cmr7h spark plug
Skip itA small market ($87K/yr) — this niche doesn't clear our bar today.
Conversion
Incredible19.2%search→purchase rate — share of searches ending in a sale
Returns
Great1.2%return rate — above 6% kills the launch gate
Review moat
Great194.54avg incumbent reviews — the moat a new listing must climb
Price range
Good$4.01–$45.97cheapest to priciest tracked listing — scored on the share inside $15–$100
Avg price
Good$13.18avg listing price — sweet spot $15–$100
Growth
Okay+10.2%90-day search growth — must beat 0% to launch
Quality gap
Bad4.6★avg incumbent rating — lower means beatable quality
Competition
Bad73%top-5 click share — a locked-up shelf
Market size
Bad$87K$87K/yr · 34K searches
Brand share
Bad91%top-5 brand share — brand-locked demand
Competition
The top 5 products capture 73% of clicks — a locked-up shelf that new listings rarely crack.Brands
8 rising
Sellers
56
Top-5 brand share
91%
Open market
6%
- NGK67%
- Adefol12%
- Cynkpeg5%
- AZXX4%
- Atunee4%
- LhyBtm3%
- Open — no brand owns it (2 brands, 6%)
Product shelf
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 13 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
NGK Spark Plug CMR7H
NGK$8.574.8★362 rev
Outdoor Power Equipment NEW NGK SPARK PLUG CMR7H 3066 1656 2 PACK
NGK$13.394.8★120 rev
NGK 6 Pack of Replacement Spark Plugs # CMR7H-6PK
NGK$25.684.8★405 rev
10 Pack CMR7H Spark Plugs Spark Plug for Shindaiwa 3699-91867 Red Max 369991867 506615101 544260901 Sparkplug for Husqvarna 581362301 Stihl Redmax Blowers Brushcutters Trimmers Chain Saws
Adefol$13.974.4★63 rev
NGK CMR7H Standard Spark Plug
NGK$5.744.7★1,432 rev
Newest
by launch date
Yistiun CMR7H 3066 1656 Spark Plugs for Shindaiwa 3699-91867 for Red Max 369991867 506615101 544260901 for Husqvarna 581362301 for Stihl for Redmax Blowers Brushcutters Trimmers Chain Saws
Yistiun$4.012 rev
581362301 CMR7H Spark Plugs for Shindaiwa 3699-91867 Red Max 506615101 544260901 Champion 965/RZ7C RZ7CT10 Brisk TR14C TR14S Autolite 4194 Tanaka 018-16005-20 Torch AC7R
Moleyaso$8.967 rev
AZXX CMR7H Spark Plug 2 Pack for NGK CMR7H Spark Plug Fit for Champion RZ7C RZ7CT10 for Husqvarna 506615101 544260901 Redmax 369991867 Leaf Blower Shindaiwa Trimmer Fit for Stihl Chainsaw
AZXX$8.2711 rev
Cynkpeg 4PCS CMR7H Spark Plug for Husqvarna 506615101 544260901 Spark Plug Replace for Champion RZ7C NGK Redmax 369991867 Shindaiwa 3699-91867 Brushcutters Trimmer Chainsaws
Cynkpeg$9.598 rev
CMR7H Spark Plugs Replacement for Shindaiwa 3699-91867 Red Max 369991867 506615101 544260901 1 Pack Spark plug for Husqvarna 581362301 Stihl Redmax Blowers Brushcutters Trimmers Chain Saws
Adefol$6.0629 rev
Trending
90-day click momentumYistiun CMR7H 3066 1656 Spark Plugs for Shindaiwa 3699-91867 for Red Max 369991867 506615101 544260901 for Husqvarna 581362301 for Stihl for Redmax Blowers Brushcutters Trimmers Chain Saws
Yistiun$4.015.0★
581362301 CMR7H Spark Plugs for Shindaiwa 3699-91867 Red Max 506615101 544260901 Champion 965/RZ7C RZ7CT10 Brisk TR14C TR14S Autolite 4194 Tanaka 018-16005-20 Torch AC7R
Moleyaso$8.964.7★
Cynkpeg 4PCS CMR7H Spark Plug for Husqvarna 506615101 544260901 Spark Plug Replace for Champion RZ7C NGK Redmax 369991867 Shindaiwa 3699-91867 Brushcutters Trimmer Chainsaws
Cynkpeg$9.594.2★
NGK Genuine 10 Pack Spark Plugs Resistor for Lawn Mowers fits B&Q MC018 Beast Lawn 36FBM1 54FBM19 M36BDB M36FDB / 3066-10PK CMR7H
NGK$45.974.8★
NGK Spark Plug CMR7H
NGK$8.574.8★
Demand & seasonality
Weekly Amazon search volume, last 62 weeks — +10.2% search growth over the last 90 days.Peak months: Mar, Apr, Nov · busiest ÷ quietest = 2.3×
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“Great Plugs”
“Good value”
“I would recommend these replacements as they seem to be good quality”
“They are a perfect fit”
“Work as advertised”
“It was easy to install”
“solid value if you want to keep a small engine running smooth”
“they look to be made from high-quality material”
“Working great”
What buyers complain about
“Doesn't give a great spark”
“the foul out after a few uses”