---
title: "Fass Fuel System — $122K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/automotive/fass-fuel-system"
last_updated: "2026-08-08T22:19:58.932Z"
locale: en
meta:
description: "Niche score 36/100 · $122K/yr market · 77K searches/yr · $512.35 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 36/100 · $122K/yr market · 77K searches/yr · $512.35 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Fass Fuel System — $122K/yr Amazon US Niche (2026) - Flapen"
---
# **fass fuel system**
**Skip it**
Pricing outside the sweet spot ($512.35 avg) — this niche doesn't clear our bar today.
Market size 28Growth 24Conversion 4Competition 46Returns 90Price range 8Avg price 0Brand share 8Review moat 99Quality gap 60
**Review moat**
**Incredible****16.52**
avg incumbent reviews — the moat a new listing must climb
**Returns**
**Great****1.2%**
return rate — above 5% kills the launch gate
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Competition**
**Okay****57%**
top-5 click share — leaders hold, buyers still browse
**Market size**
**Okay****$122K**
$122K/yr · 77K searches
**Growth**
**Bad****-1.2%**
90-day search growth — must beat 0% to launch
**Brand share**
**Bad****97%**
top-5 brand share — brand-locked demand
**Price range**
**Bad****$42.32–$743.89**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Conversion**
**Bad****0.3%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Bad****$512.35**
avg listing price — sweet spot $15–$100
**Signals**[** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500") [** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")
According to Flapen's Amazon United States niche tracking, fass fuel system is a $122K/yr Amazon United States market (77K searches/yr). The top 5 brands hold 97% of demand. Verdict: Skip it — 36/100.
Data updated Jul 10, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **fass fuel system market data**
- **Units sold / yr**
- **250–500**
- avg 0–100/product
- **Revenue / yr**
- **$128K–$256K**
- units × avg price
- **Conversion rate**
- **0.3%**
- **Avg BSR**
- **#4,658**
- **Page quality**
- **0%**
- **Prime**
- **32%**
- **Sponsored**
- **80%**
- **Out of stock**
- **17.1%**
- **Avg brand age**
- **46 months**
- **Avg seller age**
- **166 days**
## **Competition & brand share**
The top 5 products take 57% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**7 **▼falling
**Sellers**
**34**
**Top-5 brand share**
**97%**
Top 20: 100%
**Top-5 click share**
**57%**
Top 20: 95%
**Open market**
**1%**
- FASS78% - Flynsu10% - Orceed4% - GELUOXI3% - KAX3% - Hututimo2% - Open — no brand owns it (1 brand, 1%)
## **Demand**
Weekly Amazon search volume, last 30 weeks — -1.2% search growth over the last 90 days.
2K1KDec '25Jan '26Feb '26Mar '26May '26Jun '26
[**Open Trend **](https://flapen.com/research/us/automotive/fass-fuel-system/trend)
## **Top fass fuel system search terms**
- **fass fuel system**47K/yr+5.3%0.3% conv. - **fass lift pump**10K/yr+9.1%0.4% conv. - **fass fuel pump**9K/yr-36.2%0.6% conv. - **fast fuel system**4K/yr-6.3%0.3% conv. - **fass fuel system 5.9 cummins**3K/yr+6.6%0.2% conv. - **fass lift pump 6.6 duramax**3K/yr-37.5%0.2% conv. [**All search terms **](https://flapen.com/research/us/automotive/fass-fuel-system/search-terms)
## **Top fass fuel system 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%$6K10%$12K15%$18K20%$24K110100 Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**FASS TSC10100G Titanium Signature Series 100GPH Diesel Fuel System fits GM 6.6L Duramax 2001-2010**FASS**$674.30**4.6★45 rev](https://www.amazon.com/dp/B0B75QDX9P) [2**FASS TSC10165G Titanium Signature Series Diesel Fuel Lift Pump 165GPH fits GM Duramax 6.6L 2001-2010**FASS**$706.22**4.4★30 rev](https://www.amazon.com/dp/B0B75M7JBL) [3**FASS TSD07165G Titanium Signature Series 165GPH Diesel Fuel System fits RAM 5.9L and 6.7L Cummins 2005-2018 & 2021**FASS**$709.15**4.3★19 rev](https://www.amazon.com/dp/B0B75K87YK) [4**Flynsu 165 GPH Fuel Lift Pump System Replacement for 1998.5-2004 Dodge Ram 2500 3500 5.9L Cummins Diesel TD08150G TSD08165G TS D08 165G**Flynsu**$400.61**4.3★15 rev](https://www.amazon.com/dp/B0BL98DTL1) [5**FASS TSD08100G Titanium Signature Series Diesel Fuel Lift Pump 100GPH fits Dodge Cummins 5.9L 1998.5-2004**FASS**$652.98**4.6★12 rev](https://www.amazon.com/dp/B0B75N77BL)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Hututimo 165GPH Diesel Fuel Lift Pump System Compatible with Chevrolet