speed manual transmission, you will need a clutch fluid reservoir (sold separately).

Why Choose SOS Performance?

  • Proven Quality: Every kit is designed, tested, and backed by years of hands-on performance experience.
  • Performance You Can Trust: From daily driving to heavy-duty use, our components deliver reliability and confidence.
  • Support That Cares: We’re a family-owned business dedicated to helping you get the right setup for your vehicle.
  • Fast Shipping: Most orders ship same or next day, so you can get on the road quicker.