Ngk Buhw-2 Marine Spark Plugs
MaybeSearch demand grew +198.7% this quarter. But shoppers spend an estimated $25K a year here, so Ngk Buhw-2 Marine Spark Plugs is a Maybe.
- Flapen Score
- 51 / 100Top 39% of 7,287 Automotive niches · +2 vs the category median of 4951
- Market size
- $25K/yr28K searches / yr
- 90-day growth
- +198.7%search demand this quarter
- Competition
- 76%top-5 click share · 7 brands · 42 sellers
Flapen Score
Ngk Buhw-2 Marine Spark Plugs against its category
The dotted line is the Automotive average. Past it, Ngk Buhw-2 Marine Spark Plugs is stronger. Inside it, weaker.
Market
The Ngk Buhw-2 Marine Spark Plugs market on Amazon at a glance
Shoppers on Amazon United States searched for Ngk Buhw-2 Marine Spark Plugs 28K times last year and spent an estimated $25K. The top 5 brands take 96% of clicks. Flapen scores it 51 out of 100, a Maybe.
01 · Demand
An estimated 4.5% of those searches ended in a purchase.
Shoppers searched for this 28K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 4.5% of those searches ended in a purchase. Searches in the last 90 days moved +198.7% against the 90 days before. Searches, conversion and average price together put the market at an estimated $25K a year.
- Searches, last 12 months
- 28K
- Growth, 90 days vs prior 90
- +198.7%
- Conversion, latest week
- 4.5%
- Market size, estimated
- $25Ka year
- Top search term
- ngk buhw-2 marine spark plugs7K searches a year
02 · Price
A sale here is worth $19.62.
Listings sell for $19.62 on average, from $5.75 to $49.87. Amazon reports units sold in ranges. This niche sold 3K to 4K a year. The average listing sells 100 to 250 of them. At $19.62 that is $2K to $5K a year per listing.
- Average price
- $19.62inside the $15 to $100 sweet spot
- Price range
- $5.75–$49.87
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 3K–4K
- Units per listing a year
- 100–250
- Revenue per listing a year
- $2K–$5K
- Returns
- 0.8%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is low.
31% of listings pay for placement with sponsored ads. 77% ship with Prime. On an average day, 12.5% of listings are out of stock. The average listing ranks #1,485 within Ignition Parts. It carries 92 reviews at 4.55 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 31%
- Prime listings
- 77%
- Out of stock, average day
- 12.5%
- Average rank
- #1,485in Ignition Parts
- Average rating
- 4.55 starsAmazon United States average 4.42 stars
- Average reviews
- 92per listing
- Listings tracked
- 13
04 · Newcomers
Brands here are settling in.
The brands on the shelf have sold for 52 months on average, so the names here are settling in.
- Launched, last 12 months
- 0
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 52 months
Products
Top Ngk Buhw-2 Marine Spark Plugs 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
TORCH E9Y-13 Marine Boat Spark Plug Replace for Autolite 2852 for NGK BUHW 2622 BU8H 6431 Spark Plug for Denso 6001 for Champion QL76V 1 PCS
- Price
- $6.94
- Rating
- 4.4/5
- Reviews
- 90
- Age
- 3y ago

Quicksilver 13686Q NGK BU8H Semi-Surface Discharge Spark Plug for Marine Outboard Engines 1 Pack
- Price
- $8.41
- Rating
- 4.6/5
- Reviews
- 341
- Age
- 11y ago

Genuine NGK BU8H Spark Plugs Non Resistor 6431 (6 Pack) Surface Discharge Type
- Price
- $31.47
- Rating
- 4.9/5
- Reviews
- 28
- Age
- 1y ago

NGK BU8H Spark Plug Marine Outboard Motor (4 Pack) Boxed
- Price
- $20.49
- Rating
- 3.6/5
- Reviews
- 10
- Age
- 11y ago

