rj19lm champion spark plug
Skip itBrand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Conversion
Incredible21.6%search→purchase rate — share of searches ending in a sale
Returns
Great1.4%return rate — above 6% kills the launch gate
Growth
Good+38.5%90-day search growth — must beat 0% to launch
Review moat
Good1,146.2avg incumbent reviews — the moat a new listing must climb
Price range
Good$6.38–$24.96cheapest to priciest tracked listing — scored on the share inside $15–$100
Market size
Okay$269K$269K/yr · 123K searches
Avg price
Okay$10.12avg listing price — sweet spot $15–$100
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
Competition
Bad88%top-5 click share — a locked-up shelf
Brand share
Bad100%top-5 brand share — brand-locked demand
Competition
The top 5 products capture 88% of clicks — a locked-up shelf that new listings rarely crack.Brands
5 flat
Sellers
67
Top-5 brand share
100%
Open market
0%
- Champion49%
- Briggs & Stratton26%
- Powtol13%
- Wetenex11%
- AMICAREP1%
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 10 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Champion RJ19LM - La buja del motor
Champion$6.484.8★4,160 rev
Briggs & Stratton 796112-2pk Spark Plug (2 Pack) Replaces J19LM RJ19LM 802592 5095K by Briggs & Stratton
Briggs & Stratton$7.324.7★1,555 rev
Powtol RJ19LM Spark Plug for Champion J19LM Brigs Straton 796112 802592 5095K (Pack of 2)
Powtol$7.034.6★536 rev
Champion J19LM-2pk Copper Plus Small Engine Spark Plug Stock # 861 (2 Pack)
Champion$8.314.8★1,296 rev
RJ19LM Spark Plug for Champion RJ19LM J19LM Brigs Straton 796112 796112S 802592 5095K NGK B2LM Spark Plug 2 PACK
Wetenex$8.114.7★172 rev
Newest
by launch date
RJ19LM Spark Plugs for Champion J19LM NGK B2LM Bosch WR11E0 Denso W9LMR-US MTD 759-3338 Briggs and Stratton 796112S 802592 5095K Pack of 4
AMICAREP$10.7517 rev
RJ19LM Spark Plug for Champion RJ19LM J19LM Brigs Straton 796112 796112S 802592 5095K NGK B2LM Spark Plug 2 PACK
Wetenex$8.11172 rev
Powtol RJ19LM Spark Plug for Champion J19LM Brigs Straton 796112 802592 5095K (Pack of 2)
Powtol$7.03536 rev
Champion RJ19LM Lawn & Garden Equipment Engine Spark Plug Genuine Original Equipment Manufacturer (OEM) Part
Champion$6.382,090 rev
Champion 2 Pack Genuine J19LM Spark Plug Copper Plus 861
Champion$8.7440 rev
Trending
90-day click momentumChampion RJ19LM Lawn & Garden Equipment Engine Spark Plug Genuine Original Equipment Manufacturer (OEM) Part
Champion$6.384.7★
Champion RJ19LM - La buja del motor
Champion$6.484.8★
Powtol RJ19LM Spark Plug for Champion J19LM Brigs Straton 796112 802592 5095K (Pack of 2)
Powtol$7.034.6★
Champion 2 Pack Genuine J19LM Spark Plug Copper Plus 861
Champion$8.744.8★
Briggs and Stratton 796112 Pack of 12 Spark Plugs (RJ19LM)
Briggs & Stratton$24.964.7★
Demand & seasonality
Weekly Amazon search volume, last 92 weeks — +38.5% search growth over the last 90 days.Peak months: Mar, Apr, May · busiest ÷ quietest = 2.4×
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“Excellent quality”
“As Advertised”
“Great fit”
“Great Plug”
“Good for the price”
“the build quality feels durable”
“Worked perfectly”
“Spark”
“Installation was straightforward”
“However, these looks amd feel solidly built so I'm sure they will work fine”
What buyers complain about
“Misleading”
“Cheap”
“After installing in my lawnmower it would not run”
“Did not fit my mower”
“Dont always get qualified products”
“NOT a huge deal”
“Yearly maintenance item that needs replacement”
“No cushion so plugs were banged up”