Brake Line Fittings
MaybeProducts sell for $23.13 on average, inside the sweet spot. But demand is soft, at -0.1% this quarter, so Brake Line Fittings is a Maybe.
- Flapen Score
- 50 / 100Top 44% of 7,287 Automotive niches · +1 vs the category median of 4950
- Market size
- $135K/yr110K searches / yr
- 90-day growth
- -0.1%search demand this quarter
- Competition
- 58%top-5 click share · 14 brands · 24 sellers
Flapen Score
Brake Line Fittings against its category
The dotted line is the Automotive average. Past it, Brake Line Fittings is stronger. Inside it, weaker.
Market
The Brake Line Fittings market on Amazon at a glance
Shoppers on Amazon United States searched for Brake Line Fittings 110K times last year and spent an estimated $135K. The top 5 brands take 75% of clicks. Flapen scores it 50 out of 100, a Maybe.
01 · Demand
An estimated 5.3% of those searches ended in a purchase.
Shoppers searched for this 110K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 5.3% of those searches ended in a purchase. Searches in the last 90 days moved -0.1% against the 90 days before. Searches, conversion and average price together put the market at an estimated $135K a year.
- Searches, last 12 months
- 110K
- Growth, 90 days vs prior 90
- -0.1%
- Conversion, latest week
- 5.3%
- Market size, estimated
- $135Ka year
- Peak month
- September1.4× the quietest month
- Top search term
- brake line fittings52K searches a year
02 · Price
A sale here is worth $23.13.
Listings sell for $23.13 on average, from $5.65 to $105.06. Amazon reports units sold in ranges. This niche sold 6K to 8K a year. The average listing sells 100 to 250 of them. At $23.13 that is $2K to $6K a year per listing.
- Average price
- $23.13inside the $15 to $100 sweet spot
- Price range
- $5.65–$105.06
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 6K–8K
- Units per listing a year
- 100–250
- Revenue per listing a year
- $2K–$6K
- Returns
- 1.7%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is low.
81% 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 #28 within Brake System. It carries 591 reviews at 4.57 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 81%
- Prime listings
- 100%
- Out of stock, average day
- 0.0%
- Average rank
- #28in Brake System
- Average rating
- 4.57 starsAmazon United States average 4.42 stars
- Average reviews
- 591per listing
- Listings tracked
- 21
04 · Newcomers
5 of last year's 9 launches cleared the first-year sales bar.
9 products launched here in the last 12 months. 5 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 35 months on average, so a newcomer is not facing entrenched names.
- Launched, last 12 months
- 9
- Successful launches
- 5Amazon's first-year sales bar
- Average brand age
- 35 months
Products
Top Brake Line Fittings 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 9, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
Ailbiuko 100Pcs 3/16 & 1/4 Brake Line Fittings Assortment Kit 3/8 Inch-24 Threads 7/16 Inch-24 Thread Nuts and Unions 1/2 Inch-20 Thread 9/16 Inch-18 Thread Nut
- Price
- $20.11
- Rating
- 4.5/5
- Reviews
- 84
- Age
- 7mo ago

Tnisesm 102Pcs 3/16 & 1/4 Brake Line Fittings Assortment Kit 3/8 Inch-24 Threads Nuts and Unions 7/16Inch-24 1/2 Inch-20 9/16 Inch-18 7/16 Inch-24 Threads Nuts and Unions
- Price
- $19.87
- Rating
- 4.6/5
- Reviews
- 374
- Age
- 6mo ago

Ailbiuko 100Pcs 3/16 Brake Line Fittings Assortment Kit 3/8 Inch-24 Threads Nuts and Unions 7/16 Inch-24 Thread 1/2 Inch-20 Thread 9/16 Inch-18 Thread Nut
- Price
- $20.05
- Rating
- 4.5/5
- Reviews
- 84
- Age
- 7mo ago

35PCS Brake Line Fittings Assortment Brake Line Kit for 1/4 & 3/16 Brake Line Inverted Flares Universal Rustproof Brake Line Repair Kit Brass Brake Line Nuts for Car Truck SUV
- Price
- $7.59
- Rating
- 4.4/5
- Reviews
- 121
- Age
- 2y ago

3/16 Brake Line Pressure Fittings 12 Pieces 3/8 Inch-24 Threads Brass Brake Line Fitting Assortment for 3/16 Inch Brake Line Tube (4 Unions 8 Nuts)
- Price
- $8.01
- Rating
- 4.6/5
- Reviews
- 126
- Age
- 1y ago
Trending
estimated 90-day click momentum
100PCS Brake Line Fittings Durable Brake Line Kit Assortment for 42PCS 1/4 & 58PCS 3/16 Inverted Pipe Nut and Connection Brakes Lines Fitting Kit for Cars SUVs Trucks
- Price
- $16.16
- Rating
- 5.0/5
- Reviews
- 5
- Age
- 6mo ago

