---
title: "Racor Fuel Water Separator — $104K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/automotive/racor-fuel-water-separator"
last_updated: "2026-08-07T20:10:52.360Z"
locale: en
meta:
description: "Niche score 55/100 · $104K/yr market · 33K searches/yr. Prices mostly outside the sweet spot ($16.42–$552.50) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 55/100 · $104K/yr market · 33K searches/yr. Prices mostly outside the sweet spot ($16.42–$552.50) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Racor Fuel Water Separator — $104K/yr Amazon US Niche (2026) - Flapen"
---
# **racor fuel water separator**
**Worth a look**
Shows a thin review moat (116 avg reviews), but prices mostly outside the sweet spot ($16.42–$552.50) keeps it on the watch list.
Market size 26Growth 61Conversion 47Competition 62Returns 81Price range 16Avg price 81Brand share 55Review moat 94Quality gap 52
**Review moat**
**Great****115.79**
avg incumbent reviews — the moat a new listing must climb
**Returns**
**Great****1.7%**
return rate — above 5% kills the launch gate
**Avg price**
**Great****$84.57**
avg listing price — sweet spot $15–$100
**Competition**
**Good****48%**
top-5 click share — leaders hold, buyers still browse
**Growth**
**Good****+37.0%**
90-day search growth — must beat 0% to launch
**Brand share**
**Good****72%**
top-5 brand share — brands hold most of the demand
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Conversion**
**Okay****3.8%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Okay****$104K**
$104K/yr · 33K searches
**Price range**
**Bad****$16.42–$552.50**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**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, racor fuel water separator is a $104K/yr Amazon United States market (33K searches/yr). The top 5 brands hold 72% of demand. Demand peaks in May. Verdict: Worth a look — 55/100.
Data updated Jul 9, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **racor fuel water separator market data**
- **Units sold / yr**
- **1K–1K**
- avg 0–100/product
- **Revenue / yr**
- **$85K–$106K**
- units × avg price
- **Conversion rate**
- **3.8%**
- **Avg BSR**
- **#1,464**
- **Page quality**
- **0%**
- **Prime**
- **86%**
- **Sponsored**
- **52%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **55 months**
- **Avg seller age**
- **164 days**
## **Competition & brand share**
The top 5 products take 48% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**16 **▼falling
**Sellers**
**49**
**Top-5 brand share**
**72%**
Top 20: 100%
**Top-5 click share**
**48%**
Top 20: 91%
**Open market**
**24%**
- Racor41% - CARMOCAR12% - Aurorasters9% - Racor Fuel Filter Element6% - SURGLA5% - DZFST.FI4%
## **Demand & seasonality**
Weekly Amazon search volume, last 103 weeks — +37.0% search growth over the last 90 days.
800600Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: May · busiest ÷ quietest = 1.8×
[**Open Trend **](https://flapen.com/research/us/automotive/racor-fuel-water-separator/trend)
## **Top racor fuel water separator search terms**
- **racor fuel water separator**19K/yr+41.0%2.1% conv. - **racor fuel filter**10K/yr+38.2%2.9% conv. - **racor**4K/yr+20.3%1.0% conv. [**All search terms **](https://flapen.com/research/us/automotive/racor-fuel-water-separator/search-terms)
## **Top racor fuel water separator 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%$10K20%$21K30%$31K40%$42K1101001K 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**Racor Spin-On Fuel Filter/Water Separator Complete Kit 320R-RAC-01**Racor**$117.20**4.4★152 rev](https://www.amazon.com/dp/B0000AXT9M) [2**R12T Fuel Water Separator Fuel Filter/Water Separator Marine Complete Kit 10 Micron Filter Replaces Racor S3240 120AT R12T NPT ZG1/4-19 Fit 3/8 Inch NPT Outboard Motors for Gas & Diesel Engines**Aurorasters**$18.40**4.4★85 rev](https://www.amazon.com/dp/B0CL8TVYQM) [3**CARMOCAR Fuel Filter Water Separator replacement for Marine Outboard Motor Mercury with 3/8 Barb x 1/4 NPT brass Fittings Replaces# S3213 S3214 35-60494-1 S3213 18-7932-1 18-17928 35-809097**CARMOCAR**$30.14**4.4★580 rev](https://www.amazon.com/dp/B075TZQ8LD) [4**S3213 Fuel Water Separator Filter with Clear Bowl: 10 Micron Marine Fuel Filter Compatible with Yamaha/Mercury/Suzuki/Racor. Replaces 35-60494-1 18-7932-1. Installation Kit Screws Fittings & Clamps**SURGLA**$26.05**4.3★25 rev](https://www.amazon.com/dp/B0GKG8MBG2) [5**DZFST.FI S3213 Fuel Water Separator Filter Compatible with Marine Outboard Motor Mercury Yamaha Racor Sierra Engine Boat 10 Micron Replaces# 35-60494-1 S3213 18-7932-1 18-17928 35-809097**DZFST.FI**$19.20**4.5★108 rev](https://www.amazon.com/dp/B0C497KJPF)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**S3213 Fuel Water Separator Filter with Clear Bowl: 10 Micron Marine Fuel Filter