ac oil injector
Worth a lookShows demand growing +206.2% this quarter, but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Growth
Incredible+206.2%90-day search growth — must beat 0% to launch
Avg price
Incredible$39.06avg listing price — sweet spot $15–$100
Review moat
Great129.56avg incumbent reviews — the moat a new listing must climb
Price range
Great$9.86–$118.68cheapest to priciest tracked listing — scored on the share inside $15–$100
Quality gap
Good4.3★avg incumbent rating — lower means beatable quality
Conversion
Good6.1%search→purchase rate — share of searches ending in a sale
Brand share
Good67%top-5 brand share — brands hold most of the demand
Returns
Good2.9%return rate — above 5% kills the launch gate
Competition
Okay58%top-5 click share — leaders hold, buyers still browse
Market size
Okay$187K$187K/yr · 79K searches
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
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.Peak months: Apr, May, Jun, Jul, Aug · busiest ÷ quietest = 11.7×
Top ac oil injector search terms
- ac oil injector18K/yr
- ac dye injector16K/yr
- ac oil injector tool6K/yr
- pag oil injector5K/yr
- 1234yf dye injector kit3K/yr
- ac dye injector kit4K/yr
- 1234yf oil injector4K/yr
- a/c dye injector kit3K/yr
- r1234yf oil injector3K/yr
- r134a dye injector3K/yr
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.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Lichamp AC Oil Injector R134A R1234YF Refrigerant A/C Dye Injector Kit with Adjustable Coupler and Oil Checkers
Lichamp$42.434.3★402 rev

GallopMax R1234YF & R134A AC Oil Dye Injector Kit with 2 Snap Quick Couplers 2 Oil Checkers 2oz Measuring Cup
GallopMax$37.214.1★206 rev

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$12.254.1★371 rev

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$36.084.4★123 rev

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$19.014.6★237 rev
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$9.8625 rev

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$10.6951 rev

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$31.4818 rev

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$33.0080 rev

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$22.91111 rev
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$27.894.4★

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$38.584.8★

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$19.014.6★

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$31.483.6★

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$9.863.7★
What buyers say about ac oil injector
What buyers praise and complain about, mined from review topics.What buyers love
“Well worth it”
“Product as advertised”
“The build quality is solid — it feels sturdy and well-made, not like those cheap, flimsy alternatives”
“Easy to use”
“Work as intended”
“No leakage”
“The build quality is solid — it feels sturdy and well-made, not like those cheap, flimsy alternatives”
“Works well for injecting oil into the ac system”
“makes keeping getting the right amount of oil to the compressor”
“The body features easy-to-read graduations”
What buyers complain about
“Cracked on First Use”
“Bad quality”
“Leaked”
“Made from cheap plastic”
“Doesnt work”
“It will destroy your ac compressor”
“UV dye doesnt taste great”
“Very hard to push in system don't like”
“Save your money”
“broke the low side Schrader valve do not buy it will damage your system”
Top return reasons
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.