---
title: "Shower Door Replacement Parts — $58K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/shower-door-replacement-parts"
last_updated: "2026-08-08T14:35:41.243Z"
locale: en
meta:
description: "Niche score 44/100 · $58K/yr market · 133K searches/yr · $8.54 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 44/100 · $58K/yr market · 133K searches/yr · $8.54 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Shower Door Replacement Parts — $58K/yr Amazon US Niche (2026) - Flapen"
---
# **shower door replacement parts**
**Skip it**
Prices mostly outside the sweet spot ($4.60–$16.07) — this niche doesn't clear our bar today.
Market size 15Growth 23Conversion 59Competition 76Returns 25Price range 9Avg price 24Brand share 37Review moat 89Quality gap 84
**Review moat**
**Great****223.08**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Great****4.2★**
avg incumbent rating — lower means beatable quality
**Competition**
**Great****39%**
top-5 click share — an open shelf
**Conversion**
**Good****5.1%**
search→purchase rate — share of searches ending in a sale
**Brand share**
**Okay****83%**
top-5 brand share — brands hold most of the demand
**Returns**
**Bad****5.0%**
return rate — above 5% kills the launch gate
**Avg price**
**Bad****$8.54**
avg listing price — sweet spot $15–$100
**Growth**
**Bad****-4.3%**
90-day search growth — must beat 0% to launch
**Market size**
**Bad****$58K**
$58K/yr · 133K searches
**Price range**
**Bad****$4.60–$16.07**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Signals**[** High Returns**](https://flapen.com/research/niches?market=us&signal=high_returns "Return rate > 5%")
According to Flapen's Amazon United States niche tracking, shower door replacement parts is a $58K/yr Amazon United States market (133K searches/yr). The top 5 brands hold 83% of demand. Verdict: Skip it — 44/100.
Data updated Jul 27, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **shower door replacement parts market data**
- **Units sold / yr**
- **6K–8K**
- avg 100–250/product
- **Revenue / yr**
- **$51K–$68K**
- units × avg price
- **Conversion rate**
- **5.1%**
- **Avg BSR**
- **#377**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **77%**
- **Out of stock**
- **2.6%**
- **Avg brand age**
- **32 months**
- **Avg seller age**
- **182 days**
## **Competition & brand share**
Clicks spread well past the top 5 (39% combined) — an open shelf where new products get seen.
**Brands**
**13 **▲rising
**Sellers**
**45**
**Top-5 brand share**
**83%**
Top 20: 100%
**Top-5 click share**
**39%**
Top 20: 79%
**Open market**
**14%**
- VYH34% - PRIME-LINE34% - VYF7% - PalpitateC4% - Nkiy Quen4% - IFERLA3% - Open — no brand owns it (7 brands, 14%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -4.3% search growth over the last 90 days.
2K2KSpike '25 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.3×
[**Open Trend **](https://flapen.com/research/us/tools-home-improvement/shower-door-replacement-parts/trend)
## **Top shower door replacement parts search terms**
- **sliding shower door bottom guide**25K/yr+4.4%4.0% conv. - **shower door bottom guide**18K/yr-2.1%4.3% conv. - **shower door guides for sliding doors**14K/yr-2.6%5.1% conv. - **shower door track**13K/yr-2.8%2.1% conv. - **shower door parts bottom guide**13K/yr-14.9%1.6% conv. - **shower door guide**16K/yr-44.1%5.4% conv. - **shower door guides bottom**6K/yr+9.5%4.8% conv. - **shower door track guide**5K/yr+8.2%4.5% conv. - **shower door slider bottom guide**5K/yr+32.3%4.2% conv. - **shower sliding door bottom guide**4K/yr+19.8%3.8% conv. [**All search terms **](https://flapen.com/research/us/tools-home-improvement/shower-door-replacement-parts/search-terms)
## **Top shower door replacement parts 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.
0%4%$2K8%$5K12%$7K16%$9K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Prime-Line M 6059 Sliding Shower Door Bottom Guide 1/2 In. Clear 2 Pack**PRIME-LINE**$5.12**4.0★606 rev](https://www.amazon.com/dp/B00E4BGWGC) [2**M6219 Sliding Shower Door Bottom Track (Top-Hung Shower Door Track) Suitable for 7/16-inch Thick Glass 1/2-inch Channels Glass Shower Door Plastic Track M6219 (1 Pack)**VYH**$7.68**4.4★254 rev](https://www.amazon.com/dp/B0D1RSPQC1) [3**M6219 Sliding Shower Door Bottom Track (Black) Suitable for Top-Hung Sliding Shower Doors Shower Door Track 1/2-inch Slot Suitable for 7/16-inch Thick Glass Shower Doors Plastic Track M6219 (1 pack)**VYH**$7.60**4.4★254 rev](https://www.amazon.com/dp/B0DJHCBXYK) [4**Prime-Line M 6067 Clear Nylon Tub and Shower Enclosure Bottom Guide (Single Pack)**PRIME-LINE**$5.42**4.1★133 rev](https://www.amazon.com/dp/B000VZOQD6) [5**Prime-Line M 6089 Nylon Shower Door Bottom Guide (2 Pack)**PRIME-LINE**$6.02**4.2★1,604 rev](https://www.amazon.com/dp/B00E4BH5BS)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**M6221 Sliding Shower Door Bottom Guide Shower Door Track Guides with 5/8 in Channel - Plastic Sliding Shower Door Bottom