Ac Caps
MaybeSearch demand grew +160.6% this quarter. But shoppers spend an estimated $37K a year here, so Ac Caps is a Maybe.
- Flapen Score
- 64 / 100Top 4% of 7,287 Automotive niches · +15 vs the category median of 4964
- Market size
- $37K/yr57K searches / yr
- 90-day growth
- +160.6%search demand this quarter
- Competition
- 50%top-5 click share · 28 brands · 42 sellers
Flapen Score
Ac Caps against its category
The dotted line is the Automotive average. Past it, Ac Caps is stronger. Inside it, weaker.
Market
The Ac Caps market on Amazon at a glance
Shoppers on Amazon United States searched for Ac Caps 57K times last year and spent an estimated $37K. The top 5 brands take 51% of clicks. Demand peaks in Apr–May–Jun–Jul–Aug. Flapen scores it 64 out of 100, a Maybe.
01 · Demand
An estimated 7.8% of those searches ended in a purchase.
Shoppers searched for this 57K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 7.8% of those searches ended in a purchase. Searches in the last 90 days moved +160.6% against the 90 days before. Searches, conversion and average price together put the market at an estimated $37K a year.
- Searches, last 12 months
- 57K
- Growth, 90 days vs prior 90
- +160.6%
- Conversion, latest week
- 7.8%
- Market size, estimated
- $37Ka year
- Peak month
- July10.8× the quietest month
- Top search term
- ac low pressure port cap17K searches a year
02 · Price
A sale here is worth $8.26.
Listings sell for $8.26 on average, from $3.49 to $20.22. Amazon reports units sold in ranges. This niche sold 4K to 5K a year. The average listing sells 100 to 250 of them. At $8.26 that is $826 to $2K a year per listing.
- Average price
- $8.26under the $15 to $100 sweet spot
- Price range
- $3.49–$20.22
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 4K–5K
- Units per listing a year
- 100–250
- Revenue per listing a year
- $826–$2K
- Returns
- 2.4%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is low.
53% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 1.4% of listings are out of stock. The average listing ranks #523 within Engine Cooling & Climate Control. It carries 116 reviews at 3.95 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 53%
- Prime listings
- 100%
- Out of stock, average day
- 1.4%
- Average rank
- #523in Engine Cooling & Climate Control
- Average rating
- 3.95 starsAmazon United States average 4.42 stars
- Average reviews
- 116per listing
- Listings tracked
- 30
04 · Newcomers
3 of last year's 11 launches cleared the first-year sales bar.
11 products launched here in the last 12 months. 3 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 26 months on average, so a newcomer is not facing entrenched names.
- Launched, last 12 months
- 11
- Successful launches
- 3Amazon's first-year sales bar
- Average brand age
- 26 months
Products
Top Ac Caps 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
Dorman 54374 Air Conditioning Service Port Caps Compatible with Select Models 2 Pack
- Price
- $7.65
- Rating
- 4.5/5
- Reviews
- 638
- Age
- 3y ago

Ferianl 10PCS Air Conditioning Service AC System Charging Port Covers 0.51/13mm Low Pressure Cap 0.62/16mm High Pressure Cap A/C System Port Sealing Kit Universal for Most Cars (Black)
- Price
- $6.10
- Rating
- 3.7/5
- Reviews
- 47
- Age
- 1y ago

Car A/C Valve Core Caps Leakproof Air Conditioning System Seal Kit R134a Air Conditioning Repair System Charging Port Caps High Low Side Pressure Replacement Valve Caps (2PCS)
- Price
- $4.01
- Rating
- 3.8/5
- Reviews
- 364
- Age
- 1y ago

pinflaw 10 PCS R134a AC High & Low Pressure Port Caps AC Air Tool Dust Cap Car Air Conditioner Repair Parts Universal for Most Cars (Blue & Red)
- Price
- $7.28
- Rating
- 3.6/5
- Reviews
- 92
- Age
- 1y ago

