Is stihl primer bulb profitable to sell on Amazon United States?

The niche generates $40K/yr across 10 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is +127.5%. Flapen's verdict: Skip it (47/100).

How competitive is the stihl primer bulb niche?

10 brands and 12 sellers compete. The top 5 products take 84% of clicks and top 5 brands hold 84% of demand.

What do buyers complain about in stihl primer bulb?

Top complaints mined from reviews: Size-Overall, Functionality-Overall, Leak-Proof. The return rate is 0.5%.

What does it cost to enter the stihl primer bulb niche?

Listings span $5.38–$11.87; the average listing price is $8.10 (sweet spot $15–$100). The average incumbent carries 505 reviews — the moat a new listing must climb.

stihl primer bulb

Skip it

Prices mostly outside the sweet spot ($5.38–$11.87) — this niche doesn't clear our bar today.

Returns

Incredible0.5%

return rate — above 5% kills the launch gate

Growth

Incredible+127.5%

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

Conversion

Great10.4%

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

Review moat

Good504.5

avg incumbent reviews — the moat a new listing must climb

Brand share

Okay84%

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

Quality gap

Okay4.6★

avg incumbent rating — lower means beatable quality

Avg price

Bad$8.10

avg listing price — sweet spot $15–$100

Competition

Bad84%

top-5 click share — a locked-up shelf

Market size

Bad$40K

$40K/yr · 47K searches

Price range

Bad$5.38–$11.87

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

Signals Trending Low Review Barrier

According to Flapen's Amazon United States niche tracking, stihl primer bulb is a $40K/yr Amazon United States market (47K searches/yr). The top 5 brands hold 84% of demand. Verdict: Skip it — 47/100.

Data updated Jul 16, 2026 · scored weekly · How we score niches

stihl primer bulb market data

Units sold / yr: 4K–5K; avg 250–500/product
Revenue / yr: $32K–$41K; units × avg price
Conversion rate: 10.4%
Avg BSR: #345
Page quality: 0%
Prime: 100%
Sponsored: 100%
Out of stock: 0.0%
Avg brand age: 50 months
Avg seller age: 141 days

Competition & brand share

The top 5 products capture 84% of clicks — a locked-up shelf that new listings rarely crack.

Brands

10 falling

Sellers

Top-5 brand share

84%

Top 20: 100%

Top-5 click share

84%

Top 20: 100%

Open market

10%

KWEOTUGO31%
ZNBSIXP22%
Wanotine13%
LBJvsKD11%
Poweka8%
yhoparts5%
Open — no brand owns it (4 brands, 10%)

Top stihl primer bulb search terms

stihl primer bulb24K/yr +122.7%9.3% conv.
stihl primer bulb replacement11K/yr +96.2%9.1% conv.
primer bulb for stihl weedeater5K/yr +215.3%10.1% conv.
stihl weed eater primer bulb4K/yr +245.0%13.4% conv.
stihl fuel primer bulb3K/yr +79.1%7.3% conv.

All search terms

Top stihl primer bulb 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.

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

All 10 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

KWEOTUGO 6 pcs 4226 121 2700 Carburetor Primer Bulbs for Stihl Primer Bulb FS38 FS40C FS45 FS55 FS56RC FS70 FS80R FS90R FS91 FS100 FS111 FS130 White

KWEOTUGO$6.094.8★130 rev

ZNBSIXP 10 Pack Carburetor Primer Bulb for Stihl FS55 FS55R FS56RC FS70 FS80R FS85 FS90 FS90R FS91 FS91R FS110 FS111 FS130R FS40C FS45 BG55 BG56C BG65 BG75 BG85 BG86 0057003 0057004 String Trimmer

ZNBSIXP$6.024.8★142 rev

Wanotine 10-Packs Primer Bulb for Stihl FS90 FS90R FS55 FS55R FS56RC FS70R FS80R FS85 FS91R FS110 FS130 FS130R FS40 FS45 BG50 BG55 BG56 BG65 BG75 BG85 BG86 Replace 4226 121 2700

Wanotine$10.044.6★157 rev

LBJvsKD Replacement for Stihl Primer Bulb Fits Stihl Weed Eater Parts of FS38 FS40 FS40C FS45 FS46 FS50 FS55 FS55R FS56RC FS70 FS85 FS90 FS91R Weedeater Models (5PC) 4226 121 2700