UStoolsupply Replacement for NGK Standard Spark Plug # BUHW-2
- Price
- $49.87
- Rating
- 4.8/5
- Reviews
- 4
- Age
- 5y ago
Trending
estimated 90-day click momentum
NGK BU8H Spark Plug Marine Outboard Motor (4 Pack) Boxed
- Price
- $20.49
- Rating
- 3.6/5
- Reviews
- 10
- Age
- 11y ago

TORCH E9Y-13 Marine Boat Spark Plug Replace for Autolite 2852 for NGK BUHW 2622 BU8H 6431 Spark Plug for Denso 6001 for Champion QL76V 4 PCS
- Price
- $16.87
- Rating
- 4.6/5
- Reviews
- 7
- Age
- 1y ago

UStoolsupply Replacement for NGK Standard Spark Plug # BUHW-2
- Price
- $49.87
- Rating
- 4.8/5
- Reviews
- 4
- Age
- 5y ago

Quicksilver 13686Q NGK BU8H Semi-Surface Discharge Spark Plug for Marine Outboard Engines 1 Pack
- Price
- $8.41
- Rating
- 4.6/5
- Reviews
- 341
- Age
- 11y ago

Genuine NGK BU8H Spark Plugs Non Resistor 6431 (6 Pack) Surface Discharge Type
- Price
- $31.47
- Rating
- 4.9/5
- Reviews
- 28
- Age
- 1y ago
Newest
by launch date
TORCH E9Y-13 Marine Boat Spark Plug Replace for Autolite 2852 for NGK BUHW 2622 BU8H 6431 Spark Plug for Denso 6001 for Champion QL76V 4 PCS
- Price
- $16.87
- Rating
- 4.6/5
- Reviews
- 7
- Age
- 1y ago

TORCH E9Y-13 Marine Boat Spark Plug Replace for Autolite 2852 for NGK BUHW 2622 BU8H 6431 Spark Plug for Denso 6001 for Champion QL76V 2 PCS
- Price
- $12.06
- Rating
- 4.5/5
- Reviews
- 70
- Age
- 1y ago

Genuine NGK BU8H Spark Plugs Non Resistor 6431 (6 Pack) Surface Discharge Type
- Price
- $31.47
- Rating
- 4.9/5
- Reviews
- 28
- Age
- 1y ago

Generic (6x) BU8H (6431) Non-Resistor Spark Plug Pre-Gapped Compatible With Mercury & Mariner BU8H-6PK-01
- Price
- $29.41
- Rating
- 5.0/5
- Reviews
- 10
- Age
- 2y ago

TORCH E9Y-13 Marine Boat Spark Plug Replace for Autolite 2852 for NGK BUHW 2622 BU8H 6431 Spark Plug for Denso 6001 for Champion QL76V 1 PCS
- Price
- $6.94
- Rating
- 4.4/5
- Reviews
- 90
- Age
- 3y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 76% of clicks. A locked shelf that new listings rarely crack.
Brands
7 falling
Sellers
42
Est. top-5 brand share
96%
Top 20: 100%
Est. top-5 click share
76%
Top 20: 100%
Open market
2%
- TORCH27%
- NGK24%
- Quicksilver20%
- OVERSTOCKDIRECT18%
- PartsBlast8%
- Champion2%
- Open — no brand owns it (1 brand, 2%)
Search terms
Top Ngk Buhw-2 Marine Spark Plugs search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- ngk buhw-2 marine spark plugs7K/yr
- buhw-2 spark plugs7K/yr
- ngk buhw5K/yr
- ngk buhw-25K/yr
- ngk bu8h4K/yr
Reviews and returns
What reviews say buyers love and hate about Ngk Buhw-2 Marine Spark Plugs
We read the reviews and the return reasons for every product selling here.
“Picture hows 4 pack so its a rip off”
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.
13 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 Ngk Buhw-2 Marine Spark Plugs 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









