---
title: "Troy Bilt 21 Inch Mower Blade — $188K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/patio-lawn-garden/troy-bilt-21-inch-mower-blade"
last_updated: "2026-08-09T15:17:03.347Z"
locale: en
meta:
description: "Niche score 62/100 · $188K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 62/100 · $188K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Troy Bilt 21 Inch Mower Blade — $188K/yr Amazon US Niche (2026) - Flapen"
---
# **troy bilt 21 inch mower blade**
**Worth a look**
Shows demand growing +182.9% this quarter, but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 38Growth 97Conversion 82Competition 35Returns 94Price range 95Avg price 89Brand share 39Review moat 61Quality gap 24
**Growth**
**Incredible****+182.9%**
90-day search growth — must beat 0% to launch
**Price range**
**Incredible****$16.46–$26.00**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Returns**
**Great****1.1%**
return rate — above 5% kills the launch gate
**Avg price**
**Great****$20.67**
avg listing price — sweet spot $15–$100
**Conversion**
**Great****8.8%**
search→purchase rate — share of searches ending in a sale
**Review moat**
**Good****1,066.1**
avg incumbent reviews — the moat a new listing must climb
**Brand share**
**Okay****82%**
top-5 brand share — brands hold most of the demand
**Market size**
**Okay****$188K**
$188K/yr · 103K searches
**Competition**
**Okay****64%**
top-5 click share — leaders hold, buyers still browse
**Quality gap**
**Bad****4.6★**
avg incumbent rating — lower means beatable quality
**Signals**[** Trending**](https://flapen.com/research/niches?market=us&signal=trending "Search growth > 100% (90d)")
According to Flapen's Amazon United States niche tracking, troy bilt 21 inch mower blade is a $188K/yr Amazon United States market (103K searches/yr). The top 5 brands hold 82% of demand. Demand peaks in Apr–May–Jun–Jul. Verdict: Worth a look — 62/100.
Data updated Jul 16, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **troy bilt 21 inch mower blade market data**
- **Units sold / yr**
- **8K–10K**
- avg 250–500/product
- **Revenue / yr**
- **$165K–$207K**
- units × avg price
- **Conversion rate**
- **8.8%**
- **Avg BSR**
- **#257**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **90%**
- **Out of stock**
- **4.3%**
- **Avg brand age**
- **47 months**
- **Avg seller age**
- **165 days**
## **Competition & brand share**
The top 5 products take 64% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**11 **▼falling
**Sellers**
**19**
**Top-5 brand share**
**82%**
Top 20: 100%
**Top-5 click share**
**64%**
Top 20: 100%
**Open market**
**12%**
- Grasscool30% - GICOOL16% - Maxpower16% - UDC Parts10% - Chway9% - Fismiuta7% - Open — no brand owns it (5 brands, 12%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +182.9% search growth over the last 90 days.
9K7KSpike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Apr, May, Jun, Jul · busiest ÷ quietest = 83.3×
[**Open Trend **](https://flapen.com/research/us/patio-lawn-garden/troy-bilt-21-inch-mower-blade/trend)
