HomeBrake > Hardware, Fasteners and FittingsURO 91135590502 Brake Master Cylinder Reservoir Cap
Part #: 91135590502

URO 91135590502 Brake Master Cylinder Reservoir Cap

⚙️ 22 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$17.31Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Porsche, 911 and 928
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Reliable Brake Master Cylinder Reservoir Cap for Porsche 911 and 928

The URO 91135590502 brake master cylinder reservoir cap is designed to provide a secure seal and maintain optimal brake fluid conditions for Porsche 911 and 928 models. Crafted from durable polypropylene with a painted black finish, this OEM-style cap ensures compatibility and longevity in your vehicle's braking system.

  • Constructed from high-quality polypropylene (PP) material for durability and chemical resistance
  • Painted black finish matching original equipment appearance
  • Screw-on attachment type for secure and easy installation
  • OEM shape and dimensions with a 19.1-inch diameter and 0.54-inch height
  • Includes gasket and seal to prevent brake fluid leaks and contamination
  • Oil resistant properties to withstand brake fluid exposure

Product Details and Specifications

This brake master cylinder reservoir cap by URO is engineered to meet the exact specifications of Porsche 911 and 928 brake systems. The screw-on cap type ensures a tight fit, preventing brake fluid evaporation and contamination. Its OEM shape and size maintain the integrity of the brake fluid reservoir, while the included gasket and seal provide an effective barrier against leaks. The black painted finish not only matches the original equipment but also offers resistance to oil and brake fluid exposure, contributing to the part's durability.

Compatible Vehicles and Common Applications

  • Compatible with Porsche 911 models requiring part number 91135590502
  • Suitable for Porsche 928 brake master cylinder reservoir replacement
  • Ideal for addressing brake fluid reservoir cap leaks or damage
  • Used to maintain proper brake fluid pressure and prevent contamination
  • Replacement for worn or cracked reservoir caps to ensure brake system reliability

Installation Notes and Tips

Installation of the URO brake master cylinder reservoir cap is straightforward due to its screw-on design. Ensure the gasket and seal are properly seated to avoid leaks. Clean the reservoir opening before installation to remove any debris or old fluid residue. Tighten the cap securely but avoid over-tightening to prevent damage to the threads or gasket.

Quality Assurance and Warranty Information

URO parts are manufactured to meet or exceed OEM standards for fit and function. This brake master cylinder reservoir cap undergoes quality checks to ensure durability and compatibility with Porsche 911 and 928 models. While specific warranty details are not provided, URO products typically come with a limited warranty against defects in material and workmanship.

BrandURO
Part Number91135590502
MaterialPp
ColorBlack
FinishPainted
Attachment TypeScrew on
ShapeOem
Gasket Or Seal IncludedYes
Cap TypeScrew on
ColorBlack
Diameter (In)19.1
Dipstick IncludedNo
Gasket Or Seal IncludedYes
Height (In).54
Oil ResistantYes
Seal IncludedYes

This part fits 22 vehicles. Search below:

YearMakeModelSubmodelPositionNotes
1995Porsche928N/AIncl. Rubber Gasket
1994Porsche928N/AIncl. Rubber Gasket
1993Porsche928N/AIncl. Rubber Gasket
1991Porsche928N/AIncl. Rubber Gasket
1990Porsche928N/AIncl. Rubber Gasket
1989Porsche928N/AIncl. Rubber Gasket
1988Porsche928N/AIncl. Rubber Gasket
1987Porsche928N/AIncl. Rubber Gasket
1983Porsche911SCN/AIncl. Rubber Gasket
1982Porsche911SCN/AIncl. Rubber Gasket
1981Porsche911SCN/AIncl. Rubber Gasket
1980Porsche911N/AIncl. Rubber Gasket
1979Porsche911N/AIncl. Rubber Gasket
1978Porsche911N/AIncl. Rubber Gasket
1977Porsche911N/AIncl. Rubber Gasket
1976Porsche911N/AIncl. Rubber Gasket
1975Porsche911N/AIncl. Rubber Gasket
1974Porsche911CarreraN/AIncl. Rubber Gasket
1974Porsche911SN/AIncl. Rubber Gasket
1973Porsche911N/A
1972Porsche911N/A
1971Porsche911N/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:

1661200300477 611 361911 355 905 0291135590502914 355 905 00URO-007946

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