onan generator oil
Skip itA concentrated shelf (top 5 take 100% of clicks) — this niche doesn't clear our bar today.
Conversion
Incredible16.6%search→purchase rate — share of searches ending in a sale
Returns
Incredible0.5%return rate — above 5% kills the launch gate
Avg price
Incredible$35.96avg listing price — sweet spot $15–$100
Price range
Incredible$16.24–$53.83cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Great399.25avg incumbent reviews — the moat a new listing must climb
Growth
Good+23.3%90-day search growth — must beat 0% to launch
Quality gap
Bad4.8★avg incumbent rating — lower means beatable quality
Market size
Bad$41K$41K/yr · 7K searches
Competition
Bad100%top-5 click share — a locked-up shelf
Brand share
Bad100%top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, onan generator oil is a $41K/yr Amazon United States market (7K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Jun–Jul–Aug. Verdict: Skip it — 43/100.
Data updated Jul 9, 2026 · scored weekly · How we score niches
onan generator oil market data
- Units sold / yr
- 2K–2K
- avg 250–500/product
- Revenue / yr
- $54K–$72K
- units × avg price
- Conversion rate
- 16.6%
- Avg BSR
- #649
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 0%
- Out of stock
- 0.0%
- Avg brand age
- 62 months
- Avg seller age
- 188 days
Competition & brand share
The top 5 products capture 100% of clicks — a locked-up shelf that new listings rarely crack.Brands
2 falling
Sellers
33
Top-5 brand share
100%
Top 20: 100%
Top-5 click share
100%
Top 20: 100%
Open market
0%
- Cummins93%
- RV Wholesale Direct7%
Demand & seasonality
Weekly Amazon search volume, last 58 weeks — +23.3% search growth over the last 90 days.Peak months: Jun, Jul, Aug · busiest ÷ quietest = 2.7×
Top onan generator oil search terms
- onan generator oil3K/yr
- onan oil3K/yr
- onamax 15w40 oil1K/yr
Top onan generator 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.
All 4 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Onan OnaMax SAE 15W-40 Engine Oil 32 oz.
Cummins$16.244.8★1,058 rev
Cummins 3265336 Onan SAE 15W-40 Oil - 1 Quart (Quantity 3)
Cummins$45.144.9★212 rev
OnaMax SAE10W-30 - (A063E183) (2)
RV Wholesale Direct$53.834.8★18 rev
Cummins 3265336 Onan SAE 15W-40 Oil - 1 Quart Quantity 2
Cummins$28.634.8★309 rev
Newest
by launch dateOnaMax SAE10W-30 - (A063E183) (2)
RV Wholesale Direct$53.8318 rev
Cummins 3265336 Onan SAE 15W-40 Oil - 1 Quart (Quantity 3)
Cummins$45.14212 rev
Cummins 3265336 Onan SAE 15W-40 Oil - 1 Quart Quantity 2
Cummins$28.63309 rev
Onan OnaMax SAE 15W-40 Engine Oil 32 oz.
Cummins$16.241,058 rev
Trending
90-day click momentumWhat buyers say about onan generator oil
What buyers praise and complain about, mined from review topics.What buyers love
“Top quality”
“Great price”
“Perfect quantity”
“Using the manufacturer-recommended oil just makes sense”
“High-quality makes my generator run really good”
“Exactly what I needed”
Top return reasons
Common questions
- Is onan generator oil profitable to sell on Amazon United States?
- The niche generates $41K/yr across 4 tracked products. 90-day search growth is +23.3%. Flapen's verdict: Skip it (43/100).
- How competitive is the onan generator oil niche?
- 2 brands and 33 sellers compete. The top 5 products take 100% of clicks and top 5 brands hold 100% of demand.
- When does demand for onan generator oil peak?
- Demand peaks in Jun–Jul–Aug; the busiest month runs 2.7× the quietest.
- What does it cost to enter the onan generator oil niche?
- Listings span $16.24–$53.83; the average listing price is $35.96 (sweet spot $15–$100). The average incumbent carries 399 reviews — the moat a new listing must climb.