Honda Gx390 Spark Plug
FailThe top 5 brands take 99% of clicks, so Honda Gx390 Spark Plug is a Fail.
- Flapen Score
- 44 / 100Ranks 5,081 of 7,287 Automotive niches · −5 vs the category median of 4944
- Market size
- $318K/yr158K searches / yr
- 90-day growth
- +2.3%search demand this quarter
- Competition
- 70%top-5 click share · 6 brands · 83 sellers
Flapen Score
Honda Gx390 Spark Plug against its category
The dotted line is the Automotive average. Past it, Honda Gx390 Spark Plug is stronger. Inside it, weaker.
Market
The Honda Gx390 Spark Plug market on Amazon at a glance
Shoppers on Amazon United States searched for Honda Gx390 Spark Plug 158K times last year and spent an estimated $318K. The top 5 brands take 99% of clicks. Demand peaks in Mar. Flapen scores it 44 out of 100, a Fail.
01 · Demand
An estimated 20.2% of those searches ended in a purchase.
Shoppers searched for this 158K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 20.2% of those searches ended in a purchase. Searches in the last 90 days moved +2.3% against the 90 days before. Searches, conversion and average price together put the market at an estimated $318K a year.
- Searches, last 12 months
- 158K
- Growth, 90 days vs prior 90
- +2.3%
- Conversion, latest week
- 20.2%
- Market size, estimated
- $318Ka year
- Peak month
- March2.1× the quietest month
- Top search term
- ngk bpr6es66K searches a year
02 · Price
A sale here is worth $9.97.
Listings sell for $9.97 on average, from $4.13 to $25.69. Amazon reports units sold in ranges. This niche sold 30K to 40K a year. The average listing sells 1,500 to 2,000 of them. At $9.97 that is $15K to $20K a year per listing.
- Average price
- $9.97under the $15 to $100 sweet spot
- Price range
- $4.13–$25.69
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 30K–40K
- Units per listing a year
- 1,500–2,000
- Revenue per listing a year
- $15K–$20K
- Returns
- 1.4%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is low.
64% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #104 within Ignition Parts. It carries 599 reviews at 4.72 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 64%
- Prime listings
- 100%
- Out of stock, average day
- 0.0%
- Average rank
- #104in Ignition Parts
- Average rating
- 4.72 starsAmazon United States average 4.42 stars
- Average reviews
- 599per listing
- Listings tracked
- 14
04 · Newcomers
0 of last year's 2 launches cleared the first-year sales bar.
2 products launched here in the last 12 months. 0 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 45 months on average, so the names here are settling in.
- Launched, last 12 months
- 2
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 45 months
Products
Top Honda Gx390 Spark Plug products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 11, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
New NGK Standard Spark Plug BPR6ES 7131 Set of 4 Spark Plugs
- Price
- $15.48
- Rating
- 4.8/5
- Reviews
- 621
- Age
- 9y ago

NGK (2 Pack) #7131 Spark Plug (2 Pack) # BDPR6ES-2pk
- Price
- $9.91
- Rating
- 4.7/5
- Reviews
- 150
- Age
- 12y ago

BPR6ES NGK Spark Plug for Honda Engines & Other Small Engines (One Spark Plug)
- Price
- $6.73
- Rating
- 4.8/5
- Reviews
- 1,845
- Age
- 11y ago

BPR6ES Spark Plug for NGK BPR6ES BP6ES Torch F6RTC MTD 951-10292 Honda 98079-56846 GX120 GX160 GX200 GX240 GX270 GX340 GX390 4 PACK
- Price
- $10.85
- Rating
- 4.5/5
- Reviews
- 125
- Age
- 1y ago

Honda 2 Pack Genuine 98079-56846 Spark Plug Fits NGK BPR6ES OEM
- Price
- $9.38
- Rating
- 4.8/5
- Reviews
- 963
- Age
- 10y ago
Trending
estimated 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
- Price
- $4.13
- Rating
- 4.5/5
- Reviews
- 10
- Age
- 5mo ago

Hipa BPR6ES Spark Plugs Compatible with NGK 7131 Torch F6RTC MTD 951-10292 751-10292 Honda 98079-56846 Engines & Other Small Engines (Pack of 4)
- Price
- $9.50
- Rating
- 5.0/5
- Reviews
- 7
- Age
- 8mo ago

98079-56846 (NGK BPR6ES) Honda Genuine OEM Spark Plug Honda & Other Small Engines
- Price
- $7.22
- Rating
- 4.6/5
- Reviews
- 131
- Age
- 11y ago

NGK (2 Pack) #7131 Spark Plug (2 Pack) # BDPR6ES-2pk
- Price
- $9.91
- Rating
- 4.7/5
- Reviews
- 150
- Age
- 12y ago

Honda 2 Pack Genuine 98079-56846 Spark Plug Fits NGK BPR6ES OEM
- Price
- $9.38
- Rating
- 4.8/5
- Reviews
- 963
- Age
- 10y ago
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
- Price
- $4.13
- Rating
- 4.5/5
- Reviews
- 10
- Age
- 5mo ago

Hipa BPR6ES Spark Plugs Compatible with NGK 7131 Torch F6RTC MTD 951-10292 751-10292 Honda 98079-56846 Engines & Other Small Engines (Pack of 4)
- Price
- $9.50
- Rating
- 5.0/5
- Reviews
- 7
- Age
- 8mo ago

BPR6ES Spark Plug for NGK BPR6ES BP6ES Torch F6RTC MTD 951-10292 Honda 98079-56846 GX120 GX160 GX200 GX240 GX270 GX340 GX390 4 PACK
- Price
- $10.85
- Rating
- 4.5/5
- Reviews
- 125
- Age
- 1y ago

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
- Price
- $6.01
- Rating
- 4.7/5
- Reviews
- 1,503
- Age
- 4y ago

New NGK Standard Spark Plug BPR6ES 7131 Set of 4 Spark Plugs
- Price
- $15.48
- Rating
- 4.8/5
- Reviews
- 621
- Age
- 9y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 70% of clicks. Leaders hold, but buyers still shop past them.
Brands
6 rising
Sellers
83
Est. top-5 brand share
99%
Top 20: 100%
Est. top-5 click share
70%
Top 20: 100%
Open market
0%
- NGK60%
- Honda17%
- Hipa10%
- Wetenex10%
- TORCH2%
- Yistiun1%
Demand
Honda Gx390 Spark Plug search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Mar · busiest ÷ quietest = 2.1×
Search terms
Top Honda Gx390 Spark Plug search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- ngk bpr6es66K/yr
- bpr6es spark plug29K/yr
- ngk bpr6es spark plug29K/yr
- bpr6es19K/yr
- honda gx390 spark plug3K/yr
- spark plug ngk bpr6es2K/yr
- honda gx160 spark plug2K/yr
- ngk bpr6es spark plug 2 pack2K/yr
- spark plug bpr6es2K/yr
- ngk - bpr6es2K/yr
Reviews and returns
What reviews say buyers love and hate about Honda Gx390 Spark Plug
We read the reviews and the return reasons for every product selling here.
“A little misleading”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
18 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Honda Gx390 Spark Plug questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









