---
title: "13/16 Spark Plug Socket — $55K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/automotive/13-16-spark-plug-socket"
last_updated: "2026-08-09T05:16:59.136Z"
locale: en
meta:
description: "Niche score 47/100 · $55K/yr market · 34K searches/yr · $9.82 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 47/100 · $55K/yr market · 34K searches/yr · $9.82 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "13/16 Spark Plug Socket — $55K/yr Amazon US Niche (2026) - Flapen"
---
# **13/16 spark plug socket**
**Skip it**
A small market ($55K/yr) — this niche doesn't clear our bar today.
Market size 14Growth 52Conversion 98Competition 42Returns 50Price range 27Avg price 32Brand share 71Review moat 73Quality gap 24
**Conversion**
**Incredible****16.4%**
search→purchase rate — share of searches ending in a sale
**Review moat**
**Good****582.06**
avg incumbent reviews — the moat a new listing must climb
**Brand share**
**Good****62%**
top-5 brand share — brands hold most of the demand
**Growth**
**Good****+22.6%**
90-day search growth — must beat 0% to launch
**Returns**
**Good****3.0%**
return rate — above 5% kills the launch gate
**Competition**
**Okay****60%**
top-5 click share — leaders hold, buyers still browse
**Avg price**
**Okay****$9.82**
avg listing price — sweet spot $15–$100
**Price range**
**Okay****$5.98–$18.30**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Quality gap**
**Bad****4.6★**
avg incumbent rating — lower means beatable quality
**Market size**
**Bad****$55K**
$55K/yr · 34K searches
According to Flapen's Amazon United States niche tracking, 13/16 spark plug socket is a $55K/yr Amazon United States market (34K searches/yr). The top 5 brands hold 62% of demand. Demand peaks in Apr–May. Verdict: Skip it — 47/100.
Data updated Jul 12, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **13/16 spark plug socket market data**
- **Units sold / yr**
- **5K–6K**
- avg 250–500/product
- **Revenue / yr**
- **$49K–$59K**
- units × avg price
- **Conversion rate**
- **16.4%**
- **Avg BSR**
- **#65**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **65%**
- **Out of stock**
- **5.0%**
- **Avg brand age**
- **44 months**
- **Avg seller age**
- **175 days**
## **Competition & brand share**
The top 5 products take 60% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**15 **▲rising
**Sellers**
**24**
**Top-5 brand share**
**62%**
Top 20: 100%
**Top-5 click share**
**60%**
Top 20: 100%
**Open market**
**30%**
- A ABIGAIL23% - TEKTON11% - starfa lab10% - GZZTORES9% - GEARWRENCH9% - LAINLOY8%
## **Demand & seasonality**
Weekly Amazon search volume, last 61 weeks — +22.6% search growth over the last 90 days.
1K800Spike '25Black Friday '25Holiday '25Spike '26 seasonMayJunJulAugSepOctNovDecJanFebMarAprMayJun
Peak months: Apr, May · busiest ÷ quietest = 2.3×
[**Open Trend **](https://flapen.com/research/us/automotive/13-16-spark-plug-socket/trend)
## **Top 13/16 spark plug socket 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%$6K20%$11K30%$17K40%$22K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 17 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**13/16-inch Magnetic Spark Plug Socket 3/8-inch Drive 6-Point Powerful Magnet Retains Spark Plugs Chrome Vanadium Steel**A ABIGAIL**$9.95**4.6★1,047 rev](https://www.amazon.com/dp/B0BYZDKN9B) [2**TEKTON 3/8 Inch Drive x 13/16 Inch Deep 6-Point Socket | SHD13021**TEKTON**$6.44**4.8★2,074 rev](https://www.amazon.com/dp/B07R7553BS) [3**GZZTORES Spark Plug Socket Wrench T-Handle 5/8 Inch (16mm) and 13/16 Inch(21mm) Spark Plug Socket Wrench Remover Installer Tool for Motorcycles Lawn mowers and Small Motor Vehicles etc**GZZTORES**$7.33**4.6★405 rev](https://www.amazon.com/dp/B0D78S2L7Q) [4**GEARWRENCH 3/8 Drive 2-1/2 Spark Plug Socket 13/16 6 Point - 80403**GEARWRENCH**$6.17**4.7★52 rev](https://www.amazon.com/dp/B009TCBMYI) [5**1PCS Magnetic Spark Plug Socket Powerful Magnet Retains Spark Plugs Chrome Vanadium Steel Spark Plug Socket (13/16-inch)**LAINLOY**$7.61**4.7★197 rev](https://www.amazon.com/dp/B0D561KQBZ)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**13/16 Spark Plug Socket Set Thin Wall 12 Point 3/8 Drive Magnetic Spark Plug Removal Tool Compatible with Many European and Japanese Vehicles Universal Joint Swivel Socket (13/16inch 6-Point)**starfa lab**$8.82**17 rev5mo ago](https://www.amazon.com/dp/B0GJXBZ35K) [**13/16 Spark Plug Socket Set Thin Wall 12 Point 3/8 Drive Magnetic Spark Plug Removal Tool Compatible with Many European and Japanese Vehicles