---
title: "918-06991 — $55K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/patio-lawn-garden/918-06991"
last_updated: "2026-08-09T06:16:30.311Z"
locale: en
meta:
description: "Niche score 64/100 · $55K/yr market · 10K 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 64/100 · $55K/yr market · 10K searches/yr. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "918-06991 — $55K/yr Amazon US Niche (2026) - Flapen"
---
# **918-06991**
**Worth a look**
Shows demand growing +209.6% this quarter, but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 14Growth 98Conversion 96Competition 44Returns 73Price range 95Avg price 95Brand share 76Review moat 89Quality gap 23
**Growth**
**Incredible****+209.6%**
90-day search growth — must beat 0% to launch
**Conversion**
**Incredible****13.3%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Incredible****$41.70**
avg listing price — sweet spot $15–$100
**Price range**
**Incredible****$21.22–$86.68**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Review moat**
**Great****229.39**
avg incumbent reviews — the moat a new listing must climb
**Brand share**
**Great****59%**
top-5 brand share — no brand owns this niche
**Returns**
**Good****2.1%**
return rate — above 5% kills the launch gate
**Competition**
**Okay****59%**
top-5 click share — leaders hold, buyers still browse
**Quality gap**
**Bad****4.6★**
avg incumbent rating — lower means beatable quality
**Market size**
**Bad****$55K**
$55K/yr · 10K 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")
According to Flapen's Amazon United States niche tracking, 918-06991 is a $55K/yr Amazon United States market (10K searches/yr). The top 5 brands hold 59% of demand. Verdict: Worth a look — 64/100.
Data updated Jul 16, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **918-06991 market data**
- **Units sold / yr**
- **1K–1K**
- avg 0–100/product
- **Revenue / yr**
- **$42K–$52K**
- units × avg price
- **Conversion rate**
- **13.3%**
- **Avg BSR**
- **#1,474**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **100%**
- **Out of stock**
- **7.1%**
- **Avg brand age**
- **49 months**
- **Avg seller age**
- **317 days**
## **Competition & brand share**
The top 5 products take 59% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**22 **▲rising
**Sellers**
**29**
**Top-5 brand share**
**59%**
Top 20: 100%
**Top-5 click share**
**59%**
Top 20: 100%
**Open market**
**35%**
- JYLEYJ18% - Fourtry13% - WELOVEHOME13% - UDC Parts8% - ILONPA6% - JSXDNWYJ6%
## **Top 918-06991 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%5%$3K10%$5K15%$8K20%$11K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 23 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**JYLEYJ 918-06991 618-06991 Spindle Assembly Fit for Troy Bilt 42 Pony 42 Inch Deck Bronco 42 TB42 Mower Parts MTD Craftsman T1000 T1200 T1400 T1800 Huskee LT4200 Lawn Mower Spindle (2 Pack)**JYLEYJ**$48.49**4.7★69 rev](https://www.amazon.com/dp/B0CSD6SH6D) [2**Fourtry Spindle Fit for Troy Bilt Pony Mower - 918-06991 Greaseable Spindle Assembly Fit for MTD Huskee Craftsman T1000 T1200 Deck Mower and Troy Bilt TB42 TB2246 Bronco 42 Tractor Replace 618-06991**Fourtry**$26.50**4.6★695 rev](https://www.amazon.com/dp/B098PZYMT4) [3**(2 Pack) Replacement Spindle Assembly for Craftsman Troy Bilt Cub Cadet Lawn Mower Replaces 918-06991 618-06991 for Huskee LT4200 Craftsman T1000 T1200 T1400 T1800 Mandrel Assembly 42 Mower Deck**WELOVEHOME**$43.22**4.5★211 rev](https://www.amazon.com/dp/B0C2PPZC8P) [4**UDC Parts 918-06991 Spindle Assembly Replacement for Cub Cadet 42 Inch Troy Bilt 13WV78KS011 Pony 618-06991 91806991 Craftsman T1000 T1200 T1400 T1800 MTD Murray**UDC Parts**$25.90**4.6★233 rev](https://www.amazon.com/dp/B0D7Z8GXX2) [5**ILONPA (2 Pack 618-06991 918-06991 42 inch Deck Mower Spindle Assembly Replaces for Troy Bilt MTD Craftsman T1000 T1400 T1200 T1800 TB42 TB2246 for Huskee LT4200 Bronco Tractor**ILONPA**$45.02**4.6★147 rev](https://www.amazon.com/dp/B09NDGXXB3)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**UPOW 918-06991 Greaseable Spindle Assembly Fit for Troy Bilt Pony Mower Compatible with MTD Huskee Craftsman T1000 T1200 Deck Mower Troy Bilt TB42 TB2246 Bronco 42 Tractor Replace 618-06991**UPOW**$25.82**8 rev1y ago](https://www.amazon.com/dp/B0DTKHNBQQ) [**POSFLAG 2 Pack 918-06991 Spindle Assembly Greased with 954-04060C Deck Belt 490-900-M061 Deck Wash Kit Replaces 918 06991 618-06991 91806991 for Huskee LT4200 Craftsman T110 Troy Bilt Bronco 42 Decks**POSFLAG**$46.57**2 rev1y ago](https://www.amazon.com/dp/B0DNJCSNPS) [**UDC Parts 918-06991 Spindle Assembly Replacement for Cub Cadet 42 Inch Troy Bilt 13WV78KS011 Pony 