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harley transmission oil

Skip it49/100

a small market ($191K/yr) — harley transmission oil doesn't clear our bar today.

Market/yr

$191K

Growth (1y)

+190.6%

Products

29

Brands

6

was 7 a year ago

Sellers

124

Price range

$13.19–$160.99

Returns

0.5%

Rating

4.8★

49/100

Skip it

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

Market sizeGrowthCompetitionQuality gapReturns
Market size
10
×0.30
Growth
76
×0.30
Competition
57
×0.20
Quality gap
20
×0.10
Returns
96
×0.10

Demand

Weekly Amazon search volume, last 44 weeks — +190.6% year over year.
2K1KSpike '25Spike '26Sep '25Oct '25Dec '25Feb '26Mar '26May '26

Competition

57%Red Line
  • Red Line57%
  • Bel-Ray34%
  • Twisted Choppers3%
  • Lucas Oil3%
  • 360 Twin2%
  • Maxima1%

The top 5 products take 52% of clicks — established leaders, but buyers still shop beyond them. 6 brands and 124 sellers compete here.

Brands

6 falling

was 7 a year ago

Sellers

124

Top 5 brand share

99%

#ProductBrandPriceRatingReviewsClick shareTrend
2Bel-Ray$13.194.8★75613%rising
5Bel-Ray$39.244.8★2386%rising

Product shelf

All 29 tracked products in this niche.

Reviews

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

What buyers love

Quality-Overall32%

“good quality, good price, fast shipping”

Lubrication12%

“Great lubrication”

Efficiency10%

“Works well”

Value For Money10%

“Worth buying”

Fuel Efficiency10%

“Better fuel economy”

Advertised Vs Actual Product9%

“As advertised”

Ease Of Cleaning7%

“Cleans good”

Ease Of Use3%

“Exactly What I Ordered And So Convenient”

Noise Level1%

“I read from others that it made the transmission quiet down”

Soft Feel1%

“this one hands down is the smoothest”

What buyers complain about

Value For Money24%

“Not worth the price”

Noise Level17%

“Was running a bit louder”

Leak-Proof8%

“one of the containers was leaking oil”

Advertised Vs Actual Product8%

“NOT COMPLETE as advertised”

Size-Overall4%

“The oil filter that it came with was not the correct size”

Lubrication4%

“It does NOT lubricate the bearings well at all”

Functionality-Overall4%

“Unsure how effective it is”

Thin4%

“Seemed thinner than original”

Grip4%

“Its slippery”

Quality-Overall4%

“Hard to find, not cheap”

Top return reasons

  • Leak-Proof29%
  • Compatibility-Overall24%
  • Value For Money10%
  • Advertised Vs Actual Product8%
  • Lubrication8%
  • Functionality-Overall6%
  • Fuel Efficiency3%
  • Size-Overall2%
  • Defective Material/Parts2%
  • Quality-Overall2%

Data scraped July 9, 2026 · Marketplace baseline: 4.4★ avg rating · $22.65 median price · 2.2% median returns across 14,117 tracked niches.