---
title: "Lawn Mower Starter Solenoid — $41K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/patio-lawn-garden/lawn-mower-starter-solenoid"
last_updated: "2026-08-11T11:24:24.914Z"
locale: en
meta:
  description: "Niche score 57/100 · $41K/yr market · 32K 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 57/100 · $41K/yr market · 32K searches/yr. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
  "og:title": "Lawn Mower Starter Solenoid — $41K/yr Amazon US Niche (2026) - Flapen"
---

# **lawn mower starter solenoid**

**Worth a look**

Shows searches that convert (11.0% search→purchase), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Market size 10Growth 90Conversion 91Competition 70Returns 86Price range 0Avg price 45Brand share 61Review moat 64Quality gap 27

**Conversion**

**Great****11.0%**

search→purchase rate — share of searches ending in a sale

**Growth**

**Great****+96.3%**

90-day search growth — must beat 0% to launch

**Returns**

**Great****1.5%**

return rate — above 5% kills the launch gate

**Competition**

**Good****43%**

top-5 click share — leaders hold, buyers still browse

**Review moat**

**Good****924.43**

avg incumbent reviews — the moat a new listing must climb

**Brand share**

**Good****68%**

top-5 brand share — brands hold most of the demand

**Avg price**

**Okay****$11.40**

avg listing price — sweet spot $15–$100

**Quality gap**

**Okay****4.6★**

avg incumbent rating — lower means beatable quality

**Market size**

**Bad****$41K**

$41K/yr · 32K searches

**Price range**

**Bad****$9.05–$13.97**

cheapest to priciest tracked listing — scored on the share inside $15–$100

According to Flapen's Amazon United States niche tracking, lawn mower starter solenoid is a $41K/yr Amazon United States market (32K searches/yr). The top 5 brands hold 68% of demand. Demand peaks in Apr–May–Jun. Verdict: Worth a look — 57/100.

Data updated Jul 16, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)

## **lawn mower starter solenoid market data**

<dl>

<dt>**Units sold / yr**</dt><dd>**3K–4K**</dd><dd>avg 100–250/product</dd>

<dt>**Revenue / yr**</dt><dd>**$34K–$46K**</dd><dd>units × avg price</dd>

<dt>**Conversion rate**</dt><dd>**11.0%**</dd>

<dt>**Avg BSR**</dt><dd>**#29**</dd>

<dt>**Page quality**</dt><dd>**0%**</dd>

<dt>**Prime**</dt><dd>**100%**</dd>

<dt>**Sponsored**</dt><dd>**100%**</dd>

<dt>**Out of stock**</dt><dd>**5.3%**</dd>

<dt>**Avg brand age**</dt><dd>**42 months**</dd>

<dt>**Avg seller age**</dt><dd>**189 days**</dd>

</dl>

## **Competition & brand share**

The top 5 products take 43% of clicks — established leaders, but buyers still shop beyond them.

**Brands**

**15 **▼falling

**Sellers**

**28**

**Top-5 brand share**

**68%**

Top 20: 100%

**Top-5 click share**

**43%**

Top 20: 93%

**Open market**

**25%**

- Tecreddy28% - Harbot13% - Hipa12% - LordandLand8% - Stens8% - MaySpare7%

## **Demand & seasonality**

Weekly Amazon search volume, last 56 weeks — +96.3% search growth over the last 90 days.

1K750Spike '26 seasonJulAugSepOctNovDecJanFebMarAprMayJun

Peak months: Apr, May, Jun · busiest ÷ quietest = 5.7×

[**Open Trend **](https://flapen.com/research/us/patio-lawn-garden/lawn-mower-starter-solenoid/trend)

## **Top lawn mower starter solenoid search terms**

- **lawn mower starter solenoid**10K/yr+125.3%7.2% conv. - **starter solenoid 12v lawn mower**8K/yr+100.8%7.1% conv. - **lawn mower solenoid**5K/yr+85.1%10.7% conv. - **mower starter solenoid**4K/yr+77.8%9.7% conv. - **lawnmower starter solenoid**3K/yr+61.0%11.7% conv. - **lawn mower solenoid 12v**2K/yr+72.4%10.5% conv. [**All search terms **](https://flapen.com/research/us/patio-lawn-garden/lawn-mower-starter-solenoid/search-terms)

## **Top lawn mower starter solenoid 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%$3K12%$5K16%$7K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)1 product missing review or click data not plotted

All 24 tracked products in this niche — three views at once, no toggling.

