---
title: "John Deere D140 Blades — $39K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/patio-lawn-garden/john-deere-d140-blades"
last_updated: "2026-08-11T07:57:52.851Z"
locale: en
meta:
description: "Niche score 62/100 · $39K/yr market · 13K 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 62/100 · $39K/yr market · 13K searches/yr. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "John Deere D140 Blades — $39K/yr Amazon US Niche (2026) - Flapen"
---
# **john deere d140 blades**
**Worth a look**
Shows demand growing +146.3% this quarter, but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 10Growth 96Conversion 85Competition 42Returns 93Price range 95Avg price 95Brand share 66Review moat 76Quality gap 24
**Growth**
**Incredible****+146.3%**
90-day search growth — must beat 0% to launch
**Avg price**
**Incredible****$31.02**
avg listing price — sweet spot $15–$100
**Price range**
**Incredible****$24.56–$46.84**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Returns**
**Great****1.1%**
return rate — above 5% kills the launch gate
**Conversion**
**Great****9.6%**
search→purchase rate — share of searches ending in a sale
**Review moat**
**Great****487.68**
avg incumbent reviews — the moat a new listing must climb
**Brand share**
**Good****65%**
top-5 brand share — brands hold most of the demand
**Competition**
**Okay****60%**
top-5 click share — leaders hold, buyers still browse
**Quality gap**
**Bad****4.6★**
avg incumbent rating — lower means beatable quality
**Market size**
**Bad****$39K**
$39K/yr · 13K searches
**Signals**[** Trending**](https://flapen.com/research/niches?market=us&signal=trending "Search growth > 100% (90d)")
According to Flapen's Amazon United States niche tracking, john deere d140 blades is a $39K/yr Amazon United States market (13K searches/yr). The top 5 brands hold 65% of demand. Demand peaks in Apr–May–Jun–Jul–Aug. Verdict: Worth a look — 62/100.
Data updated Jul 16, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **john deere d140 blades market data**
- **Units sold / yr**
- **1K–2K**
- avg 0–100/product
- **Revenue / yr**
- **$39K–$47K**
- units × avg price
- **Conversion rate**
- **9.6%**
- **Avg BSR**
- **#799**
- **Page quality**
- **0%**
- **Prime**
- **95%**
- **Sponsored**
- **89%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **37 months**
- **Avg seller age**
- **180 days**
## **Competition & brand share**
The top 5 products take 60% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**17 **▼falling
**Sellers**
**31**
**Top-5 brand share**
**65%**
Top 20: 100%
**Top-5 click share**
**60%**
Top 20: 100%
**Open market**
**29%**
- Grasscool24% - UDC Parts17% - John Deere12% - wyevee6% - GICOOL6% - Belleone5%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +146.3% search growth over the last 90 days.
600400Spike '24Spike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Apr, May, Jun, Jul, Aug · busiest ÷ quietest = 13.6×
[**Open Trend **](https://flapen.com/research/us/patio-lawn-garden/john-deere-d140-blades/trend)
## **Top john deere d140 blades 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%$4K20%$8K30%$12K40%$16K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 19 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Grasscool 48 inch Deck JD E140 D140 Mower Mulching Blades Replacement**Grasscool**$31.74**4.7★575 rev](https://www.amazon.com/dp/B0BBRKGRJX) [2**UDC Parts GY20852 Mower Blades 48 Inch Replacement for John Deere D140 E140 S140 Z355E GX21786 GX21784 S170 E170 LA130 LA145 D160 S160 E160 E150 GX21785 AM137757 AM141035 / High Lift Mulching 3 Pack**UDC Parts**$38.43**4.5★4,563 rev](https://www.amazon.com/dp/B0CPM54XJV) [3**John Deere OEM High Lift Mower Blade Kit 145 D 140 150 155 C 160 LA 130 140 145 165 X 165 GY20852**John Deere**$46.84**4.7★1,022 rev](https://www.amazon.com/dp/B008AJELBM) [4**wyevee GY20852 High Lift Mower Blades for 48 Cut Deck GX21784 Mower Blades Compatible with John Dee re 145 155C D140 D150 D160 LA130 LA140 LA145 LA155 E160 Replace AM141035/GX21785/GX21785 3 Pack**wyevee**$26.81**4.7★89 rev](https://www.amazon.com/dp/B0D1Y42HT7) [5**GICOOL GY20852 GX21784 Mower Mulching Blades for John Deere 48 inch D140 E140 D160 E160 E170 E150 LA145 LA140 LA155 155C 48 Deck Lawn Mower Replace AM137757 AM141035 (3 Pack)**GICOOL**$24.56**4.7★31 rev](https://www.amazon.com/dp/B0G2KTL2HQ)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Fismiuta 48 inch Mower Blades for John Deere E140 D140 D160 E160 E170 E150 L120 LA145 LA140 Mulching Lawn Mower Blades with 7 Star Center Hole Replace Part AM137757 AM141035 GX21784 GY20852**Fismiuta**$30.41**24 rev5mo ago](https://www.amazon.com/dp/B0GHQCV3BT) [**Chway GY20852 48 Lawn Mower Blades with 7 Point Star Shape Mulching Blade Compatible with John Deere D140 E140 E170 S140 48 Deck Zero Turn Lawn Tractor Replaces Number GX21784 AM137757 3 Pcs**Chway**$27.38**21 rev6mo