---
title: "Harmonic Balancer — $322K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/automotive/harmonic-balancer"
last_updated: "2026-08-10T21:44:28.315Z"
locale: en
meta:
description: "Niche score 51/100 · $322K/yr market. Brand-locked demand (top 5 brands take 92% of clicks) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 51/100 · $322K/yr market. Brand-locked demand (top 5 brands take 92% of clicks) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Harmonic Balancer — $322K/yr Amazon US Niche (2026) - Flapen"
---
# **harmonic balancer**
**Worth a look**
Shows a thin review moat (65 avg reviews), but brand-locked demand (top 5 brands take 92% of clicks) keeps it on the watch list.
Market size 52Growth 24Conversion 31Competition 93Returns 28Price range 77Avg price 91Brand share 21Review moat 97Quality gap 42
**Review moat**
**Incredible****65.02**
avg incumbent reviews — the moat a new listing must climb
**Competition**
**Great****22%**
top-5 click share — an open shelf
**Avg price**
**Great****$57.16**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$7.82–$117.69**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Market size**
**Good****$322K**
$322K/yr · 226K searches
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Conversion**
**Okay****2.5%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Okay****4.8%**
return rate — above 5% kills the launch gate
**Growth**
**Bad****-1.0%**
90-day search growth — must beat 0% to launch
**Brand share**
**Bad****92%**
top-5 brand share — brand-locked demand
**Signals**[** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")
According to Flapen's Amazon United States niche tracking, harmonic balancer is a $322K/yr Amazon United States market (226K searches/yr). The top 5 brands hold 92% of demand. Verdict: Worth a look — 51/100.
Data updated Jul 9, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **harmonic balancer market data**
- **Units sold / yr**
- **5K–6K**
- avg 0–100/product
- **Revenue / yr**
- **$286K–$343K**
- units × avg price
- **Conversion rate**
- **2.5%**
- **Avg BSR**
- **#209**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **71%**
- **Out of stock**
- **2.0%**
- **Avg brand age**
- **62 months**
- **Avg seller age**
- **178 days**
## **Competition & brand share**
Clicks spread well past the top 5 (22% combined) — an open shelf where new products get seen.
**Brands**
**18 **▼falling
**Sellers**
**104**
**Top-5 brand share**
**92%**
Top 20: 100%
**Top-5 click share**
**22%**
Top 20: 47%
**Open market**
**7%**
- Dorman32% - A-Premium28% - AULINK17% - GM GENUINE PARTS8% - SCITOO6% - MOTOKU1% - Open — no brand owns it (12 brands, 7%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -1.0% search growth over the last 90 days.
5K4KSpike '25 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.2×
[**Open Trend **](https://flapen.com/research/us/automotive/harmonic-balancer/trend)
## **Top harmonic balancer search terms**
- **harmonic balancer**139K/yr+2.2%1.7% conv. - **crankshaft pulley**38K/yr-11.4%1.0% conv. - **crank pulley**13K/yr-6.6%1.3% conv. - **harmonic balancer pulley**10K/yr+17.1%1.3% conv. - **polea del cigueal**9K/yr-6.0%0.5% conv. - **crank shaft pulley**4K/yr+24.0%1.1% conv. - **automotive replacement engine harmonic balancers**3K/yr-16.1%2.1% conv. - **polea de cigueal**6K/yr-21.2%0.6% conv. - **crankshaft harmonic balancer**4K/yr-18.0%0.7% conv. [**All search terms **](https://flapen.com/research/us/automotive/harmonic-balancer/search-terms)