## **Top troy bilt 21 inch mower blade search terms**
- **troy bilt 21 inch mower blade**24K/yr+275.5%7.7% conv. - **942-0741a**16K/yr+155.9%13.2% conv. - **craftsman 21 inch lawn mower blade**14K/yr+138.2%6.8% conv. - **yard machine 21 inch lawn mower blade**7K/yr+329.8%4.7% conv. - **942-0741a mulching blade**6K/yr+116.9%13.7% conv. - **craftsman 21 inch mulching push lawn mower blade**4K/yr+160.0%6.4% conv. - **21 inch lawn mower blade craftsman**4K/yr+253.2%5.0% conv. - **21 inch mulching blade**5K/yr+130.8%3.1% conv. - **21 mulching blade**4K/yr+260.6%3.0% conv. - **craftsman push mower blade**3K/yr+217.3%5.0% conv. [**All search terms **](https://flapen.com/research/us/patio-lawn-garden/troy-bilt-21-inch-mower-blade/search-terms)
## **Top troy bilt 21 inch mower blade 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%10%$19K20%$38K30%$56K40%$75K101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 20 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Grasscool 942-0741A 21 inch Deck Troy Bilt Mower Mulching Blade Replacement**Grasscool**$18.89**4.8★2,110 rev](https://www.amazon.com/dp/B0BG2KM3D4) [2**Maxpower 331528B USA MADE 21 Cut Mulching Blade**Maxpower**$17.31**4.7★10,940 rev](https://www.amazon.com/dp/B003VPAEH0) [3**UDC Parts 942-0741A Mower Blades 21 Inch Replacement for Troy Bilt TB130 TB240 TB160 TB115 TB230 Craftsman M230 M250 Cub Cadet Yard Machines 742-0741 742-0741A 942-0741 CMXGZAM100067 / Mulching 2 Pack**UDC Parts**$24.37**4.5★4,563 rev](https://www.amazon.com/dp/B0CPM5FKK1) [4**GICOOL 1-Pack 942-0741A Lawn Mower Mulching Blade for MTD/Cub Cadet/Troy-Bilt 21 Inch Deck Mower Replaces 742-0741A 742-04100 942-0741 CMXGZAM100067**GICOOL**$17.72**4.8★54 rev](https://www.amazon.com/dp/B0FZ3F2K7X) [5**Chway 21 inch Mulching Blades Lawn Mower Blade Replace Number for Troy Bilt Cub Cade Craftsman MTD 942-0741A 742-0741 742-0741A 942-0741 Center Hole Bow Tie Shape (1 Pcs)**Chway**$17.07**4.6★202 rev](https://www.amazon.com/dp/B0DQYMFSSQ)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Fismiuta 21 Inch Lawn Mower Blade - Mulching Blade for Cub Cade MTD Craftsman Troy Bilt TB110 TB200 Some 21 Walk Behind Push Mower Replace Parts 942-0741A 742-0741A CMXGZAM100067**Fismiuta**$18.77**74 rev5mo ago](https://www.amazon.com/dp/B0GHR1YLND) [**21 inch Lawn Mower Blade for Craftsman 406712 532406712 for Husqvarna 21 inch Deck Push Walk Behind Lawnmower Circle Mulching Lawn Mower Blade Replacement Part 189028 532189028 165833 175064**Fismiuta**$20.52**50 rev5mo ago](https://www.amazon.com/dp/B0GHR8J7GN) [**Chway 331737B 406712 Mulching Blade with Circle Mounting Pattern 21 Lawn Mower Blade Compatible with Craftsman Husqvarna 21 inch Deck Push Walk Behind Lawnmower Replace for 165833 175064 189028**Chway**$17.91**41 rev7mo ago](https://www.amazon.com/dp/B0G8MJFC7Z) [**QWD 942-0741A Mulching Lawn Mower Blade 21 Inch Mower Blade Replacement for Troy-Bilt MTD Cub Cadet Craftsman Replaces 742-0741A 742-0741 742-04100 Bow Tie Center Hole 1 Pack**QWD**$16.46**82 rev7mo ago](https://www.amazon.com/dp/B0G64T4CCL) [**GICOOL 406712 Mulching Blade with 5/8 Circle Mounting Pattern for 21 Deck Push Lawn Mower Craftsman Husqvarna 532406712 165833 175064 189028 532189028**GICOOL**$19.48**48 rev8mo ago](https://www.amazon.com/dp/B0G2KSDYSV)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**QWD 942-0741A Mulching Lawn Mower Blade 21 Inch Mower Blade Replacement for Troy-Bilt MTD Cub Cadet Craftsman Replaces 742-0741A 742-0741 742-04100 Bow Tie Center Hole 1 Pack**QWD**$16.46**4.8★**▲ 80%**](https://www.amazon.com/dp/B0G64T4CCL) [**Fismiuta 21 Inch Lawn Mower Blade - Mulching Blade for Cub Cade MTD Craftsman Troy Bilt TB110 TB200 Some 21 Walk Behind Push Mower Replace Parts 942-0741A 742-0741A