chevy 350 spark plugs
Skip itA concentrated shelf (top 5 take 100% of clicks) — this niche doesn't clear our bar today.
Avg price
Great$21.67avg listing price — sweet spot $15–$100
Conversion
Great9.4%search→purchase rate — share of searches ending in a sale
Returns
Good2.1%return rate — above 5% kills the launch gate
Review moat
Good788.25avg incumbent reviews — the moat a new listing must climb
Growth
Good+36.2%90-day search growth — must beat 0% to launch
Price range
Good$2.54–$30.02cheapest to priciest tracked listing — scored on the share inside $15–$100
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
Market size
Bad$25K$25K/yr · 12K searches
Competition
Bad100%top-5 click share — a locked-up shelf
Brand share
Bad100%top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, chevy 350 spark plugs is a $25K/yr Amazon United States market (12K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Apr–May. Verdict: Skip it — 38/100.
Data updated Jul 11, 2026 · scored weekly · How we score niches
chevy 350 spark plugs market data
- Units sold / yr
- 3K–4K
- avg 750–1,000/product
- Revenue / yr
- $65K–$87K
- units × avg price
- Conversion rate
- 9.4%
- Avg BSR
- #317
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 100%
- Out of stock
- 0.0%
- Avg brand age
- 71 months
- Avg seller age
- 174 days
Competition & brand share
The top 5 products capture 100% of clicks — a locked-up shelf that new listings rarely crack.Brands
2 falling
Sellers
30
Top-5 brand share
100%
Top 20: 100%
Top-5 click share
100%
Top 20: 100%
Open market
0%
- 1A Auto51%
- ACDelco49%
Demand & seasonality
Weekly Amazon search volume, last 53 weeks — +36.2% search growth over the last 90 days.Peak months: Apr, May · busiest ÷ quietest = 2.3×
Top chevy 350 spark plugs search terms
- r45ts spark plugs set of 85K/yr
- r45ts spark plug4K/yr
- r45ts3K/yr
Top chevy 350 spark plugs 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 4 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Newest
by launch dateWhat buyers say about chevy 350 spark plugs
What buyers praise and complain about, mined from review topics.What buyers love
“As advertised”
“Good plugs”
“Good fit”
“They are cheaper than autozone”
“excellent quality replacement”
“Installation was straightforward, and after installing them my Chevy K10 started easily, idled smoothly, and ran great”
Top return reasons
Common questions
- Is chevy 350 spark plugs profitable to sell on Amazon United States?
- The niche generates $25K/yr across 4 tracked products. 90-day search growth is +36.2%. Flapen's verdict: Skip it (38/100).
- How competitive is the chevy 350 spark plugs niche?
- 2 brands and 30 sellers compete. The top 5 products take 100% of clicks and top 5 brands hold 100% of demand.
- When does demand for chevy 350 spark plugs peak?
- Demand peaks in Apr–May; the busiest month runs 2.3× the quietest.
- What does it cost to enter the chevy 350 spark plugs niche?
- Listings span $2.54–$30.02; the average listing price is $21.67 (sweet spot $15–$100). The average incumbent carries 788 reviews — the moat a new listing must climb.