12PCS 3/16 Brake Line Fittings Kit 3/16 Brake Line Unions & Tube Nuts for Double/Inverted Flare Brakes Lines Brakes Lines Repair Kit for Car/Truck DIY Repair & Maintenance (12PCS)
- Price
- $5.65
- Rating
- 4.7/5
- Reviews
- 10
- Age
- 8mo ago

Ailbiuko 3/16 Brake Line Repair Kit Double & Single Brake Line Flaring Tool Kit + 2 Set 25ft 3/16 Inch Brake Line with 100 Pcs Fittings(8 Unions Included) + Brake Line Bender
- Price
- $49.89
- Rating
- 4.1/5
- Reviews
- 34
- Age
- 6mo ago

Tnisesm 102Pcs 3/16 Brake Line Fittings Assortment Kit 3/8 Inch-24 Threads Nuts and Unions 7/16Inch-24 Thread 1/2 Inch-20 Thread 9/16 Inch-18 Thread
- Price
- $19.67
- Rating
- 4.6/5
- Reviews
- 374
- Age
- 6mo ago

268PCS Brake Line Nut Reducer Bushing Hex Nipple Close Nipple Reducing Hex Coupling Hex Head Plugs Hex head Cap Socket Plug Kit
- Price
- $70.29
- Rating
- 4.5/5
- Reviews
- 117
- Age
- 7mo ago
Newest
by launch date
100PCS Brake Line Fittings Durable Brake Line Kit Assortment for 42PCS 1/4 & 58PCS 3/16 Inverted Pipe Nut and Connection Brakes Lines Fitting Kit for Cars SUVs Trucks
- Price
- $16.16
- Rating
- 5.0/5
- Reviews
- 5
- Age
- 6mo ago

Ailbiuko 3/16 Brake Line Repair Kit Double & Single Brake Line Flaring Tool Kit + 2 Set 25ft 3/16 Inch Brake Line with 100 Pcs Fittings(8 Unions Included) + Brake Line Bender
- Price
- $49.89
- Rating
- 4.1/5
- Reviews
- 34
- Age
- 6mo ago

Tnisesm 102Pcs 3/16 & 1/4 Brake Line Fittings Assortment Kit 3/8 Inch-24 Threads Nuts and Unions 7/16Inch-24 1/2 Inch-20 9/16 Inch-18 7/16 Inch-24 Threads Nuts and Unions
- Price
- $19.87
- Rating
- 4.6/5
- Reviews
- 374
- Age
- 6mo ago

Tnisesm 102Pcs 3/16 Brake Line Fittings Assortment Kit 3/8 Inch-24 Threads Nuts and Unions 7/16Inch-24 Thread 1/2 Inch-20 Thread 9/16 Inch-18 Thread
- Price
- $19.67
- Rating
- 4.6/5
- Reviews
- 374
- Age
- 6mo ago

268PCS Brake Line Nut Reducer Bushing Hex Nipple Close Nipple Reducing Hex Coupling Hex Head Plugs Hex head Cap Socket Plug Kit
- Price
- $70.29
- Rating
- 4.5/5
- Reviews
- 117
- Age
- 7mo ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 58% of clicks. Leaders hold, but buyers still shop past them.
Brands
14 falling
Sellers
24
Est. top-5 brand share
75%
Top 20: 100%
Est. top-5 click share
58%
Top 20: 99%
Open market
20%
- Ailbiuko37%
- Tnisesm20%
- SSNNUU6%
- ecocstm6%
- 4LIFETIMELINES6%
- Frienda5%
Demand
Brake Line Fittings search demand
Weekly searches over the year, seasonality beneath. Pick a range.
No pronounced peak months · busiest ÷ quietest = 1.4×
Search terms
Top Brake Line Fittings search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- brake line fittings52K/yr
- 3/16 brake line fitting23K/yr
- brake line adapter fittings8K/yr
- brake line fitting kit8K/yr
- 3/16 brake line fittings7K/yr
- brake fittings4K/yr
- brake line fitting4K/yr
- brake line fittings 3/164K/yr
Reviews and returns
What reviews say buyers love and hate about Brake Line Fittings
We read the reviews and the return reasons for every product selling here.
“Description doesn't match product”
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.
20 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 Brake Line Fittings 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