Universal Joint Swivel Socket (13/16inch 12-Point)**starfa lab**$11.94**17 rev5mo ago](https://www.amazon.com/dp/B0GJX6TB3G) [**pwkauka 3Pcs Spark Plug Socket Wrench Set T-Handle Universal 5/8 & 13/16 Spark Plug Tool Remover and Installer Tool for Motorcycles Lawn Mowers Small Motor Vehicles Car Accessories**pwkauka**$5.98**205 rev10mo ago](https://www.amazon.com/dp/B0FLV5ZYGT) [**Qixiang CB 13/16 Spark Plug Socket Set Thin Walled Magnetic Spark Plug Socket Car Accessories Universal Joint 3/8 Drive 12 Point Swivel Socket Removal Tool (13/16inch)**Qixiang CB**$11.67**110 rev1y ago](https://www.amazon.com/dp/B0F9JZSMVW) [**ELEAD 6-Piece 3/8 Drive Spark Plug Socket Set with Spark Plug Gapper SAE & Metric 5/8 3/4 13/16 14mm 18mm CR-V Sockets with Rubber Holding Rings**ELEAD**$14.08**702 rev1y ago](https://www.amazon.com/dp/B0F8H9W7SD)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**13/16 Spark Plug Socket Set Thin Wall 12 Point 3/8 Drive Magnetic Spark Plug Removal Tool Compatible with Many European and Japanese Vehicles Universal Joint Swivel Socket (13/16inch 6-Point)**starfa lab**$8.82**4.7★**▲ 175%**](https://www.amazon.com/dp/B0GJXBZ35K) [**13/16 Spark Plug Socket Set Thin Wall 12 Point 3/8 Drive Magnetic Spark Plug Removal Tool Compatible with Many European and Japanese Vehicles Universal Joint Swivel Socket (13/16inch 12-Point)**starfa lab**$11.94**4.7★**▲ 157%**](https://www.amazon.com/dp/B0GJX6TB3G) [**GEARWRENCH 3/8 Drive 2-1/2 Spark Plug Socket 13/16 6 Point - 80403**GEARWRENCH**$6.17**4.7★**▲ 91%**](https://www.amazon.com/dp/B009TCBMYI) [**TEKTON 3/8 Inch Drive x 13/16 Inch Deep 6-Point Socket | SHD13021**TEKTON**$6.44**4.8★**▲ 63%**](https://www.amazon.com/dp/B07R7553BS) [**13/16 Spark Plug Socket Magnetic 3/8 Drive 6-Point Spark Plug Removal Tool with Thin Wall Design Universal Magnetic Sockets for Installing and Disassembling Sparks Plugs (13/16 inch)**YGDMD**$7.34**4.6★**▲ 42%**](https://www.amazon.com/dp/B0F1ZZ98R5)
**~~View all trending →~~**
## **What buyers say about 13/16 spark plug socket**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**20%
*“High quality tools at a great price”*
**Advertised Vs Actual Product**15%
*“Works great as intended”*
**Socket/Port/Plug**14%
*“Nice SP socket”*
**Ease Of Use**13%
*“Easy to use”*
**Size-Overall**8%
*“Fits perfectly”*
**Magnetic Strength/Adsorption**5%
*“Strong magnet”*
**Efficiency**5%
*“Works perfectly”*
**Value For Money**5%
*“the price is reasonable”*
**Strength**4%
*“The holder is great”*
**Durability**3%
*“durability was good”*
### **What buyers complain about **
**Socket/Port/Plug**21%
*“wont hold any of the sockets”*
**Size-Overall**13%
*“Did not fit my motorcycle spark plug”*
**Functionality-Overall**13%
*“Didnt get the job done”*
**Quality-Overall**9%
*“Poor quality”*
**Grip**8%
*“However, when I put in the new plug, it does not grip as tight, even allowing the plug to fall off”*
**Advertised Vs Actual Product**6%
*“Very misleading”*
**Ease Of Use**5%
*“Hard to use”*
**Durability**5%
*“Broken on the first use”*
**Rubber Quality**3%
*“Rubber only last for 1 time”*
**Defective Material/Parts**3%
*“Not sure if it was a defective set”*
### **Top return reasons **
**Size-Overall**51%
**Socket/Port/Plug**16%
**Functionality-Overall**5%
**Compatibility-Overall**5%
**Value For Money**3%
**Quality-Overall**3%
**Advertised Vs Actual Product**3%
**Defective Material/Parts**3%
**Rubber Quality**2%
**Magnetic Strength/Adsorption**2%
## **Common questions**
- **Is 13/16 spark plug socket profitable to sell on Amazon United States?**
- The niche generates $55K/yr across 17 tracked products. 0 of 3 products launched in the last 360 days are still selling. 90-day search growth is +22.6%. Flapen's verdict: Skip it (47/100).
- **How competitive is the 13/16 spark plug socket niche?**
- 15 brands and 24 sellers compete. The top 5 products take 60% of clicks and top 5 brands hold 62% of demand.
- **What do buyers complain about in 13/16 spark plug socket?**
- Top complaints mined from reviews: Socket/Port/Plug, Size-Overall, Functionality-Overall. The return rate is 3.0%.
- **When does demand for 13/16 spark plug socket peak?**
- Demand peaks in Apr–May; the busiest month runs 2.3× the quietest.
- **What does it cost to enter the 13/16 spark plug socket niche?**
- Listings span $5.98–$18.30; the average listing price is $9.82 (sweet spot $15–$100). The average incumbent carries 582 reviews — the moat a new listing must climb.
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