### **Top sellers**

by 90-day click share

[1![Harbot 146154 145673 Universal Starter Solenoid 12V 4-Pole for Craftsman Poulan 1685290 1686981 73233 109081X 2654 532146154 178861 168327](https://m.media-amazon.com/images/I/415NNmsk8wL.jpg)**Harbot 146154 145673 Universal Starter Solenoid 12V 4-Pole for Craftsman Poulan 1685290 1686981 73233 109081X 2654 532146154 178861 168327**Harbot**$10.06**4.5★437 rev](https://www.amazon.com/dp/B09NDGL71L) [2![LordandLand 117-1197 Starter Solenoid 4 Terminal for EXMARK Lawn Boy 117-1197 1-513075 513075 104-3189 212655 for Toro Lawn Tractor 104-3189 12V Lawn Mower Starter Solenoid](https://m.media-amazon.com/images/I/413oGFkm3iL.jpg)**LordandLand 117-1197 Starter Solenoid 4 Terminal for EXMARK Lawn Boy 117-1197 1-513075 513075 104-3189 212655 for Toro Lawn Tractor 104-3189 12V Lawn Mower Starter Solenoid**LordandLand**$9.05**4.5★590 rev](https://www.amazon.com/dp/B0CH9YGTXW) [3![Stens 435-435 Starter Solenoid](https://m.media-amazon.com/images/I/41ABQLVJjFS.jpg)**Stens 435-435 Starter Solenoid**Stens**$13.25**4.6★2,038 rev](https://www.amazon.com/dp/B001OK6OMI) [4![Tecreddy 117-1197 Starter Solenoid for Toro Timecutter ss5000 z4200 ss4225 ss4235 Exmark Zero Turn Lawn Mower Replace Part #784-1221-210 104-3189 E513075 1-513075 212655 28-4210 47-1910](https://m.media-amazon.com/images/I/41esQ4pufXL.jpg)**Tecreddy 117-1197 Starter Solenoid for Toro Timecutter ss5000 z4200 ss4225 ss4235 Exmark Zero Turn Lawn Mower Replace Part #784-1221-210 104-3189 E513075 1-513075 212655 28-4210 47-1910**Tecreddy**$13.97**4.6★1,641 rev](https://www.amazon.com/dp/B0CXHT77XM) [5![Hipa 582042801 192507 Starter Solenoid for Hus-qvarna Craftsman YS4500 LT2000 YT3000 582042802 532192507 Riding Lawn Mower Tractor 12V 4 Post Parts](https://m.media-amazon.com/images/I/41mxnF9thSL.jpg)**Hipa 582042801 192507 Starter Solenoid for Hus-qvarna Craftsman YS4500 LT2000 YT3000 582042802 532192507 Riding Lawn Mower Tractor 12V 4 Post Parts**Hipa**$9.80**4.6★253 rev](https://www.amazon.com/dp/B0CVXF26Z2)

