Best Brake Fluid Level Sensors in 2026

Test the car brake fluid quality quickly to check whether it’s qualified, which can remind you to change the brake fluid when necessary to avoid traffic accident

The LED indicators will show percentage of water in the brake fluid with 3 colors green yellow and red

Calibrated for cars using DOT4 and DOT3 brake fluids (But DOT3 is almost replaced by DOT4 because DOT4 has better performance)

Sensor

GM-recommended replacement part for your GM vehicle’s original factory component

Offering the quality, reliability, and durability of GM OE

Manufactured with GM Original Equipment specification for fit, form, and function

EASY USE: With an easy push of a button, this brake fluid tester pen turns on and has a built-in self test; Switch button allows for you to easily cycle through fluid test types

ALL THE FLUIDS: Precisely check the water content of all 8 types of polyglycol-based brake fluids: brake fluid DOT 3, brake fluid DOT 4, DOT 5. 1, ACDelco DOT 3, Pennzoil, Prestone, Motorcraft, and Toyota DOT 3 with the brake fluid liquid tester

PROTECTS YOU AND YOUR CAR: To prevent brake failure, it’s essential to have this brake fluid test kit; Brake fluid pen is easy to carry and takes up little space

Why We Must Have -- Brake pressure was transmitted by brake fluid, the pressure transmission will be out of function once brake fluid including too much water. In order to safe-driving, we must test water ratio scale in brake fluid regularly. The brake fluid tester helps us do current maintenance, make sure we drive in safe condition.

Premium Design -- 250mm Goose Neck Probe provides flexibility on detection, with its chromed surface, can be resistant to oils and oxidation; 3 LED lights show selected brake fluid types and 6 LED lights show percentages of water in the brake fluid.

Convenient Tool -- Size of small, perfect hand-feeling. Buzzing and red light double alarm system, test result is clear absolutely.

Direct replacement - this washer fluid level sensor seal is designed to match the fit and function of the original seal on specified vehicles

Restores functionality - this seal is made to fit and fully restore part functionality after the original seal fails

Durable construction - this part is made from quality materials to ensure reliable performance and long service life

Product Type: Auto Part

Package Quantity: 1

Package Weight: 1.1 lbs

【SAFE & USEFUL】The auto brake fluild analyzer calibrated for DOT 3, DOT4, and DOT 5. which can remind you to change the brake fluid when necessary to avoid traffic accident. Measurement range from (0-3%) moisture contain in the Brake fluid.

【EASY TO USE】The automotive brake fluid tester indicate whether the brake fluid can still be used safely or needs to be replaced, very useful tool for ensuring good braking effect and driving safety. It can quick and easy way to test for moisture content in the Brake fluid. Power supply: 1.5V button cell, LR44 or Equivalent, 3 piece.

【3 DIFFERENT LEDs】Diagnostic Testing Tool has 3 different leds that light up according to the condition of the brake fluid. LEDs indicating the quality of the Brake fluid. Green, yellow and red. They refer to the water content in the fluid. From low to high, they are GREEN (<1.5%), YELLOW (1.5-3%),RED(>3%).

High Quality Materials

Instantly replaces old hardened and cracked windshield washer fluid level sensor seals

Molded to OE dimensions and shape for easy installation and proper fit

Circuit Tracers & Analyzers KS11 can test the brake fluid quality quickly and accurately, check the humidity to indicate you the brake fluid state, and providing you with reliable basis for still be used safely or needs to be replaced.

Applies to DOT3, DOT4 and DOT5.1 these three types of brake fluid testing,using the AC pulse testing method, greatly to reduce the polarization phenomenon during the brake fluid testing.

Digital brake fluid tester is equipped with digital tube digital display,the test result is accurate and the measuring speed is fast.It is a very useful tool for ensuring good braking effect and driving safety.

Helps increase the number of needed brake fluid exchange services you perform by providing proof for the needed service.

Gives you and your team of service advisors confidence to offer a needed brake fluid exchange.

Identifies potential brake flulid related problems before they occur -thereby ensuring your customers safety.

Genuine Brake Fluid Flow Switch

Touring;Anti-Lock 4-Wheel-Disc Brakes

Qty needed per vehicle: 1

Guaranteed fitment

Replacement of failed washer fluid level sensor instantly restores proper low-fluid level indicator performance

Direct-fit OE reproduction design for easy plug-and-play installation

Product Type :Auto Accessory

Package Dimensions :2.8 Cm L X5.2 Cm W X11.0 Cm H

Country Of Origin :United States

Top performance for long service life

Maximum reliability

Designed to meet or exceed OE specifications in form, fit and function

Offering the quality, reliability, and durability of GM OE

Manufactured with GM Original Equipment specification for fit, form, and function

GM-recommended replacement part for your GM vehicle s original factory component

GM-recommended replacement part for your GM vehicle’s original factory component

Offering the quality, reliability, and durability of GM OE

Manufactured with GM Original Equipment specification for fit, form, and function

【Compatible Models】Replacement for Ford F250 F350 F450 F550 E350 2005-2012

【Part Number】 5140651AA, BST116, 5S7048, 5S8251, NBST316, SU8540, 71-3818

【Premium Quality】Fast response time, high accuracy in full temperature range, strong resistance to overload and shock, good long-term stability

GM-recommended replacement part for your GM vehicle’s original factory component

Offering the quality, reliability, and durability of GM OE

Manufactured with GM Original Equipment specification for fit, form, and function

Replacement for Ford F250 F350 F450 F550 E350 2005-2012

Part Number: 5140651AA, BST116, 5S7048, 5S8251, NBST316, SU8540, 71-3818

Package Included: 1 x Brake Fluid Pressure Sensor as Pictured

GM-recommended replacement part for your GM vehicle’s original factory component

Offering the quality, reliability, and durability of GM OE

Manufactured with GM Original Equipment specification for fit, form, and function

Package Dimensions: 1.5 L x 2.63 H x 1 W (inches)

Package Weight: 0.03 pounds

Country of Origin : China

Wire Harness Length:10CM

Direct replacement for easy installation

Constructed from high-quality plastic for greater durability

Wire Harness Length:10CM

Direct replacement for easy installation

Constructed from high-quality plastic for greater durability

FITMENT | For 1987-1991 Jeep Cherokee XJ

OE REFERENCE | 4637625

OMIX 17237.23 | Brake Fluid Level Sensor