CMXGZAM100067**Fismiuta**$18.77**4.6★**▲ 75%**](https://www.amazon.com/dp/B0GHR1YLND) [**21 inch Lawn Mower Blade for Craftsman 406712 532406712 for Husqvarna 21 inch Deck Push Walk Behind Lawnmower Circle Mulching Lawn Mower Blade Replacement Part 189028 532189028 165833 175064**Fismiuta**$20.52**4.7★**▲ 67%**](https://www.amazon.com/dp/B0GHR8J7GN) [**GICOOL 21 Inch Mulching Blade for MTD Troy-Bilt Cub Cadet Craftsman Lawn Mowers Fits TB110 TB230 TB240 TB210 Replaces 942-0741A 742-0741A 742-04100 942-0741 CMXGZAM100067 2 Pack**GICOOL**$24.81**4.6★**▲ 49%**](https://www.amazon.com/dp/B0FZ3JDK4T) [**Chway 21 inch Mulching Blades Lawn Mower Blade Replace Number for Troy Bilt Cub Cade Craftsman MTD 942-0741A 742-0741 742-0741A 942-0741 Center Hole Bow Tie Shape (1 Pcs)**Chway**$17.07**4.6★**▲ 46%**](https://www.amazon.com/dp/B0DQYMFSSQ)
**~~View all trending →~~**
## **What buyers say about troy bilt 21 inch mower blade**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Size-Overall**29%
*“Fits like a glove”*
**Cutting/Trimming**21%
*“Cut well”*
**Quality-Overall**12%
*“Excellent Quality”*
**Value For Money**10%
*“Worth it”*
**Advertised Vs Actual Product**9%
*“As advertised”*
**Assembly/Installation**5%
*“installed without any issues”*
**Ease Of Use**3%
*“Easy to put on”*
**Durability**2%
*“This is a very durable blade”*
**Design-Overall**1%
*“Great Design and Quality”*
**Ease Of Cleaning**1%
*“The cut was clean”*
### **What buyers complain about **
**Size-Overall**18%
*“Doesn't fit”*
**Quality-Overall**16%
*“Garbage received dull”*
**Thickness**8%
*“thick as a nickel”*
**Weight Heavy**4%
*“Heavy blades”*
**Advertised Vs Actual Product**4%
*“Dont match with the description they have on there”*
**Cutting/Trimming**4%
*“Worthless Blade”*
**Assembly/Installation**3%
*“The installation was a bit tricky”*
**Shape/Style**2%
*“I was unaware of the different shapes in the center”*
**Strength**2%
*“bent beyond use within a foot”*
**Metal Quality**2%
*“this metal is actually tougher than the metal of the OEM blades that came with the mower”*
### **Top return reasons **
**Size-Overall**64%
**Advertised Vs Actual Product**12%
**Mounting**8%
**Defective Material/Parts**2%
**Functionality-Overall**2%
**Shape/Style**2%
**Value For Money**1%
**Cutting/Trimming**1%
**Maintenance And Repair**1%
**Add-Ons/Attachments**1%
## **Common questions**
- **Is troy bilt 21 inch mower blade profitable to sell on Amazon United States?**
- The niche generates $188K/yr across 20 tracked products. 4 of 7 products launched in the last 360 days are still selling. 90-day search growth is +182.9%. Flapen's verdict: Worth a look (62/100).
- **How competitive is the troy bilt 21 inch mower blade niche?**
- 11 brands and 19 sellers compete. The top 5 products take 64% of clicks and top 5 brands hold 82% of demand.
- **What do buyers complain about in troy bilt 21 inch mower blade?**
- Top complaints mined from reviews: Size-Overall, Quality-Overall, Thickness. The return rate is 1.1%.
- **When does demand for troy bilt 21 inch mower blade peak?**
- Demand peaks in Apr–May–Jun–Jul; the busiest month runs 83.3× the quietest.
- **What does it cost to enter the troy bilt 21 inch mower blade niche?**
- Listings span $16.46–$26.00; the average listing price is $20.67 (sweet spot $15–$100). The average incumbent carries 1,066 reviews — the moat a new listing must climb.
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