---
title: "Engine Cleaner — $1.1M/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/automotive/engine-cleaner"
last_updated: "2026-08-10T19:06:17.591Z"
locale: en
meta:
description: "Niche score 58/100 · $1.1M/yr market · 738K searches/yr · $22.31 avg price. Clears our launch bar. Data updated Jul 2026."
"og:description": "Niche score 58/100 · $1.1M/yr market · 738K searches/yr · $22.31 avg price. Clears our launch bar. Data updated Jul 2026."
"og:title": "Engine Cleaner — $1.1M/yr Amazon US Niche (2026) - Flapen"
---
# **engine cleaner**
**Launch it**
A $1.1M/yr market growing +13.8% this quarter with returns at 0.4% — clears our launch bar.
Market size 79Growth 42Conversion 72Competition 34Returns 98Price range 82Avg price 93Brand share 38Review moat 39Quality gap 27
**Returns**
**Incredible****0.4%**
return rate — above 5% kills the launch gate
**Avg price**
**Great****$22.31**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$5.01–$66.88**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Market size**
**Great****$1.1M**
$1.1M/yr · 738K searches
**Conversion**
**Good****6.6%**
search→purchase rate — share of searches ending in a sale
**Growth**
**Okay****+13.8%**
90-day search growth — must beat 0% to launch
**Review moat**
**Okay****2,560.17**
avg incumbent reviews — the moat a new listing must climb
**Brand share**
**Okay****82%**
top-5 brand share — brands hold most of the demand
**Competition**
**Okay****64%**
top-5 click share — leaders hold, buyers still browse
**Quality gap**
**Okay****4.6★**
avg incumbent rating — lower means beatable quality
According to Flapen's Amazon United States niche tracking, engine cleaner is a $1.1M/yr Amazon United States market (738K searches/yr). The top 5 brands hold 82% of demand. Verdict: Launch it — 58/100.
Data updated Jul 9, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **engine cleaner market data**
- **Units sold / yr**
- **40K–50K**
- avg 1,500–2,000/product
- **Revenue / yr**
- **$892K–$1.1M**
- units × avg price
- **Conversion rate**
- **6.6%**
- **Avg BSR**
- **#41**
- **Page quality**
- **0%**
- **Prime**
- **78%**
- **Sponsored**
- **61%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **75 months**
- **Avg seller age**
- **141 days**
## **Competition & brand share**
The top 5 products take 64% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**9 **▼falling
**Sellers**
**103**
**Top-5 brand share**
**82%**
Top 20: 100%
**Top-5 click share**
**64%**
Top 20: 100%
**Open market**
**11%**
- Chemical Guys31% - Zep22% - Gunk12% - 3D9% - WD-40 Specialist7% - KRAKEN BOND7% - Open — no brand owns it (3 brands, 11%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +13.8% search growth over the last 90 days.
18K13KSpike '25Spike '26 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.8×
[**Open Trend **](https://flapen.com/research/us/automotive/engine-cleaner/trend)
## **Top engine cleaner search terms**
- **engine degreaser**174K/yr+15.6%7.7% conv. - **engine cleaner**147K/yr+14.3%3.4% conv. - **engine bay cleaner**64K/yr+2.9%3.9% conv. - **degreaser automotive**55K/yr+11.4%6.9% conv. - **gunk engine degreaser**41K/yr+36.1%5.2% conv. - **engine degreaser heavy duty**40K/yr+7.7%8.1% conv. - **desengrasante para motor de carro**34K/yr-26.6%2.5% conv. - **engine cleaner spray**28K/yr+1.8%4.5% conv. - **car engine cleaner**29K/yr+7.4%2.4% conv. - **industrial degreaser**15K/yr+29.0%2.6% conv. [**All search terms **](https://flapen.com/research/us/automotive/engine-cleaner/search-terms)
## **Top engine cleaner 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%$109K20%$218K30%$326K40%$435K101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 18 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Chemical Guys Signature Series Orange Degreaser Spray - Heavy Duty All Purpose Cleaner for Engines Tires Undercarriages Tools and More Professional Strength Breaks Down Grease Oil & Grime 16 oz**Chemical Guys**$11.33**4.6★7,682 rev](https://www.amazon.com/dp/B00DZI39UW) [2**Zep Cherry Bomb Auto+ Degreaser & Cleaner - For Auto Marine RV & Home - 1 Gallon**Zep**$11.32**4.6★442 rev](https://www.amazon.com/dp/B0F8P84K19) [3**3D Grand Blast Engine Degreaser Heavy Duty Biodegradable Cleaner for Engines Wheels Exhausts & More Fast-Acting Non-Staining Made in USA 1 Gallon**3D**$34.12**4.5★1,013 rev](https://www.amazon.com/dp/B0007RVL5Y) [4**Zep Cherry Bomb Auto+ Degreaser & Cleaner - For Auto Marine RV & Home - 32 oz.