---
title: "coolant vacuum refill kit — Niche Verdict: Worth a look (50/100) | Amazon United States - Flapen"
canonical_url: "https://flapen.com/amazon/research/us/automotive/coolant-vacuum-refill-kit"
last_updated: "2026-07-14T02:41:15.731Z"
locale: en
meta:
  description: "coolant vacuum refill kit shows a sweet-spot price point ($50.72 avg), but soft demand (-21.0% this quarter) keeps it on the watch list."
  "og:description": "coolant vacuum refill kit shows a sweet-spot price point ($50.72 avg), but soft demand (-21.0% this quarter) keeps it on the watch list."
  "og:title": "coolant vacuum refill kit — Niche Verdict: Worth a look (50/100) | Amazon United States - Flapen"
---

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# **coolant vacuum refill kit**

**Worth a look**

Shows a sweet-spot price point ($50.72 avg), but soft demand (-21.0% this quarter) keeps it on the watch list.

Market size 58Growth 14Conversion 22Competition 65Returns 46Price range 63Avg price 93Brand share 51Review moat 56Quality gap 67

**Avg price**

**Great****$50.72**

avg listing price — sweet spot $15–$100

**Quality gap**

**Good****4.3★**

avg incumbent rating — lower means beatable quality

**Competition**

**Good****46%**

top-5 click share — leaders hold, buyers still browse

**Price range**

**Good****$14.81–$150.45**

cheapest to priciest tracked listing — scored on the share inside $15–$100

**Market size**

**Good****$461K**

$461K/yr · 528K searches

**Review moat**

**Good****1,264.41**

avg incumbent reviews — the moat a new listing must climb

**Brand share**

**Good****75%**

top-5 brand share — brands hold most of the demand

**Returns**

**Okay****3.4%**

return rate — above 6% kills the launch gate

**Conversion**

**Bad****1.7%**

search→purchase rate — share of searches ending in a sale

**Growth**

**Bad****-21.0%**

90-day search growth — must beat 0% to launch

## **Competition**

The top 5 products take 46% of clicks — established leaders, but buyers still shop beyond them.

**Brands**

**17 **▼falling

**Sellers**

**64**

**Top-5 brand share**

**75%**

**Open market**

**20%**

- Orion Motor Tech33% - OEMTOOLS25% - UView6% - BILITOOLS6% - CXPRO5% - DAYUAN5%

## **Product shelf**

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

0%4%$18K8%$37K12%$55K16%$74K1101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 34 tracked products in this niche — three views at once, no toggling.

### **Top sellers**

by 90-day click share

[1![OEMTOOLS Coolant Vacuum Refill Kit Coolant Pressure Tester Kit 5 Adapter](https://m.media-amazon.com/images/I/41BPW4ZC8OL.jpg)**OEMTOOLS Coolant Vacuum Refill Kit Coolant Pressure Tester Kit 5 Adapter**OEMTOOLS**$93.11**4.4★2,361 rev](https://www.amazon.com/dp/B01BW39HJS) [2![Orion Motor Tech Coolant Vacuum Refill Kit 13pc Radiator Cooling System Tool Set with Conical Adapter 4 Round Adapters for Leak Detection Cooling Refill Vacuum Coolant Fill Kit with Hose Black](https://m.media-amazon.com/images/I/41Jva2a-k3L.jpg)**Orion Motor Tech Coolant Vacuum Refill Kit 13pc Radiator Cooling System Tool Set with Conical Adapter 4 Round Adapters for Leak Detection Cooling Refill Vacuum Coolant Fill Kit with Hose Black**Orion Motor Tech**$45.62**4.3★85 rev](https://www.amazon.com/dp/B0G7TGZCR3) [3![Orion Motor Tech Coolant Vacuum Refill Kit 13pc Radiator Cooling System Tool Set with Conical Adapter 4 Round Adapters for Leak Detection Cooling Refill Vacuum Coolant Fill Kit with Splashproof Hose](https://m.media-amazon.com/images/I/51yMK9xHhrL.jpg)**Orion Motor Tech Coolant Vacuum Refill Kit 13pc Radiator Cooling System Tool Set with Conical Adapter 4 Round Adapters for Leak Detection Cooling Refill Vacuum Coolant Fill Kit with Splashproof Hose**Orion Motor Tech**$46.77**4.3★85 rev](https://www.amazon.com/dp/B0FG33L47J) [4![Orion Motor Tech Coolant Pressure Tester Kit 33pc Master Coolant Vacuum Refill Kit with 23 Radiator Adapters Radiator Cooling System Pressure Tester Kit with Vacuum Pump Vacuum Purge & Refill Tool](https://m.media-amazon.com/images/I/51RxxfHAhZL.jpg)**Orion Motor Tech Coolant Pressure Tester Kit 33pc Master Coolant Vacuum Refill Kit with 23 Radiator Adapters Radiator Cooling System Pressure Tester Kit with Vacuum Pump Vacuum Purge & Refill Tool**Orion Motor Tech**$72.64**4.3★650 rev](https://www.amazon.com/dp/B0D3F6M7RC) [5![UView 550000 Airlift Cooling System Leak Checker and Airlock Purge Tool Kit OEM Approved Universal Connectors Minimum 90 PSI/60 Bar Used for Leak Detection Purging Airlocks A/C System Refill](https://m.media-amazon.com/images/I/41preYRSZKL.jpg)**UView 550000 Airlift Cooling System Leak Checker and Airlock Purge Tool Kit OEM Approved Universal Connectors Minimum 90 PSI/60 Bar Used for Leak Detection Purging Airlocks A/C System Refill**UView**$150.45**4.7★1,740 rev](https://www.amazon.com/dp/B0002SRH5G)

