gp876851
Skip itBrand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Avg price
Incredible$42.00avg listing price — sweet spot $15–$100
Price range
Incredible$28.58–$88.98cheapest to priciest tracked listing — scored on the share inside $15–$100
Quality gap
Great4.0★avg incumbent rating — lower means beatable quality
Review moat
Good636.25avg incumbent reviews — the moat a new listing must climb
Conversion
Good5.6%search→purchase rate — share of searches ending in a sale
Growth
Good+20.2%90-day search growth — must beat 0% to launch
Returns
Bad6.1%return rate — above 5% kills the launch gate
Market size
Bad$59K$59K/yr · 25K searches
Competition
Bad82%top-5 click share — a locked-up shelf
Brand share
Bad100%top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, gp876851 is a $59K/yr Amazon United States market (25K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Jun–Jul. Verdict: Skip it — 43/100.
Data updated Jul 29, 2026 · scored weekly · How we score niches
gp876851 market data
- Units sold / yr
- 3K–3K
- avg 250–500/product
- Revenue / yr
- $105K–$126K
- units × avg price
- Conversion rate
- 5.6%
- Avg BSR
- #164
- Page quality
- 0%
- Prime
- 88%
- Sponsored
- 75%
- Out of stock
- 0.0%
- Avg brand age
- 38 months
- Avg seller age
- 154 days
Competition & brand share
The top 5 products capture 82% of clicks — a locked-up shelf that new listings rarely crack.Brands
5 flat
Sellers
64
Top-5 brand share
100%
Top 20: 100%
Top-5 click share
82%
Top 20: 100%
Open market
0%
- Kohler43%
- Tanxury28%
- GREATUS12%
- Vayolli8%
- nipponAsia8%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +20.2% search growth over the last 90 days.Peak months: Jun, Jul · busiest ÷ quietest = 2.0×
Top gp876851 search terms
- kohler gp8768518K/yr
- gp8768517K/yr
- kohler 116995-63K/yr
- kohler 10836364K/yr
- gp876851 kohler3K/yr
Top gp876851 products on Amazon
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 8 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
GP876851 Mixer Cap and Pressure Balancing Unit Kit Compatible with Kohler Shower Valves K-304 and K-11748 Platforms Shower Cartridge Replacement Repair Kit Include GP800820 and GP77759
Tanxury$31.904.0★141 rev
Kohler GP76851 Repair Kit for Single-Handle Pressure Balance Valve
Kohler$88.984.4★554 rev
KOHLER GENUINE PART GP77759 MIXER CAP FOR PRESSURE BALANCE 1/2 SHOWER VALVE
Kohler$30.964.5★1,160 rev
GP76851 Mixer Cap and GP500520 Pressure Balancing Unit Parts Cartridge
GREATUS$31.073.9★768 rev
GP876851 Mixer Cap and Pressure Balancing Cartridge Kit Compatible With Kohler Shower Valves K-304 and K-11748 Platforms Shower Valve Cartridge Replacement Repair Kit Include GP77759 and GP800820
Vayolli$31.713.3★59 rev
Newest
by launch dateGP876851 Mixer Cap and Pressure Balancing Cartridge Kit Compatible With Kohler Shower Valves K-304 and K-11748 Platforms Shower Valve Cartridge Replacement Repair Kit Include GP77759 and GP800820
Vayolli$31.7159 rev
GP876851 Mixer Cap and Pressure Balancing Unit Kit Compatible with Kohler Shower Valves K-304 and K-11748 Platforms Shower Cartridge Replacement Repair Kit Include GP800820 and GP77759
Tanxury$31.90141 rev
GP76851 Mixer Cap and GP500520 Pressure Balancing Unit Kit Compatible with Kohler GP77759 GP876851 Part Shower Valve Cartridge Replacement Repair Kit for Rite Temp and 1/2 Shower Valve
Tanxury$28.5870 rev
GP876851 Mixer Cap and Pressure-Balancing Unit Kit Replacement for Kohler
nipponAsia$32.19344 rev
GP76851 Mixer Cap and GP500520 Pressure Balancing Unit Parts Cartridge
GREATUS$31.07768 rev
Trending
90-day click momentumKOHLER GENUINE PART GP77759 MIXER CAP FOR PRESSURE BALANCE 1/2 SHOWER VALVE
Kohler$30.964.5★
GP876851 Mixer Cap and Pressure-Balancing Unit Kit Replacement for Kohler
nipponAsia$32.193.9★
Kohler GP76851 Repair Kit for Single-Handle Pressure Balance Valve
Kohler$88.984.4★
GP76851 Mixer Cap and GP500520 Pressure Balancing Unit Kit Compatible with Kohler GP77759 GP876851 Part Shower Valve Cartridge Replacement Repair Kit for Rite Temp and 1/2 Shower Valve
Tanxury$28.583.8★
GP876851 Mixer Cap and Pressure Balancing Unit Kit Compatible with Kohler Shower Valves K-304 and K-11748 Platforms Shower Cartridge Replacement Repair Kit Include GP800820 and GP77759
Tanxury$31.904.0★
What buyers say about gp876851
What buyers praise and complain about, mined from review topics.What buyers love
“Easy to install”
“Perfect fit”
“The unit seems fine”
“almost the same”
“Affordable”
“fixed the leak”
“It works”
“the knob turned easier too”
“easy instructions”
“Good as New”
What buyers complain about
“Bought 2 both leaked”
“then it cracks”
“This fitting does not fit well and cracks”
“And not great instructions”
“Matched up to old part”
“Low quality”
“It's more money”
“was not an exact footprint”
“it seems like Kohler made a tweak in the product design”
“you still have to pull the entire thing out to repair so put in a new one of better quality”
Top return reasons
Common questions
- Is gp876851 profitable to sell on Amazon United States?
- The niche generates $59K/yr across 8 tracked products. 90-day search growth is +20.2%. Flapen's verdict: Skip it (43/100).
- How competitive is the gp876851 niche?
- 5 brands and 64 sellers compete. The top 5 products take 82% of clicks and top 5 brands hold 100% of demand.
- What do buyers complain about in gp876851?
- Top complaints mined from reviews: Leak-Proof, Durability, Size-Overall. The return rate is 6.1% — above our launch gate.
- When does demand for gp876851 peak?
- Demand peaks in Jun–Jul; the busiest month runs 2.0× the quietest.
- What does it cost to enter the gp876851 niche?
- Listings span $28.58–$88.98; the average listing price is $42.00 (sweet spot $15–$100). The average incumbent carries 636 reviews — the moat a new listing must climb.