Coolant Leak Detection Kit
FailThe top 5 brands take 95% of clicks, so Coolant Leak Detection Kit is a Fail.
- Flapen Score
- 36 / 100Ranks 6,608 of 7,287 Automotive niches · −13 vs the category median of 4936
- Market size
- $58K/yr37K searches / yr
- 90-day growth
- -20.1%search demand this quarter
- Competition
- 82%top-5 click share · 7 brands · 42 sellers
Flapen Score
Coolant Leak Detection Kit against its category
The dotted line is the Automotive average. Past it, Coolant Leak Detection Kit is stronger. Inside it, weaker.
Market
The Coolant Leak Detection Kit market on Amazon at a glance
Shoppers on Amazon United States searched for Coolant Leak Detection Kit 37K times last year and spent an estimated $58K. The top 5 brands take 95% of clicks. Flapen scores it 36 out of 100, a Fail.
01 · Demand
An estimated 12.6% of those searches ended in a purchase.
Shoppers searched for this 37K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 12.6% of those searches ended in a purchase. Searches in the last 90 days moved -20.1% against the 90 days before. Searches, conversion and average price together put the market at an estimated $58K a year.
- Searches, last 12 months
- 37K
- Growth, 90 days vs prior 90
- -20.1%
- Conversion, latest week
- 12.6%
- Market size, estimated
- $58Ka year
- Peak month
- April1.6× the quietest month
- Top search term
- coolant dye10K searches a year
02 · Price
A sale here is worth $12.26.
Listings sell for $12.26 on average, from $6.56 to $19.59. Amazon reports units sold in ranges. This niche sold 5K to 6K a year. The average listing sells 500 to 750 of them. At $12.26 that is $6K to $9K a year per listing.
- Average price
- $12.26under the $15 to $100 sweet spot
- Price range
- $6.56–$19.59
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 5K–6K
- Units per listing a year
- 500–750
- Revenue per listing a year
- $6K–$9K
- Returns
- 1.8%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is low.
90% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 3.9% of listings are out of stock. The average listing ranks #85 within Oils & Fluids. It carries 874 reviews at 4.58 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 90%
- Prime listings
- 100%
- Out of stock, average day
- 3.9%
- Average rank
- #85in Oils & Fluids
- Average rating
- 4.58 starsAmazon United States average 4.42 stars
- Average reviews
- 874per listing
- Listings tracked
- 10
04 · Newcomers
0 of last year's 1 launches cleared the first-year sales bar.
1 products launched here in the last 12 months. 0 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 90 months on average, so the names here are established.
- Launched, last 12 months
- 1
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 90 months
Products
Top Coolant Leak Detection Kit products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 9, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
TSI Supercool Synthetic U/V Leak Detection Dye 1 oz 1 Application
- Price
- $6.56
- Rating
- 4.5/5
- Reviews
- 551
- Age
- 13y ago

A/C Pro Certified Auto Pro Oil and Fuel System UV Dye Leak Detection for Cars & Trucks & More 1 Oz 374CS Universal
- Price
- $7.59
- Rating
- 4.5/5
- Reviews
- 2,547
- Age
- 22y ago

TSI Supercool RD8 Radiator Coolant Water Based U/V Leak Detection Dye (Self Measure Bottle) Purple 8-Ounce Bottle
- Price
- $18.88
- Rating
- 4.5/5
- Reviews
- 551
- Age
- 13y ago

ACDelco GM Original Equipment 10-5057 (12378563) Engine Cooling System Tracer Dye - 1 oz
- Price
- $7.67
- Rating
- 4.6/5
- Reviews
- 426
- Age
- 14y ago

Certified A/C Pro Car Air Conditioner Leak Detector Dye Leak Detection UV Dye for Cars and Radiators 1 Oz InterDynamics
- Price
- $9.12
- Rating
- 4.6/5
- Reviews
- 936
- Age
- 22y ago
Trending
estimated 90-day click momentum
LEAKFINDER LF3001CS Automotive Engine Coolant Leak Detection Dye for Radiators Hoses Heater Cores Water Pumps 1oz Ultraviolet Fluorescent Dye Bottle Services 1 Vehicle
- Price
- $10.71
- Rating
- 4.6/5
- Reviews
- 179
- Age
- 6y ago

