---
title: "Ac Oil Injector — $187K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/automotive/ac-oil-injector"
last_updated: "2026-08-09T17:27:21.242Z"
locale: en
meta:
description: "Niche score 66/100 · $187K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 66/100 · $187K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Ac Oil Injector — $187K/yr Amazon US Niche (2026) - Flapen"
---
# **ac oil injector**
**Worth a look**
Shows demand growing +206.2% this quarter, but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 37Growth 98Conversion 67Competition 45Returns 52Price range 77Avg price 95Brand share 64Review moat 94Quality gap 73
**Growth**
**Incredible****+206.2%**
90-day search growth — must beat 0% to launch
**Avg price**
**Incredible****$39.06**
avg listing price — sweet spot $15–$100
**Review moat**
**Great****129.56**
avg incumbent reviews — the moat a new listing must climb
**Price range**
**Great****$9.86–$118.68**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Quality gap**
**Good****4.3★**
avg incumbent rating — lower means beatable quality
**Conversion**
**Good****6.1%**
search→purchase rate — share of searches ending in a sale
**Brand share**
**Good****67%**
top-5 brand share — brands hold most of the demand
**Returns**
**Good****2.9%**
return rate — above 5% kills the launch gate
**Competition**
**Okay****58%**
top-5 click share — leaders hold, buyers still browse
**Market size**
**Okay****$187K**
$187K/yr · 79K searches
**Signals**[** Trending**](https://flapen.com/research/niches?market=us&signal=trending "Search growth > 100% (90d)") [** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500")
According to Flapen's Amazon United States niche tracking, ac oil injector is a $187K/yr Amazon United States market (79K searches/yr). The top 5 brands hold 67% of demand. Demand peaks in Apr–May–Jun–Jul–Aug. Verdict: Worth a look — 66/100.
Data updated Jul 11, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **ac oil injector market data**
- **Units sold / yr**
- **5K–6K**
- avg 100–250/product
- **Revenue / yr**
- **$195K–$234K**
- units × avg price
- **Conversion rate**
- **6.1%**
- **Avg BSR**
- **#338**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **92%**
- **Out of stock**
- **2.6%**
- **Avg brand age**
- **57 months**
- **Avg seller age**
- **205 days**
## **Competition & brand share**
The top 5 products take 58% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**18 **▼falling
**Sellers**
**54**
**Top-5 brand share**
**67%**
Top 20: 100%
**Top-5 click share**
**58%**
Top 20: 94%
**Open market**
**28%**
- GallopMax21% - Lichamp20% - X AUTOHAUX11% - Boltigen8% - gohantee7% - Tellegloww5%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +206.2% search growth over the last 90 days.
4K3KSpike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Apr, May, Jun, Jul, Aug · busiest ÷ quietest = 11.7×
[**Open Trend **](https://flapen.com/research/us/automotive/ac-oil-injector/trend)
## **Top ac oil injector search terms**
- **ac oil injector**18K/yr+167.7%5.9% conv. - **ac dye injector**16K/yr+284.3%5.1% conv. - **ac oil injector tool**6K/yr+438.0%5.4% conv. - **pag oil injector**5K/yr+166.1%8.4% conv. - **1234yf dye injector kit**3K/yr+348.4%5.9% conv. - **ac dye injector kit**4K/yr+155.8%4.7% conv. - **1234yf oil injector**4K/yr+90.5%5.9% conv. - **a/c dye injector kit**3K/yr+573.6%5.0% conv. - **r1234yf oil injector**3K/yr+145.5%6.4% conv. - **r134a dye injector**3K/yr+198.5%5.4% conv. [**All search terms **](https://flapen.com/research/us/automotive/ac-oil-injector/search-terms)
