Brake Fluid Cap
FailPrices span $4.59–$16.31, mostly outside the sweet spot, so Brake Fluid Cap is a Fail.
- Flapen Score
- 45 / 100Ranks 4,788 of 7,287 Automotive niches · −4 vs the category median of 4945
- Market size
- $53K/yr106K searches / yr
- 90-day growth
- -7.3%search demand this quarter
- Competition
- 54%top-5 click share · 20 brands · 66 sellers
Flapen Score
Brake Fluid Cap against its category
The dotted line is the Automotive average. Past it, Brake Fluid Cap is stronger. Inside it, weaker.
Market
The Brake Fluid Cap market on Amazon at a glance
Shoppers on Amazon United States searched for Brake Fluid Cap 106K times last year and spent an estimated $53K. The top 5 brands take 57% of clicks. Flapen scores it 45 out of 100, a Fail.
01 · Demand
An estimated 6.1% of those searches ended in a purchase.
Shoppers searched for this 106K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 6.1% of those searches ended in a purchase. Searches in the last 90 days moved -7.3% against the 90 days before. Searches, conversion and average price together put the market at an estimated $53K a year.
- Searches, last 12 months
- 106K
- Growth, 90 days vs prior 90
- -7.3%
- Conversion, latest week
- 6.1%
- Market size, estimated
- $53Ka year
- Peak month
- October1.3× the quietest month
- Top search term
- brake fluid reservoir cap17K searches a year
02 · Price
A sale here is worth $8.11.
Listings sell for $8.11 on average, from $4.59 to $16.31. Amazon reports units sold in ranges. This niche sold 5K to 6K a year. The average listing sells 100 to 250 of them. At $8.11 that is $811 to $2K a year per listing.
- Average price
- $8.11under the $15 to $100 sweet spot
- Price range
- $4.59–$16.31
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 5K–6K
- Units per listing a year
- 100–250
- Revenue per listing a year
- $811–$2K
- Returns
- 7.4%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is low.
28% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 1.8% of listings are out of stock. The average listing ranks #233 within Brake System. It carries 130 reviews at 3.70 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 28%
- Prime listings
- 100%
- Out of stock, average day
- 1.8%
- Average rank
- #233in Brake System
- Average rating
- 3.70 starsAmazon United States average 4.42 stars
- Average reviews
- 130per listing
- Listings tracked
- 25
04 · Newcomers
1 of last year's 11 launches cleared the first-year sales bar.
11 products launched here in the last 12 months. 1 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
- 11
- Successful launches
- 1Amazon's first-year sales bar
- Average brand age
- 35 months
Products
Top Brake Fluid Cap 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
Brake Fluid Cap Replacement OEM #4683656AB 5014518AA Brake Master Cylinder Cap Compatible with 2001-2017 Jeep Wrangler 2009-2020 Dodge Journey 2014-2020 Cherokee 2017-2020 Brake Fluid Reservoir Caps
- Price
- $6.85
- Rating
- 2.5/5
- Reviews
- 134
- Age
- 11mo ago

ESWW Dot 3 Brake Fluid Cap Replacement 20760280 Brake Master Cylinder Reservoir Cap for Cadillac Escalade ESV Chevy Suburban Tahoe Silverado Volt GMC Yukon Sierra Acadia Canyon Buick Enclave Lucerne
- Price
- $9.25
- Rating
- 4.6/5
- Reviews
- 24
- Age
- 5mo ago

PVOTAWP Brake Fluid Cap Replacement for Honda Brake Master Cylinder Tank Fluid Reservoir Cap Compatible with Honda Accord Fit EV Hybrid S2000 Accessories 46662-SLE-J01 46662-SDC-A02 46662-S8A-003
- Price
- $8.38
- Rating
- 4.5/5
- Reviews
- 127
- Age
- 1y ago

Brake Fluid Cap Replacement OEM#4683656AB Brake Master Cylinder Cap Compatible with Chrysler Sebring Dodge Ram 1500 2500 3500 Jeep Wrangler JK Standard Brake Reservoir Cap
- Price
- $5.52
- Rating
- 4.7/5
- Reviews
- 81
- Age
- 2y ago

Motorcraft - Cap - Filler (P) (BRFC21)
- Price
- $16.31
- Rating
- 4.7/5
- Reviews
- 89
- Age
- 6y ago
Trending
estimated 90-day click momentum
WZP Brake Fluid Cap Master Cylinder Fluid Cap with Built-in Rubber Sealing Ring Brake Reservoir Replacement Compatible with Honda Accord Replaces for 46662-SLE-J01 46662-SDC-A02 46662-S8A-003
- Price
- $6.59
- Rating
- 1.8/5
- Reviews
- 3
- Age
- 7mo ago

