---
title: "Kobalt Parts — $64K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/patio-lawn-garden/kobalt-parts"
last_updated: "2026-08-11T09:01:43.323Z"
locale: en
meta:
description: "Niche score 66/100 · $64K/yr market · 68K searches/yr. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 66/100 · $64K/yr market · 68K searches/yr. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Kobalt Parts — $64K/yr Amazon US Niche (2026) - Flapen"
---
# **kobalt parts**
**Worth a look**
Shows demand growing +225.3% this quarter, but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 16Growth 98Conversion 50Competition 63Returns 28Price range 95Avg price 95Brand share 74Review moat 95Quality gap 97
**Growth**
**Incredible****+225.3%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Incredible****3.8★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Great****109.34**
avg incumbent reviews — the moat a new listing must climb
**Avg price**
**Incredible****$23.40**
avg listing price — sweet spot $15–$100
**Price range**
**Incredible****$17.72–$35.37**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Brand share**
**Good****60%**
top-5 brand share — brands hold most of the demand
**Competition**
**Good****47%**
top-5 click share — leaders hold, buyers still browse
**Conversion**
**Good****4.0%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Okay****4.8%**
return rate — above 5% kills the launch gate
**Market size**
**Bad****$64K**
$64K/yr · 68K searches
**Signals**[** Trending**](https://flapen.com/research/niches?market=us&signal=trending "Search growth > 100% (90d)") [** No Dominant Brand**](https://flapen.com/research/niches?market=us&signal=no_dominant_brand "Top brand's click share < 20%") [** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500") [** Quality Gap**](https://flapen.com/research/niches?market=us&signal=quality_gap "Avg rating < 4.0")
According to Flapen's Amazon United States niche tracking, kobalt parts is a $64K/yr Amazon United States market (68K searches/yr). The top 5 brands hold 60% of demand. Demand peaks in Apr–May–Jun–Jul–Aug–Sep. Verdict: Worth a look — 66/100.
Data updated Jul 16, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **kobalt parts market data**
- **Units sold / yr**
- **3K–3K**
- avg 0–100/product
- **Revenue / yr**
- **$59K–$70K**
- units × avg price
- **Conversion rate**
- **4.0%**
- **Avg BSR**
- **#2,306**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **100%**
- **Out of stock**
- **5.9%**
- **Avg brand age**
- **24 months**
- **Avg seller age**
- **146 days**
## **Competition & brand share**
The top 5 products take 47% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**23 **▲rising
**Sellers**
**43**
**Top-5 brand share**
**60%**
Top 20: 98%
**Top-5 click share**
**47%**
Top 20: 89%
**Open market**
**35%**
- Eyoloty18% - THTEN15% - DZDY12% - Kaberalty9% - JOBGV6% - Cilivo5%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +225.3% search growth over the last 90 days.
5K3KSpike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Apr, May, Jun, Jul, Aug, Sep · busiest ÷ quietest = 17.7×
[**Open Trend **](https://flapen.com/research/us/patio-lawn-garden/kobalt-parts/trend)
