helicoil kit
Worth a lookShows a sweet-spot price point ($39.09 avg), but strong incumbent ratings (4.5★) keeps it on the watch list.
Avg price
Incredible$39.09avg listing price — sweet spot $15–$100
Price range
Great$8.15–$69.25cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Good596.22avg incumbent reviews — the moat a new listing must climb
Returns
Good2.1%return rate — above 5% kills the launch gate
Market size
Good$516K$516K/yr · 400K searches
Brand share
Okay78%top-5 brand share — brands hold most of the demand
Competition
Okay59%top-5 click share — leaders hold, buyers still browse
Conversion
Okay3.3%search→purchase rate — share of searches ending in a sale
Growth
Okay+11.1%90-day search growth — must beat 0% to launch
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
According to Flapen's Amazon United States niche tracking, helicoil kit is a $516K/yr Amazon United States market (400K searches/yr). The top 5 brands hold 78% of demand. Verdict: Worth a look — 54/100.
Data updated Jul 12, 2026 · scored weekly · How we score niches
helicoil kit market data
- Units sold / yr
- 13K–15K
- avg 500–750/product
- Revenue / yr
- $489K–$586K
- units × avg price
- Conversion rate
- 3.3%
- Avg BSR
- #19
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 96%
- Out of stock
- 0.0%
- Avg brand age
- 44 months
- Avg seller age
- 162 days
Competition & brand share
The top 5 products take 59% of clicks — established leaders, but buyers still shop beyond them.Brands
15 falling
Sellers
18
Top-5 brand share
78%
Top 20: 100%
Top-5 click share
59%
Top 20: 97%
Open market
19%
- SEDY30%
- Orion Motor Tech21%
- BILITOOLS16%
- HORUSDY7%
- LEONTOOL4%
- coobeast4%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +11.1% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.3×
Top helicoil kit search terms
- helicoil thread repair kit118K/yr
- thread repair kit70K/yr
- helicoil kit57K/yr
- helicoil49K/yr
- heli coil thread repair kits24K/yr
- thread repair16K/yr
- thread repair kits11K/yr
- heli coil12K/yr
- metric thread repair kit6K/yr
- helicoil thread repair kit metric5K/yr
Top helicoil kit 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.
All 23 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
SEDY Helicoil Thread Repair Tool Kit: 320-Piece Metric SAE Heli Coil Rethreading Insert Drill Bits Spark Plug Automotive Engine Motor Stud Bolt Tap Universal Threaded Restorer Restoring Rethread
SEDY$52.724.6★288 rev
Orion Motor Tech 172pc Thread Repair Kit Metric Thread Restorer Kit with HSS Drill Bits Taps Inserts Breakoff Installation Tools Auto Rethreading Restorer Tool Kit in M5 M6 M8 M10 M12 Sizes
Orion Motor Tech$31.224.5★1,401 rev
BILITOOLS Helicoil Thread Repair Kit Metric
BILITOOLS$38.214.4★268 rev
Metric Helicoil Thread Repair Kit: 131-Piece Heli Coil HSS Drills Inserts Taps & Tools M5 M6 M8 M10 M12 Automotive Engine Spark Plug Cylinder Insertion Rethreading Tools Universal Rethread Restorer
SEDY$28.164.6★1,105 rev
HORUSDY 348-Piece Thread Repair Kit Metric & SAE Helicoil Set with HSS Drill Bits Thread Inserts Taps & Installation Tools for Damaged Thread Engine Spark Plug & Automotive Repair
HORUSDY$53.204.6★1,280 rev
Newest
by launch date
coobeast Thread Repair Kit Thread Repair Tool with HSS Drill Bit & 30pcs 304 Stainless Steel Inserts Complete Helicoil Rethreading Tool Set for Automotive Engine with Portable Carry Case M6x1.0