Yesibeike Automotive UV Leak Detector Dye Kit 150ml High Visibility Tracer for Radiator Coolant Systems Hose Heater Core Water Pump and AC Includes Dye Cleaner and Gloves
- Price
- $16.09
- Rating
- 4.6/5
- Reviews
- 17
- Age
- 7mo ago

TSI Supercool RD8 Radiator Coolant Water Based U/V Leak Detection Dye (Self Measure Bottle) Purple 8-Ounce Bottle
- Price
- $18.88
- Rating
- 4.5/5
- Reviews
- 551
- Age
- 13y ago

ACDelco 1149328 GM Original Equipment 10-5046 Dex-Cool Leak Detection Tracer Dye - 1 oz
- Price
- $8.27
- Rating
- 4.7/5
- Reviews
- 337
- Age
- 14y ago

Vansky Air Conditioner Leak Detector: Professional Car Tool 68 LED Automotive AC UV Dye Leak Detection Kit with Protective Glasses
- Price
- $18.14
- Rating
- 4.6/5
- Reviews
- 627
- Age
- 2y ago
Newest
by launch date
Yesibeike Automotive UV Leak Detector Dye Kit 150ml High Visibility Tracer for Radiator Coolant Systems Hose Heater Core Water Pump and AC Includes Dye Cleaner and Gloves
- Price
- $16.09
- Rating
- 4.6/5
- Reviews
- 17
- Age
- 7mo ago

Vansky Air Conditioner Leak Detector: Professional Car Tool 68 LED Automotive AC UV Dye Leak Detection Kit with Protective Glasses
- Price
- $18.14
- Rating
- 4.6/5
- Reviews
- 627
- Age
- 2y ago

REALHUNLEE Air Conditioner UV Dye Leak Detector Pro Auto Oil AC UV Dye Leak Test Detection Tool Kit 68 LED A/C UV Flashlight Detector with Protective Glasses
- Price
- $19.59
- Rating
- 4.6/5
- Reviews
- 2,570
- Age
- 5y ago

LEAKFINDER LF3001CS Automotive Engine Coolant Leak Detection Dye for Radiators Hoses Heater Cores Water Pumps 1oz Ultraviolet Fluorescent Dye Bottle Services 1 Vehicle
- Price
- $10.71
- Rating
- 4.6/5
- Reviews
- 179
- Age
- 6y ago

TSI Supercool Synthetic U/V Leak Detection Dye 1 oz 1 Application
- Price
- $6.56
- Rating
- 4.5/5
- Reviews
- 551
- Age
- 13y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 82% of clicks. A locked shelf that new listings rarely crack.
Brands
7 flat
Sellers
42
Est. top-5 brand share
95%
Top 20: 100%
Est. top-5 click share
82%
Top 20: 100%
Open market
2%
- TSI Supercool51%
- A/C Pro23%
- ACDelco12%
- LEAKFINDER6%
- Yesibeike4%
- Vansky3%
- Open — no brand owns it (1 brand, 2%)
Demand
Coolant Leak Detection Kit search demand
Weekly searches over the year, seasonality beneath. Pick a range.
No pronounced peak months · busiest ÷ quietest = 1.6×
Search terms
Top Coolant Leak Detection Kit search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- coolant dye10K/yr
- coolant uv dye8K/yr
- uv dye for coolant leak8K/yr
- coolant dye leak detection kit4K/yr
- coolant leak dye4K/yr
- uv coolant dye3K/yr
Reviews and returns
What reviews say buyers love and hate about Coolant Leak Detection Kit
We read the reviews and the return reasons for every product selling here.
“Car was leaking”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
17 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Coolant Leak Detection Kit questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