**~~View all top sellers →~~**

### **Newest**

by launch date

[![DISEN 33Pcs Coolant Pressure Tester Kit Master Coolant Vacuum Refill Kit with 23 Radiator Adapters Radiator Cooling System Pressure Tester & Vacuum Purge Tool for Cars Trucks SUVs](https://m.media-amazon.com/images/I/51BokDFVB3L.jpg)**DISEN 33Pcs Coolant Pressure Tester Kit Master Coolant Vacuum Refill Kit with 23 Radiator Adapters Radiator Cooling System Pressure Tester & Vacuum Purge Tool for Cars Trucks SUVs**DISEN**$69.96**37 rev5mo ago](https://www.amazon.com/dp/B0GKLWBMJ6) [![Alltooetools Coolant Vacuum Refill Kit Radiator Cooling System Vacuum Refilling Gauge Tool with 32mm 35mm 40mm 45mm Apdapters](https://m.media-amazon.com/images/I/41lw-f+yVSL.jpg)**Alltooetools Coolant Vacuum Refill Kit Radiator Cooling System Vacuum Refilling Gauge Tool with 32mm 35mm 40mm 45mm Apdapters**Alltooetools**$27.83**2 rev5mo ago](https://www.amazon.com/dp/B0GJ6KRWXF) [![Orion Motor Tech Coolant Vacuum Refill Kit 13pc Radiator Cooling System Tool Set with Conical Adapter 4 Round Adapters for Leak Detection Cooling Refill Vacuum Coolant Fill Kit with Hose Black](https://m.media-amazon.com/images/I/41Jva2a-k3L.jpg)**Orion Motor Tech Coolant Vacuum Refill Kit 13pc Radiator Cooling System Tool Set with Conical Adapter 4 Round Adapters for Leak Detection Cooling Refill Vacuum Coolant Fill Kit with Hose Black**Orion Motor Tech**$45.62**85 rev6mo ago](https://www.amazon.com/dp/B0G7TGZCR3) [![BELEY Coolant Vacuum Refill Kit 9pc Auto Radiator Cooling System Tool Set with Conical Adapter 5 Round Adapters for Leak Detection Cooling Refill Vacuum Coolant Fill Kit with Splashproof Hose](https://m.media-amazon.com/images/I/41qZqWsPvhL.jpg)**BELEY Coolant Vacuum Refill Kit 9pc Auto Radiator Cooling System Tool Set with Conical Adapter 5 Round Adapters for Leak Detection Cooling Refill Vacuum Coolant Fill Kit with Splashproof Hose**BELEY**$45.61**13 rev8mo ago](https://www.amazon.com/dp/B0FZJJ2Q2B) [![VEVOR Radiator Vacuum Refill Kit Automotives Cooling System Vacuum & Purge Fill Tool with Gauge Portable Radiator Coolant Filling Kit with Toolbox Universal Fit for Most Cars Vans SUVs and Trucks](https://m.media-amazon.com/images/I/51DGRhpKb4L.jpg)**VEVOR Radiator Vacuum Refill Kit Automotives Cooling System Vacuum & Purge Fill Tool with Gauge Portable Radiator Coolant Filling Kit with Toolbox Universal Fit for Most Cars Vans SUVs and Trucks**VEVOR**$28.81**47 rev8mo ago](https://www.amazon.com/dp/B0FXJZ1FDJ)

