---
title: "rcj6y spark plug — Niche Verdict: Worth a look (52/100) | Amazon United States - Flapen"
canonical_url: "https://flapen.com/amazon/research/us/automotive/rcj6y-spark-plug"
last_updated: "2026-07-14T01:52:16.803Z"
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meta:
  description: "rcj6y spark plug shows searches that convert (16.7% search→purchase), but a small market ($37K/yr) keeps it on the watch list."
  "og:description": "rcj6y spark plug shows searches that convert (16.7% search→purchase), but a small market ($37K/yr) keeps it on the watch list."
  "og:title": "rcj6y spark plug — Niche Verdict: Worth a look (52/100) | Amazon United States - Flapen"
---

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# **rcj6y spark plug**

**Worth a look**

Shows searches that convert (16.7% search→purchase), but a small market ($37K/yr) keeps it on the watch list.

Market size 9Growth 95Conversion 98Competition 32Returns 93Price range 12Avg price 23Brand share 43Review moat 72Quality gap 24

**Conversion**

**Incredible****16.7%**

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

**Growth**

**Incredible****+112.6%**

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

**Returns**

**Great****1.1%**

return rate — above 6% kills the launch gate

**Review moat**

**Good****611.25**

avg incumbent reviews — the moat a new listing must climb

**Brand share**

**Okay****79%**

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

**Competition**

**Okay****66%**

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

**Quality gap**

**Bad****4.6★**

avg incumbent rating — lower means beatable quality

**Avg price**

**Bad****$8.43**

avg listing price — sweet spot $15–$100

**Price range**

**Bad****$3.92–$16.44**

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

**Market size**

**Bad****$37K**

$37K/yr · 26K searches

## **Competition**

The top 5 products take 66% of clicks — established leaders, but buyers still shop beyond them.

**Brands**

**12 **▲rising

**Sellers**

**62**

**Top-5 brand share**

**79%**

**Open market**

**17%**

- Champion45% - Hipa12% - Adefol9% - LEFITPA9% - Yistiun4% - GULUANT4% - Open — no brand owns it (6 brands, 17%)

## **Product shelf**

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

0%10%$4K20%$7K30%$11K40%$15K1101001K10K 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![Champion Copper Plus Small Engine 852 (RCJ6Y) Pack of 4 (UPC 037551151714)](https://m.media-amazon.com/images/I/31H8C74DGqL.jpg)**Champion Copper Plus Small Engine 852 (RCJ6Y) Pack of 4 (UPC 037551151714)**Champion**$15.03**4.7★1,021 rev](https://www.amazon.com/dp/B000VXEP20) [2![Champion Copper Plus Small Engine 852 (RCJ6Y) Pack of 1 (UPC 037551001040)](https://m.media-amazon.com/images/I/31H8C74DGqL.jpg)**Champion Copper Plus Small Engine 852 (RCJ6Y) Pack of 1 (UPC 037551001040)**Champion**$4.94**4.7★1,021 rev](https://www.amazon.com/dp/B001HL3S82) [3![Hipa BPMR7A Spark Plug for NGK 6703 Champion RCJ6Y RCJ7Y Copper (4 Pack)](https://m.media-amazon.com/images/I/410zzUEYMeL.jpg)**Hipa BPMR7A Spark Plug for NGK 6703 Champion RCJ6Y RCJ7Y Copper (4 Pack)**Hipa**$9.08**4.6★142 rev](https://www.amazon.com/dp/B0BD49WK8G) [4![Spark Plug Replacement for NGK BPMR7A L7T and for Champion CJ8 RCJ6Y RCJ7Y & More Types Sparkplug Adefol Spark Plugs Fit for Stihl & Husqvarna Chainsaw Lawnmower Engines](https://m.media-amazon.com/images/I/41OVWp-B6nL.jpg)**Spark Plug Replacement for NGK BPMR7A L7T and for Champion CJ8 RCJ6Y RCJ7Y & More Types Sparkplug Adefol Spark Plugs Fit for Stihl & Husqvarna Chainsaw Lawnmower Engines**Adefol**$5.01**4.6★2,103 rev](https://www.amazon.com/dp/B087WHQSSF) [5![LEFITPA 2 Pack Replacement RCJ6Y Spark Plug for Champion Lawn Mower Models](https://m.media-amazon.com/images/I/41begiKAOWL.jpg)**LEFITPA 2 Pack Replacement RCJ6Y Spark Plug for Champion Lawn Mower Models**LEFITPA**$8.61**4.4★58 rev](https://www.amazon.com/dp/B0C6MCHZYP)