## **Top kobalt parts search terms**
- **kobalt weed eater head replacement**21K/yr+254.7%2.9% conv. - **kobalt trimmer head replacement**14K/yr+188.7%1.9% conv. - **kobalt 24v trimmer head**9K/yr+393.5%4.3% conv. - **kobalt replacement trimmer head**4K/yr+160.3%1.8% conv. - **kobalt trimmer head**8K/yr+186.8%2.0% conv. - **kobalt string trimmer replacement head**3K/yr+264.5%2.2% conv. - **kobalt weed eater head**3K/yr+196.4%3.1% conv. - **kobalt 24v trimmer parts**3K/yr+132.8%2.2% conv. - **kobalt trimmer replacement head**3K/yr+81.4%2.1% conv. [**All search terms **](https://flapen.com/research/us/patio-lawn-garden/kobalt-parts/search-terms)
## **Top kobalt 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%$3K8%$5K12%$8K16%$10K1101001K10K 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**Thten KST 2224B-03 KLS 124-03 Trimmer Head Compatible with Kobalt 24 Volt KST 1124B-03 KST 2024A-03 KST 4024A-03 KST 4024AB-03 12 inch Straight Shaft String Trimmer with 0.080-in Dual String line**THTEN**$26.57**4.2★126 rev](https://www.amazon.com/dp/B0DRJFHL95) [2**DZDY KLS124-03 String Trimmer Head Compatible with Kobalt 24V KST 2224B-03 KST1124B-03 KST 2024A-03 KST 4024A-03 KST 4024AB-03 Replacement (Trimmer Head 1Pcs)**DZDY**$18.59**3.8★48 rev](https://www.amazon.com/dp/B0GCLN3TJC) [3**Kaberalty KTHA1040-03 KST2580-06 4665020 Replacement Trimmer Head Compatible with Kobalt KST224A-03 KST224B-03 KST1040A-03 KMS1040A-03 KST2540-06 KST1540-06 with 0.080 precut line**Kaberalty**$24.83**3.4★19 rev](https://www.amazon.com/dp/B0GXD38PZK) [4**KTHA 1040-03 Weed Eater Head Replacement Compatible with Kobalt 80V KST 1680-06 40V KST 2540-06 KST 1040A-03 24V KST 224A-03 KST 224B-03 Cordless String Trimmer with 0.080 17 Ft Pre-Cut Dual Line**Eyoloty**$24.32**3.1★37 rev](https://www.amazon.com/dp/B0GXD2WCGM) [5**Eyoloty KST 120X KST 120X-06 Replacement Trimmer Head Compatible with Kobalt 40-Volt Max KST 2040-06 KDLA 3040-03 Weed Eater with 14 Pack Quickload Blades & 8 Pack 0.12 Flexible Line Parts (30 Pack)**Eyoloty**$25.83**2.5★57 rev](https://www.amazon.com/dp/B0CXHNMM1V)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**HSKLAADC KLS 124-03 Trimmer Head Replacement for Kobalt 24-Volt max KST 2224B-03 KST 2024A-03 KST 4024A-03 KST 1124B-03 String Trimmer Weed Wack Pre-Wound Dual 0.080 Dual String line**HSKLAADC**$20.09**2 rev2mo ago](https://www.amazon.com/dp/B0GXYF43J7) [**Kaberalty KTHA1040-03 KST2580-06 4665020 Replacement Trimmer Head Compatible with Kobalt KST224A-03 KST224B-03 KST1040A-03 KMS1040A-03 KST2540-06 KST1540-06 with 0.080 precut line**Kaberalty**$24.83**19 rev3mo ago](https://www.amazon.com/dp/B0GXD38PZK) [**KTHA 1040-03 Weed Eater Head Replacement Compatible with Kobalt 80V KST 1680-06 40V KST 2540-06 KST 1040A-03 24V KST 224A-03 KST 224B-03 Cordless String Trimmer with 0.080 17 Ft Pre-Cut Dual Line**Eyoloty**$24.32**37 rev3mo ago](https://www.amazon.com/dp/B0GXD2WCGM) [**Eyoloty KST 140XB Weed Eater Head Replacement Compatible with Kobalt 80V 140XB 2908003 1315033 1315053 2908503 623439 670250 Straight Brushless Cordless String Trimmer Replacement Head for Kobalt**Eyoloty**$24.26**17 rev3mo ago](https://www.amazon.com/dp/B0GXCYPDZX) [**3 Pack KLS124-03 Replacement Trimmer Head Fit for Kobalt 24V String Trimmer Compatible with KST 1124B-03 KST 2024A-03 KST 2224B-03 KST 4024A-03 KST 4024AB-03 Pre-Wound with 0.080 16ft Dual Line**Direvcdro**$34.34**5 rev4mo ago](https://www.amazon.com/dp/B0GRV446B7)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**KOIUETUA 3 Pack KLS 124-03 Trimmer Head Replacement for Kobalt 24V Weed Wacker Compatible with KST 1124B-03 KST 2024A-03 KST 2224B-03 KST 4024A-03 KST 4024AB-03 Pre-Wound 0.080 Dual Line**KOIUETUA**$35.37**3.7★**▲ 104%**](https://www.amazon.com/dp/B0GRV9PVFR) [**KTHA 1040-03 