**~~View all new products →~~**

### **Trending**

90-day click momentum

[![Alltooetools Coolant Vacuum Refill Kit Radiator Cooling System Vacuum Refilling Gauge Tool with 32mm 35mm 40mm 45mm Apdapters](https://m.media-amazon.com/images/I/41lw-f+yVSL.jpg)**Alltooetools Coolant Vacuum Refill Kit Radiator Cooling System Vacuum Refilling Gauge Tool with 32mm 35mm 40mm 45mm Apdapters**Alltooetools**$27.83**4.5★**▲ 286%**](https://www.amazon.com/dp/B0GJ6KRWXF) [![DISEN 33Pcs Coolant Pressure Tester Kit Master Coolant Vacuum Refill Kit with 23 Radiator Adapters Radiator Cooling System Pressure Tester & Vacuum Purge Tool for Cars Trucks SUVs](https://m.media-amazon.com/images/I/51BokDFVB3L.jpg)**DISEN 33Pcs Coolant Pressure Tester Kit Master Coolant Vacuum Refill Kit with 23 Radiator Adapters Radiator Cooling System Pressure Tester & Vacuum Purge Tool for Cars Trucks SUVs**DISEN**$69.96**4.0★**▲ 282%**](https://www.amazon.com/dp/B0GKLWBMJ6) [![Orion Motor Tech Coolant Vacuum Refill Kit 13pc Radiator Cooling System Tool Set with Conical Adapter 4 Round Adapters for Leak Detection Cooling Refill Vacuum Coolant Fill Kit with Hose Black](https://m.media-amazon.com/images/I/41Jva2a-k3L.jpg)**Orion Motor Tech Coolant Vacuum Refill Kit 13pc Radiator Cooling System Tool Set with Conical Adapter 4 Round Adapters for Leak Detection Cooling Refill Vacuum Coolant Fill Kit with Hose Black**Orion Motor Tech**$45.62**4.3★**▲ 275%**](https://www.amazon.com/dp/B0G7TGZCR3) [![BILITOOLS 10-Piece Coolant Vacuum Refill Kit Quick Airlift Coolant Refill Tool for Most Vehicles](https://m.media-amazon.com/images/I/41w0IUgpbZL.jpg)**BILITOOLS 10-Piece Coolant Vacuum Refill Kit Quick Airlift Coolant Refill Tool for Most Vehicles**BILITOOLS**$46.78**4.0★**▲ 218%**](https://www.amazon.com/dp/B0FNWVR5BC) [![VEVOR Radiator Vacuum Refill Kit Automotives Cooling System Vacuum & Purge Fill Tool with Gauge Portable Radiator Coolant Filling Kit with Toolbox Universal Fit for Most Cars Vans SUVs and Trucks](https://m.media-amazon.com/images/I/51DGRhpKb4L.jpg)**VEVOR Radiator Vacuum Refill Kit Automotives Cooling System Vacuum & Purge Fill Tool with Gauge Portable Radiator Coolant Filling Kit with Toolbox Universal Fit for Most Cars Vans SUVs and Trucks**VEVOR**$28.81**4.3★**▲ 87%**](https://www.amazon.com/dp/B0FXJZ1FDJ)

**~~View all trending →~~**

## **Demand & seasonality**

Weekly Amazon search volume, last 104 weeks — -21.0% search growth over the last 90 days.

9K7KPrime Day '24Holiday '24Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay

Peak months: Jul · busiest ÷ quietest = 1.9×

## **Reviews**

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

### **What buyers love **

**Quality-Overall**20%

*“nice quality set”*

**Ease Of Use**10%

*“Pretty handy”*

**Value For Money**9%

*“Great Value”*

**Coolant**9%

*“worked well for my coolant change”*

**Efficiency**7%

*“Works ok”*

**Advertised Vs Actual Product**7%

*“As advertised”*

**Leak-Proof**6%

*“Did not leak”*

**Size-Overall**6%

*“Excellent fit”*

**Durability**2%

*“Worked very well, durable and easy storage”*

**Pressure**2%

*“it held pressure consistently during testing”*

### **What buyers complain about **

**Quality-Overall**13%

*“Cheap quality”*

**Leak-Proof**12%

*“leaking”*

**Compatibility-Overall**12%

*“adapters that were not compatible”*

**Size-Overall**7%

*“Not large enough”*

**Coolant**6%

*“leaked coolant everywhere”*

**Pressure**5%

*“Does not pressurize system”*

**Functionality-Overall**4%

*“Did not work as stated”*

**Instructions/User Manual/Troubleshooting**4%

*“Terrible Instructions”*

**Value For Money**3%

*“Not even worth any money”*

**Advertised Vs Actual Product**2%

*“Was not advertised as such though”*

### **Top return reasons **

**Size-Overall**20%

**Compatibility-Overall**18%

**Coolant**13%

**Defective Material/Parts**8%

**Functionality-Overall**7%

**Leak-Proof**6%

**Pressure**5%

**Advertised Vs Actual Product**4%

**Value For Money**4%

**Add-Ons/Attachments**2%