Guide Track for Sliding Shower Door (Top Hung) Tub Enclosure Systems 2pcs**KEYDINHT**$11.17**2 rev4mo ago](https://www.amazon.com/dp/B0GTSSTPLW) [**M6221 Sliding Shower Door Bottom Track Guide 5/8 in. Channels Glass Shower Door Plastic Track Replacement Fits Glass Thicknesses of up to 9/16 in (2 Pack)**IFERLA**$11.56**7 rev4mo ago](https://www.amazon.com/dp/B0GTLMX4SZ) [**Novabright 4 Pack Sliding Shower Door Bottom Guide Track Sill Guide for Framed Glass Doors Anti-Jump Anti-derail Replacement Part Easy Install Bathroom Repair Kit**Novabright**$15.25**4 rev4mo ago](https://www.amazon.com/dp/B0GQZHC2F3) [**VYF M6219 Sliding Shower Door Bottom Track for (Top-Hung) Glass Shower Door Plastic Track 3 in Length 1/2 in Width Fits Glass up to 7/16 Thick with Screws (1-Pack)**VYF**$7.36**13 rev5mo ago](https://www.amazon.com/dp/B0GJ724FK6) [**M6219 Sliding Shower Door Bottom Track (Top-Hung Shower Door Track) Suitable for 7/16-inch Thick Glass 1/2-inch Channels Glass Shower Door Plastic Track M6219 (2 Pack Transparent)**VYH**$8.71**32 rev6mo ago](https://www.amazon.com/dp/B0GGGK72YL)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**M6221 Sliding Shower Door Bottom Guide Shower Door Track Guides with 5/8 in Channel - Plastic Sliding Shower Door Bottom Guide Track for Sliding Shower Door (Top Hung) Tub Enclosure Systems 2pcs**KEYDINHT**$11.17**2.5★**▲ 267%**](https://www.amazon.com/dp/B0GTSSTPLW) [**Novabright 4 Pack Sliding Shower Door Bottom Guide Track Sill Guide for Framed Glass Doors Anti-Jump Anti-derail Replacement Part Easy Install Bathroom Repair Kit**Novabright**$15.25**5.0★**▲ 252%**](https://www.amazon.com/dp/B0GQZHC2F3) [**M6221 Sliding Shower Door Bottom Track Guide 5/8 in. Channels Glass Shower Door Plastic Track Replacement Fits Glass Thicknesses of up to 9/16 in (2 Pack)**IFERLA**$11.56**3.1★**▲ 243%**](https://www.amazon.com/dp/B0GTLMX4SZ) [**VYF M6219 Sliding Shower Door Bottom Track for (Top-Hung) Glass Shower Door Plastic Track 3 in Length 1/2 in Width Fits Glass up to 7/16 Thick with Screws (1-Pack)**VYF**$7.36**4.3★**▲ 168%**](https://www.amazon.com/dp/B0GJ724FK6) [**M6219 Sliding Shower Door Bottom Track (Top-Hung Shower Door Track) Suitable for 7/16-inch Thick Glass 1/2-inch Channels Glass Shower Door Plastic Track M6219 (2 Pack Transparent)**VYH**$8.71**4.4★**▲ 142%**](https://www.amazon.com/dp/B0GGGK72YL)
**~~View all trending →~~**
## **What buyers say about shower door replacement parts**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Size-Overall**19%
*“fits the track perfectly”*
**Quality-Overall**13%
*“Excellent product”*
**Assembly/Installation**11%
*“Easy install”*
**Advertised Vs Actual Product**10%
*“Works as advertised”*
**Efficiency**5%
*“Performs well”*
**Material Quality**4%
*“is a good PVC material”*
**Value For Money**3%
*“Good deal”*
**Durability**3%
*“seems durable”*
**Strength**3%
*“Sturdy pieces, just make sure you check your dimensions”*
**Instructions/User Manual/Troubleshooting**3%
*“Effective guide”*
### **What buyers complain about **
**Size-Overall**17%
*“Does not fit”*
**Quality-Overall**9%
*“they provide a poor quality regular steel screw”*
**Adhesion/Stickiness**7%
*“Didnt stick”*
**Strength**6%
*“Very brittle”*
**Compatibility-Overall**4%
*“the glass would not fit properly into the lanes”*
**Functionality-Overall**4%
*“It don't work”*
**Value For Money**3%
*“I feel like its just a little high in price”*
**Material Quality**3%
*“Just cheap plastic”*
**Durability**3%
*“it's been less than 2 months and it's broken”*
**Color**2%
*“I just wish they made them clear rather than gray”*
### **Top return reasons **
**Size-Overall**69%
**Advertised Vs Actual Product**7%
**Compatibility-Overall**6%
**Defective Material/Parts**4%
**Functionality-Overall**4%
**Adhesion/Stickiness**2%
**Maintenance And Repair**1%
**Thickness**1%
**Material Quality**1%
**Height**1%
## **Common questions**
- **Is shower door replacement parts profitable to sell on Amazon United States?**
- The niche generates $58K/yr across 39 tracked products. 0 of 13 products launched in the last 360 days are still selling. 90-day search growth is -4.3%. Flapen's verdict: Skip it (44/100).
- **How competitive is the shower door replacement parts niche?**
- 13 brands and 45 sellers compete. The top 5 products take 39% of clicks and top 5 brands hold 83% of demand.
- **What do buyers complain about in shower door replacement parts?**
- Top complaints mined from reviews: Size-Overall, Quality-Overall, Adhesion/Stickiness. The return rate is 5.0% — above our launch gate.
- **When does demand for shower door replacement parts peak?**
- Demand is steady year-round — the busiest month runs 1.3× the quietest.
- **What does it cost to enter the shower door replacement parts niche?**
- Listings span $4.60–$16.07; the average listing price is $8.54 (sweet spot $15–$100). The average incumbent carries 223 reviews — the moat a new listing must climb.
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