ago](https://www.amazon.com/dp/B0GBNRSJ53) [**QWD GY20852 Mower Blades 3 Pack for John Deere 48 Inch Deck 7 Point Star High Lift Blades Replacement for AM137757 AM141035 GX21784 GX21785 Fits D140 D150 D160 LA130 LA140 LA145 E140**QWD**$25.57**82 rev7mo ago](https://www.amazon.com/dp/B0G64HMGMC) [**GICOOL GY20852 GX21784 Mower Mulching Blades for John Deere 48 inch D140 E140 D160 E160 E170 E150 LA145 LA140 LA155 155C 48 Deck Lawn Mower Replace AM137757 AM141035 (3 Pack)**GICOOL**$24.56**31 rev8mo ago](https://www.amazon.com/dp/B0G2KTL2HQ) [**Belleone D140 Blades Compatible with John Dee re 48 inch Mower GY20852 Mower Blades Replaces for GX21784 AM137757 AM141035 E160 E170 D155 E140 LA145 LA130 Z255 Z355E S170 3 Pack**Belleone**$25.57**25 rev1y ago](https://www.amazon.com/dp/B0F1YLXLV9)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**QWD GY20852 Mower Blades 3 Pack for John Deere 48 Inch Deck 7 Point Star High Lift Blades Replacement for AM137757 AM141035 GX21784 GX21785 Fits D140 D150 D160 LA130 LA140 LA145 E140**QWD**$25.57**4.8★**▲ 83%**](https://www.amazon.com/dp/B0G64HMGMC) [**Fismiuta 48 inch Mower Blades for John Deere E140 D140 D160 E160 E170 E150 L120 LA145 LA140 Mulching Lawn Mower Blades with 7 Star Center Hole Replace Part AM137757 AM141035 GX21784 GY20852**Fismiuta**$30.41**4.7★**▲ 83%**](https://www.amazon.com/dp/B0GHQCV3BT) [**GICOOL GY20852 GX21784 Mower Mulching Blades for John Deere 48 inch D140 E140 D160 E160 E170 E150 LA145 LA140 LA155 155C 48 Deck Lawn Mower Replace AM137757 AM141035 (3 Pack)**GICOOL**$24.56**4.7★**▲ 81%**](https://www.amazon.com/dp/B0G2KTL2HQ) [**Chway GY20852 48 Lawn Mower Blades with 7 Point Star Shape Mulching Blade Compatible with John Deere D140 E140 E170 S140 48 Deck Zero Turn Lawn Tractor Replaces Number GX21784 AM137757 3 Pcs**Chway**$27.38**4.6★**▲ 74%**](https://www.amazon.com/dp/B0GBNRSJ53) [**Belleone D140 Blades Compatible with John Dee re 48 inch Mower GY20852 Mower Blades Replaces for GX21784 AM137757 AM141035 E160 E170 D155 E140 LA145 LA130 Z255 Z355E S170 3 Pack**Belleone**$25.57**4.5★**▲ 37%**](https://www.amazon.com/dp/B0F1YLXLV9)
**~~View all trending →~~**
## **What buyers say about john deere d140 blades**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Size-Overall**29%
*“Fit my mower perfectly”*
**Value For Money**15%
*“Good price”*
**Cutting/Trimming**14%
*“Good blades”*
**Quality-Overall**13%
*“Quality blades”*
**Assembly/Installation**6%
*“ready to install”*
**Durability**6%
*“They are durable so far”*
**Advertised Vs Actual Product**5%
*“As advertised”*
**Ease Of Use**2%
*“makes the job much easier with basic tools”*
**Ease Of Cleaning**2%
*“they delivered a clean”*
**Strength**2%
*“They are balanced well”*
### **What buyers complain about **
**Size-Overall**23%
*“Does not fit the John Deere S140”*
**Advertised Vs Actual Product**10%
*“Does not fit jd425 ztr mower as advertised”*
**Thickness**9%
*“possibly thicker than the current set”*
**Assembly/Installation**7%
*“there was noticeable vibration that made the install experience more frustrating than it should have been”*
**Durability**6%
*“Did not last long”*
**Mounting**5%
*“The blade is not machined out to compensate for the nut width”*
**Ease Of Use**5%
*“They work; they are extremely difficult to sharpen due to multiple angles where the blade is bent when being made”*
**Weight Heavy**4%
*“These feel slightly heavier”*
**Cutting/Trimming**3%
*“don't seem to cut any better than any others I've used”*
**Value For Money**3%
*“These are a bit less expensive than the other set”*
### **Top return reasons **
**Size-Overall**57%
**Advertised Vs Actual Product**16%
**Shape/Style**6%
**Mounting**5%
**Defective Material/Parts**4%
**Compatibility-Overall**3%
**Functionality-Overall**3%
**Cutting/Trimming**2%
**Value For Money**1%
**Maintenance And Repair**1%
## **Common questions**
- **Is john deere d140 blades profitable to sell on Amazon United States?**
- The niche generates $39K/yr across 19 tracked products. 3 of 4 products launched in the last 360 days are still selling. 90-day search growth is +146.3%. Flapen's verdict: Worth a look (62/100).
- **How competitive is the john deere d140 blades niche?**
- 17 brands and 31 sellers compete. The top 5 products take 60% of clicks and top 5 brands hold 65% of demand.
- **What do buyers complain about in john deere d140 blades?**
- Top complaints mined from reviews: Size-Overall, Advertised Vs Actual Product, Thickness. The return rate is 1.1%.
- **When does demand for john deere d140 blades peak?**
- Demand peaks in Apr–May–Jun–Jul–Aug; the busiest month runs 13.6× the quietest.
- **What does it cost to enter the john deere d140 blades niche?**
- Listings span $24.56–$46.84; the average listing price is $31.02 (sweet spot $15–$100). The average incumbent carries 488 reviews — the moat a new listing must climb.
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