## **Top ac oil injector products on Amazon**
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%5%$9K10%$19K15%$28K20%$37K101001K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Lichamp AC Oil Injector R134A R1234YF Refrigerant A/C Dye Injector Kit with Adjustable Coupler and Oil Checkers**Lichamp**$42.43**4.3★402 rev](https://www.amazon.com/dp/B095PVLRL9) [2**GallopMax R1234YF & R134A AC Oil Dye Injector Kit with 2 Snap Quick Couplers 2 Oil Checkers 2oz Measuring Cup**GallopMax**$37.21**4.1★206 rev](https://www.amazon.com/dp/B0BVPLXQQ7) [3**X AUTOHAUX Oil and Dye Injectors Kit 30ml/1 Oz Hand Push Compressor Manual AC Oil Dye Injector with Quick Coupler 1/4 SAE Connector Car HVAC Compressor Oil Dye Injector Refrigerant Tool**X AUTOHAUX**$12.25**4.1★371 rev](https://www.amazon.com/dp/B0BPQSNKFY) [4**GallopMax R134A & R1234YF & R410A AC Oil Dye Injector Kit with R134A Quick Coupler R1234YF Quick Coupler R410A Adapter 2 Oil Checkers 2 oz Measuring Cup**GallopMax**$36.08**4.4★123 rev](https://www.amazon.com/dp/B0C9GV4226) [5**gohantee R12 AC Oil dye Injector for R134a R22 2oz A/C Air Conditioning Injection Tool Female 1/4 SAE x Male 1/4 SAE**gohantee**$19.01**4.6★237 rev](https://www.amazon.com/dp/B07T3RGQK4)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**E-VelionX Oil and Dye Injectors Kit 30ml/1 Oz Hand Push Compressor Manual AC Oil Dye Injector with Quick Coupler 1/4 SAE Connector Car HVAC Compressor Oil Dye Injector Refrigerant Tool**E-VelionX**$9.86**25 rev10mo ago](https://www.amazon.com/dp/B0FMY2FJ6S) [**Oil and Dye Injectors Kit Hand Push 30ml/1 Oz AC Compressor Manual Oil Dye Injector with 1/4 SAE Quick Coupler Car AC Compressor Tool**KiJoeErica**$10.69**51 rev11mo ago](https://www.amazon.com/dp/B0FFTL1818) [**R134A R1234YF AC Oil Injector Tool AC Dye Injector Kit with R134a Adjustable Quick Coupler R1234YF Quick Coupler and 2 Oil Checkers AC Oil Dye Injector Kit for R134A R1234YF Refrigerant System**CMOOD**$31.48**18 rev1y ago](https://www.amazon.com/dp/B0DWDW137W) [**HTOMT AC Oil Injector Kit A/C Dye Oil Injector with R1234YF Low Side Quick Coupler and QC12 Quick Coupler for R1234YF R134A R22 R12 Refrigerant System**HTOMT**$33.00**80 rev2y ago](https://www.amazon.com/dp/B0D6F8D4F2) [**Tellegloww Ac Oil Dye Injector Kit 1/4 SAE with SAE R134a Oil Injector R1234yf Low Side Quick Coupler R410a Split Adapter Compatible with R134a R22 R12 R1234yf Hand Push Compressor Manual 1oz/30ml**Tellegloww**$22.91**111 rev2y ago](https://www.amazon.com/dp/B0D3LP4B1S)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Aupoko AC Oil and Dye Injector with Snap Quick Coupler 2 OZ Hand Turn Screw-in Type Oil Fluorescent UV Dyes Refrigerant for R410A R134A R22 and R12 Charger with 1/4 SAE Connector**Aupoko**$27.89**4.4★**▲ 43%**](https://www.amazon.com/dp/B07F9K4XGX) [**AC Oil Injector for R1234yf R134a R410a AC Dye Injector with Shut-Off Valve 1234yf Dye Injector with Backflow Prevention Function AC Dye Oil Injector Kit with R1234yf R134a Couplers R410a Adapter**Boltigen**$38.58**4.8★**▲ 40%**](https://www.amazon.com/dp/B0CBRX14V1) [**gohantee R12 AC Oil dye Injector for