---
title: "Trend — spark plug thread repair kit - Flapen"
canonical_url: "https://flapen.com/research/us/automotive/spark-plug-thread-repair-kit/trend"
last_updated: "2026-08-09T15:52:29.842Z"
locale: en
meta:
  description: "Niche score 58/100 · $121K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
  "og:description": "Niche score 58/100 · $121K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
  "og:title": "Trend — spark plug thread repair kit - Flapen"
---

# **spark plug thread repair kit**

**Worth a look**

Shows a sweet-spot price point ($42.71 avg), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Market size 28Growth 50Conversion 39Competition 70Returns 40Price range 44Avg price 95Brand share 90Review moat 87Quality gap 78

**Avg price**

**Incredible****$42.71**

avg listing price — sweet spot $15–$100

**Brand share**

**Great****45%**

top-5 brand share — no brand owns this niche

**Review moat**

**Great****251.97**

avg incumbent reviews — the moat a new listing must climb

**Quality gap**

**Great****4.3★**

avg incumbent rating — lower means beatable quality

**Competition**

**Good****43%**

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

**Growth**

**Okay****+19.9%**

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

**Price range**

**Okay****$8.52–$203.09**

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

**Returns**

**Okay****3.8%**

return rate — above 5% kills the launch gate

**Conversion**

**Okay****3.1%**

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

**Market size**

**Okay****$121K**

$121K/yr · 90K searches

**Signals**[** No Dominant Brand**](https://flapen.com/research/niches?market=us&signal=no_dominant_brand "Top brand's click share < 20%") [** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500")

## Trend