---
title: "Harley Primary Oil — $93K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/automotive/harley-primary-oil"
last_updated: "2026-08-10T23:50:26.924Z"
locale: en
meta:
description: "Niche score 58/100 · $93K/yr market · 45K 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 58/100 · $93K/yr market · 45K searches/yr. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Harley Primary Oil — $93K/yr Amazon US Niche (2026) - Flapen"
---
# **harley primary oil**
**Worth a look**
Shows low returns (0.4%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 23Growth 96Conversion 63Competition 47Returns 98Price range 87Avg price 95Brand share 33Review moat 68Quality gap 14
**Returns**
**Incredible****0.4%**
return rate — above 5% kills the launch gate
**Growth**
**Incredible****+155.1%**
90-day search growth — must beat 0% to launch
**Avg price**
**Incredible****$37.27**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$11.06–$105.58**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Review moat**
**Good****787.67**
avg incumbent reviews — the moat a new listing must climb
**Conversion**
**Good****5.6%**
search→purchase rate — share of searches ending in a sale
**Competition**
**Okay****57%**
top-5 click share — leaders hold, buyers still browse
**Brand share**
**Okay****85%**
top-5 brand share — brands hold most of the demand
**Market size**
**Bad****$93K**
$93K/yr · 45K searches
**Quality gap**
**Bad****4.8★**
avg incumbent rating — lower means beatable quality
**Signals**[** Trending**](https://flapen.com/research/niches?market=us&signal=trending "Search growth > 100% (90d)")
According to Flapen's Amazon United States niche tracking, harley primary oil is a $93K/yr Amazon United States market (45K searches/yr). The top 5 brands hold 85% of demand. Demand peaks in Apr–May–Jun–Jul–Aug. Verdict: Worth a look — 58/100.
Data updated Jul 9, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **harley primary oil market data**
- **Units sold / yr**
- **3K–4K**
- avg 100–250/product
- **Revenue / yr**
- **$112K–$149K**
- units × avg price
- **Conversion rate**
- **5.6%**
- **Avg BSR**
- **#317**
- **Page quality**
- **0%**
- **Prime**
- **86%**
- **Sponsored**
- **48%**
- **Out of stock**
- **0.7%**
- **Avg brand age**
- **83 months**
- **Avg seller age**
- **133 days**
## **Competition & brand share**
The top 5 products take 57% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**11 **▼falling
**Sellers**
**204**
**Top-5 brand share**
**85%**
Top 20: 100%
**Top-5 click share**
**57%**
Top 20: 99%
**Open market**
**11%**
- Bel-Ray25% - Lucas Oil25% - Maxima17% - Red Line14% - Schaeffer Manufacturing Co5% - Quicksilver3% - Open — no brand owns it (5 brands, 11%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +155.1% search growth over the last 90 days.
3K2KSpike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Apr, May, Jun, Jul, Aug · busiest ÷ quietest = 7.4×
[**Open Trend **](https://flapen.com/research/us/automotive/harley-primary-oil/trend)
## **Top harley primary oil search terms**
- **harley primary oil**16K/yr+122.2%5.5% conv. - **primary oil for harley davidson**12K/yr+173.5%5.0% conv. - **amsoil primary oil for harley davidson**8K/yr+182.1%1.5% conv. - **harley davidson primary oil**5K/yr+176.9%5.4% conv. - **primary oil**4K/yr+171.4%5.1% conv. [**All search terms **](https://flapen.com/research/us/automotive/harley-primary-oil/search-terms)
## **Top harley primary oil 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%10%$9K20%$19K30%$28K40%$37K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 21 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Lucas Oil 10790 Primary Chaincase Oil - 1 Quart**Lucas Oil**$11.06**4.8★991 rev](https://www.amazon.com/dp/B005MZD0NM) [2**Bel-Ray V-Twin Primary Chaincase Lubricant | 1 Liter | SKU: 96920-BT1 | Pack of 1**Bel-Ray**$11.69**4.6★45 rev](https://www.amazon.com/dp/B007GR7Q7A) [3**V-Twin Primary Oil**Maxima**$13.03**4.8★634 rev](https://www.amazon.com/dp/B00KBTYJ3E) [4**Bel-Ray V-Twin Primary Chaincase Lubricant | 1 Liter | SKU: 96920-BT1**Bel-Ray**$16.90**4.8★557 rev](https://www.amazon.com/dp/B007GR8NS6) [5**Red Line 42904 V-Twin Primary Case Oil for use with UTVs ATVs and Sportbikes - 1 Quart**Red Line**$20.09**4.8★2,754 