---
title: "Broan 678 Replacement Parts — $45K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/broan-678-replacement-parts"
last_updated: "2026-08-08T18:19:41.234Z"
locale: en
meta:
description: "Niche score 42/100 · $45K/yr market · 11K searches/yr · $50.54 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 42/100 · $45K/yr market · 11K searches/yr · $50.54 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Broan 678 Replacement Parts — $45K/yr Amazon US Niche (2026) - Flapen"
---
# **broan 678 replacement parts**
**Skip it**
A concentrated shelf (top 5 take 88% of clicks) — this niche doesn't clear our bar today.
Market size 11Growth 49Conversion 80Competition 10Returns 23Price range 95Avg price 93Brand share 19Review moat 98Quality gap 50
**Review moat**
**Incredible****41.75**
avg incumbent reviews — the moat a new listing must climb
**Price range**
**Incredible****$40.25–$83.01**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Avg price**
**Great****$50.54**
avg listing price — sweet spot $15–$100
**Conversion**
**Great****8.2%**
search→purchase rate — share of searches ending in a sale
**Quality gap**
**Good****4.5★**
avg incumbent rating — lower means beatable quality
**Growth**
**Okay****+19.4%**
90-day search growth — must beat 0% to launch
**Returns**
**Bad****5.6%**
return rate — above 5% kills the launch gate
**Brand share**
**Bad****92%**
top-5 brand share — brand-locked demand
**Market size**
**Bad****$45K**
$45K/yr · 11K searches
**Competition**
**Bad****88%**
top-5 click share — a locked-up shelf
**Signals**[** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500") [** High Returns**](https://flapen.com/research/niches?market=us&signal=high_returns "Return rate > 5%") [** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")
According to Flapen's Amazon United States niche tracking, broan 678 replacement parts is a $45K/yr Amazon United States market (11K searches/yr). The top 5 brands hold 92% of demand. Verdict: Skip it — 42/100.
Data updated Jul 27, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **broan 678 replacement parts market data**
- **Units sold / yr**
- **750–1K**
- avg 100–250/product
- **Revenue / yr**
- **$38K–$51K**
- units × avg price
- **Conversion rate**
- **8.2%**
- **Avg BSR**
- **#1,280**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **100%**
- **Out of stock**
- **3.9%**
- **Avg brand age**
- **34 months**
- **Avg seller age**
- **184 days**
## **Competition & brand share**
The top 5 products capture 88% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**7 **▼falling
**Sellers**
**11**
**Top-5 brand share**
**92%**
Top 20: 100%
**Top-5 click share**
**88%**
Top 20: 100%
**Open market**
**3%**
- Bghdas54% - Cylrod17% - Generic10% - MLDWH6% - Merchandise Mecca5% - Acyoyava4% - Open — no brand owns it (1 brand, 3%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +19.4% search growth over the last 90 days.
600400Spike '24Black Friday '24Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.4×
[**Open Trend **](https://flapen.com/research/us/tools-home-improvement/broan-678-replacement-parts/trend)
## **Top broan 678 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%15%$7K30%$13K45%$20K60%$27K110100 Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 8 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**S97015162 Motor Replacement Compatible with Broan (8 x 8-1/4 Housing 110 CFM) for Broan NuTone 683-C 683L-A 678-G/2678F-A 684NT-A 770RLTK 684-D Bathroom Exhaust Fan**Bghdas**$51.56**4.6★87 rev](https://www.amazon.com/dp/B0DB5ST34M) [2**S97015162 Motor Assembly Fit for Broan 678-G 2678F-A 683-C 683L-A 676-d/2676f-a 679FL-C/FL2679F-A 684NT-A 770RLTK Bathroom Exhaust Fan Motor Replacement Bathroom Fan 8 x 8-1/4 110 CFM 4 Sones**Cylrod**$45.70**4.8★40 rev](https://www.amazon.com/dp/B0FNR3H84L) [3**S97015162 Fan Motor Assembly Replacement for Broan NuTone Bathroom Exhaust Fans with 8 x 8-1/4 Housing for HD80L 678 679 763 50NT ED50L DX50L Series Fans**Generic**$41.85**3.7★12 rev](https://www.amazon.com/dp/B0FC2BY47P) [4**Upgrade S97015162 Motor Assembly Replacement for HD80L 678-G 679-E 679L 763 576 N679-E 679FL-C FL2679F-A 679FLT F2679FT HD50L-D HD50LNT HD50RDB DX50L DX70L Series Bathroom Exhaust Fan**MLDWH**$47.54**4.6★27 rev](https://www.amazon.com/dp/B0CYCPJYBS) [5**Upgraded 80 CFM Motor Replacement for Broan-Nutone Bath Fans for 8 x 8-1/4 x 5-3/4 housings Replaces OEM #S97015162 (80 CFM / 2.5 Sones)**Merchandise Mecca**$83.01**4.6★89 rev](https://www.amazon.com/dp/B0CLYXZRW7)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**S97015162 Motor Assembly Fit for Broan 678-G 2678F-A 683-C 683L-A 676-d/2676f-a 679FL-C/FL2679F-A 684NT-A 770RLTK Bathroom Exhaust Fan Motor Replacement Bathroom Fan 8 x 8-1/4 110 CFM 4 Sones**Cylrod**$45.70**40 rev10mo ago](https://www.amazon.com/dp/B0FNR3H84L) [**Upgrade