Silverado GMC Sierra Diesel 6.6L 2001-2010 Replace TSC10165G 165GPH TC10150G TC10165G FASTC10150G**Hututimo**$371.96**4 rev2y ago](https://www.amazon.com/dp/B0D83FTXVY) [**KAX Diesel Fuel Lift Pump System Fits for Ram 2500 2011-2018 6.7T Ram 3500 2011-2018 Dodge Ram 2500 2007-2010 6.7T 2005-2009 5.9T TS D07 165G**KAX**$403.90**98 rev2y ago](https://www.amazon.com/dp/B0CZ8S152W) [**GELUOXI Fuel Lift Pump System TSC10100G Replacement for Chevy GMC Duramax 6.6L 100GPH Diesel 2001-2010**GELUOXI**$343.49**1 rev2y ago](https://www.amazon.com/dp/B0CQ7XH6Z4) [**165GPH Diesel Fuel Lift Pump System Compatible with Chevy GMC Duramax 2001-2010 6.6L Replaces OE Number TS C10 165G TSC10165G**Orceed**$427.26**2 rev2y ago](https://www.amazon.com/dp/B0CGCJ19SH) [**165GPH Diesel Fuel Lift Pump System Compatible with 2015 2016 GMC Chevy Duramax 6.6L Replaces OE Number TS C12 165G TSC12165G**Orceed**$408.28**5 rev2y ago](https://www.amazon.com/dp/B0CGCDSTLN)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Flynsu 165 GPH Fuel Lift Pump Replacement for 2005-2018 Dodge Ram 2500 3500 5.9/6.7 Cummins Diesel TSD07165G**Flynsu**$401.97**3.4★**▲ 117%**](https://www.amazon.com/dp/B0BL3JDXS8) [**GELUOXI Fuel Lift Pump System TSC10100G Replacement for Chevy GMC Duramax 6.6L 100GPH Diesel 2001-2010**GELUOXI**$343.49**5.0★**▲ 58%**](https://www.amazon.com/dp/B0CQ7XH6Z4) [**FASS TSD07100G Titanium Signature Series Diesel Fuel Lift Pump 100GPH fits RAM Cummins 5.9L and 6.7L 2005-2018 & 2021**FASS**$685.63**4.5★**▲ 51%**](https://www.amazon.com/dp/B0B75KWTZ8) [**FASS TSF17180F140G Titanium Signature Series 140GPH Diesel Fuel Lift Pump fits Ford 6.7L diesel 2011-2016**FASS**$739.52**4.6★**▲ 48%**](https://www.amazon.com/dp/B0B75X8W45) [**Flynsu 165 GPH Fuel Lift Pump System Replacement for 1998.5-2004 Dodge Ram 2500 3500 5.9L Cummins Diesel TD08150G TSD08165G TS D08 165G**Flynsu**$400.61**4.3★**▲ 41%**](https://www.amazon.com/dp/B0BL98DTL1)
**~~View all trending →~~**
## **What buyers say about fass fuel system**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**23%
*“Great quality”*
**Fuel Efficiency**15%
*“This corrected the fuel issues on my truck”*
**Advertised Vs Actual Product**10%
*“Way better than expected”*
**Efficiency**10%
*“Works great”*
**Assembly/Installation**8%
*“Easy to install”*
**Value For Money**5%
*“Good value”*
**Ease Of Use**5%
*“Easy to use kit”*
**Noise Level**5%
*“Quiet operation”*
**Durability**5%
*“it still works well”*
### **What buyers complain about **
**Instructions/User Manual/Troubleshooting**46%
*“Directions are horrible”*
**Pressure**13%
*“pressure issues”*
### **Top return reasons **
**Assembly/Installation**17%
**Defective Material/Parts**17%
**Size-Overall**17%
**Compatibility-Overall**15%
**Advertised Vs Actual Product**12%
**Functionality-Overall**10%
**Mounting**3%
**Durability**3%
**Certifications**3%
**Socket/Port/Plug**2%
## **Common questions**
- **Is fass fuel system profitable to sell on Amazon United States?**
- The niche generates $122K/yr across 25 tracked products. 90-day search growth is -1.2%. Flapen's verdict: Skip it (36/100).
- **How competitive is the fass fuel system niche?**
- 7 brands and 34 sellers compete. The top 5 products take 57% of clicks and top 5 brands hold 97% of demand.
- **What do buyers complain about in fass fuel system?**
- Top complaints mined from reviews: Instructions/User Manual/Troubleshooting, Pressure. The return rate is 1.2%.
- **What does it cost to enter the fass fuel system niche?**
- Listings span $42.32–$743.89; the average listing price is $512.35 (sweet spot $15–$100). The average incumbent carries 17 reviews — the moat a new listing must climb.
## **Related niches in Automotive**
- 72 [**brake bleeder kit**](https://flapen.com/research/us/automotive/brake-bleeder-kit)$2.2M/yr+8.2%**Launch it**- 72 [**gas can pump**](https://flapen.com/research/us/automotive/gas-can-pump)$1.7M/yr+20.1%**Launch it**- 72 [**dewalt hedge trimmer**](https://flapen.com/research/us/automotive/dewalt-hedge-trimmer)$1.6M/yr+158.2%**Launch it**- 72 [**iron eraser**](https://flapen.com/research/us/automotive/iron-eraser)$107K/yr>1,000%**Worth a look**- 72 [**marine fuel line**](https://flapen.com/research/us/automotive/marine-fuel-line)$198K/yr+104.3%**Worth a look**- 72 [**garden hose filter**](https://flapen.com/research/us/automotive/garden-hose-filter)$729K/yr+110.7%**Worth a look**[**All Automotive niches **](https://flapen.com/research/us/automotive)