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title: "coolant leak detection kit — Niche Verdict: Skip it (37/100) | Amazon United States - Flapen"
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last_updated: "2026-07-10T01:41:58.216Z"
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  description: "a small market ($58K/yr) — coolant leak detection kit doesn't clear our bar today."
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  "og:title": "coolant leak detection kit — Niche Verdict: Skip it (37/100) | Amazon United States - Flapen"
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# **coolant leak detection kit**

**Skip it****37/100 **

a small market ($58K/yr) — coolant leak detection kit doesn't clear our bar today.

**Market/yr**

**$58K**

**Growth (1y)**

**+164.0%**

**Products**

**10**

**Brands**

**7**

was 7 a year ago

**Sellers**

**42**

**Price range**

**$6.56–$19.59**

**Returns**

**1.8%**

**Rating**

**4.6★**

**Skip it**

Scored 37/100 across market size, growth, competition, quality gap, and returns.

Market sizeGrowthCompetitionQuality gapReturns

Market size

**3**

 ×0.30

Growth

**73**

 ×0.30

Competition

**12**

 ×0.20

Quality gap

**32**

 ×0.10

Returns

**86**

 ×0.10

## **Demand**

Weekly Amazon search volume, last 67 weeks — +164.0% year over year.

1K619.5Spike '25Spike '26Mar '25Jun '25Aug '25Nov '25Feb '26Apr '26

## **Seasonality**

Monthly demand index across the year — 1.00 is average.

JFMAMJJASOND

No pronounced peak months · busiest ÷ quietest = 1.6×

## **Competition**

- TSI Supercool51% - A/C Pro23% - ACDelco12% - LEAKFINDER6% - Yesibeike4% - Vansky3% - Other (1 brands)2%

The top 5 products capture 82% of clicks — a locked-up shelf that new listings rarely crack. 7 brands and 42 sellers compete here.

**Brands**

**7 **—flat

was 7 a year ago

**Sellers**

**42**

**Top 5 brand share**

**95%**

#ProductBrandPriceRatingReviewsClick shareTrend

1
![TSI Supercool Synthetic U/V Leak Detection Dye 1 oz 1 Application](https://m.media-amazon.com/images/I/41VLFu9wlML.jpg) [**TSI Supercool Synthetic U/V Leak Detection Dye 1 oz 1 Application**](https://www.amazon.com/dp/B008PKV0TM)

TSI Supercool$6.564.5★55138%▼falling

2
![A/C Pro Certified Auto Pro Oil and Fuel System UV Dye Leak Detection for Cars & Trucks & More 1 Oz 374CS Universal](https://m.media-amazon.com/images/I/417SxPtmkkL.jpg) [**A/C Pro Certified Auto Pro Oil and Fuel System UV Dye Leak Detection for Cars & Trucks & More 1 Oz 374CS Universal**](https://www.amazon.com/dp/B002M4G24U)

A/C Pro$7.594.5★2,54716%▼falling

3
![TSI Supercool RD8 Radiator Coolant Water Based U/V Leak Detection Dye (Self Measure Bottle) Purple 8-Ounce Bottle](https://m.media-amazon.com/images/I/51lTSxJELpL.jpg) [**TSI Supercool RD8 Radiator Coolant Water Based U/V Leak Detection Dye (Self Measure Bottle) Purple 8-Ounce Bottle**](https://www.amazon.com/dp/B008PKWEHY)

TSI Supercool$18.884.5★55114%▲rising

4
![ACDelco GM Original Equipment 10-5057 (12378563) Engine Cooling System Tracer Dye - 1 oz](https://m.media-amazon.com/images/I/21dlHxlv2NL.jpg) [**ACDelco GM Original Equipment 10-5057 (12378563) Engine Cooling System Tracer Dye - 1 oz**](https://www.amazon.com/dp/B008I2VOCA)

