Liner Puller
FailThe top 5 products take 88% of clicks, so Liner Puller is a Fail.
- Flapen Score
- 39 / 100Ranks 6,186 of 7,287 Automotive niches · −10 vs the category median of 4939
- Market size
- $100K/yr15K searches / yr
- 90-day growth
- -23.2%search demand this quarter
- Competition
- 88%top-5 click share · 10 brands · 29 sellers
Flapen Score
Liner Puller against its category
The dotted line is the Automotive average. Past it, Liner Puller is stronger. Inside it, weaker.
Market
The Liner Puller market on Amazon at a glance
Shoppers on Amazon United States searched for Liner Puller 15K times last year and spent an estimated $100K. The top 5 brands take 88% of clicks. Demand peaks in Apr. Flapen scores it 39 out of 100, a Fail.
01 · Demand
An estimated 4.8% of those searches ended in a purchase.
Shoppers searched for this 15K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 4.8% of those searches ended in a purchase. Searches in the last 90 days moved -23.2% against the 90 days before. Searches, conversion and average price together put the market at an estimated $100K a year.
- Searches, last 12 months
- 15K
- Growth, 90 days vs prior 90
- -23.2%
- Conversion, latest week
- 4.8%
- Market size, estimated
- $100Ka year
- Peak month
- April1.9× the quietest month
- Top search term
- cylinder liner puller6K searches a year
02 · Price
A sale here is worth $137.31.
Listings sell for $137.31 on average, from $13.71 to $554.64. Amazon reports units sold in ranges. This niche sold 500 to 750 a year. The average listing sells 0 to 100 of them. At $137.31 that is $0 to $14K a year per listing.
- Average price
- $137.31above the $15 to $100 sweet spot
- Price range
- $13.71–$554.64
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 500–750
- Units per listing a year
- 0–100
- Revenue per listing a year
- $0–$14K
- Returns
- 2.3%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is low.
82% of listings pay for placement with sponsored ads. 91% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #177 within Engine Tools. It carries 204 reviews at 4.23 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 82%
- Prime listings
- 91%
- Out of stock, average day
- 0.0%
- Average rank
- #177in Engine Tools
- Average rating
- 4.23 starsAmazon United States average 4.42 stars
- Average reviews
- 204per listing
- Listings tracked
- 11
04 · Newcomers
1 of last year's 3 launches cleared the first-year sales bar.
3 products launched here in the last 12 months. 1 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 36 months on average, so the names here are settling in.
- Launched, last 12 months
- 3
- Successful launches
- 1Amazon's first-year sales bar
- Average brand age
- 36 months
Products
Top Liner Puller products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 11, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
Universal Cylinder Liner Puller Assembly Fits for Mack Cummins CAT Caterpillar Works on Heavy Duty Diesel Engines Wet Liners from 3-7/8 to 6-1/4 Bore Comparable to PT-6400-C M50010-B 3376015
- Price
- $138.23
- Rating
- 4.5/5
- Reviews
- 156
- Age
- 5y ago

VEVOR Liner Puller Cylinder Liner Puller Diesel Engines Liner Puller Tool Both Dry-Type and Wet-Type Fit Diameter of 75 mm-138 mm Universal Cylinder Liner Puller Tool Set for Auto Repair
- Price
- $56.12
- Rating
- 4.2/5
- Reviews
- 237
- Age
- 4y ago

VEVOR Universal Cylinder Liner Puller Assembly Used for Mack Cummins Cat on Wet Liner from 3-7/8 in to 6-1/4 in Bore Diesel Engine Cylinder Liner Removal Tool Replace PT-6400-C M50010-B 3376015
- Price
- $89.58
- Rating
- 5.0/5
- Reviews
- 12
- Age
- 11mo ago

Runant Universal Cylinder Liner Puller Assembly for Mack Cummins CAT Caterpillar Heavy Duty Engine Liner Puller Tool Fits 3-7/8 to 6-1/4 Bore Replaces PT-6400-C M50010-B 3376015
- Price
- $135.87
- Rating
- 5.0/5
- Reviews
- 2
- Age
- 1y ago

