Best Brake Fluid Reservoirs of 2026

Robert Reyes Avatar
Robert Reyes
Last Updated: Jan 9, 2026

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Brake fluid reservoirs are an essential component of a vehicle's braking system. These reservoirs store brake fluid, which is responsible for creating hydraulic pressure that enables the brakes to function properly. The reservoirs are typically made of plastic or metal and are located near the master cylinder. It is important to regularly check the brake fluid levels in the reservoir and refill as necessary to ensure the brakes are functioning correctly. A malfunctioning brake fluid reservoir can lead to brake failure and should be replaced immediately.

At a Glance: Our Top Picks

PowerMadd PM13740 Oil Sleeve Cover #TOP 1
PowerMadd PM13740 Oil Sleeve
ftb score rating icon 9.8
Empi Brake Reservoir Cover #TOP 2
Empi Brake Reservoir
ftb score rating icon 9.7
Millcraft Universal Motorcycle Front Brake Reservoir Cap Screws M4x0.7x12mm Black Cover #TOP 3
Millcraft Universal Motorcycle Front Brake Reservoir Cap Screws M4x0.7x12mm Black
ftb score rating icon 9.5

Top 10 Brake Fluid Reservoirs

#TOP 1

PowerMadd PM13740 Oil Sleeve

53740
Natural
PowerMadd PM13740 Oil Sleeve Cover
PowerMadd PM13740 Natural Oil Sleeve

The PowerMadd Oil Sleeve is a handy auto accessory designed to help you manage your brake fluid reservoir. Its compact size, measuring about 1.8 cm long and 13.5 cm wide and high, makes it easy to handle and install in tight spaces. Manufactured in China, this product combines quality with affordability. You get a single unit per package, so you know exactly what you are getting. The PowerMadd Oil Sleeve is a smart choice for anyone looking to maintain their vehicle’s brake fluid system efficiently and conveniently.

What We Like
Compact dimensions
Single unit per package
Brake fluid reservoir use
Affordable origin
#TOP 2

Empi Brake Reservoir

98-6672-B
black
Empi Brake Reservoir Cover
Reservoir, Brake Fluid, with Cap

The Empi Brake Reservoir is a stock master cylinder reservoir designed for VW Beetle 68-79, Ghia 68-79, and Dune Buggy. This reservoir offers several convenient features that make it a great choice for your brake system. First, it is compatible with a wide range of vehicles, ensuring a perfect fit. Second, it is made by the trusted brand Empi, known for its high-quality automotive parts. Third, it is designed to hold brake fluid, ensuring that your brake system operates smoothly and efficiently. Lastly, it is easy to install, saving you time and effort. Upgrade your brake system with the Empi Brake Reservoir and enjoy reliable performance on the road.

What We Like
Compatible with multiple vehicles
High-quality construction
Easy installation
#TOP 3

Millcraft Universal Motorcycle Front Brake Reservoir Cap Screws M4x0.7x12mm Black

Black
M4X0.7X12Mm
Millcraft Universal Motorcycle Front Brake Reservoir Cap Screws M4x0.7x12mm Black Cover
Millcraft ProductsMillcraft Parts Universal Motorcycle Master Cylinder Front Brake Reservoir Cover Cap Screws Replacement M4x0.7x12mm Black Pair

The Millcraft Brake Cap Screws are made from durable 18-8 stainless steel with a black oxide finish, giving you strong and rust-resistant parts that last. Their flat head and Phillips drive design make installation and removal easy, so you can quickly fix or replace your master cylinder screws without hassle. These screws are perfect replacements if your original ones are stripped or rusty, helping you restore your motorcycle’s front brake reservoir securely. Plus, they come in a convenient pack of two, ensuring you have the right amount for your repair needs. These screws work with most motorcycle brands, offering you versatility and peace of mind.