Compatible with Yamaha/Mercury/Suzuki/Racor. Replaces 35-60494-1 18-7932-1. Installation Kit Screws Fittings & Clamps**SURGLA**$26.05**25 rev5mo ago](https://www.amazon.com/dp/B0GKG8MBG2) [**S3213 Fuel Water Separator Marine Kit Compatible with Yamaha and for Mercury Marine Outboard Motor with 3/8 Barb x 1/4 NPT Brass Fittings Replaces B32013 35-60494-1 18-7932-1 18-17928 35-809097**TRSCJXN**$24.32**51 rev8mo ago](https://www.amazon.com/dp/B0FQTNXPWP) [**S3213 Fuel Water Separator Marine Fuel Filter Water Separator with 3/8 Barb and 1/4 NPT Fittings Compatible with Yamaha Mercury Racor Sierra Suzuki Outboard - 18-7922 35-60494-1 B32013 18-7932-1**Arbriaty**$24.62**52 rev1y ago](https://www.amazon.com/dp/B0DSKD2731) [**Diesel Fuel Filter Oil Water Separator With Bolt Turbine Marine Boat Superior 60 GPH 30 Micron Racor Fuel Water Separator Replace# 500FG 500FH**Dtomi**$31.24**37 rev2y ago](https://www.amazon.com/dp/B0D141Q8M1) [**R12T Fuel Water Separator Fuel Filter/Water Separator Marine Complete Kit 10 Micron Filter Replaces Racor S3240 120AT R12T NPT ZG1/4-19 Fit 3/8 Inch NPT Outboard Motors for Gas & Diesel Engines**Aurorasters**$18.40**85 rev2y ago](https://www.amazon.com/dp/B0CL8TVYQM)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**S3213 Fuel Water Separator Filter with Clear Bowl: 10 Micron Marine Fuel Filter Compatible with Yamaha/Mercury/Suzuki/Racor. Replaces 35-60494-1 18-7932-1. Installation Kit Screws Fittings & Clamps**SURGLA**$26.05**4.3★**▲ 206%**](https://www.amazon.com/dp/B0GKG8MBG2) [**S3213 Fuel Water Separator Marine Kit Compatible with Yamaha and for Mercury Marine Outboard Motor with 3/8 Barb x 1/4 NPT Brass Fittings Replaces B32013 35-60494-1 18-7932-1 18-17928 35-809097**TRSCJXN**$24.32**4.6★**▲ 135%**](https://www.amazon.com/dp/B0FQTNXPWP) [**Racor Snapp Filter Assy W/Drain 10M**Racor**$60.06**4.2★**▲ 66%**](https://www.amazon.com/dp/B00LVB44PY) [**DZFST.FI S3213 Fuel Water Separator Filter Compatible with Marine Outboard Motor Mercury Yamaha Racor Sierra Engine Boat 10 Micron Replaces# 35-60494-1 S3213 18-7932-1 18-17928 35-809097**DZFST.FI**$19.20**4.5★**▲ 52%**](https://www.amazon.com/dp/B0C497KJPF) [**Racor 2020PM 2020 30 Micron Diesel Fuel Filter QTY 12**Racor**$190.43**4.3★**▲ 43%**](https://www.amazon.com/dp/B002ISAFKC)
**~~View all trending →~~**
## **What buyers say about racor fuel water separator**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**23%
*“The build quality feels solid and well-made, and installation was simple and straightforward”*
**Filtration**11%
*“Great affordable filters”*
**Advertised Vs Actual Product**10%
*“Works as advertised”*
**Value For Money**10%
*“GREAT PRICE”*
**Assembly/Installation**9%
*“It was easy to mount”*
**Size-Overall**6%
*“Good fit”*
**Efficiency**3%
*“Works great”*
**Leak-Proof**3%
*“I experienced no air leaks or fuel starvation issues afterward”*
**Design-Overall**3%
*“Good design”*
**Durability**2%
*“seems durable”*
### **What buyers complain about **
**Leak-Proof**23%
*“Leaks”*
**Filtration**13%
*“nor allow carb filter to fail”*
**Size-Overall**8%
*“MISSING FITTINGS”*
**Quality-Overall**7%
*“Check valve is junk”*
**Paint Quality**4%
*“One had chipped paint”*
**Rusts/Corrodes**3%
*“last one corroded so badly that it started leaking fuel”*
**Metal Quality**3%
*“Metal shavings”*
**Assembly/Installation**3%
*“havent installed it”*
**Mounting**3%
*“screwed on way too tight”*
**Functionality-Overall**1%
*“within 5 minutes the same issue”*
### **Top return reasons **
**Size-Overall**52%
**Filtration**8%
**Compatibility-Overall**8%
**Defective Material/Parts**5%
**Leak-Proof**5%
**Advertised Vs Actual Product**4%
**Functionality-Overall**3%
**Assembly/Installation**3%
**Quality-Overall**2%
**Value For Money**2%
## **Common questions**
- **Is racor fuel water separator profitable to sell on Amazon United States?**
- The niche generates $104K/yr across 29 tracked products. 2 of 3 products launched in the last 360 days are still selling. 90-day search growth is +37.0%. Flapen's verdict: Worth a look (55/100).
- **How competitive is the racor fuel water separator niche?**
- 16 brands and 49 sellers compete. The top 5 products take 48% of clicks and top 5 brands hold 72% of demand.
- **What do buyers complain about in racor fuel water separator?**
- Top complaints mined from reviews: Leak-Proof, Filtration, Size-Overall. The return rate is 1.7%.
- **When does demand for racor fuel water separator peak?**
- Demand peaks in May; the busiest month runs 1.8× the quietest.
- **What does it cost to enter the racor fuel water separator niche?**
- Listings span $16.42–$552.50; the average listing price is $84.57 (sweet spot $15–$100). The average incumbent carries 116 reviews — the moat a new listing must climb.
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