S97015162 Motor Assembly | 8 x 8-1/4 Housing | Compatible with Broan NuTone 678-G2678F-A 683-C683L-A HD80L 770RLTK DX50L Series Bathroom Exhaust Fan**Acyoyava**$40.25**4 rev1y ago](https://www.amazon.com/dp/B0FK3NPNPY) [**S97015162 Fan Motor Assembly Replacement for Broan NuTone Bathroom Exhaust Fans with 8 x 8-1/4 Housing for HD80L 678 679 763 50NT ED50L DX50L Series Fans**Generic**$41.85**12 rev1y ago](https://www.amazon.com/dp/B0FC2BY47P) [**S97015162 Fan Motor Assembly Compatible with Broan NuTone Bathroom Exhaust Fans with 8 x 8-1/4 Housing for 678-G/2678F-A 683-C 770RLTK 676-D 763N 684-D Fans (110 CFM / 4 Sones)**Generic**$45.20**33 rev1y ago](https://www.amazon.com/dp/B0DP4LFPL9) [**S97015162 Motor Replacement Compatible with Broan (8 x 8-1/4 Housing 110 CFM) for Broan NuTone 683-C 683L-A 678-G/2678F-A 684NT-A 770RLTK 684-D Bathroom Exhaust Fan**Bghdas**$51.56**87 rev2y ago](https://www.amazon.com/dp/B0DB5ST34M)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Upgraded 80 CFM Motor Replacement for Broan-Nutone Bath Fans for 8 x 8-1/4 x 5-3/4 housings Replaces OEM #S97015162 (80 CFM / 2.5 Sones)**Merchandise Mecca**$83.01**4.6★**▲ 120%**](https://www.amazon.com/dp/B0CLYXZRW7) [**S97015162 Fan Motor Assembly Replacement for Broan NuTone Bathroom Exhaust Fans with 8 x 8-1/4 Housing for HD80L 678 679 763 50NT ED50L DX50L Series Fans**Generic**$41.85**3.7★**▲ 93%**](https://www.amazon.com/dp/B0FC2BY47P) [**S97015162 Fan Motor Assembly Compatible with Broan NuTone Bathroom Exhaust Fans with 8 x 8-1/4 Housing for 678-G/2678F-A 683-C 770RLTK 676-D 763N 684-D Fans (110 CFM / 4 Sones)**Generic**$45.20**4.1★**▲ 47%**](https://www.amazon.com/dp/B0DP4LFPL9) [**S97015162 Motor Assembly Fit for Broan 678-G 2678F-A 683-C 683L-A 676-d/2676f-a 679FL-C/FL2679F-A 684NT-A 770RLTK Bathroom Exhaust Fan Motor Replacement Bathroom Fan 8 x 8-1/4 110 CFM 4 Sones**Cylrod**$45.70**4.8★**▲ 37%**](https://www.amazon.com/dp/B0FNR3H84L) [**Upgrade S97015162 Motor Assembly | 8 x 8-1/4 Housing | Compatible with Broan NuTone 678-G2678F-A 683-C683L-A HD80L 770RLTK DX50L Series Bathroom Exhaust Fan**Acyoyava**$40.25**4.7★**▼ 11%**](https://www.amazon.com/dp/B0FK3NPNPY)
**~~View all trending →~~**
## **What buyers say about broan 678 replacement parts**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Size-Overall**29%
*“Fit perfect”*
**Noise Level**17%
*“fan is quiet”*
**Assembly/Installation**17%
*“Installation was quick”*
**Advertised Vs Actual Product**6%
*“Just as advertised”*
**Ease Of Use**6%
*“Quick, easy and affordable”*
**Quality-Overall**5%
*“Great quality and easy swap out for oe fan motor”*
**Value For Money**4%
*“cheaper than a stand alone motor”*
**Functionality-Overall**2%
*“Snaps right in”*
**Efficiency**1%
*“Worked great”*
**Instructions/User Manual/Troubleshooting**1%
*“Watch Brian you tube for easy instructions”*
### **What buyers complain about **
**Size-Overall**18%
*“Did not fit as stated”*
**Durability**15%
*“Broke within 1 month”*
**Noise Level**8%
*“hardly hear anything with working great”*
**Quality-Overall**8%
*“cheap”*
**Assembly/Installation**5%
*“On install i had to modify a little bit”*
**Advertised Vs Actual Product**5%
*“It was advertised to fit my existing box but would not”*
**Functionality-Overall**5%
*“The air movement is not powerful”*
**Material Quality**3%
*“Very cheap plastic”*
**Ease Of Cleaning**2%
*“My old one was too dirty to put back in”*
**Strength**2%
*“The fan blade is a little wobbly when turned slowly by hand”*
### **Top return reasons **
**Size-Overall**57%
**Assembly/Installation**10%
**Compatibility-Overall**9%
**Defective Material/Parts**5%
**Advertised Vs Actual Product**5%
**Functionality-Overall**4%
**Noise Level**4%
**Mechanism Issues**1%
**Mounting**1%
**Add-Ons/Attachments**1%
## **Common questions**
- **Is broan 678 replacement parts profitable to sell on Amazon United States?**
- The niche generates $45K/yr across 8 tracked products. 1 of 2 products launched in the last 360 days are still selling. 90-day search growth is +19.4%. Flapen's verdict: Skip it (42/100).
- **How competitive is the broan 678 replacement parts niche?**
- 7 brands and 11 sellers compete. The top 5 products take 88% of clicks and top 5 brands hold 92% of demand.
- **What do buyers complain about in broan 678 replacement parts?**
- Top complaints mined from reviews: Size-Overall, Durability, Noise Level. The return rate is 5.6% — above our launch gate.
- **When does demand for broan 678 replacement parts peak?**
- Demand is steady year-round — the busiest month runs 1.4× the quietest.
- **What does it cost to enter the broan 678 replacement parts niche?**
- Listings span $40.25–$83.01; the average listing price is $50.54 (sweet spot $15–$100). The average incumbent carries 42 reviews — the moat a new listing must climb.
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