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th350 dipstick

Skip it49/100

a small market ($43K/yr) — th350 dipstick doesn't clear our bar today.

Market/yr

$43K

Growth (1y)

+239.9%

Products

18

Brands

13

was 17 a year ago

Sellers

82

Price range

$16.70–$62.30

Returns

3.2%

Rating

3.8★

49/100

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Scored 49/100 across market size, growth, competition, quality gap, and returns.

Market sizeGrowthCompetitionQuality gapReturns
Market size
2
×0.30
Growth
81
×0.30
Competition
38
×0.20
Quality gap
90
×0.10
Returns
75
×0.10

Demand

Weekly Amazon search volume, last 60 weeks — +239.9% year over year.
736368Spike '25Spike '26May '25Jul '25Oct '25Dec '25Feb '26May '26

Seasonality

Monthly demand index across the year — 1.00 is average.

No pronounced peak months · busiest ÷ quietest = 1.4×

Competition

45%HAHAHA
  • HAHAHA45%
  • ProForm19%
  • Allstar Performance9%
  • AXGSRV5%
  • Mr. Gasket3%
  • UOIENRT3%
  • Other (7 brands)15%

The top 5 products take 65% of clicks — established leaders, but buyers still shop beyond them. 13 brands and 82 sellers compete here.

Brands

13 falling

was 17 a year ago

Sellers

82

Top 5 brand share

82%

#ProductBrandPriceRatingReviewsClick shareTrend
3ProForm$38.664.4★22312%flat
4ProForm$37.094.2★1548%rising
6Allstar Performance$62.174.8★505%rising
8Mr. Gasket$32.464.0★553%rising

Product shelf

All 18 tracked products in this niche.

Reviews

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

What buyers love

Quality-Overall29%

“Best replacement dipstick”

Size-Overall22%

“Fit Perfect”

Leak-Proof14%

“No leaks”

Advertised Vs Actual Product6%

“Works as expected”

Assembly/Installation6%

“Installation was straightforward”

Shape/Style5%

“looks pretty”

Ease Of Use5%

“easy to do”

Strength3%

“Now its rock solid and works well”

Design-Overall1%

“The look and design of this dipstick is great”

Ease Of Cleaning1%

“It looks much cleaner in the engine bay”

What buyers complain about

Size-Overall23%

“Doesnt fit a th 400 like it says”

Leak-Proof19%

“Leaks horribly”

Quality-Overall18%

“Bad quality control”

Natural Resource Wastage5%

“Waste of time and money”

Product Condition5%

“it was used”

Flexibility5%

“Gonna have to bend it to straighten it out”

Assembly/Installation5%

“Don't buy unless you want to repair it before installing”

Mounting3%

“Had to adjust the mounting tab as it was bent”

Measurement/Reading Accuracy3%

“This thing is WILDLY inaccurate”

Thickness3%

“Too thick to fit”

Top return reasons

  • Size-Overall42%
  • Compatibility-Overall19%
  • Mounting7%
  • Defective Material/Parts6%
  • Leak-Proof5%
  • Advertised Vs Actual Product4%
  • Functionality-Overall4%
  • Add-Ons/Attachments2%
  • Adhesion/Stickiness2%
  • Assembly/Installation2%

Data scraped July 9, 2026 · Marketplace baseline: 4.4★ avg rating · $22.74 median price · 2.2% median returns across 13,649 tracked niches.