---
title: "rcj7y spark plug — Niche Verdict: Skip it (47/100) | Amazon United States - Flapen"
canonical_url: "https://flapen.com/amazon/research/us/automotive/rcj7y-spark-plug"
last_updated: "2026-07-14T04:56:23.621Z"
locale: en
meta:
  description: "brand-locked demand (top 5 brands take 100% of clicks) — rcj7y spark plug doesn't clear our bar today."
  "og:description": "brand-locked demand (top 5 brands take 100% of clicks) — rcj7y spark plug doesn't clear our bar today."
  "og:title": "rcj7y spark plug — Niche Verdict: Skip it (47/100) | Amazon United States - Flapen"
---

Back to Flapen home

# **rcj7y spark plug**

**Skip it**

Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.

Market size 45Growth 60Conversion 100Competition 6Returns 97Price range 56Avg price 47Brand share 0Review moat 63Quality gap 21

**Conversion**

**Incredible****21.3%**

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

**Returns**

**Incredible****0.7%**

return rate — above 6% kills the launch gate

**Review moat**

**Good****967.43**

avg incumbent reviews — the moat a new listing must climb

**Growth**

**Good****+35.8%**

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

**Price range**

**Good****$3.90–$28.89**

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

**Avg price**

**Okay****$11.68**

avg listing price — sweet spot $15–$100

**Market size**

**Okay****$242K**

$242K/yr · 97K searches

**Quality gap**

**Bad****4.7★**

avg incumbent rating — lower means beatable quality

**Competition**

**Bad****93%**

top-5 click share — a locked-up shelf

**Brand share**

**Bad****100%**

top-5 brand share — brand-locked demand

## **Competition**

The top 5 products capture 93% of clicks — a locked-up shelf that new listings rarely crack.

**Brands**

**3 **—flat

**Sellers**

**61**

**Top-5 brand share**

**100%**

**Open market**

**0%**

- NGK88% - Wetenex7% - Hipa5%

## **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%15%$36K30%$73K45%$109K60%$145K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 7 tracked products in this niche — three views at once, no toggling.

### **Top sellers**

by 90-day click share

[1![NGK (6703) BPMR7A Spark Plugs Individual Boxed - 2 Pack Copper](https://m.media-amazon.com/images/I/31whTEt8HRL.jpg)**NGK (6703) BPMR7A Spark Plugs Individual Boxed - 2 Pack Copper**NGK**$8.85**4.8★2,434 rev](https://www.amazon.com/dp/B07R1QX2ZN) [2![NGK (6703) BPMR7A SOLID Standard Spark Plug Pack of 4](https://m.media-amazon.com/images/I/41FxJ+sSnsL.jpg)**NGK (6703) BPMR7A SOLID Standard Spark Plug Pack of 4**NGK**$14.17**4.8★1,141 rev](https://www.amazon.com/dp/B07NX2YCFQ) [3![NGK Spark Plug BPMR7A](https://m.media-amazon.com/images/I/41JJu2VhIoL.jpg)**NGK Spark Plug BPMR7A**NGK**$6.93**4.7★477 rev](https://www.amazon.com/dp/B06X4254DS) [4![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**4.4★87 rev](https://www.amazon.com/dp/B0DSVHJVGY) [5![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)

**~~View all top sellers →~~**

### **Newest**

by launch date

[![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) [![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**142 rev3y ago](https://www.amazon.com/dp/B0BD49WK8G) [![NGK (6703) BPMR7A Spark Plugs Individual Boxed - 2 Pack Copper](https://m.media-amazon.com/images/I/31whTEt8HRL.jpg)**NGK (6703) BPMR7A Spark Plugs Individual Boxed - 2 Pack Copper**NGK**$8.85**2,434 rev7y ago](https://www.amazon.com/dp/B07R1QX2ZN) [![NGK (6703) BPMR7A SOLID Standard Spark Plug Pack of 4](https://m.media-amazon.com/images/I/41FxJ+sSnsL.jpg)**NGK (6703) BPMR7A SOLID Standard Spark Plug Pack of 4**NGK**$14.17**1,141 rev7y ago](https://www.amazon.com/dp/B07NX2YCFQ) [![NGK (6703) BPMR7A SOLID Standard Spark Plug Pack of 1](https://m.media-amazon.com/images/I/41FOPakxC4L.jpg)**NGK (6703) BPMR7A SOLID Standard Spark Plug Pack of 1**NGK**$3.90**2,364 rev18y ago](https://www.amazon.com/dp/B001RM8J76)

**~~View all new products →~~**

### **Trending**

90-day click momentum

[![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★**▲ 51%**](https://www.amazon.com/dp/B0BD49WK8G) [![NGK Spark Plug BPMR7A](https://m.media-amazon.com/images/I/41JJu2VhIoL.jpg)**NGK Spark Plug BPMR7A**NGK**$6.93**4.7★**▲ 39%**](https://www.amazon.com/dp/B06X4254DS) [![NGK (6703) BPMR7A SOLID Standard Spark Plug Pack of 4](https://m.media-amazon.com/images/I/41FxJ+sSnsL.jpg)**NGK (6703) BPMR7A SOLID Standard Spark Plug Pack of 4**NGK**$14.17**4.8★**— 7%**](https://www.amazon.com/dp/B07NX2YCFQ) [![NGK (6703) BPMR7A Spark Plugs Individual Boxed - 2 Pack Copper](https://m.media-amazon.com/images/I/31whTEt8HRL.jpg)**NGK (6703) BPMR7A Spark Plugs Individual Boxed - 2 Pack Copper**NGK**$8.85**4.8★**— 3%**](https://www.amazon.com/dp/B07R1QX2ZN) [![NGK (6703) BPMR7A SOLID Standard Spark Plug Pack of 1](https://m.media-amazon.com/images/I/41FOPakxC4L.jpg)**NGK (6703) BPMR7A SOLID Standard Spark Plug Pack of 1**NGK**$3.90**4.8★**▼ 14%**](https://www.amazon.com/dp/B001RM8J76)

**~~View all trending →~~**

## **Demand & seasonality**

Weekly Amazon search volume, last 101 weeks — +35.8% search growth over the last 90 days.

3K2KSpike '24Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay

Peak months: Apr, May · busiest ÷ quietest = 2.6×

## **Reviews**

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

### **What buyers love **

**Advertised Vs Actual Product**22%

*“Exactly what you expect”*

**Socket/Port/Plug**21%

*“Plugs are good”*

**Quality-Overall**21%

*“Good quality replacement as advertised”*

**Value For Money**9%

*“Good price”*

**Size-Overall**7%

*“Good fit and price”*

**Blower**3%

*“Work perfect in my Ryobi 2 Cycles Leaf Blower”*

**Locally Manufactured**3%

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

**Shape/Style**3%

*“they look right”*

**Motor Power**3%

*“Best for 2 cycle engines”*

**Assembly/Installation**2%

*“Installation was straightforward – perfect fit with no issues”*

### **What buyers complain about **

**Durability**33%

*“Dead”*

**Socket/Port/Plug**33%

*“2 out of 4 sparkplugs bad right out of box”*

**Compatibility-Overall**17%

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

### **Top return reasons **

**Size-Overall**62%

**Compatibility-Overall**10%

**Advertised Vs Actual Product**9%

**Functionality-Overall**5%

**Socket/Port/Plug**5%

**Defective Material/Parts**4%

**Value For Money**4%

**Product Condition**1%

**Measurement/Reading Accuracy**1%

**Certifications**1%