2PCS Car Air Conditioner Valve Caps Dustproof Car AC Caps with Built-in Gasket Include High and Low Pressure Cap Professional Vehicle Accessories AC Valve Cap for R134A System (2PCS)
- Price
- $4.04
- Rating
- 4.0/5
- Reviews
- 88
- Age
- 1y ago
Trending
estimated 90-day click momentum
2PCS Car AC Low Pressure Port Cap & High Pressure Cap Brass Cars AC Valve Caps with Sealing Ring Seal-Tight & Dust-Proof ACS Service Port Caps Car Accessories for R134A System
- Price
- $9.55
- Rating
- 3.2/5
- Reviews
- 14
- Age
- 3mo ago

Brass A/C Valve Caps for R134a Systems 2 Pcs
- Price
- $12.10
- Rating
- 2.9/5
- Reviews
- 7
- Age
- 3mo ago

YoRise Car A/C Valve Core Caps R134a Air Conditioning Repair System Charging Port Caps Leakproof Seal Kit AC System High & Low Pressure Valve Cap Replacement Accessories (4PCS)
- Price
- $3.49
- Rating
- 3.0/5
- Reviews
- 6
- Age
- 9mo ago

GAOLAOSY Car A/C Valve Core Cap AC System Charging Port Seal Caps Leakproof High & Low Side Pressure Valve Covers Kit Car R134a Air Conditioning Refrigerant Port Repair Accessories (2PCS)
- Price
- $3.67
- Rating
- 3.9/5
- Reviews
- 25
- Age
- 12mo ago

Siptenk 100PCS Car AC Dust Caps R12 R134a High & Low Pressure Port Caps
- Price
- $19.83
- Rating
- 5.0/5
- Reviews
- 4
- Age
- 9mo ago
Newest
by launch date
Brass A/C Valve Caps for R134a Systems 2 Pcs
- Price
- $12.10
- Rating
- 2.9/5
- Reviews
- 7
- Age
- 3mo ago

2PCS Car AC Low Pressure Port Cap & High Pressure Cap Brass Cars AC Valve Caps with Sealing Ring Seal-Tight & Dust-Proof ACS Service Port Caps Car Accessories for R134A System
- Price
- $9.55
- Rating
- 3.2/5
- Reviews
- 14
- Age
- 3mo ago

2pcs Car AC Valve Caps for R134a System Brass High & Low Pressure Service Port Caps Leak Proof Covers for Subaru & Most Japanese Vehicles (Not Compatible with American Vehicles)
- Price
- $9.64
- Rating
- 3.5/5
- Reviews
- 22
- Age
- 7mo ago

Siptenk 100PCS Car AC Dust Caps R12 R134a High & Low Pressure Port Caps
- Price
- $19.83
- Rating
- 5.0/5
- Reviews
- 4
- Age
- 9mo ago

YoRise Car A/C Valve Core Caps R134a Air Conditioning Repair System Charging Port Caps Leakproof Seal Kit AC System High & Low Pressure Valve Cap Replacement Accessories (4PCS)
- Price
- $3.49
- Rating
- 3.0/5
- Reviews
- 6
- Age
- 9mo ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 50% of clicks. Leaders hold, but buyers still shop past them.
Brands
28 rising
Sellers
42
Est. top-5 brand share
51%
Top 20: 92%
Est. top-5 click share
50%
Top 20: 89%
Open market
43%
- Dorman16%
- Ferianl10%
- KITUREK10%
- Figpade9%
- pinflaw7%
- Dekiphox5%
Demand
Ac Caps search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Apr, May, Jun, Jul, Aug · busiest ÷ quietest = 10.8×
Search terms
Top Ac Caps search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- ac low pressure port cap17K/yr
- ac caps9K/yr
- ac service valve cap7K/yr
- low pressure ac cap3K/yr
- ac line caps4K/yr
- ac caps for high and low 134a3K/yr
- r134a cap3K/yr
- ac valve cap4K/yr
- ac cap4K/yr
- ac valve caps3K/yr
Reviews and returns
What reviews say buyers love and hate about Ac Caps
We read the reviews and the return reasons for every product selling here.
“Not for my car even though it was claimed to fit”
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.
18 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 Ac Caps 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