SCBoutique Universal Cylinder Liner Puller for Cummins CAT Mack 3-7/8 to 6-1/4 Bore Diesel Engines - Replaces PT-6400-C M50010-B (Engine Puller)
- Price
- $140.36
- Rating
- 5.0/5
- Reviews
- 3
- Age
- 10mo ago
Trending
estimated 90-day click momentum
15T Hydraulic Cylinder Liner Puller Tool Universal Cylinder Sleeve Removal Kit for 3.15-5.51 Inner Diameter Dry & Wet Type Liner Puller for Automotive & Heavy Equipment Maintenance
- Price
- $93.74
- Rating
- 3.0/5
- Reviews
- 1
- Age
- 7mo ago

maXpeedingrods Universal Cylinder Liner Puller Assembly Diesel Engine Cylinder Liner Removal Tool for Mack Cummins CAT on Wet Liner from 3-7/8 to 6-1/4 bore PT-6400-C M50010-B 3376015
- Price
- $119.91
- Rating
- 2.9/5
- Reviews
- 6
- Age
- 1y ago

VEVOR Universal Cylinder Liner Puller Assembly Used for Mack Cummins Cat on Wet Liner from 3-7/8 in to 6-1/4 in Bore Diesel Engine Cylinder Liner Removal Tool Replace PT-6400-C M50010-B 3376015
- Price
- $89.58
- Rating
- 5.0/5
- Reviews
- 12
- Age
- 11mo ago

Compression Sleeve Puller Tool Remove Nut & Ferrule Of Pipe 03943 Sleeve Remover For 1/2 Compression Fittings Only Corroded & Frozen Supply Stops Plumbing Tools Compression Ring Removal Tool
- Price
- $13.71
- Rating
- 4.6/5
- Reviews
- 1,567
- Age
- 3y ago

Runant Universal Cylinder Liner Puller Assembly for Mack Cummins CAT Caterpillar Heavy Duty Engine Liner Puller Tool Fits 3-7/8 to 6-1/4 Bore Replaces PT-6400-C M50010-B 3376015
- Price
- $135.87
- Rating
- 5.0/5
- Reviews
- 2
- Age
- 1y ago
Newest
by launch date
15T Hydraulic Cylinder Liner Puller Tool Universal Cylinder Sleeve Removal Kit for 3.15-5.51 Inner Diameter Dry & Wet Type Liner Puller for Automotive & Heavy Equipment Maintenance
- Price
- $93.74
- Rating
- 3.0/5
- Reviews
- 1
- Age
- 7mo ago

SCBoutique Universal Cylinder Liner Puller for Cummins CAT Mack 3-7/8 to 6-1/4 Bore Diesel Engines - Replaces PT-6400-C M50010-B (Engine Puller)
- Price
- $140.36
- Rating
- 5.0/5
- Reviews
- 3
- Age
- 10mo ago

VEVOR Universal Cylinder Liner Puller Assembly Used for Mack Cummins Cat on Wet Liner from 3-7/8 in to 6-1/4 in Bore Diesel Engine Cylinder Liner Removal Tool Replace PT-6400-C M50010-B 3376015
- Price
- $89.58
- Rating
- 5.0/5
- Reviews
- 12
- Age
- 11mo ago

Runant Universal Cylinder Liner Puller Assembly for Mack Cummins CAT Caterpillar Heavy Duty Engine Liner Puller Tool Fits 3-7/8 to 6-1/4 Bore Replaces PT-6400-C M50010-B 3376015
- Price
- $135.87
- Rating
- 5.0/5
- Reviews
- 2
- Age
- 1y ago

Vorhixa 6 Pcs Plumbing Tools Kit with Angle Stop Wrench & 1/2-Inch Compression Sleeve Puller Professional Plumbers Wrench Sandpaper and Storage Bag for Frozen/Corroded Angle Stop
- Price
- $29.42
- Rating
- 4.6/5
- Reviews
- 230
- Age
- 1y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 88% of clicks. A locked shelf that new listings rarely crack.
Brands
10 falling
Sellers
29
Est. top-5 brand share
88%
Top 20: 100%
Est. top-5 click share
88%
Top 20: 100%
Open market
9%
- VEVOR38%
- Bonbo35%
- Runant5%
- SCBoutique5%
- Debialo5%
- OTC3%
- Open — no brand owns it (4 brands, 9%)
Demand
Liner Puller search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Apr · busiest ÷ quietest = 1.9×
Search terms
Top Liner Puller search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- cylinder liner puller6K/yr
- sleeve puller5K/yr
- liner puller4K/yr
Reviews and returns
What reviews say buyers love and hate about Liner Puller
We read the reviews and the return reasons for every product selling here.
“Poor quality control”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
18 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Liner Puller questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









