HomeBrake > Brake HydraulicsURO 91135501313 Brake Master Cylinder Reservoir
Part #: 91135501313

URO 91135501313 Brake Master Cylinder Reservoir

19 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Porsche, 911
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Porsche 911 Brake Master Cylinder Reservoir

This URO brake master cylinder reservoir is a direct-fit replacement for classic Porsche 911 brake hydraulics. It is built to OE reservoir dimensions for proper clearance and a factory-style appearance on 1968-1986 Porsche 911 models.

Key Features

  • Guaranteed fitment for the listed Porsche 911 applications
  • Replacement for cracked, leaking, or heat-damaged brake fluid reservoirs
  • Heat- and chemical-resistant polymer construction for brake fluid exposure
  • Manufactured to OE master cylinder reservoir dimensions
  • Quality control performed throughout production
  • URO part number 91135501313

Detailed Description

Use this brake master cylinder reservoir to restore proper brake fluid storage on a Porsche 911. The tank is molded to match original reservoir dimensions, helping maintain clearance in the engine bay while preserving the factory look expected on air-cooled Porsche brake systems. The polymer material is selected to withstand brake fluid contact and elevated engine heat, making it a practical replacement for aging original components. This part cross-references Genuine 91135501313 for the same application.

What It Helps Fix

  • Brake fluid leaks from a cracked reservoir
  • Low fluid level warnings caused by reservoir seepage
  • Heat-related deterioration of the original tank
  • Brake hydraulic service issues tied to damaged fluid storage
  • Loss of factory appearance in the brake master cylinder area

Installation Notes and Tips

Fits 1968-1986 Porsche 911, N/A. Verify reservoir shape, mounting points, and hose connections against the original unit before installation. Inspect the brake master cylinder, fluid hoses, and surrounding hydraulic components for wear or contamination during replacement. Use only clean brake fluid and follow the vehicle service procedure for bleeding and system checks after installation.

Quality Assurance

URO manufactures this reservoir with step-by-step quality control and backs it with a 24 Month Unlimited Mileage Warranty.

This part fits 19 vehicles. Search below:

YearMakeModelPositionNotes
1986Porsche911N/A
1985Porsche911N/A
1984Porsche911N/A
1983Porsche911N/A
1982Porsche911N/A
1981Porsche911N/A
1980Porsche911N/A
1979Porsche911N/A
1978Porsche911N/A
1977Porsche911N/A
1976Porsche911N/A
1975Porsche911N/A
1974Porsche911N/A
1973Porsche911N/A
1972Porsche911N/A
1971Porsche911N/A
1970Porsche911N/A
1969Porsche911N/A
1968Porsche911N/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

91135501313URO-009935

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.