Brake Fluid Tester Market Report: Sales Volume, Market Share, Leading Brands & Market Trends
Brake Fluid Tester sales on Amazon US totaled 8,550 units in July 2026 (▼ 11.9% vs. the prior month), generating an estimated $190,701 in revenue across the 50 top-ranked ASINs for this search term. Demand is heavily concentrated at the top of the ranking — the ten best performers capture 87.7% of unit volume and 78.9% of revenue, while a typical listing is priced at $37.78. The keyword itself pulled 18,156 Amazon queries over the same period (▲ 6.1% MoM).
Zooming out to the 12-month window ending July 2026, the brake fluid tester Top 50 moved 93,350 units and $2,121,202 in cumulative sales — an average of 7,779 units and $176,767 per month. Monthly throughput topped out at 9,700 units in June 2026 and dipped to 5,050 in May 2026, leaving the latest reading 2.3% lower than August 2025.
Brake Fluid Tester Sales Trend (Trailing 12 Months)
Based on the top 50 ASINs by monthly sales for this keyword
2025/08
2025/09
2025/10
2025/11
2025/12
2026/01
2026/02
2026/03
2026/04
2026/05
2026/06
2026/07
Monthly Sales 2026/07
8.6K
▼ 11.9% MoM
Monthly Revenue 2026/07
$190.7K
▼ 16.8% MoM
Top 10 Market Share 2026/07
87.7%
Brake Fluid Tester Market Share & Sales Concentration on Amazon US — July 2026
The most-sold brake fluid tester listing on Amazon US in July 2026 is ASIN B08H4N69BR (Brand: Orion Motor Tech), which sold 2,000 units at $22.79 apiece — equal to 23.4% of every unit tracked in this report and 2.0× the volume of the No. 2 listing.
The Top 10 ASINs account for 7,500 units and $150,429 in July 2026 — 87.7% of unit volume and 78.9% of revenue among all 50 ranked ASINs in this report.
Sales Volume of Top ASINs for 'Brake Fluid Tester' on Amazon
July 2026
Is 87.7% Top 10 share highly concentrated?
Ask AI to evaluate competition, market structure, and entry opportunities using ’s tracked Amazon sales, ranking, and keyword data.
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Top 5 Volume Share breakdown
B08H4N69BR
OMT One-Man Brake Bleeding Kit with Hand Vacuum Pump and Dial Gauge, Blue | High Grade Aluminum Alloy Fluid Evacuation System; Resilient PVC Tubing and Connectors; Great for Multi-Vehicle Servicing
2K
▼ 33.3%vs. prior month
$43.5K
latest month
12-month trend
B0753MZT7P
Phoenix Systems 15-Pack Double-Ended Brake Fluid & Coolant Test Strips | Ideal for Service Centers, Tests DOT 3/4/5.1 Brake Fluids and All Coolant Types/Colors
1K
▲ 0.0%vs. prior month
$16.1K
latest month
12-month trend
B0D9M279V9
KAIWEETS Brake Fluid Tester Pen with Corrosion Resistance Probe, High-Precision Brake Fluid Moisture Tester with Data Hold Function, Buzzer Alarm, 3 Colors Backlight, Calibrated for DOT3, DOT4, DOT5.1
1K
▲ 0.0%vs. prior month
$20K
latest month
12-month trend
B076SC377J
Brake Fluid Liquid Tester Pen with 5 LED Indicators, Calibrated For DOT3 DOT4 Brake Fluid
900
▼ 10.0%vs. prior month
$12.6K
latest month
12-month trend
B0DF7L5KZZ
ecocstm Brake Fluid Tester, Brake Fluid Moisture Tester, Brake Tester | Brake Fluid Liquid Tester Pen with 5 LED Indicators, Auto Brake Diagnostic Checker Tool for DOT3 DOT4 DOT5.1 Brake Fluid
600
▲ 0.0%vs. prior month
$3.4K
latest month
12-month trend
B0C1SFRRGB
NF Brake Fluid Tester Pen Brake Fluid Test Strips, Calibrated for DOT3 DOT4 DOT-5.1 Brake Fluid
600
▲ 50.0%vs. prior month
$7.8K
latest month
12-month trend
Unlock to view all Top 50 ASIN competitors and their sales contributions
Best Brake Fluid Tester Brands on Amazon US — Top 3 Brand Sales Concentration (July 2026)
Orion Motor Tech is the best-performing brake fluid tester brand in July 2026, moving 2,000 units across 1 ASIN for 26.7% of Top 10 volume. Phoenix Systems follows with 1,000 units (13.3%), ahead of KAIWEETS on 1,000 units (13.3%).
