f6rtc spark plug
Skip itSoft demand (-44.8% this quarter) — this niche doesn't clear our bar today.
Conversion
Incredible18.5%search→purchase rate — share of searches ending in a sale
Returns
Great1.6%return rate — above 6% kills the launch gate
Review moat
Good517.54avg incumbent reviews — the moat a new listing must climb
Price range
Good$4.13–$25.80cheapest to priciest tracked listing — scored on the share inside $15–$100
Avg price
Okay$9.68avg listing price — sweet spot $15–$100
Market size
Okay$129K$129K/yr · 72K searches
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
Competition
Bad78%top-5 click share — a locked-up shelf
Brand share
Bad94%top-5 brand share — brand-locked demand
Growth
Bad-44.8%90-day search growth — must beat 0% to launch
Competition
The top 5 products capture 78% of clicks — a locked-up shelf that new listings rarely crack.Brands
8 flat
Sellers
43
Top-5 brand share
94%
Open market
4%
- TORCH37%
- Champion25%
- Kizut20%
- Hipa7%
- YAMAKATO4%
- Stens2%
- Open — no brand owns it (2 brands, 4%)
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
TORCH F6RTC 131-039 Spark Plug Replace for NGK BPR6ES Spark Plug for Bosch WR6DC WR7DC Spark Plug for Champion RN9YC RN10YC Spark Plug for Denso W20EPR-U Spark Plug for MTD 951-10292/751-10292 OEM ea
TORCH$6.014.7★1,503 rev

Kizut F6RTC BPR6ES Spark Plug for MTD 951-10292 751-10292 Torch Cub Cadet Troy Bilt Lawn Mower Generator 2Pack
Kizut$8.464.6★859 rev

Champion Copper Plus 415 (RN9YC) Pack of 4 (UPC 037551441655) for 1966-2002 Nissan D21 and Nissan 720
Champion$11.744.4★47 rev

HIPA BPR6ES Spark Plug for Torch F6RTC F6TC Honda 98079-56846 Champion RN9YC MTD 951-10292 751-10292 (Set of 2)
Hipa$7.644.7★665 rev

YAMAKATO Spark Plug for NGK BPR6ES BP6ES TORCH F6RTC F6TC Bosch WR6DC Champion RN9YC for Honda Gx160 Gx200 GX 270 Gx390 Predator 212 Champion Generac Generator
YAMAKATO$9.994.6★448 rev
Newest
by launch date
Yistiun BPR6ES Spark Plug for NGK 7131 for Torch F6RTC F6TC MTD 951-10292 951-10292A 751-10292 for Honda 98079-56846 for Champion RN9YC RN10YC GX120 GX160 GX200 GX240 GX270 GX340 GX390
Yistiun$4.1310 rev

YGQ Spark Plug fit for TORCH F6RTC F6TC NGK BPR6ES BP6ES Champion RN9YC Bosch WR6DC Honda GX160 GX270 GX390 Predator 212 Champion Generac Generator
YGQ$9.7694 rev

YAMAKATO Spark Plug for NGK BPR6ES BP6ES TORCH F6RTC F6TC Bosch WR6DC Champion RN9YC for Honda Gx160 Gx200 GX 270 Gx390 Predator 212 Champion Generac Generator
YAMAKATO$9.99448 rev

PK2 TORCH F6RTC Spark Plug Replace for NGK 7131 BPR6ES Spark Plug for Bosch WR6DC WR7DC Spark Plug for Champion RN9YC RN10YC Spark Plug for Denso W20EPR-U Spark Plug for MTD 951-10292/751-10292 OEM
TORCH$8.61611 rev

TORCH F6RTC 131-039 Spark Plug Replace for NGK BPR6ES Spark Plug for Bosch WR6DC WR7DC Spark Plug for Champion RN9YC RN10YC Spark Plug for Denso W20EPR-U Spark Plug for MTD 951-10292/751-10292 OEM ea
TORCH$6.011,503 rev
Trending
90-day click momentum
Yistiun BPR6ES Spark Plug for NGK 7131 for Torch F6RTC F6TC MTD 951-10292 951-10292A 751-10292 for Honda 98079-56846 for Champion RN9YC RN10YC GX120 GX160 GX200 GX240 GX270 GX340 GX390
Yistiun$4.134.5★

HIPA BPR6ES Spark Plug for Torch F6RTC F6TC Honda 98079-56846 Champion RN9YC MTD 951-10292 751-10292 (Set of 2)
Hipa$7.644.7★

Champion Copper Plus 415 (RN9YC) Pack of 4 (UPC 037551441655) for 1966-2002 Nissan D21 and Nissan 720
Champion$11.744.4★

Champion Spark Plug Replaces MTD 951-10292 & Torch F6RTC NGK BPR6ES & BPR6EY
Champion$7.264.7★

Champion RN9YC-8PK Copper Plus Small Engine Spark Plug # 415 (8 Pack)
Champion$25.804.8★
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -44.8% search growth over the last 90 days.Peak months: Jan, Apr, May · busiest ÷ quietest = 3.9×
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“Exact fit”
“Good quality”
“These spark plugs are the best”
“Worth the money”
“Works as intended”
“Works good”
“Runs clean and after a year of sitting the mower started first pull”
“Fits perfectly in my snow blower”
“Engine starts right up like new”
“Installation is straightforward”
What buyers complain about
“Didn't fit my spark plug cap”
“Not accurate description”
“it was hard to start”
“old gas kills a mower”
“Function poor”
“These are poor quality”
“These simply do not last very long”
“Not worth the money”