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Primer Bulb

Pass

Primer Bulb scores 65 out of 100, a Pass. Shoppers spend an estimated $144K a year here, search demand grew +70.0% this quarter, and an estimated 1.0% of orders come back.

Flapen Score
65
65 / 100
Top 16% of 8,839 Patio, Lawn & Garden niches · +9 vs the category median of 56
Market size
$144K/yr199K searches / yr
90-day growth
+70.0%search demand this quarter
Competition
37%top-5 click share · 27 brands · 90 sellers

Flapen Score

Primer Bulb against its category

The dotted line is the Patio, Lawn & Garden average. Past it, Primer Bulb is stronger. Inside it, weaker.

65Pass
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The Primer Bulb market on Amazon at a glance

Shoppers on Amazon United States searched for Primer Bulb 199K times last year and spent an estimated $144K. The top 5 brands take 51% of clicks. Demand peaks in Apr–May–Jun–Jul. Flapen scores it 65 out of 100, a Pass.

01 · Demand

An estimated 8.3% of those searches ended in a purchase.

Shoppers searched for this 199K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 8.3% of those searches ended in a purchase. Searches in the last 90 days moved +70.0% against the 90 days before. Searches, conversion and average price together put the market at an estimated $144K a year.

Searches, last 12 months
199K
Growth, 90 days vs prior 90
+70.0%
Conversion, latest week
8.3%
Market size, estimated
$144Ka year
Peak month
May2.8× the quietest month
Top search term
primer bulb67K searches a year

02 · Price

A sale here is worth $8.78.

Listings sell for $8.78 on average, from $4.09 to $22.42. Amazon reports units sold in ranges. This niche sold 15K to 20K a year. The average listing sells 250 to 500 of them. At $8.78 that is $2K to $4K a year per listing.

Average price
$8.78under the $15 to $100 sweet spot
Price range
$4.09–$22.42
Amazon United States median price
$24.38across 115,062 niches
Units sold a year
15K–20K
Units per listing a year
250–500
Revenue per listing a year
$2K–$4K
Returns
1.0%of orders · Amazon United States median 2.1%

03 · Entry bar

The bar here is ads.

96% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 1.3% of listings are out of stock. The average listing ranks #457 within String Trimmer Parts & Accessories. It carries 524 reviews at 4.54 stars, so a new listing needs social proof before a better product.

Sponsored listings
96%
Prime listings
100%
Out of stock, average day
1.3%
Average rank
#457in String Trimmer Parts & Accessories
Average rating
4.54 starsAmazon United States average 4.42 stars
Average reviews
524per listing
Listings tracked
45

04 · Newcomers

2 of last year's 6 launches cleared the first-year sales bar.

6 products launched here in the last 12 months. 2 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 47 months on average, so the names here are settling in.

Launched, last 12 months
6
Successful launches
2Amazon's first-year sales bar
Average brand age
47 months

Products

Top Primer Bulb products & what they sell for

Every tracked product: its share of the shelf, its reviews, and its price.

Sign in to see the products

The products selling in this niche are for signed-in readers. Every market figure above stays open to everyone.

Competition

Competition: brands, sellers & click share

The top 5 products take only 37% of clicks. An open shelf where new products get seen.

Brands

27 rising

Sellers

90

Top-5 brand share

51%

Top 20: 95%

Top-5 click share

37%

Top 20: 78%

Open market

43%

  • Brand 115%
  • Brand 211%
  • Brand 39%
  • Brand 48%
  • Brand 57%
  • Brand 67%

Demand

Primer Bulb search demand

Weekly searches over the year, seasonality beneath. Pick a range.

6K4KSpike '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Apr, May, Jun, Jul · busiest ÷ quietest = 2.8×

Search terms

Top Primer Bulb search terms shoppers use

The exact words shoppers type, with yearly volume, growth, and conversion.

  • primer bulb67K/yr
  • primer bulbs for small engines42K/yr
  • fuel primer bulb13K/yr
  • weedeater primer bulb9K/yr
  • primer bulb for weedeater9K/yr
  • primer bulbs8K/yr
  • weed eater primer bulb6K/yr
  • small engine primer bulb6K/yr
  • fuel line primer bulb5K/yr
  • carburetor primer bulb4K/yr

Reviews and returns

What reviews say buyers love and hate about Primer Bulb

We read the reviews and the return reasons for every product selling here.

23%of positive reviews mention “Size-Overall”
19%of negative reviews mention “Size-Overall”
1.0%of orders come back
“TOO SMALL”
A buyer, on “Size-Overall”19% of negative reviews mention the same topic

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.

17 topics

NegativePositive

FAQ

Common Primer Bulb questions

Answered from the same tracked data.