ACDelco$7.674.6★4268%▼falling

5
![Certified A/C Pro Car Air Conditioner Leak Detector Dye Leak Detection UV Dye for Cars and Radiators 1 Oz InterDynamics](https://m.media-amazon.com/images/I/41re7RzviBL.jpg) [**Certified A/C Pro Car Air Conditioner Leak Detector Dye Leak Detection UV Dye for Cars and Radiators 1 Oz InterDynamics**](https://www.amazon.com/dp/B002M4E0VC)

A/C Pro$9.124.6★9367%▼falling

6
![LEAKFINDER LF3001CS Automotive Engine Coolant Leak Detection Dye for Radiators Hoses Heater Cores Water Pumps 1oz Ultraviolet Fluorescent Dye Bottle Services 1 Vehicle](https://m.media-amazon.com/images/I/414y-TClCrL.jpg) [**LEAKFINDER LF3001CS Automotive Engine Coolant Leak Detection Dye for Radiators Hoses Heater Cores Water Pumps 1oz Ultraviolet Fluorescent Dye Bottle Services 1 Vehicle**](https://www.amazon.com/dp/B07V7GS23R)

LEAKFINDER$10.714.6★1796%▲rising

7
![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](https://m.media-amazon.com/images/I/41MEL82p85L.jpg) [**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**](https://www.amazon.com/dp/B0GCBNPNTC)

Yesibeike$16.094.6★174%▲rising

8
![ACDelco 1149328 GM Original Equipment 10-5046 Dex-Cool Leak Detection Tracer Dye - 1 oz](https://m.media-amazon.com/images/I/21VrhO0QVzL.jpg) [**ACDelco 1149328 GM Original Equipment 10-5046 Dex-Cool Leak Detection Tracer Dye - 1 oz**](https://www.amazon.com/dp/B008I2VKNI)

ACDelco$8.274.7★3373%▲rising

9
![Vansky Air Conditioner Leak Detector: Professional Car Tool 68 LED Automotive AC UV Dye Leak Detection Kit with Protective Glasses](https://m.media-amazon.com/images/I/51TnAR9aFLL.jpg) [**Vansky Air Conditioner Leak Detector: Professional Car Tool 68 LED Automotive AC UV Dye Leak Detection Kit with Protective Glasses**](https://www.amazon.com/dp/B0CS6M7653)

Vansky$18.144.6★6273%▲rising

10

![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](https://m.media-amazon.com/images/I/41kHP7ab8TL.jpg) [**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**](https://www.amazon.com/dp/B08DVBM9ZF)

REALHUNLEE$19.594.6★2,5702%▼falling

## **Product shelf**

All 10 tracked products in this niche.