Volume is spread across 9 brands, with the top three holding 53.3% between them. No single label controls the shelf, which usually leaves room for a well-differentiated listing to take share without outspending an incumbent. Average selling prices among the leaders run from $15.15 to $22.79, which frames the price band a competing listing has to justify.
Brand share of Top 10 volume
Orion Motor Tech
1 ASIN in Top 10
26.7%
Units
2K
Revenue
$43.5K
Avg. price
$22.79
B08H4N69BR
$22.79·★4.0·4K revsOMT One-Man Brake Bleeding Kit with Hand Vacuum Pump and Dial Gauge, Blue | High Grade Aluminum Alloy Fluid Evacuation System; Resilient PVC Tubing and Connectors; Great for Multi-Vehicle Servicing
Units sold2K
Phoenix Systems
1 ASIN in Top 10
13.3%
Units
1K
Revenue
$16.1K
Avg. price
$15.15
B0753MZT7P
$15.15·★4.6·1.5K revsPhoenix Systems 15-Pack Double-Ended Brake Fluid & Coolant Test Strips | Ideal for Service Centers, Tests DOT 3/4/5.1 Brake Fluids and All Coolant Types/Colors
Units sold1K
KAIWEETS
1 ASIN in Top 10
13.3%
Units
1K
Revenue
$20K
Avg. price
$19.99
B0D9M279V9
$19.99·★4.5·583 revsKAIWEETS Brake Fluid Tester Pen with Corrosion Resistance Probe, High-Precision Brake Fluid Moisture Tester with Data Hold Function, Buzzer Alarm, 3 Colors Backlight, Calibrated for DOT3, DOT4, DOT5.1
Units sold1K
Trending Brake Fluid Tester Products — Growth Leaders & New Top 10 Entrants
Based on July 2026 data, this shortlist surfaces the two kinds of ASIN worth keeping an eye on — the ones that just broke into the Top 10, and the ones growing fastest month over month. On the growth side, B0DNT3CXMR leads positive momentum with ▲ 100.0% MoM growth on 100 units, with B0B3M4DDFR close behind at ▲ 100.0% MoM on 100 units.
The two signals carry different weight. A fresh entrant means share has already changed hands — an incumbent gave up its place to make room, so any competitive set drawn up a month ago is now out of date. A steep growth rate works as the earlier warning: it marks demand that is still compounding, usually a month or two before the ranking catches up to it.
B0DNT3CXMR
TESMEN TBF-200 Brake Fluid Tester with 8.5-Inch Corrosion Resistance Gooseneck Probe, High-Precision Brake Fluid Tester Pen with Data Hold, 3 Colors Backlight Alarm for DOT3, DOT4, DOT5.1-Green
Price
$15.99
Rating
4.6
Reviews
460
Latest month sales
B0B3M4DDFR
Phoenix Systems 100 Double-Ended Brake & Coolant Test Strips | Ideal for Service Centers, Includes 100 Customer Rating Cards, Tests DOT 3/4/5.1 Brake Fluids and All Coolant Types/Colors
Price
$87.97
Rating
4.7
Reviews
33
Latest month sales
B0DF7KYFFM
ecocstm 2 PCS Brake Fluid Tester, Brake Fluid Moisture Tester, Brake Tester | Brake Fluid Liquid Tester Pen with 5 LED Indicators, Auto Brake Diagnostic Checker Tool for DOT3 DOT4 DOT5.1 Brake Fluid
Unlock to view ASIN details and product titles
Price
$7.59
Rating
4.1
Reviews
296
Latest month sales
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