**Zep**$6.32**4.5★370 rev](https://www.amazon.com/dp/B0F8P66KV6) [5**KRAKEN BOND Engine Cleaner Spray - (2x12.3 fl. Oz) Engine Degreaser for Engine Bay Gunk and Motor | 2 Pack**KRAKEN BOND**$16.61**4.5★560 rev](https://www.amazon.com/dp/B0BRYCVNMP)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Gunk Engine Degreaser Original Degreaser Cleaner Spray Quickly Removes Tough Oil & Grease Cleans Hardworking Engines Rinses Easily with Water 15 oz (Case of 6)**Gunk**$29.22**203 rev10mo ago](https://www.amazon.com/dp/B0FPZK8RPY) [**Zep Cherry Bomb Auto+ Degreaser & Cleaner - For Auto Marine RV & Home - 1 Gallon**Zep**$11.32**442 rev1y ago](https://www.amazon.com/dp/B0F8P84K19) [**Zep Cherry Bomb Auto+ Degreaser & Cleaner - For Auto Marine RV & Home - 32 oz.**Zep**$6.32**370 rev1y ago](https://www.amazon.com/dp/B0F8P66KV6) [![CRC 05483 Heavy Duty Pro-Strength Degreaser 20 Wt Oz [1 Pack]](https://m.media-amazon.com/images/I/416dTJDjowL.jpg)**CRC 05483 Heavy Duty Pro-Strength Degreaser 20 Wt Oz \[1 Pack\]**CRC**$10.06**470 rev2y ago](https://www.amazon.com/dp/B0CRJRX7FY) [**KRAKEN BOND Engine Cleaner Spray - (2x12.3 fl. Oz) Engine Degreaser for Engine Bay Gunk and Motor | 2 Pack**KRAKEN BOND**$16.61**560 rev3y ago](https://www.amazon.com/dp/B0BRYCVNMP)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Gunk Engine Degreaser Original Degreaser Cleaner Spray Quickly Removes Tough Oil & Grease Cleans Hardworking Engines Rinses Easily with Water 15 oz (Case of 6)**Gunk**$29.22**4.6★**▲ 224%**](https://www.amazon.com/dp/B0FPZK8RPY) [**ZEP ZUHFD18 Foam Degreaser 18 oz**Zep**$5.01**4.4★**▲ 64%**](https://www.amazon.com/dp/B00FQT5SIO) [**Chemical Guys Signature Series Orange Degreaser Spray - Heavy Duty All Purpose Cleaner for Engines Tires Undercarriages Tools and More Professional Strength Breaks Down Grease Oil & Grime 16 oz**Chemical Guys**$11.33**4.6★**▲ 47%**](https://www.amazon.com/dp/B00DZI39UW) [**GUNK Engine Cleaner Foamy Spray for Engines with Plastic Covers Expanding Foam Quickly Removes Grease Oil Dirt & Road Grime - Clings to Surfaces for Easy Rinse 17 oz (Case of 12)**Gunk**$66.88**4.7★**▲ 28%**](https://www.amazon.com/dp/B00BGSF84I) [**Zep Cherry Bomb Auto+ Degreaser & Cleaner - For Auto Marine RV & Home - 1 Gallon**Zep**$11.32**4.6★**▲ 27%**](https://www.amazon.com/dp/B0F8P84K19)
**~~View all trending →~~**
## **What buyers say about engine cleaner**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Ease Of Cleaning**25%
*“It cleans well”*
**Quality-Overall**15%
*“Better than average”*
**Efficiency**11%
*“Works well”*
**Smell**10%
*“Good smell”*
**Value For Money**6%
*“Good price”*
**Advertised Vs Actual Product**5%
*“Works as advertised”*
**Strength**3%
*“Heavy duty”*
**Ease Of Use**3%
*“Easy to use”*
**Color**2%
*“Simple green is just the best”*
**Spray/Flow**2%
*“Awesome spray”*
### **What buyers complain about **
**Functionality-Overall**17%
*“This product does not work well”*
**Ease Of Cleaning**12%
*“this was on a worst case kind of mess”*
**Stain Resistance**10%
*“Also, may not take out the stain completely”*
**Strength**8%
*“Pretty weak stuff”*
**Leak-Proof**7%
*“the bottle leaks”*
**Smell**6%
*“Smells gross”*
**Value For Money**5%
*“waste of MONEY”*
**Quality-Overall**3%
*“not very good”*
**Spray/Flow**2%
*“Dripped and leaked while spraying”*
**Instructions/User Manual/Troubleshooting**2%
*“Totally did not follow delivery instructions”*
### **Top return reasons **
**Leak-Proof**23%
**Functionality-Overall**19%
**Advertised Vs Actual Product**13%
**Value For Money**9%
**Stain Resistance**6%
**Wet Cleaning**4%
**Spray/Flow**3%
**Size-Overall**2%
**Defective Material/Parts**2%
**Ease Of Cleaning**2%
## **Common questions**
- **Is engine cleaner profitable to sell on Amazon United States?**
- The niche generates $1.1M/yr across 18 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +13.8%. Flapen's verdict: Launch it (58/100).
- **How competitive is the engine cleaner niche?**
- 9 brands and 103 sellers compete. The top 5 products take 64% of clicks and top 5 brands hold 82% of demand.
- **What do buyers complain about in engine cleaner?**
- Top complaints mined from reviews: Functionality-Overall, Ease Of Cleaning, Stain Resistance. The return rate is 0.4%.
- **When does demand for engine cleaner peak?**
- Demand is steady year-round — the busiest month runs 1.8× the quietest.
- **What does it cost to enter the engine cleaner niche?**
- Listings span $5.01–$66.88; the average listing price is $22.31 (sweet spot $15–$100). The average incumbent carries 2,560 reviews — the moat a new listing must climb.
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