Is onan 5500 oil change kit profitable to sell on Amazon United States?

The niche generates $134K/yr across 16 tracked products. 1 of 4 products launched in the last 360 days are still selling. 90-day search growth is +32.7%. Flapen's verdict: Worth a look (56/100).

How competitive is the onan 5500 oil change kit niche?

12 brands and 55 sellers compete. The top 5 products take 61% of clicks and top 5 brands hold 82% of demand.

What do buyers complain about in onan 5500 oil change kit?

Top complaints mined from reviews: Filtration, Size-Overall, Quality-Overall. The return rate is 0.8%.

When does demand for onan 5500 oil change kit peak?

Demand peaks in Jul–Aug; the busiest month runs 3.3× the quietest.

What does it cost to enter the onan 5500 oil change kit niche?

Listings span $16.24–$151.91; the average listing price is $55.97 (sweet spot $15–$100). The average incumbent carries 368 reviews — the moat a new listing must climb.

onan 5500 oil change kit

Worth a look

Shows low returns (0.8%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Returns

Incredible0.8%

return rate — above 5% kills the launch gate

Avg price

Great$55.97

avg listing price — sweet spot $15–$100

Review moat

Great367.5

avg incumbent reviews — the moat a new listing must climb

Conversion

Great8.3%

search→purchase rate — share of searches ending in a sale

Price range

Good$16.24–$151.91

cheapest to priciest tracked listing — scored on the share inside $15–$100

Growth

Good+32.7%

90-day search growth — must beat 0% to launch

Competition

Okay61%

top-5 click share — leaders hold, buyers still browse

Brand share

Okay82%

top-5 brand share — brands hold most of the demand

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Market size

Okay$134K

$134K/yr · 29K searches

Signals High Price

According to Flapen's Amazon United States niche tracking, onan 5500 oil change kit is a $134K/yr Amazon United States market (29K searches/yr). The top 5 brands hold 82% of demand. Demand peaks in Jul–Aug. Verdict: Worth a look — 56/100.

Data updated Jul 9, 2026 · scored weekly · How we score niches

onan 5500 oil change kit market data

Units sold / yr: 3K–3K; avg 100–250/product
Revenue / yr: $140K–$168K; units × avg price
Conversion rate: 8.3%
Avg BSR: #1,259
Page quality: 0%
Prime: 94%
Sponsored: 56%
Out of stock: 3.7%
Avg brand age: 33 months
Avg seller age: 184 days

Competition & brand share

The top 5 products take 61% of clicks — established leaders, but buyers still shop beyond them.

Brands

12 rising

Sellers

Top-5 brand share

82%

Top 20: 100%

Top-5 click share

61%

Top 20: 100%

Open market

13%

GPS34%
Cummins22%
ATRACYPART13%
RARAYC8%
ZJTBLL6%
AULDAY5%
Open — no brand owns it (6 brands, 13%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +32.7% search growth over the last 90 days.

Peak months: Jul, Aug · busiest ÷ quietest = 3.3×

Open Trend

Top onan 5500 oil change kit 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 16 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

GPS GENERATOR PARTS SPECIALIST Tune Up Kit for Cummins Onan RV Generators 5500 and 7000 HGJAB HGJAC and commercial HGJAE with ONAMAX 15W40 Oil for use in Specs A - E

GPS$151.244.7★92 rev

Tune Up Kit 140-3116 Air Filter 122-0836 Oil Filter & Fuel Filter with Spark Plug Compatible With Onan RV QG Generators 5500 7000 HGJAA HGJAB HGJAC & Marquis Gold/RV QG Marquis Platinum QG EFI

ATRACYPART$30.454.4★288 rev

Onan OnaMax SAE 15W-40 Engine Oil 32 oz.

Cummins$16.244.8★1,058 rev

GPS Tune Up Kit for Onan RV Generators 5500 and 7000 HGJAB HGJAC and Commercial HGJAE

GPS$122.084.7★643 rev

Oil Change Kit 122-0836 Oil Filter & Fuel Filter 140-3116 Air Filter with Spark Plug Replacement for Onan 5500 7000 Generators Marquis Gold/RV QG Marquis Platinum QG EFI & HGJAA HGJAB HGJAC

RARAYC$30.914.8★34 rev

Newest

by launch date

149-2341 Fuel Filter 140-3116 Air Filter 122-0836 Oil Filter 167-1638 Sprk Plug Tune Up Kit Compatible With Onan RV QG 5500 7000 Marquis Gold Platinum EFI HGJAA HGJAB HGJAC

TuLeYiLe$31.9919 rev

10mo ago

Oil Change Tune Up Kit Fit For Onan RV QG Generators 5500 7000 HGJAA HGJAB HGJAC Includes 122-0836 Oil Filter 140-3116 Air Filter 149-2341-01 Fuel Filter E11015 Fuel Pump F5TC Spark Plug

ZJTBLL$31.4616 rev

10mo ago

FLTRUCKTOP Filter Kit for Onan RV QG Generators 5500 7000

FLTRUCKTOP$48.7916 rev

11mo ago

Oil Change Kit for Onan 5500 7000 Generators 122-0836 Oil Filter & 140-3116 Air Filter & 149-2341-01 Fuel Filter & E11015 Fuel Pump

BioLion$39.505 rev

11mo ago

Tune Up Kit for Onan RV QG 5500 7000 Generator Marquis Gold Platinum EF/HGJAA/HGJAB/HGJA with Parts 149-2341 Fuel Filter 140-3116 Air Filter 122-0836 Oil Filter&Wrench 167-1638 Spark Plug&Gap Tool

DingRan$32.8087 rev

1y ago

What buyers say about onan 5500 oil change kit

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

What buyers love

Size-Overall21%

“Everything fit perfectly”

Quality-Overall19%

“This is a quality kit”

Value For Money16%

“Worth Having”

Advertised Vs Actual Product12%

“Worked as described”

Ease Of Use8%

“Worked great and was easy to use”

Correct Contents4%

“Perfect kit”

Maintenance And Repair4%

“It's a complete kit with everything you need to do routine maintenance”

Motor Power3%

“Generator runs great”

Assembly/Installation3%

“straightforward installation”

Filtration2%

“The air filter seems to be of good quality”

What buyers complain about

Filtration26%

“Dont trust the fuel filter”

Size-Overall22%

“This kit does NOT fit the 7000 at all not even close”

Quality-Overall17%

“The air filter is the worst quality”

Advertised Vs Actual Product6%

“Parts did not match description”

Compatibility-Overall3%

“Not compatible”

Functionality-Overall3%

“Generator still not working”

Defective Material/Parts3%

“Was not all correct pieces for our generator”

Leak-Proof2%

“The other adapter nipples did not so after my first install I had to take it apart again to put on Teflon because it had a slow leak”

Top return reasons

Size-Overall29%

Filtration13%

Defective Material/Parts12%

Leak-Proof11%

Advertised Vs Actual Product10%

Value For Money6%

Compatibility-Overall4%

Assembly/Installation4%

Lubrication4%