**~~View all top sellers →~~**

### **Newest**

by launch date

[![Yistiun BPMR7A Spark Plug for NGK BPMR7A BPM7A 6703;For Champion RCJ6Y RCJ7Y CJ7Y For Torch LR7TC For Carlton: SPCA6 SPCAR7 For Champion 859 For Dolmar 965603021 For Husqvarna 503235011 503235111](https://m.media-amazon.com/images/I/41CkrVEYQ8L.jpg)**Yistiun BPMR7A Spark Plug for NGK BPMR7A BPM7A 6703;For Champion RCJ6Y RCJ7Y CJ7Y For Torch LR7TC For Carlton: SPCA6 SPCAR7 For Champion 859 For Dolmar 965603021 For Husqvarna 503235011 503235111**Yistiun**$3.92**4 rev5mo ago](https://www.amazon.com/dp/B0GKYTP49J) [![BPMR7A Spark Plug for NGK BPMR7A BPM7A Champion RCJ6Y RCJ7Y Torch LR7TC Sthil MS170 MS180 026 MS250 MS240 MS260 MS361 MS290 Chainsaw 4 PACK](https://m.media-amazon.com/images/I/4117n-5atLL.jpg)**BPMR7A Spark Plug for NGK BPMR7A BPM7A Champion RCJ6Y RCJ7Y Torch LR7TC Sthil MS170 MS180 026 MS250 MS240 MS260 MS361 MS290 Chainsaw 4 PACK**Wetenex**$9.93**87 rev1y ago](https://www.amazon.com/dp/B0DSVHJVGY) [![GULUANT Replacement RCJ6Y Spark Plug for Champion Lawn Mower Models](https://m.media-amazon.com/images/I/412tT5QGLEL.jpg)**GULUANT Replacement RCJ6Y Spark Plug for Champion Lawn Mower Models**GULUANT**$5.99**25 rev2y ago](https://www.amazon.com/dp/B0CVX1BKCQ) [![LEFITPA 2 Pack Replacement RCJ6Y Spark Plug for Champion Lawn Mower Models](https://m.media-amazon.com/images/I/41begiKAOWL.jpg)**LEFITPA 2 Pack Replacement RCJ6Y Spark Plug for Champion Lawn Mower Models**LEFITPA**$8.61**58 rev3y ago](https://www.amazon.com/dp/B0C6MCHZYP) [![Spark Plug Replacement for NGK BPMR7A L7T and for Champion CJ8 RCJ6Y RCJ7Y & More Types Sparkplug Adefol Spark Plugs Fit for Stihl & Husqvarna Chainsaw Lawnmower Engines](https://m.media-amazon.com/images/I/41OVWp-B6nL.jpg)**Spark Plug Replacement for NGK BPMR7A L7T and for Champion CJ8 RCJ6Y RCJ7Y & More Types Sparkplug Adefol Spark Plugs Fit for Stihl & Husqvarna Chainsaw Lawnmower Engines**Adefol**$5.01**2,103 rev3y ago](https://www.amazon.com/dp/B087WHQSSF)