**~~View all top sellers →~~**

### **Newest**

by launch date

[![MaySpare Starter Solenoid for Husqvarna 192507 Lawn Tractor Starter Solenoid 725-06153A 725-06153 Compatible with MTD Troy Bilt Yard Man 12VDC](https://m.media-amazon.com/images/I/41lBLWBx+qL.jpg)**MaySpare Starter Solenoid for Husqvarna 192507 Lawn Tractor Starter Solenoid 725-06153A 725-06153 Compatible with MTD Troy Bilt Yard Man 12VDC**MaySpare**$11.54**0 rev3mo ago](https://www.amazon.com/dp/B0GVH2KT1K) [![192507 Starter Solenoid for Husqvarna Poulan 532192507 582042802 582042801 Craftsman LT2000 YS4500 YT3000 Trombetta 862-1241-211-12 Ariens 21546294 Riding Lawn Mower Tractor](https://m.media-amazon.com/images/I/41ubXTM3uVL.jpg)**192507 Starter Solenoid for Husqvarna Poulan 532192507 582042802 582042801 Craftsman LT2000 YS4500 YT3000 Trombetta 862-1241-211-12 Ariens 21546294 Riding Lawn Mower Tractor**Tecreddy**$13.89**1,641 rev7mo ago](https://www.amazon.com/dp/B0G58C39RH) [![Bullwall Starter Solenoid 12V Lawn Mower Compatible with H-usqvarna 146154 532146154 532109081 532109946 532145673 532175141 33-431 435-435 4-Pole](https://m.media-amazon.com/images/I/31I1Awxjh1L.jpg)**Bullwall Starter Solenoid 12V Lawn Mower Compatible with H-usqvarna 146154 532146154 532109081 532109946 532145673 532175141 33-431 435-435 4-Pole**Bullwall**$9.10**7 rev7mo ago](https://www.amazon.com/dp/B0G3PRSKST) [![KZDAZ 435-700 Starter Solenoid Compatible with Stens Husqvarna 539101714 Trombetta 812-1221-211 Most Riders & Zero Turn Lawn Mowers Starter Solenoid 3 Terminal 12V Replace 854-1221-210 93265-9 93265WR](https://m.media-amazon.com/images/I/31Zq0K9xxcL.jpg)**KZDAZ 435-700 Starter Solenoid Compatible with Stens Husqvarna 539101714 Trombetta 812-1221-211 Most Riders & Zero Turn Lawn Mowers Starter Solenoid 3 Terminal 12V Replace 854-1221-210 93265-9 93265WR**KZDAZ**$9.30**20 rev10mo ago](https://www.amazon.com/dp/B0FNMN2B2V) [![Tecreddy 725-06153A Starter Solenoid for Cub Cadet XT1 XT2 Enduro RZT LT1 ZT1 ZT2 MTD Troy Bilt Yard Man Husky Yard Machines Craftsman Zero Turn Riding Lawn Mower Tractor 762-1261-211-50](https://m.media-amazon.com/images/I/41vuKwdBAbL.jpg)**Tecreddy 725-06153A Starter Solenoid for Cub Cadet XT1 XT2 Enduro RZT LT1 ZT1 ZT2 MTD Troy Bilt Yard Man Husky Yard Machines Craftsman Zero Turn Riding Lawn Mower Tractor 762-1261-211-50**Tecreddy**$13.96**1,641 rev1y ago](https://www.amazon.com/dp/B0DYZTSQPR)

**~~View all new products →~~**

### **Trending**

90-day click momentum

[![MaySpare Starter Solenoid for Husqvarna 192507 Lawn Tractor Starter Solenoid 725-06153A 725-06153 Compatible with MTD Troy Bilt Yard Man 12VDC](https://m.media-amazon.com/images/I/41lBLWBx+qL.jpg)**MaySpare Starter Solenoid for Husqvarna 192507 Lawn Tractor Starter Solenoid 725-06153A 725-06153 Compatible with MTD Troy Bilt Yard Man 12VDC**MaySpare**$11.54**0.0★**▲ 120%**](https://www.amazon.com/dp/B0GVH2KT1K) [![Tecreddy Starter Solenoid 12V for Bad Boy 108-5349-00 ZT CZT MZ Zero Turn Riding Lawn Mower Tractor](https://m.media-amazon.com/images/I/41olqHahB7L.jpg)**Tecreddy Starter Solenoid 12V for Bad Boy 108-5349-00 ZT CZT MZ Zero Turn Riding Lawn Mower Tractor**Tecreddy**$13.78**4.6★**▲ 113%**](https://www.amazon.com/dp/B0DYZVSD8L) [![192507 Starter Solenoid for Husqvarna Poulan 532192507 582042802 582042801 Craftsman LT2000 YS4500 YT3000 Trombetta 862-1241-211-12 Ariens 21546294 Riding Lawn Mower Tractor](https://m.media-amazon.com/images/I/41ubXTM3uVL.jpg)**192507 Starter Solenoid for Husqvarna Poulan 532192507 582042802 582042801 Craftsman LT2000 YS4500 YT3000 Trombetta 862-1241-211-12 Ariens 21546294 Riding Lawn Mower Tractor**Tecreddy**$13.89**4.6★**▲ 88%**](https://www.amazon.com/dp/B0G58C39RH) [![Bullwall Starter Solenoid 12V Lawn Mower Compatible with H-usqvarna 146154 532146154 532109081 532109946 532145673 532175141 33-431 435-435 4-Pole](https://m.media-amazon.com/images/I/31I1Awxjh1L.jpg)**Bullwall Starter Solenoid 12V Lawn Mower Compatible with H-usqvarna 146154 532146154 532109081 532109946 532145673 532175141 33-431 435-435 4-Pole**Bullwall**$9.10**5.0★**▲ 80%**](https://www.amazon.com/dp/B0G3PRSKST) [![Tecreddy 117-1197 Starter Solenoid for Toro Timecutter ss5000 z4200 ss4225 ss4235 Exmark Zero Turn Lawn Mower Replace Part #784-1221-210 104-3189 E513075 1-513075 212655 28-4210 47-1910](https://m.media-amazon.com/images/I/41esQ4pufXL.jpg)**Tecreddy 117-1197 Starter Solenoid for Toro Timecutter ss5000 z4200 ss4225 ss4235 Exmark Zero Turn Lawn Mower Replace Part #784-1221-210 104-3189 E513075 1-513075 212655 28-4210 47-1910**Tecreddy**$13.97**4.6★**▲ 56%**](https://www.amazon.com/dp/B0CXHT77XM)