What We Like
Durable stainless steel material
Rust-resistant black oxide finish
Easy Phillips drive installation
Replacement for damaged screws
Pack of two screws
#TOP 4

MotoLoot Shift Pattern Brake Fluid Reservoir Cover

MLAM-090
65432N1
MotoLoot Shift Pattern Brake Fluid Reservoir Cover Cover
Brake Fluid Reservoir Cover Sock for Motorcycles, Sporbikes and Gifts by Moto Loot (Shift Pattern)

The MotoLoot Shift Pattern Cover is a stylish and practical accessory for your motorcycle’s brake fluid reservoir. Its unique design is sure to catch attention at any motorcycle meet, making your bike stand out. Made from thick terry cotton, it shields your reservoir from harmful sunlight, helping to prevent discoloration and cracking over time. This means your brake fluid reservoir stays protected and looks great longer. Plus, it absorbs any brake fluid leaks, protecting your bike’s paint from damage. Designed to fit most motorcycle brake or clutch reservoirs, this cover combines style with useful protection for your ride.

What We Like
Unique shift pattern design
Sunlight protection
Leak absorption
Universal fit
#TOP 5

Empi Dual Circuit Brake Reservoir for Type 1 Beetle and Dune Buggy

17-2878-0
Empi Dual Circuit Brake Reservoir for Type 1 Beetle and Dune Buggy Cover
EMPI Dual Circuit Brake Reservoir, Fits Type 1 Beetle 67-79, Compatible with Dune Buggy

The Empi Dual Circuit Brake Reservoir is a brake fluid reservoir that installs directly on top of dual circuit master cylinders, with compatibility for Volkswagen Type 1 Beetle from 1967 and up. The product includes a plastic cap that fits several master cylinders and does not require hoses or fittings. This brake fluid reservoir is a perfect mounting solution for VW-based dune buggies, sand rails, Baja Bugs, and more.

What We Like
Easy installation with no hoses or fittings required
Compatible with several Volkswagen Type 1 Beetle models
Includes plastic cap and perfect for mounting on VW-based dune buggies and other similar vehicles
#TOP 6

NewYall Brake Master Cylinder Fluid Reservoir Cap

Z47230-20140
Black
NewYall Brake Master Cylinder Fluid Reservoir Cap Cover
NewYall Brake Master Cylinder Fluid Reservoir Cap for Scion iQ tC xB xD Toyota 4Runner Avalon Camry Prius V Corolla Tacoma Highlander Land Cruiser RAV4 Yaris Mirai MR2 Spyder Prius 47230-20140

The NewYall Brake Master Cylinder Fluid Reservoir Cap is designed to fit various Scion and Toyota models, including the 4Runner, Camry, Corolla, Highlander, Prius, RAV4, Tacoma, and Yaris. This cap is used to cover the brake fluid reservoir, keeping it clean and free from debris. It is made of high-quality materials that are durable and long-lasting. This cap is easy to install, and it comes at an affordable price.

What We Like
Easy to install
Keeps brake fluid reservoir clean
Durable and long-lasting materials
#TOP 7

Mityvac MVA6005 Fluid Reservoir Kit

MVA6005
Mityvac MVA6005 Fluid Reservoir Kit Cover
Mityvac MVA6005 Fluid Evacuating and Dispensing Reservoir Kit, 16oz Capacity, 1/4" ID x 6" L Pick-up Tube, Removable Hanging Hook, Used with Hand Vacuum/Pressure Pumps, Collect/Dispense Large Volumes

The Mityvac MVA6005 Fluid Reservoir Kit, made in Taiwan, is a versatile product designed for vehicle maintenance. With its compact size and lightweight design, it is easy to handle and store. The kit includes a 16 oz. fluid reservoir that allows for easy and convenient fluid extraction and transfer. Whether you need to change brake fluid or other vehicle fluids, this reservoir kit is a reliable tool to have. The Mityvac Reservoir Kit is a must-have for any DIY mechanic or professional technician looking for a practical and efficient solution for fluid maintenance.

What We Like
Versatile
Compact
Lightweight
#TOP 8

JFG RACING Front and Rear Brake Fluid Reservoir Cap for CR and CRF Dirt Bikes

N13180203-A
JFG RACING Front and Rear Brake Fluid Reservoir Cap for CR and CRF Dirt Bikes Cover
Motorcycle Front + Rear Brake Fluid Reservoir Cover Cap For CR125R/250R, CRF150R/250R/250F/250X/450R/450X/250RX/450RX/450L Dirt Bike, RED

The JFG RACING Brake Reservoir Cap is designed to fit a wide range of CR and CRF dirt bikes from various model years, ensuring you get the perfect match for your bike. Its striking ruby red color not only adds a bold look but also enhances the style of your ride. Made from forged aluminum alloy, this cap is lightweight yet durable, resisting rust, corrosion, and damage to give you long-lasting use. Plus, installation is quick and easy—just swap out your old cap and secure this one with the set screws. It’s a simple upgrade that protects your brake fluid reservoir from dirt and debris, letting you focus on enjoying your ride.

