---
title: "Rcj7y Spark Plug — $242K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/automotive/rcj7y-spark-plug"
last_updated: "2026-08-07T00:41:03.930Z"
locale: en
meta:
description: "Niche score 47/100 · $242K/yr market · 97K searches/yr · $11.68 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 47/100 · $242K/yr market · 97K searches/yr · $11.68 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Rcj7y Spark Plug — $242K/yr Amazon US Niche (2026) - Flapen"
---
# **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 5% 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
According to Flapen's Amazon United States niche tracking, rcj7y spark plug is a $242K/yr Amazon United States market (97K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Apr–May. Verdict: Skip it — 47/100.
Data updated Jul 11, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **rcj7y spark plug market data**
- **Units sold / yr**
- **20K–25K**
- avg 1,500–2,000/product
- **Revenue / yr**
- **$234K–$292K**
- units × avg price
- **Conversion rate**
- **21.3%**
- **Avg BSR**
- **#182**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **71%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **45 months**
- **Avg seller age**
- **160 days**
## **Competition & brand share**
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%**
Top 20: 100%
**Top-5 click share**
**93%**
Top 20: 100%
**Open market**
**0%**
- NGK88% - Wetenex7% - Hipa5%
## **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×
[**Open Trend **](https://flapen.com/research/us/automotive/rcj7y-spark-plug/trend)
## **Top rcj7y spark plug search terms**
- **ngk bpmr7a**34K/yr+42.2%20.7% conv. - **bpmr7a ngk spark plug**17K/yr+28.5%24.8% conv. - **ngk bpmr7a spark plug**13K/yr+30.4%22.3% conv. - **bpmr7a**12K/yr+27.9%17.6% conv. - **stihl spark plugs**5K/yr+36.9%1.6% conv. - **bpmr7a spark plug**6K/yr+44.4%16.6% conv. - **chainsaw spark plug**4K/yr+10.2%1.1% conv. - **ngk bpmr7a spark plug stihl**3K/yr+42.3%28.2% conv. - **stihl chainsaw spark plug**3K/yr+81.4%3.6% conv. [**All search terms **](https://flapen.com/research/us/automotive/rcj7y-spark-plug/search-terms)
## **Top rcj7y spark plug 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%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**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**NGK**$14.17**4.8★1,141 rev](https://www.amazon.com/dp/B07NX2YCFQ) [3**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**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)**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**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)**Hipa**$9.08**142 rev3y ago](https://www.amazon.com/dp/B0BD49WK8G) [**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**NGK**$14.17**1,141 rev7y ago](https://www.amazon.com/dp/B07NX2YCFQ) [**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)**Hipa**$9.08**4.6★**▲ 51%**](https://www.amazon.com/dp/B0BD49WK8G) [**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**NGK**$14.17**4.8★**— 7%**](https://www.amazon.com/dp/B07NX2YCFQ) [**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**NGK**$3.90**4.8★**▼ 14%**](https://www.amazon.com/dp/B001RM8J76)
**~~View all trending →~~**
## **What buyers say about rcj7y spark plug**
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%
## **Common questions**
- **Is rcj7y spark plug profitable to sell on Amazon United States?**
- The niche generates $242K/yr across 7 tracked products. 90-day search growth is +35.8%. Flapen's verdict: Skip it (47/100).
- **How competitive is the rcj7y spark plug niche?**
- 3 brands and 61 sellers compete. The top 5 products take 93% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in rcj7y spark plug?**
- Top complaints mined from reviews: Durability, Socket/Port/Plug, Compatibility-Overall. The return rate is 0.7%.
- **When does demand for rcj7y spark plug peak?**
- Demand peaks in Apr–May; the busiest month runs 2.6× the quietest.
- **What does it cost to enter the rcj7y spark plug niche?**
- Listings span $3.90–$28.89; the average listing price is $11.68 (sweet spot $15–$100). The average incumbent carries 967 reviews — the moat a new listing must climb.
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