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john deere d140 parts

Skip it38/100

a small market ($55K/yr) — john deere d140 parts doesn't clear our bar today.

Market/yr

$55K

Growth (1y)

+82.8%

Products

22

Brands

9

was 5 a year ago

Sellers

53

Price range

$6.47–$59.50

Returns

0.4%

Rating

4.8★

38/100

Skip it

Scored 38/100 across market size, growth, competition, quality gap, and returns.

Market sizeGrowthCompetitionQuality gapReturns
Market size
3
×0.30
Growth
60
×0.30
Competition
38
×0.20
Quality gap
20
×0.10
Returns
96
×0.10

Demand

Weekly Amazon search volume, last 104 weeks — +82.8% year over year.
2K976.5Spike '24Spike '25Spike '26Jul '24Nov '24Mar '25Jul '25Nov '25Mar '26

Seasonality

Monthly demand index across the year — 1.00 is average.

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

Competition

58%Honda
  • Honda58%
  • STP18%
  • KINDZA9%
  • Valvoline5%
  • Single Cylinder Repair4%
  • Generic2%
  • Other (3 brands)3%

The top 5 products take 65% of clicks — established leaders, but buyers still shop beyond them. 9 brands and 53 sellers compete here.

Brands

9 rising

was 5 a year ago

Sellers

53

Top 5 brand share

94%

#ProductBrandPriceRatingReviewsClick shareTrend
3Honda$9.474.8★1,83314%falling
4Honda$23.044.8★3,31411%flat
5Honda$13.424.8★1,0347%rising
6Honda$13.784.8★7566%rising
13Valvoline$6.474.8★6581%rising
14Honda$13.424.8★4831%rising

Product shelf

All 22 tracked products in this niche.

Reviews

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%

Data scraped July 9, 2026 · Marketplace baseline: 4.4★ avg rating · $22.72 median price · 2.2% median returns across 14,813 tracked niches.