Weed Eater Head Replacement Compatible with Kobalt 80V KST 1680-06 40V KST 2540-06 KST 1040A-03 24V KST 224A-03 KST 224B-03 Cordless String Trimmer with 0.080 17 Ft Pre-Cut Dual Line**Eyoloty**$24.32**3.1★**▲ 104%**](https://www.amazon.com/dp/B0GXD2WCGM) [**Kaberalty KTHA1040-03 KST2580-06 4665020 Replacement Trimmer Head Compatible with Kobalt KST224A-03 KST224B-03 KST1040A-03 KMS1040A-03 KST2540-06 KST1540-06 with 0.080 precut line**Kaberalty**$24.83**3.4★**▲ 104%**](https://www.amazon.com/dp/B0GXD38PZK) [**KLS 124-03 Weed Eater Head Replacement - Cover Cap & Spring Fits Kobalt 24V**PEHUAP**$17.81**5.0★**▲ 104%**](https://www.amazon.com/dp/B0GRG8WMJD) [**3 Pack KLS124-03 Replacement Trimmer Head Fit for Kobalt 24V String Trimmer Compatible with KST 1124B-03 KST 2024A-03 KST 2224B-03 KST 4024A-03 KST 4024AB-03 Pre-Wound with 0.080 16ft Dual Line**Direvcdro**$34.34**4.0★**▲ 104%**](https://www.amazon.com/dp/B0GRV446B7)
**~~View all trending →~~**
## **What buyers say about kobalt parts**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Size-Overall**25%
*“Direct fit”*
**Assembly/Installation**12%
*“ez to install”*
**Quality-Overall**8%
*“The quality feels reliable”*
**Value For Money**7%
*“Good price”*
**Cutting/Trimming**7%
*“Good trimmer head”*
**Ease Of Use**7%
*“Ease of operation”*
**Advertised Vs Actual Product**6%
*“As advertised”*
**Durability**4%
*“Works really well very durable”*
**Material Quality**3%
*“good quality materials”*
**Functionality-Overall**3%
*“Everything functioned properly with no issues during use”*
### **What buyers complain about **
**Size-Overall**21%
*“Doesn't fit”*
**Durability**10%
*“Falls apart right away”*
**Ease Of Use**9%
*“Difficult to operate”*
**Assembly/Installation**7%
*“Because I can't even squeeze the tabs in to attempt to install”*
**Advertised Vs Actual Product**5%
*“Doesnt fit what it says it does”*
**Quality-Overall**5%
*“Absolutely terrible product”*
**Functionality-Overall**5%
*“Did not work well”*
**Instructions/User Manual/Troubleshooting**3%
*“However, I quickly encountered a significant issue”*
**Value For Money**3%
*“not as good as bargain as you might think”*
**Cutting/Trimming**2%
*“I hate string trimmers”*
### **Top return reasons **
**Size-Overall**59%
**Advertised Vs Actual Product**11%
**Defective Material/Parts**7%
**Functionality-Overall**5%
**Add-Ons/Attachments**4%
**Assembly/Installation**3%
**Durability**2%
**Mechanism Issues**2%
**Mounting**1%
**Cutting/Trimming**1%
## **Common questions**
- **Is kobalt parts profitable to sell on Amazon United States?**
- The niche generates $64K/yr across 32 tracked products. 4 of 20 products launched in the last 360 days are still selling. 90-day search growth is +225.3%. Flapen's verdict: Worth a look (66/100).
- **How competitive is the kobalt parts niche?**
- 23 brands and 43 sellers compete. The top 5 products take 47% of clicks and top 5 brands hold 60% of demand.
- **What do buyers complain about in kobalt parts?**
- Top complaints mined from reviews: Size-Overall, Durability, Ease Of Use. The return rate is 4.8%.
- **When does demand for kobalt parts peak?**
- Demand peaks in Apr–May–Jun–Jul–Aug–Sep; the busiest month runs 17.7× the quietest.
- **What does it cost to enter the kobalt parts niche?**
- Listings span $17.72–$35.37; the average listing price is $23.40 (sweet spot $15–$100). The average incumbent carries 109 reviews — the moat a new listing must climb.
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