CouTunp Brake Fluid Cap Yellow Brake Master Cylinder Fluid Reservoir Cap Car Brake Master Cylinder Cap Compatible with Jeep Wrangler Compass Cherokee Chrysler Replaces 68303540AA 68211910AB
- Price
- $9.51
- Rating
- 1.0/5
- Reviews
- 1
- Age
- 5mo ago

Icyfond Brake Fluid Cap Brake Master Cylinder Reservoir Cap Brake Oil tank Cap OEM#68211910AB Compatible with Wrangler Cherokee Compass Chrysler Pacifica(Yellow)
- Price
- $8.93
- Rating
- 4.0/5
- Reviews
- 5
- Age
- 6mo ago

YUPIKJI Brake Fluid Cap Brake Reservoir Cap Master Cylinder Filler Caps Replace OEM #4683656AB 5014518AA Car Accessories Fluid Tank Reservoir Cover Compatible with Dodge Jeep Chrysler Ram Dakota
- Price
- $6.11
- Rating
- 3.9/5
- Reviews
- 8
- Age
- 6mo ago

ESWW Dot 3 Brake Fluid Cap Replacement 20760280 Brake Master Cylinder Reservoir Cap for Cadillac Escalade ESV Chevy Suburban Tahoe Silverado Volt GMC Yukon Sierra Acadia Canyon Buick Enclave Lucerne
- Price
- $9.25
- Rating
- 4.6/5
- Reviews
- 24
- Age
- 5mo ago
Newest
by launch date
CouTunp Brake Fluid Cap Yellow Brake Master Cylinder Fluid Reservoir Cap Car Brake Master Cylinder Cap Compatible with Jeep Wrangler Compass Cherokee Chrysler Replaces 68303540AA 68211910AB
- Price
- $9.51
- Rating
- 1.0/5
- Reviews
- 1
- Age
- 5mo ago

ESWW Dot 3 Brake Fluid Cap Replacement 20760280 Brake Master Cylinder Reservoir Cap for Cadillac Escalade ESV Chevy Suburban Tahoe Silverado Volt GMC Yukon Sierra Acadia Canyon Buick Enclave Lucerne
- Price
- $9.25
- Rating
- 4.6/5
- Reviews
- 24
- Age
- 5mo ago

Brake Fluid Cap Brake Master Cylinder Cap Master Cylinder Tank Fluid Reservoir Cover Compatible with Honda Accord Fit EV Hybrid Replace OEM# 46662-SLE-J01 46662-SDC-A02 46662-S8A-003
- Price
- $7.59
- Rating
- 3.4/5
- Reviews
- 3
- Age
- 5mo ago

JYIS 1PC Brake Master Cylinder Cap Cylinder Tank Reservoir Cap Replacement Replaces OEM# 46662-SLE-J01 46662-SDC-A02 46662-S8A-003 Car Brake Fluid Cap Accessories Compatible with Honda Accord CR-V
- Price
- $6.32
- Rating
- 3.3/5
- Reviews
- 7
- Age
- 6mo ago

Icyfond Brake Fluid Cap Brake Master Cylinder Reservoir Cap Brake Oil tank Cap OEM#68211910AB Compatible with Wrangler Cherokee Compass Chrysler Pacifica(Yellow)
- Price
- $8.93
- Rating
- 4.0/5
- Reviews
- 5
- Age
- 6mo ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 54% of clicks. Leaders hold, but buyers still shop past them.
Brands
20 falling
Sellers
66
Est. top-5 brand share
57%
Top 20: 100%
Est. top-5 click share
54%
Top 20: 94%
Open market
38%
- QQWD30%
- ESWW10%
- Motorcraft6%
- pvotawp6%
- YUPIKJI5%
- AUPARTIK5%
Demand
Brake Fluid Cap search demand
Weekly searches over the year, seasonality beneath. Pick a range.
No pronounced peak months · busiest ÷ quietest = 1.3×
Search terms
Top Brake Fluid Cap search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- brake fluid reservoir cap17K/yr
- brake fluid cap25K/yr
- master cylinder cap17K/yr
- brake reservoir cap17K/yr
- brake fluid cap replacement12K/yr
- brake master cylinder cap10K/yr
- brake master cylinder reservoir cap6K/yr
- brake cap4K/yr
Reviews and returns
What reviews say buyers love and hate about Brake Fluid Cap
We read the reviews and the return reasons for every product selling here.
“DOES NOT FIT”
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 Fluid Cap 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