coobeast$11.6386 rev
coobeast 131PCS Thread Repair Kit Metric Helicoil Repair Kit with HSS Drill Bits 304 Stainless Steel Thread Insert & Rethreading Tool Set in M5 M6 M8 M10 M12 for Automotive Engine Spark Plug Repair
coobeast$29.3786 rev
HORUSDY 348-Piece Thread Repair Kit Metric & SAE Helicoil Set with HSS Drill Bits Thread Inserts Taps & Installation Tools for Damaged Thread Engine Spark Plug & Automotive Repair
HORUSDY$53.201,280 rev
ZIMISI 30PCS M6 x 1.0mm Thread Repair Insert Kit Stainless Steel Helicoil Inserts Set Compatible Hand Tool Set M6 Thread Metric Helicoil Repair Kit Assortment for Car Repairing
ZIMISI$8.1535 rev
KUNGJUER 263PCS Helicoil Thread Repair Kit Metric&SAE Thread Restorer Kit
KUNGJUER$48.6778 rev
Trending
90-day click momentum
Orion Motor Tech 344pc Thread Repair Kit SAE and Metric Thread Restorer Kit with HSS Drill Bits Taps Inserts Auto Rethreading Restorer Tool Kit in 1/4 5/16 3/8 7/16 1/2 & M5 M6 M8 M10 M12 Sizes
Orion Motor Tech$64.414.5★
TAILUG Thread Repair Kit 261-Piece HSS Drill Helicoil Repair Kit SAE & Metric 1/4 5/16 3/8 7/16 1/2 M5 M6 M8 M10 M12 with HSS Drill Threaded Inserts Screw Tap Installation and Tang Break Tool
TAILUG$69.254.5★
HORUSDY 348-Piece Thread Repair Kit Metric & SAE Helicoil Set with HSS Drill Bits Thread Inserts Taps & Installation Tools for Damaged Thread Engine Spark Plug & Automotive Repair
HORUSDY$53.204.6★
KUNGJUER 263PCS Helicoil Thread Repair Kit Metric&SAE Thread Restorer Kit
KUNGJUER$48.674.4★
JMMRRR 263PCS Thread Repair Kit HSS Drill Helicoil Kit Rethreading Tool
JMMRRR$47.964.5★
What buyers say about helicoil kit
What buyers praise and complain about, mined from review topics.What buyers love
“Awesome quality”
“much cheaper”
“Easy to use”
“Works as intended”
“And having multiple sizes really saved me in a few situations”
“Worked very well”
“Coils seem to hold well”
“was very easy to install”
“Followed directions it works perfect”
“What you need for repairs on most applications good to have”
What buyers complain about
“Cheaply made poor quality”
“One time use and breaks”
“One of the bits broke in the first try”
“Cheap, not durable, soft metal”
“This is NOT for spark plugs as stated in the title”
“waste of money”
“Only problem for me was trying to read the sizes on taps and drills”
“Cheap material”
“Waste of money”
“I cant explain how upset i am trying to fix the threads to mount a motor mount”
Top return reasons
Common questions
- Is helicoil kit profitable to sell on Amazon United States?
- The niche generates $516K/yr across 23 tracked products. 1 of 3 products launched in the last 360 days are still selling. 90-day search growth is +11.1%. Flapen's verdict: Worth a look (54/100).
- How competitive is the helicoil kit niche?
- 15 brands and 18 sellers compete. The top 5 products take 59% of clicks and top 5 brands hold 78% of demand.
- What do buyers complain about in helicoil kit?
- Top complaints mined from reviews: Quality-Overall, Durability, Defective Material/Parts. The return rate is 2.1%.
- When does demand for helicoil kit peak?
- Demand is steady year-round — the busiest month runs 1.3× the quietest.
- What does it cost to enter the helicoil kit niche?
- Listings span $8.15–$69.25; the average listing price is $39.09 (sweet spot $15–$100). The average incumbent carries 596 reviews — the moat a new listing must climb.