**~~View all trending →~~**

## **What buyers say about lawn mower starter solenoid**

What buyers praise and complain about, mined from review topics.

### **What buyers love **

**Size-Overall**24%

*“The fitment was accurate”*

**Value For Money**15%

*“Good price”*

**Advertised Vs Actual Product**15%

*“Exactly what I needed”*

**Quality-Overall**14%

*“Quality product, great hardware”*

**Assembly/Installation**7%

*“Easily installed”*

**Efficiency**6%

*“Functionality is excellent”*

**Functionality-Overall**3%

*“Works”*

**Maintenance And Repair**3%

*“A inexpensive repair part to have on hand”*

**Ease Of Use**2%

*“Easy to Use and Works Great”*

**Correct Contents**2%

*“Correct part fast shipping”*

### **What buyers complain about **

**Durability**23%

*“Doesn't last”*

**Quality-Overall**19%

*“Junk disguised in quality box”*

**Functionality-Overall**7%

*“found this starter solenoid would not click over”*

**Defective Material/Parts**6%

*“failed test prior to install defective”*

**Battery Life**4%

*“did not start i checked it the post for the battery was burnt out like burnt off because it was plastic never buy this solenoid”*

**Size-Overall**4%

*“It did not fit exactly as I'd hoped”*

**Value For Money**3%

*“Not worth it”*

**Motor Issues**3%

*“so solenoid was bad out of the box”*

**Assembly/Installation**3%

*“Difficult to install”*

**Maintenance And Repair**2%

*“10 minutes to replace”*

### **Top return reasons **

**Functionality-Overall**29%

**Size-Overall**19%

**Defective Material/Parts**14%

**Advertised Vs Actual Product**8%

**Mounting**7%

**Connectivity-Overall**4%

**Compatibility-Overall**3%

**Value For Money**2%

**Durability**2%

**Assembly/Installation**2%

## **Common questions**

<dl>

<dt>**Is lawn mower starter solenoid profitable to sell on Amazon United States?**</dt><dd>The niche generates $41K/yr across 28 tracked products. 1 of 5 products launched in the last 360 days are still selling. 90-day search growth is +96.3%. Flapen's verdict: Worth a look (57/100).</dd>

<dt>**How competitive is the lawn mower starter solenoid niche?**</dt><dd>15 brands and 28 sellers compete. The top 5 products take 43% of clicks and top 5 brands hold 68% of demand.</dd>

<dt>**What do buyers complain about in lawn mower starter solenoid?**</dt><dd>Top complaints mined from reviews: Durability, Quality-Overall, Functionality-Overall. The return rate is 1.5%.</dd>

<dt>**When does demand for lawn mower starter solenoid peak?**</dt><dd>Demand peaks in Apr–May–Jun; the busiest month runs 5.7× the quietest.</dd>

<dt>**What does it cost to enter the lawn mower starter solenoid niche?**</dt><dd>Listings span $9.05–$13.97; the average listing price is $11.40 (sweet spot $15–$100). The average incumbent carries 924 reviews — the moat a new listing must climb.</dd>

</dl>

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