rev](https://www.amazon.com/dp/B0053O9EUA)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**360 Twin Premium Gear & Chaincase Oil 1 Quart Mineral Motorcycle Transmission & Primary Chaincase Lubricant for 1971+ Harley-Davidson XR & XL Sportsters**360 Twin**$13.82**72 rev3y ago](https://www.amazon.com/dp/B0C95KRFXR) [**Oil Change Kit Compatible with Harley Filter Cap Wrench Crankcase Fill Tool Primary Case Oil Funnel Drip-Free Oil Filter Tool 30Pcs Drain Plug O-Rings**QHDSGZS**$19.83**1,171 rev3y ago](https://www.amazon.com/dp/B0C4XKXKZ9) [**Maxima Racing Oils 40-04901-2PK V-Twin Mineral Primary Oil 32 oz Bottle 2-Pack**Maxima**$28.04**634 rev5y ago](https://www.amazon.com/dp/B08ML8QSDM) [**Red Line 42904 V-Twin Primary Case Oil For use with UTVs ATVs and Sportbikes - 1 Quart (3 Pack)**Red Line**$53.19**2,754 rev6y ago](https://www.amazon.com/dp/B07SB7PMRC) [**Amsoil 20/50wt Full Synthetic V-Twin Motorcycle Oil**Amsoil**$104.00**173 rev6y ago](https://www.amazon.com/dp/B01L6ZWV9U)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Lucas Oil Primary Chain Case Oil - 1qt. 10790**Lucas Oil**$20.64**5.0★**▲ 100%**](https://www.amazon.com/dp/B01LRDGBSI) [**Maxima Racing Oils 40-04901-2PK V-Twin Mineral Primary Oil 32 oz Bottle 2-Pack**Maxima**$28.04**4.8★**▲ 88%**](https://www.amazon.com/dp/B08ML8QSDM) [**Bel-Ray V-Twin Primary Chaincase Lubricant | 1 Liter | SKU: 96920-BT1 | Pack of 1**Bel-Ray**$11.69**4.6★**▲ 58%**](https://www.amazon.com/dp/B007GR7Q7A) [**Bel-Ray Big Twin Transmission Oil Liter 96900-BT1QB**Bel-Ray**$13.19**4.8★**▲ 42%**](https://www.amazon.com/dp/B005K60FJK) [**Red Line 42904 V-Twin Primary Case Oil For use with UTVs ATVs and Sportbikes - 1 Quart (3 Pack)**Red Line**$53.19**4.8★**▲ 41%**](https://www.amazon.com/dp/B07SB7PMRC)
**~~View all trending →~~**
## **What buyers say about harley primary oil**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**33%
*“good quality, good price, fast shipping”*
**Lubrication**15%
*“Fast delivery, quality lubricants”*
**Value For Money**14%
*“Worth the money”*
**Advertised Vs Actual Product**8%
*“Works as needed”*
**Efficiency**7%
*“Engine runs smooth”*
**Ease Of Use**5%
*“Exactly What I Ordered And So Convenient”*
**Noise Level**2%
*“I read from others that it made the transmission quiet down”*
**Size-Overall**2%
*“Fit my 2000 Harley Fat boy”*
**Fuel Efficiency**2%
*“60k and doesnt burn a drop in 30 or 110 degree weather”*
**Adjustability/Rotatability/Reclining**1%
*“Seems to be good for easy shifts”*
### **What buyers complain about **
**Value For Money**13%
*“Too high price”*
**Filtration**13%
*“the oil filter filter needs some work not a perfect fit”*
**Size-Overall**12%
*“Incorrect size”*
**Lubrication**7%
*“Not enough fluid”*
**Grip**7%
*“Its slippery”*
**Thin**7%
*“Seemed thinner than original”*
**Advertised Vs Actual Product**7%
*“Misleading description”*
**Noise Level**7%
*“The engine wasn't as quiet either”*
**Material Quality**4%
*“Made out of cheap material”*
**Thickness**3%
*“at 10-40 i think it was a little thin”*
### **Top return reasons **
**Value For Money**21%
**Compatibility-Overall**16%
**Leak-Proof**14%
**Size-Overall**13%
**Advertised Vs Actual Product**13%
**Filtration**5%
**Defective Material/Parts**3%
**Material Quality**3%
**Quality-Overall**2%
**Functionality-Overall**2%
## **Common questions**
- **Is harley primary oil profitable to sell on Amazon United States?**
- The niche generates $93K/yr across 21 tracked products. 90-day search growth is +155.1%. Flapen's verdict: Worth a look (58/100).
- **How competitive is the harley primary oil niche?**
- 11 brands and 204 sellers compete. The top 5 products take 57% of clicks and top 5 brands hold 85% of demand.
- **What do buyers complain about in harley primary oil?**
- Top complaints mined from reviews: Value For Money, Filtration, Size-Overall. The return rate is 0.4%.
- **When does demand for harley primary oil peak?**
- Demand peaks in Apr–May–Jun–Jul–Aug; the busiest month runs 7.4× the quietest.
- **What does it cost to enter the harley primary oil niche?**
- Listings span $11.06–$105.58; the average listing price is $37.27 (sweet spot $15–$100). The average incumbent carries 788 reviews — the moat a new listing must climb.
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