Top sellersNewestTrending

[![TSI Supercool Synthetic U/V Leak Detection Dye 1 oz 1 Application](https://m.media-amazon.com/images/I/41VLFu9wlML.jpg)**TSI Supercool Synthetic U/V Leak Detection Dye 1 oz 1 Application** TSI Supercool**$6.56**4.5★551 reviews](https://www.amazon.com/dp/B008PKV0TM) [![A/C Pro Certified Auto Pro Oil and Fuel System UV Dye Leak Detection for Cars & Trucks & More 1 Oz 374CS Universal](https://m.media-amazon.com/images/I/417SxPtmkkL.jpg)**A/C Pro Certified Auto Pro Oil and Fuel System UV Dye Leak Detection for Cars & Trucks & More 1 Oz 374CS Universal** A/C Pro**$7.59**4.5★2,547 reviews](https://www.amazon.com/dp/B002M4G24U) [![TSI Supercool RD8 Radiator Coolant Water Based U/V Leak Detection Dye (Self Measure Bottle) Purple 8-Ounce Bottle](https://m.media-amazon.com/images/I/51lTSxJELpL.jpg)**TSI Supercool RD8 Radiator Coolant Water Based U/V Leak Detection Dye (Self Measure Bottle) Purple 8-Ounce Bottle** TSI Supercool**$18.88**4.5★551 reviews](https://www.amazon.com/dp/B008PKWEHY) [![ACDelco GM Original Equipment 10-5057 (12378563) Engine Cooling System Tracer Dye - 1 oz](https://m.media-amazon.com/images/I/21dlHxlv2NL.jpg)**ACDelco GM Original Equipment 10-5057 (12378563) Engine Cooling System Tracer Dye - 1 oz** ACDelco**$7.67**4.6★426 reviews](https://www.amazon.com/dp/B008I2VOCA) [![Certified A/C Pro Car Air Conditioner Leak Detector Dye Leak Detection UV Dye for Cars and Radiators 1 Oz InterDynamics](https://m.media-amazon.com/images/I/41re7RzviBL.jpg)**Certified A/C Pro Car Air Conditioner Leak Detector Dye Leak Detection UV Dye for Cars and Radiators 1 Oz InterDynamics** A/C Pro**$9.12**4.6★936 reviews](https://www.amazon.com/dp/B002M4E0VC) [![LEAKFINDER LF3001CS Automotive Engine Coolant Leak Detection Dye for Radiators Hoses Heater Cores Water Pumps 1oz Ultraviolet Fluorescent Dye Bottle Services 1 Vehicle](https://m.media-amazon.com/images/I/414y-TClCrL.jpg)**LEAKFINDER LF3001CS Automotive Engine Coolant Leak Detection Dye for Radiators Hoses Heater Cores Water Pumps 1oz Ultraviolet Fluorescent Dye Bottle Services 1 Vehicle** LEAKFINDER**$10.71**4.6★179 reviews](https://www.amazon.com/dp/B07V7GS23R) [![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](https://m.media-amazon.com/images/I/41MEL82p85L.jpg)**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** Yesibeike**$16.09**4.6★17 reviews](https://www.amazon.com/dp/B0GCBNPNTC) [![ACDelco 1149328 GM Original Equipment 10-5046 Dex-Cool Leak Detection Tracer Dye - 1 oz](https://m.media-amazon.com/images/I/21VrhO0QVzL.jpg)**ACDelco 1149328 GM Original Equipment 10-5046 Dex-Cool Leak Detection Tracer Dye - 1 oz** ACDelco**$8.27**4.7★337 reviews](https://www.amazon.com/dp/B008I2VKNI)

## **Reviews**

What buyers praise and complain about, mined from review topics.

### **What buyers love **

**Leak-Proof**23%

*“Useful to chase down leak”*

**Advertised Vs Actual Product**12%

*“Works as advertised”*

**Value For Money**9%

*“Decent price works as it should”*

**Efficiency**8%

*“Works perfectly”*

**Ease Of Use**7%

*“Easy to use”*

**Quality-Overall**6%

*“Excellent product”*

**Brightness/Shine/Glow**6%

*“Bright light”*

**Color**5%

*“Color is nice”*

**Functionality-Overall**1%

*“The black light is working correctly”*

**Smell**1%

*“It doesn't have a strong odor so it is not caustic”*

### **What buyers complain about **

**Leak-Proof**38%

*“Car was leaking”*

**Brightness/Shine/Glow**7%

*“Flashlight does not stay on”*

**Color**4%

*“no dye found anywhere”*

**Quality-Overall**3%

*“Junk”*

**Functionality-Overall**3%

*“Did not work”*

**Durability**2%

*“Didn't last”*

**Natural Resource Wastage**2%

*“Waste of money”*

**Strength**2%

*“Too weak”*

**Ease Of Use**2%

*“It was a bit frustrating to use”*

**Coolant**1%

*“Did I fix my coolant issue with it? No”*

#### **Top return reasons**- Leak-Proof20% - Advertised Vs Actual Product12% - Color10% - Compatibility-Overall10% - Functionality-Overall9% - Brightness/Shine/Glow9% - Value For Money5% - Coolant4% - Size-Overall3% - Defective Material/Parts3%