washer fluid cap
Worth a lookShows beatable incumbent ratings (4.0★), but prices mostly outside the sweet spot ($3.87–$8.22) keeps it on the watch list.
Quality gap
Incredible4.0★avg incumbent rating — lower means beatable quality
Conversion
Great10.1%search→purchase rate — share of searches ending in a sale
Brand share
Great57%top-5 brand share — no brand owns this niche
Review moat
Great442.38avg incumbent reviews — the moat a new listing must climb
Returns
Good2.5%return rate — above 6% kills the launch gate
Competition
Good54%top-5 click share — leaders hold, buyers still browse
Market size
Bad$83K$83K/yr · 165K searches
Growth
Bad-21.7%90-day search growth — must beat 0% to launch
Avg price
Bad$4.97avg listing price — sweet spot $15–$100
Price range
Bad$3.87–$8.22cheapest to priciest tracked listing — scored on the share inside $15–$100
Competition
The top 5 products take 54% of clicks — established leaders, but buyers still shop beyond them.Brands
25 rising
Sellers
50
Top-5 brand share
57%
Open market
38%
- KEVWR19%
- Nudhfgauiyt11%
- OTUAYAUTO11%
- Toeeklsa10%
- GM GENUINE PARTS6%
- Tecledsn5%
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 32 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Car Wiper Bottle Cover Windshield Wiper Washer Fluid Reservoir Tank Bottle Cap Car Wiper Bottle Cover Replacement Cap Compatible with GMC Chevrolet Buick Cadillac OEM: 12767700 13227300
KEVWR$5.094.5★1,265 rev
Windshield Wiper Washer Fluid Reservoir Tank Bottle Cap Cover For ChevroletFor Buick For Cadillac For GMCFor Chevrolet part of the model
Nudhfgauiyt$5.164.6★1,476 rev
OTUAYAUTO Windshield Wiper Washer Fluid Reservoir Tank Bottle Cap - for Chevrolet Buick GMC Cadillac - OEM#: 12767700 13227300 12788573 19172571
OTUAYAUTO$5.264.1★1,726 rev
Washer Fluid Cap Windshield Wiper Washer Fluid Reservoir Tank Bottle Cap Replacement for GMC Chevrolet Cadillac Buick - OEM#: 12767700 13227300
Toeeklsa$4.954.1★571 rev
GM Genuine Parts 13227300 Windshield Washer Fluid Reservoir Cap
GM GENUINE PARTS$8.224.8★645 rev
Newest
by launch date
Lxsloet Windshield Washer Fluid Reservoir Cap Windshield Wiper Covers Wiper Reservoir Tank Cap Washer Fluid Reservoir Bottle Cap for Ford Focus 2012-2018 Replaces OEM# KT1Z17632A CP9Z-17A605-A
Lxsloet$6.125 rev
WZP Windshield Washer Fluid Cap Car Wiper Bottle Cover Replacement for 12767700 13227300 Windshield Wiper Washer Fluid Reservoir Tank Bottle Cap Compatible with GMC Chevy Buick Cadillac
WZP$4.9011 rev
ESWW Windshield Washer Fluid Cap Windshield Wiper Fluid Reservoir Cap for VW Atlas Tiguan Jetta GTI Durable Leak-Proof Tank Bottle Lid Automotive Accessories Replacement #3Q0955455 (1PCS)
ESWW$5.0119 rev
SWQS Windshield Washer Fluid Reservoir Cap Replacement Car Wiper Bottle Cover for GMC Chevry Buick Cadillac Acadia Cruze Malibu Trax LaCrosse CTS ATS XTS OEM 13227300 12767700 19172571 12788573
SWQS$4.1351 rev
Biabari 2PCS Windshield Washer Fluid Reservoir Cap Leak-Proof Windshield Wiper Fluid Cap OE# 13227300 19172571 12767700 12788573 Fits GMC/Chevy Silverado/Cadillac ATS/Buick
Biabari$4.38159 rev
Trending
90-day click momentumLxsloet Windshield Washer Fluid Reservoir Cap Windshield Wiper Covers Wiper Reservoir Tank Cap Washer Fluid Reservoir Bottle Cap for Ford Focus 2012-2018 Replaces OEM# KT1Z17632A CP9Z-17A605-A
Lxsloet$6.123.3★
WZP Windshield Washer Fluid Cap Car Wiper Bottle Cover Replacement for 12767700 13227300 Windshield Wiper Washer Fluid Reservoir Tank Bottle Cap Compatible with GMC Chevy Buick Cadillac
WZP$4.902.7★
runmade Windshield Washer Fluid Reservoir Cap Replacement for Ford Focus 2012-2018 CP9Z17A605A CP9Z-17A605-A KT1Z17632A
runmade$7.073.0★
ESWW Windshield Washer Fluid Cap Windshield Wiper Fluid Reservoir Cap for VW Atlas Tiguan Jetta GTI Durable Leak-Proof Tank Bottle Lid Automotive Accessories Replacement #3Q0955455 (1PCS)
ESWW$5.014.3★
SWQS Windshield Washer Fluid Reservoir Cap Replacement Car Wiper Bottle Cover for GMC Chevry Buick Cadillac Acadia Cruze Malibu Trax LaCrosse CTS ATS XTS OEM 13227300 12767700 19172571 12788573
SWQS$4.134.0★
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -21.7% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.3×
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“Fit as it should”
“Just as advertised”
“Great quality and easy to install”
“at a reasonable price”
“it works fine once installed”
“works as it should”
“just not broken”
“super easy to put on”
“Washer Fluid Cap works like it should”
“seems sturdy”
What buyers complain about
“its too big”
“Not Compatible”
“Quality not very good”
“False advertisement”
“Didn't work”
“Faulty product”
“Very brittle”
“seems it may break off eventually”
“Not made with appropriate material”
“Cant open”