R134a R22 2oz A/C Air Conditioning Injection Tool Female 1/4 SAE x Male 1/4 SAE**gohantee**$19.01**4.6★**▲ 37%**](https://www.amazon.com/dp/B07T3RGQK4) [**R134A R1234YF AC Oil Injector Tool AC Dye Injector Kit with R134a Adjustable Quick Coupler R1234YF Quick Coupler and 2 Oil Checkers AC Oil Dye Injector Kit for R134A R1234YF Refrigerant System**CMOOD**$31.48**3.6★**▲ 26%**](https://www.amazon.com/dp/B0DWDW137W) [**E-VelionX Oil and Dye Injectors Kit 30ml/1 Oz Hand Push Compressor Manual AC Oil Dye Injector with Quick Coupler 1/4 SAE Connector Car HVAC Compressor Oil Dye Injector Refrigerant Tool**E-VelionX**$9.86**3.7★**▲ 23%**](https://www.amazon.com/dp/B0FMY2FJ6S)
**~~View all trending →~~**
## **What buyers say about ac oil injector**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Value For Money**22%
*“Well worth it”*
**Advertised Vs Actual Product**16%
*“Product as advertised”*
**Quality-Overall**14%
*“The build quality is solid — it feels sturdy and well-made, not like those cheap, flimsy alternatives”*
**Ease Of Use**13%
*“Easy to use”*
**Efficiency**12%
*“Work as intended”*
**Leak-Proof**6%
*“No leakage”*
**Strength**5%
*“The build quality is solid — it feels sturdy and well-made, not like those cheap, flimsy alternatives”*
**Lubrication**2%
*“Works well for injecting oil into the ac system”*
**Compression**2%
*“makes keeping getting the right amount of oil to the compressor”*
**Measurement/Reading Accuracy**1%
*“The body features easy-to-read graduations”*
### **What buyers complain about **
**Durability**23%
*“Cracked on First Use”*
**Quality-Overall**19%
*“Bad quality”*
**Leak-Proof**9%
*“Leaked”*
**Material Quality**9%
*“Made from cheap plastic”*
**Functionality-Overall**5%
*“Doesnt work”*
**Compression**3%
*“It will destroy your ac compressor”*
**Color**3%
*“UV dye doesnt taste great”*
**Ease Of Use**3%
*“Very hard to push in system don't like”*
**Value For Money**3%
*“Save your money”*
**Defective Material/Parts**3%
*“broke the low side Schrader valve do not buy it will damage your system”*
### **Top return reasons **
**Defective Material/Parts**16%
**Functionality-Overall**15%
**Leak-Proof**12%
**Connectivity-Overall**7%
**Compatibility-Overall**6%
**Size-Overall**6%
**Quality-Overall**4%
**Add-Ons/Attachments**4%
**Advertised Vs Actual Product**4%
**Product Condition**3%
## **Common questions**
- **Is ac oil injector profitable to sell on Amazon United States?**
- The niche generates $187K/yr across 25 tracked products. 1 of 2 products launched in the last 360 days are still selling. 90-day search growth is +206.2%. Flapen's verdict: Worth a look (66/100).
- **How competitive is the ac oil injector niche?**
- 18 brands and 54 sellers compete. The top 5 products take 58% of clicks and top 5 brands hold 67% of demand.
- **What do buyers complain about in ac oil injector?**
- Top complaints mined from reviews: Durability, Quality-Overall, Leak-Proof. The return rate is 2.9%.
- **When does demand for ac oil injector peak?**
- Demand peaks in Apr–May–Jun–Jul–Aug; the busiest month runs 11.7× the quietest.
- **What does it cost to enter the ac oil injector niche?**
- Listings span $9.86–$118.68; the average listing price is $39.06 (sweet spot $15–$100). The average incumbent carries 130 reviews — the moat a new listing must climb.
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