LBJvsKD$6.104.8★34 rev

Poweka 5 Pack 4226 121 2700 Carburetor Primer Bulb Compatible with S-tihl FS38 FS40 FS40C FS45 FS46 FS55 FS56RC FS70 FS80R FS90R FS91 FS100 FS111 FS130 String Trimmer for Zama 0057003 0057004

Poweka$6.084.6★2,701 rev

Newest

by launch date

KimiClipigx 2 Pack 1143 350 6200 Fuel Pump Primer Bulb Replacement for Stihl MS231 MS231C MS251 MS251C 1143 350 6200 1143-350-6200

KimiClipigx$11.8710 rev

8mo ago

LBJvsKD Replacement for Stihl Primer Bulb Fits Stihl Weed Eater Parts of FS38 FS40 FS40C FS45 FS46 FS50 FS55 FS55R FS56RC FS70 FS85 FS90 FS91R Weedeater Models (5PC) 4226 121 2700

LBJvsKD$6.1034 rev

1y ago

ZNBSIXP 10 Pack Carburetor Primer Bulb for Stihl FS55 FS55R FS56RC FS70 FS80R FS85 FS90 FS90R FS91 FS91R FS110 FS111 FS130R FS40C FS45 BG55 BG56C BG65 BG75 BG85 BG86 0057003 0057004 String Trimmer

ZNBSIXP$6.02142 rev

1y ago

KWEOTUGO 6 pcs 4226 121 2700 Carburetor Primer Bulbs for Stihl Primer Bulb FS38 FS40C FS45 FS55 FS56RC FS70 FS80R FS90R FS91 FS100 FS111 FS130 White

KWEOTUGO$6.09130 rev

2y ago

yhoparts (12-Pack) Primer Bulb 4226 121 2700 for Stihl Trimmer FS55 FS55R FS56RC FS70 FS80R FS85 FS90 FS90R FS91 FS91R FS110 FS111 FS130R FS40C FS45 BG55 BG56C BG65 BG75 BG85 BG86 Weed Eater Parts

yhoparts$9.4358 rev

2y ago

What buyers say about stihl primer bulb

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

What buyers love

Size-Overall39%

“Exact Fit”

Value For Money15%

“Good price”

Quality-Overall9%

“No complaints”

Advertised Vs Actual Product9%

“Did the job perfectly”

Assembly/Installation4%

“Disassembling was easy”

Blower4%

“Perfect fit on MY BR-350 Back Pack Blower Will Buy Again”

Cutting/Trimming3%

“Perfect fit,got my stihl trimmer running great”

Leak-Proof3%

“Stop the leak”

Ease Of Use3%

“Easy”

Maintenance And Repair2%

“4 screws quick change”

What buyers complain about

Size-Overall31%

“Its definitely a tight fit”

Functionality-Overall20%

“Returned did not work for me”

Leak-Proof6%

“developed a leak”

Heating5%

“Shed gets hot in the sun”

Pressure5%

“Not sure if that pressure buildup also cracked the old primer bulb”

Grip3%

“couldn't get a grip”

Top return reasons

Size-Overall83%

Advertised Vs Actual Product5%

Defective Material/Parts5%

Value For Money2%

Compatibility-Overall2%

Functionality-Overall1%

Adhesion/Stickiness1%

Quality-Overall1%

Motor Issues1%

Maintenance And Repair1%

Common questions

Is stihl primer bulb profitable to sell on Amazon United States?: The niche generates $40K/yr across 10 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is +127.5%. Flapen's verdict: Skip it (47/100).
How competitive is the stihl primer bulb niche?: 10 brands and 12 sellers compete. The top 5 products take 84% of clicks and top 5 brands hold 84% of demand.
What do buyers complain about in stihl primer bulb?: Top complaints mined from reviews: Size-Overall, Functionality-Overall, Leak-Proof. The return rate is 0.5%.
What does it cost to enter the stihl primer bulb niche?: Listings span $5.38–$11.87; the average listing price is $8.10 (sweet spot $15–$100). The average incumbent carries 505 reviews — the moat a new listing must climb.