## **Top harmonic balancer 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%2%$6K4%$13K6%$19K8%$26K101001K 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**ACDelco 19300488 Harmonic Balancer**GM GENUINE PARTS**$91.27**4.6★481 rev](https://www.amazon.com/dp/B00S0A4ITG) [2**Dorman 594-018 Engine Harmonic Balancer Compatible with Select Jeep Models**Dorman**$53.80**4.6★321 rev](https://www.amazon.com/dp/B000C122FS) [3**AULINK 594-267 Harmonic Balancer Crankshaft Pulley for Acura MDX 2003-2009 TL RL 2005-2008 for Honda Accord 2003-2007 Ridgeline 2006-2008 Odyssey 2005-2010 Pilot 2005-2008 Saturn Vue 3.0 3.2 3.5 3.7L**AULINK**$45.17**4.6★84 rev](https://www.amazon.com/dp/B0CNSTJ4ZY) [4**Dorman 594-209 Engine Harmonic Balancer Compatible with Select Models**Dorman**$79.15**4.3★156 rev](https://www.amazon.com/dp/B001C6OYEE) [5**Dorman 594-405 Engine Harmonic Balancer Compatible with Select Models**Dorman**$51.93**4.2★100 rev](https://www.amazon.com/dp/B00NF1PYHK)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**MOTOKU Engine Harmonic Balancer Crankshaft Pulley for Honda Element 2003-2006 CR-V 2002-2006 Accord 2003-2005 for Acura TSX 2004-2008 RSX 2002-2006**MOTOKU**$35.06**24 rev1y ago](https://www.amazon.com/dp/B0DF7LPD8C) [**AULINK 594-139 Engine Harmonic Balancer Crankshaft Pulley Compatible with Toyota Camry 1992-2001 Celica 1994-1999 Rav4 1996-2000 Solara 1999-2001 2.0L 2.2L L4 Replaces 1340803020 1340874031**AULINK**$31.36**24 rev2y ago](https://www.amazon.com/dp/B0D8Y25GS5) [**AULINK 594-405 Harmonic Balancer Crankshaft Pulley For 2011-2020 Chrysler 200 300 Dodge Avenger Challenger Charger Durango Jeep Grand Cherokee Wrangler Ram ProMaster 1500 2500 3500 3.0L 3.2L 3.6L V6**AULINK**$47.13**52 rev2y ago](https://www.amazon.com/dp/B0D8W3WFY1) [**A-Premium Engine Harmonic Balancer Pulley - 2.0L 2.2L 2.4L - Compatible with Chevrolet GMC Buick Saab Oldsmobile Pontiac & Saturn Cars - 00-17- Equinox Terrain LaCrosse 9-3 Alero & More**A-Premium**$60.48**10 rev2y ago](https://www.amazon.com/dp/B0CT8QKGR1) [**AULINK 594-267 Harmonic Balancer Crankshaft Pulley for Acura MDX 2003-2009 TL RL 2005-2008 for Honda Accord 2003-2007 Ridgeline 2006-2008 Odyssey 2005-2010 Pilot 2005-2008 Saturn Vue 3.0 3.2 3.5 3.7L**AULINK**$45.17**84 rev2y ago](https://www.amazon.com/dp/B0CNSTJ4ZY)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Dorman 594-018 Engine Harmonic Balancer Compatible with Select Jeep Models**Dorman**$53.80**4.6★**▲ 50%**](https://www.amazon.com/dp/B000C122FS) [**A-Premium Engine Harmonic Balancer Pulley - DOHC V6 3.0L 3.6L - Compatible with Chrysler & Dodge & Jeep & Ram & Volkswagen Cars - Town & Country Challenger Durango Cherokee 1500 Routan & More**A-Premium**$51.81**4.6★**▲ 33%**](https://www.amazon.com/dp/B0BN9VGXNZ) [**AULINK 594-236 Harmonic Balancer Crankshaft Pulley (4.0L V6) for Ford Ranger 2001-2011 Explorer 2003-2010 Explorer Sport Trac 2003-2010 Mustang 2005-2010 for Mercury Mountaineer 2003-2010**AULINK**$60.25**4.4★**▲ 32%**](https://www.amazon.com/dp/B0CNPZL5R5) [**ACDelco 19300488 Harmonic Balancer**GM GENUINE PARTS**$91.27**4.6★**▲ 18%**](https://www.amazon.com/dp/B00S0A4ITG) [**MOTOKU Engine Harmonic Balancer Crankshaft Pulley for Honda Element 2003-2006 CR-V 2002-2006 Accord 2003-2005 for Acura TSX 2004-2008 RSX 2002-2006**MOTOKU**$35.06**4.6★**▲ 16%**](https://www.amazon.com/dp/B0DF7LPD8C)
**~~View all trending →~~**
## **Common questions**
- **Is harmonic balancer profitable to sell on Amazon United States?**
- The niche generates $322K/yr across 119 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -1.0%. Flapen's verdict: Worth a look (51/100).
- **How competitive is the harmonic balancer niche?**
- 18 brands and 104 sellers compete. The top 5 products take 22% of clicks and top 5 brands hold 92% of demand.
- **When does demand for harmonic balancer peak?**
- Demand is steady year-round — the busiest month runs 1.2× the quietest.
- **What does it cost to enter the harmonic balancer niche?**
- Listings span $7.82–$117.69; the average listing price is $57.16 (sweet spot $15–$100). The average incumbent carries 65 reviews — the moat a new listing must climb.
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