**~~View all new products →~~**

### **Trending**

90-day click momentum

[![Yistiun BPMR7A Spark Plug for NGK BPMR7A BPM7A 6703;For Champion RCJ6Y RCJ7Y CJ7Y For Torch LR7TC For Carlton: SPCA6 SPCAR7 For Champion 859 For Dolmar 965603021 For Husqvarna 503235011 503235111](https://m.media-amazon.com/images/I/41CkrVEYQ8L.jpg)**Yistiun BPMR7A Spark Plug for NGK BPMR7A BPM7A 6703;For Champion RCJ6Y RCJ7Y CJ7Y For Torch LR7TC For Carlton: SPCA6 SPCAR7 For Champion 859 For Dolmar 965603021 For Husqvarna 503235011 503235111**Yistiun**$3.92**5.0★**▲ 161%**](https://www.amazon.com/dp/B0GKYTP49J) [![Hipa BPMR7A Spark Plug for NGK 6703 Champion RCJ6Y RCJ7Y Copper (4 Pack)](https://m.media-amazon.com/images/I/410zzUEYMeL.jpg)**Hipa BPMR7A Spark Plug for NGK 6703 Champion RCJ6Y RCJ7Y Copper (4 Pack)**Hipa**$9.08**4.6★**▲ 118%**](https://www.amazon.com/dp/B0BD49WK8G) [![GULUANT Replacement RCJ6Y Spark Plug for Champion Lawn Mower Models](https://m.media-amazon.com/images/I/412tT5QGLEL.jpg)**GULUANT Replacement RCJ6Y Spark Plug for Champion Lawn Mower Models**GULUANT**$5.99**4.2★**▲ 65%**](https://www.amazon.com/dp/B0CVX1BKCQ) [![Champion (2 Pack) Copper Plus Small Engine Spark Plug - CJ6-2PK](https://m.media-amazon.com/images/I/41OA0tCogcL.jpg)**Champion (2 Pack) Copper Plus Small Engine Spark Plug - CJ6-2PK**Champion**$8.94**4.7★**▲ 62%**](https://www.amazon.com/dp/B00GG1D33I) [![Champion Copper Plus Small Engine 852 (RCJ6Y) Pack of 1 (UPC 037551001040)](https://m.media-amazon.com/images/I/31H8C74DGqL.jpg)**Champion Copper Plus Small Engine 852 (RCJ6Y) Pack of 1 (UPC 037551001040)**Champion**$4.94**4.7★**▲ 54%**](https://www.amazon.com/dp/B001HL3S82)

**~~View all trending →~~**

## **Demand & seasonality**

Weekly Amazon search volume, last 56 weeks — +112.6% search growth over the last 90 days.

800600Spike '25Spike '26 seasonJunJulAugSepOctNovDecJanFebMarAprMayJun

Peak months: Apr, May · busiest ÷ quietest = 3.5×

## **Reviews**

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

### **What buyers love **

**Advertised Vs Actual Product**24%

*“Exactly what you expect”*

**Socket/Port/Plug**18%

*“Good working spark plug”*

**Quality-Overall**15%

*“Good performance right out of the box”*

**Size-Overall**10%

*“Perfect fit”*

**Value For Money**10%

*“Affordability”*

**Assembly/Installation**3%

*“It worked great easy to install”*

**Efficiency**3%

*“Works great”*

**Motor Power**3%

*“Best for 2 cycle engines”*

**Brightness/Shine/Glow**3%

*“Good spark”*

**Locally Manufactured**2%

*“Nicely made, Brazil, saw started right up”*

### **What buyers complain about **

**Socket/Port/Plug**33%

*“Bad plug”*

**Heating**17%

*“Using to high temperature range will cause engine overheating and plug fouling”*

**Size-Overall**8%

*“Sized smaller than advertised”*

**Compatibility-Overall**8%

*“Air filters are not compatible with a Stihl MS250 as stated in the description”*

**Quality-Overall**6%

*“cheaper and same quality”*

### **Top return reasons **

**Size-Overall**59%

**Compatibility-Overall**8%

**Advertised Vs Actual Product**8%

**Defective Material/Parts**5%

**Functionality-Overall**5%

**Socket/Port/Plug**4%

**Value For Money**4%

**Product Condition**1%

**Motor Issues**1%

**Measurement/Reading Accuracy**1%