---
title: "Onan 5500 Oil Change Kit — $134K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/automotive/onan-5500-oil-change-kit"
last_updated: "2026-08-10T13:23:34.605Z"
locale: en
meta:
description: "Niche score 56/100 · $134K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 56/100 · $134K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Onan 5500 Oil Change Kit — $134K/yr Amazon US Niche (2026) - Flapen"
---
# **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.
Market size 30Growth 58Conversion 80Competition 40Returns 96Price range 62Avg price 91Brand share 38Review moat 82Quality gap 37
**Returns**
**Incredible****0.8%**
return rate — above 5% kills the launch gate
**Avg price**
**Great****$55.97**
avg listing price — sweet spot $15–$100
**Review moat**
**Great****367.5**
avg incumbent reviews — the moat a new listing must climb
**Conversion**
**Great****8.3%**
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**
**Okay****61%**
top-5 click share — leaders hold, buyers still browse
**Brand share**
**Okay****82%**
top-5 brand share — brands hold most of the demand
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Market size**
**Okay****$134K**
$134K/yr · 29K searches
**Signals**[** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")
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 ~~](https://flapen.com/research/methodology)
## **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**
**55**
**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.
1K750Spike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Jul, Aug · busiest ÷ quietest = 3.3×
[**Open Trend **](https://flapen.com/research/us/automotive/onan-5500-oil-change-kit/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.
0%5%$7K10%$13K15%$20K20%$27K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
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
[1**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**$151.24**4.7★92 rev](https://www.amazon.com/dp/B096YQ46V8) [2**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**$30.45**4.4★288 rev](https://www.amazon.com/dp/B0CFPPBGD3) [3**Onan OnaMax SAE 15W-40 Engine Oil 32 oz.**Cummins**$16.24**4.8★1,058 rev](https://www.amazon.com/dp/B00278MET8) [4**GPS Tune Up Kit for Onan RV Generators 5500 and 7000 HGJAB HGJAC and Commercial HGJAE**GPS**$122.08**4.7★643 rev](https://www.amazon.com/dp/B077Z821PS) [5**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**$30.91**4.8★34 rev](https://www.amazon.com/dp/B0D7HFXWQN)
**~~View all top sellers →~~**
### **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**$31.99**19 rev10mo ago](https://www.amazon.com/dp/B0FMWJD95C) [**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**$31.46**16 rev10mo ago](https://www.amazon.com/dp/B0FMDYVWXY) [**FLTRUCKTOP Filter Kit for Onan RV QG Generators 5500 7000**FLTRUCKTOP**$48.79**16 rev11mo ago](https://www.amazon.com/dp/B0FK4BTMR7) [**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**$39.50**5 rev11mo ago](https://www.amazon.com/dp/B0FK295NMD) [**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**$32.80**87 rev1y ago](https://www.amazon.com/dp/B0DK26W6PM)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Tune Up Kit for Onan RV Generators 5500 and 7000 HGJAA HGJAB and HGJAC with UGP Oil Filter Wrench by Universal Generator Parts**Universal Generator Part**$90.76**4.4★**▲ 257%**](https://www.amazon.com/dp/B08Q1SR11S) [**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**$31.46**4.3★**▲ 167%**](https://www.amazon.com/dp/B0FMDYVWXY) [**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**$39.50**3.9★**▲ 70%**](https://www.amazon.com/dp/B0FK295NMD) [**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**$30.91**4.8★**▲ 67%**](https://www.amazon.com/dp/B0D7HFXWQN) [**CUMMINS NW Cummins Onan 122-0836 Oil Filter (Packaging May Vary)**Cummins**$32.53**4.6★**▲ 54%**](https://www.amazon.com/dp/B000BRCKTG)
**~~View all trending →~~**
## **What buyers say about onan 5500 oil change kit**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Size-Overall**21%
*“Everything fit perfectly”*
**Quality-Overall**19%
*“This is a quality kit”*
**Value For Money**16%
*“Worth Having”*
**Advertised Vs Actual Product**12%
*“Worked as described”*
**Ease Of Use**8%
*“Worked great and was easy to use”*
**Correct Contents**4%
*“Perfect kit”*
**Maintenance And Repair**4%
*“It's a complete kit with everything you need to do routine maintenance”*
**Motor Power**3%
*“Generator runs great”*
**Assembly/Installation**3%
*“straightforward installation”*
**Filtration**2%
*“The air filter seems to be of good quality”*
### **What buyers complain about **
**Filtration**26%
*“Dont trust the fuel filter”*
**Size-Overall**22%
*“This kit does NOT fit the 7000 at all not even close”*
**Quality-Overall**17%
*“The air filter is the worst quality”*
**Advertised Vs Actual Product**6%
*“Parts did not match description”*
**Compatibility-Overall**3%
*“Not compatible”*
**Functionality-Overall**3%
*“Generator still not working”*
**Defective Material/Parts**3%
*“Was not all correct pieces for our generator”*
**Leak-Proof**2%
*“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-Overall**29%
**Filtration**13%
**Defective Material/Parts**12%
**Leak-Proof**11%
**Advertised Vs Actual Product**10%
**Value For Money**6%
**Compatibility-Overall**4%
**Assembly/Installation**4%
**Lubrication**4%
**Functionality-Overall**3%
## **Common questions**
- **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.
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