What We Like
Wide bike compatibility
Eye-catching red color
Durable forged aluminum
Easy installation
Protects brake fluid reservoir
#TOP 9

Lesurey Brake Master Cylinder Reservoir Cap for Toyota Models

47230-12040
Black
Lesurey Brake Master Cylinder Reservoir Cap for Toyota Models Cover
Lesurey Brake Master Cylinder Fluid Reservoir Tank Cap 47230-12040 47230-06010 Compatible with Toyota Compatible with Camry Compatible with Corolla Avalon Compatible with 4Runner Tacoma

The Lesurey Brake Reservoir Cap is designed to fit a wide range of Toyota vehicles, including popular models like the Avalon, Camry, and Corolla. This part ensures a secure seal on your brake master cylinder fluid reservoir, helping to maintain optimal brake fluid levels and system pressure. By choosing this cap, you get compatibility with Toyota models spanning many years, which means you won’t have to worry about fitment issues. It’s a reliable replacement that helps keep your braking system functioning smoothly and safely, making maintenance easier and giving you peace of mind on the road.

What We Like
Wide Toyota model compatibility
Ensures secure brake fluid seal
Reliable replacement part
Supports brake system maintenance
#TOP 10

HTT Chrome Front Brake Fluid Cap for V-Star 650-1300

USMT262-001-CD
Chrome
HTT Chrome Front Brake Fluid Cap for V-Star 650-1300 Cover
HTT Chrome Front Brake Fluid Master Cylinder Cover - V-Star 650/950/1100/1300 (1998-2013)

The HTT Chrome Brake Cap is designed to easily replace your Yamaha V-Star's front brake fluid reservoir cover. Made from durable billet aluminum, this cap offers a sleek chrome finish that not only looks great but also protects your brake fluid. Installation is straightforward—simply screw it directly onto your fluid reservoir, saving you time and effort. The chrome color matches the pictures shown, ensuring a stylish and consistent look for your bike. This cap is a practical upgrade that enhances both the appearance and functionality of your brake system.

What We Like
Durable billet aluminum
Chrome finish
Easy screw-on installation
Fits multiple V-Star models
Buying Guide Image

Frequently Asked Questions (FAQs)

1. What is the brake reservoir called?

What is the Brake Master Cylinder? The brake master cylinder, also known as the master cylinder, is a hydraulic pump. It feeds brake fluid into the brake circuit to convert the pressure on the brake pedal to the hydraulic pressure.

2. Where is brake fluid stored?

The brake fluid reservoir is on top of the master cylinder, which is usually located in one of the back corners of the engine compartment. Just as for other car fluids, the brake fluid level should sit near the high marking on the reservoir.

3. What causes brake fluid to come out the reservoir?

If pads or shoes and their respective counterpart rotors and drums become worn, the pistons that operate the pads or shoes can become hyperextended, breaking the cylinder seals and weeping fluid to the affected area.

4. What are brake fluid reservoirs made of?

The brake fluid reservoir (aka brake master cylinder reservoir) is usually constructed of polymer plastics.

Editor's Notes

During our brake fluid reservoir research, we found 24 brake fluid reservoir products and shortlisted 10 quality products. We collected and analyzed 13,801 customer reviews through our big data system to write the brake fluid reservoirs list. We found that most customers choose brake fluid reservoirs with an average price of $13.76.

The brake fluid reservoirs are available for purchase. We have researched hundreds of brands and picked the top brands of brake fluid reservoirs, including PowerMadd, EMPI, Millcraft Products, MotoLoot, NewYall. The seller of top 1 product has received honest feedback from 156 consumers with an average rating of 4.8.

Written by
Robert Reyes Avatar

Robert Reyes is a dedicated writer from San Francisco with a bachelor of degree in mechanics and a bachelor of degree in marketing. He focuses on making some complicated topics simple and enjoys explaining complex and technical things in an easy-to-understand way.