618-06991 91806991 Craftsman T1000 T1200 T1400 T1800 MTD Murray**UDC Parts**$25.90**233 rev2y ago](https://www.amazon.com/dp/B0D7Z8GXX2) [**TENGMUJX 42 Inch Deck Rebuild Kit for Huskee LT4200 Craftsman T1200 T1000 T1400 T100 T110 Troy Bilt Pony Bronco TB42 Mower Includes 2 Spindle 618-06991 918-06991 2 Blade 742-04312 1 Belt 754-04060**TENGMUJX**$86.68**41 rev2y ago](https://www.amazon.com/dp/B0CT5G4724) [**JYLEYJ 918-06991 618-06991 Spindle Assembly Fit for Troy Bilt 42 Pony 42 Inch Deck Bronco 42 TB42 Mower Parts MTD Craftsman T1000 T1200 T1400 T1800 Huskee LT4200 Lawn Mower Spindle (2 Pack)**JYLEYJ**$48.49**69 rev2y ago](https://www.amazon.com/dp/B0CSD6SH6D)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**POSFLAG 2 Pack 918-06991 Spindle Assembly for Troy Bilt Pony 42 Inch Decks**POSFLAG**$45.10**4.8★**▲ 86%**](https://www.amazon.com/dp/B0CLJ1JVBR) [**ranwin 918-04822B Spindle Assembly Fit for Craftsman Cub Cad Troy Bilt Pony Bronco 42 Deck Tractor Riding Mower Replace 918-04822A 618-04822 Including Threaded Bolt &Hole 2 Pack**ranwin**$47.43**4.8★**▲ 75%**](https://www.amazon.com/dp/B09NLMS68Z) [**Youxmoto 618-04822 LT1500 LTX1042 Spindle Assembly with Pulley Fit for 42 Deck Troy-Bilt Cub Cadet LTX1040 60 Deck ZT1-60 ZT2-60 Replaces 918-04822B 918-04889 (2 Pcs)**Youxmoto**$45.47**4.5★**▲ 75%**](https://www.amazon.com/dp/B094ZNLR6H) [**918-06991 618-06991 Spindle Assembly for MTD Troy Bilt Bronco Pony 42 TB42 MTD CraftsMan 42 Deck T1000 T1200 T1400 T1300 T1800 LT4200 CLT42G CLT42H T130(2 Pack)**Aeagle**$46.85**4.5★**▲ 65%**](https://www.amazon.com/dp/B09X2QWJ6Z) [**GYZJ Lawn Mower Spindle for MTD Troy-Bilt Craftsman Columbia Huskee Murray 42 inch Deck Lawn Tractors Mandrel Assembly Replacement Part Number 918-06991 618-06991 2-Pack**GYZJ**$43.98**4.3★**▲ 63%**](https://www.amazon.com/dp/B0CRRQV171)
**~~View all trending →~~**
## **What buyers say about 918-06991**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Size-Overall**45%
*“Fit perfect”*
**Quality-Overall**13%
*“Appears to be good quality”*
**Value For Money**9%
*“Worth the money”*
**Assembly/Installation**8%
*“Easy to install”*
**Advertised Vs Actual Product**7%
*“Exactly what I was looking for”*
**Durability**4%
*“Has been durable”*
**Ease Of Use**4%
*“Works very good goes on very easy”*
**Design-Overall**3%
*“They look well built”*
**Strength**3%
*“Solidly built”*
**Maintenance And Repair**1%
*“No modification needed”*
### **What buyers complain about **
**Size-Overall**35%
*“Wrong pulley diameter”*
**Quality-Overall**25%
*“Cheap junk”*
**Durability**15%
*“One of the spindle welds on the pulley came apart only after about 20 hours of use”*
**Mounting**5%
*“I didn't get blade mounting nuts”*
**Ease Of Use**3%
*“Was hard to put on”*
### **Top return reasons **
**Size-Overall**58%
**Assembly/Installation**13%
**Advertised Vs Actual Product**10%
**Defective Material/Parts**5%
**Mounting**2%
**Add-Ons/Attachments**2%
**Mechanism Issues**2%
**Value For Money**2%
**Maintenance And Repair**2%
**Design-Overall**1%
## **Common questions**
- **Is 918-06991 profitable to sell on Amazon United States?**
- The niche generates $55K/yr across 23 tracked products. 90-day search growth is +209.6%. Flapen's verdict: Worth a look (64/100).
- **How competitive is the 918-06991 niche?**
- 22 brands and 29 sellers compete. The top 5 products take 59% of clicks and top 5 brands hold 59% of demand.
- **What do buyers complain about in 918-06991?**
- Top complaints mined from reviews: Size-Overall, Quality-Overall, Durability. The return rate is 2.1%.
- **What does it cost to enter the 918-06991 niche?**
- Listings span $21.22–$86.68; the average listing price is $41.70 (sweet spot $15–$100). The average incumbent carries 229 reviews — the moat a new listing must climb.
## **Related niches in Patio, Lawn & Garden**
- 82 [**lawn aerator**](https://flapen.com/research/us/patio-lawn-garden/lawn-aerator)$6.2M/yr+90.1%**Launch it**- 82 [**shepherds hooks for outdoor**](https://flapen.com/research/us/patio-lawn-garden/shepherds-hooks-for-outdoor)$3.9M/yr+141.2%**Launch it**- 82 [**garden mesh**](https://flapen.com/research/us/patio-lawn-garden/garden-mesh)$716K/yr+152.7%**Worth a look**- 83 [**chicken waterer**](https://flapen.com/research/us/patio-lawn-garden/chicken-waterer)$3.4M/yr+70.1%**Launch it**- 83 [**75 foot garden hose**](https://flapen.com/research/us/patio-lawn-garden/75-foot-garden-hose)$1.8M/yr+117.6%**Launch it**- 83 [**bird deterrents for outside**](https://flapen.com/research/us/patio-lawn-garden/bird-deterrents-for-outside)$2.1M/yr+131.5%**Launch it**[**All Patio, Lawn & Garden niches **](https://flapen.com/research/us/patio-lawn-garden)