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50

john deere d140 parts

Worth a look

Shows low returns (0.4%), but a small market ($55K/yr) keeps it on the watch list.

Market size 14Growth 68Conversion 80Competition 34Returns 98Price range 82Avg price 83Brand share 14Review moat 67Quality gap 14

Returns

Incredible0.4%

return rate — above 5% kills the launch gate

Avg price

Great$18.19

avg listing price — sweet spot $15–$100

Price range

Great$6.47–$59.50

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

Conversion

Great8.2%

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

Growth

Good+49.3%

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

Review moat

Good811.14

avg incumbent reviews — the moat a new listing must climb

Competition

Okay65%

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

Market size

Bad$55K

$55K/yr · 37K searches

Brand share

Bad94%

top-5 brand share — brand-locked demand

Quality gap

Bad4.8★

avg incumbent rating — lower means beatable quality

According to Flapen's Amazon United States niche tracking, john deere d140 parts is a $55K/yr Amazon United States market (37K searches/yr). The top 5 brands hold 94% of demand. Demand peaks in Apr–May–Oct. Verdict: Worth a look — 50/100.

Data updated Jul 9, 2026 · scored weekly · How we score niches

john deere d140 parts market data

Units sold / yr
4K–5K
avg 250–500/product
Revenue / yr
$73K–$91K
units × avg price
Conversion rate
8.2%
Avg BSR
#464
Page quality
0%
Prime
64%
Sponsored
41%
Out of stock
0.0%
Avg brand age
97 months
Avg seller age
160 days

Competition & brand share

The top 5 products take 65% of clicks — established leaders, but buyers still shop beyond them.

Brands

9 rising

Sellers

53

Top-5 brand share

94%

Top 20: 100%

Top-5 click share

65%

Top 20: 98%

Open market

3%

  • Honda58%
  • STP18%
  • KINDZA9%
  • Valvoline5%
  • Single Cylinder Repair4%
  • Generic2%
  • Open — no brand owns it (3 brands, 3%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +49.3% search growth over the last 90 days.
2K1KSpike '24Spike '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Apr, May, Oct · busiest ÷ quietest = 5.9×

Top john deere d140 parts search terms

  • honda lawn mower oil14K/yr
  • honda mower oil6K/yr
  • 4 stroke oil8K/yr
  • honda lawnmower oil4K/yr
  • generator oil 10w305K/yr
All search terms

Top john deere d140 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%5%$3K10%$5K15%$8K20%$11K1101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 22 tracked products in this niche — three views at once, no toggling.

What buyers say about john deere d140 parts

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

What buyers love

Quality-Overall25%

“A quality oil from a trusted brand”

Lubrication16%

“Good lubricant”

Advertised Vs Actual Product14%

“As advertised”

Value For Money13%

“a reasonable price”

Assembly/Installation6%

“Delivered fast, and installed even faster”

Size-Overall5%

“It was perfect fit”

Motor Power4%

“My Engine loves it”

Ease Of Use4%

“Easy to use”

Efficiency2%

“Put it in my lawn mower ran great”

Correct Contents2%

“Includes all items indicated”

What buyers complain about

Value For Money21%

“Could be a little bit cheaper on the price”

Size-Overall15%

“Too small amount”

Leak-Proof8%

“It came damaged and leaking oil”

Motor Issues8%

“wanted Valvoline for the engine”

Durability4%

“filter barely lasted a half season”

Filtration4%

“filter barely lasted a half season”

Heating4%

“Before, it would stop as soon as it started, which was very troublesome, especially when it was cold”

Defective Material/Parts4%

“hard to find parts”

Top return reasons

Value For Money19%
Compatibility-Overall18%
Leak-Proof15%
Lubrication13%
Advertised Vs Actual Product8%
Size-Overall6%
Defective Material/Parts5%
Functionality-Overall4%
Motor Issues2%
Product Condition1%

Common questions

Is john deere d140 parts profitable to sell on Amazon United States?
The niche generates $55K/yr across 22 tracked products. 0 of 3 products launched in the last 360 days are still selling. 90-day search growth is +49.3%. Flapen's verdict: Worth a look (50/100).
How competitive is the john deere d140 parts niche?
9 brands and 53 sellers compete. The top 5 products take 65% of clicks and top 5 brands hold 94% of demand.
What do buyers complain about in john deere d140 parts?
Top complaints mined from reviews: Value For Money, Size-Overall, Leak-Proof. The return rate is 0.4%.
When does demand for john deere d140 parts peak?
Demand peaks in Apr–May–Oct; the busiest month runs 5.9× the quietest.
What does it cost to enter the john deere d140 parts niche?
Listings span $6.47–$59.50; the average listing price is $18.19 (sweet spot $15–$100). The average incumbent carries 811 reviews — the moat a new listing must climb.