Lower Unit Gear Oil
MaybeAn estimated 0.7% of orders come back. But the top 5 brands take 97% of clicks, so Lower Unit Gear Oil is a Maybe.
- Flapen Score
- 52 / 100Top 35% of 7,287 Automotive niches · +3 vs the category median of 4952
- Market size
- $207K/yr101K searches / yr
- 90-day growth
- +77.9%search demand this quarter
- Competition
- 88%top-5 click share · 6 brands · 90 sellers
Flapen Score
Lower Unit Gear Oil against its category
The dotted line is the Automotive average. Past it, Lower Unit Gear Oil is stronger. Inside it, weaker.
Market
The Lower Unit Gear Oil market on Amazon at a glance
Shoppers on Amazon United States searched for Lower Unit Gear Oil 101K times last year and spent an estimated $207K. The top 5 brands take 97% of clicks. Demand peaks in Jan–Feb–Jul–Dec. Flapen scores it 52 out of 100, a Maybe.
01 · Demand
An estimated 12.4% of those searches ended in a purchase.
Shoppers searched for this 101K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 12.4% of those searches ended in a purchase. Searches in the last 90 days moved +77.9% against the 90 days before. Searches, conversion and average price together put the market at an estimated $207K a year.
- Searches, last 12 months
- 101K
- Growth, 90 days vs prior 90
- +77.9%
- Conversion, latest week
- 12.4%
- Market size, estimated
- $207Ka year
- Peak month
- December7.3× the quietest month
- Top search term
- lower unit gear oil25K searches a year
02 · Price
A sale here is worth $16.50.
Listings sell for $16.50 on average, from $10.80 to $25.27. Amazon reports units sold in ranges. This niche sold 15K to 20K a year. The average listing sells 2,000 to 2,500 of them. At $16.50 that is $33K to $41K a year per listing.
- Average price
- $16.50inside the $15 to $100 sweet spot
- Price range
- $10.80–$25.27
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 15K–20K
- Units per listing a year
- 2,000–2,500
- Revenue per listing a year
- $33K–$41K
- Returns
- 0.7%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is reviews.
89% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #14 within Oils & Fluids. It carries 1,712 reviews at 4.60 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 89%
- Prime listings
- 100%
- Out of stock, average day
- 0.0%
- Average rank
- #14in Oils & Fluids
- Average rating
- 4.60 starsAmazon United States average 4.42 stars
- Average reviews
- 1,712per listing
- Listings tracked
- 9
04 · Newcomers
Brands here are established.
The brands on the shelf have sold for 94 months on average, so the names here are established.
- Launched, last 12 months
- 0
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 94 months
Products
Top Lower Unit Gear Oil 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 9, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
Quicksilver SAE 90 High Performance Gear Lube for Outboards and Sterndrives 32 oz
- Price
- $15.37
- Rating
- 4.9/5
- Reviews
- 6,695
- Age
- 16y ago

Quicksilver SAE 90 High Performance Gear Lube and Pump Kit for Mercury Outboards and Mercruiser Sterndrives 32 Fl. Oz.
- Price
- $25.27
- Rating
- 4.6/5
- Reviews
- 911
- Age
- 12y ago

Quicksilver by Mercury Marine 80W-90 Premium Gear Lube Marine Engine 32 oz.
- Price
- $17.55
- Rating
- 4.8/5
- Reviews
- 1,973
- Age
- 16y ago

Bolaxin Lower Unit Gear Oil Pump for Standard Quart Bottles 3/8 inch Metal Swivel 8mm and 10mm Adapters for Most Marine Boat Outboard Motors (NOT for Volvo Penta)
- Price
- $12.81
- Rating
- 4.0/5
- Reviews
- 342
- Age
- 2y ago

Lucas Oil 10652 Synthetic SAW 75W-90 M8 Marine Gear Oil - 1 Quart
- Price
- $18.10
- Rating
- 4.7/5
- Reviews
- 438
- Age
- 15y ago
Trending
estimated 90-day click momentum
Outboard Lower Unit Gear Lube Oil Pump for Mercury Yamaha Evinrude Motors
- Price
- $15.00
- Rating
- 4.2/5
- Reviews
- 185
- Age
- 1y ago

Quicksilver SAE 90 High Performance Gear Lube and Pump Kit for Mercury Outboards and Mercruiser Sterndrives 32 Fl. Oz.
- Price
- $25.27
- Rating
- 4.6/5
- Reviews
- 911
- Age
- 12y ago

STAR BRITE Star Tron High Viscosity Lower Unit Gear Lube 80W90 - Anti-Wear Rust & Corrosion Inhibitors Ideal for Outboard Motors & Stern Drives - 32 OZ (027032)
- Price
- $16.62
- Rating
- 4.6/5
- Reviews
- 178
- Age
- 22y ago

Valvoline Daily Protection 80W-90 Gear Oil 1 Quart
- Price
- $10.80
- Rating
- 4.8/5
- Reviews
- 4,129
- Age
- 22y ago

Bolaxin Lower Unit Gear Oil Pump for Standard Quart Bottles 3/8 inch Metal Swivel 8mm and 10mm Adapters for Most Marine Boat Outboard Motors (NOT for Volvo Penta)
- Price
- $12.81
- Rating
- 4.0/5
- Reviews
- 342
- Age
- 2y ago
Newest
by launch date
Outboard Lower Unit Gear Lube Oil Pump for Mercury Yamaha Evinrude Motors
- Price
- $15.00
- Rating
- 4.2/5
- Reviews
- 185
- Age
- 1y ago

Bolaxin Lower Unit Gear Oil Pump for Standard Quart Bottles 3/8 inch Metal Swivel 8mm and 10mm Adapters for Most Marine Boat Outboard Motors (NOT for Volvo Penta)
- Price
- $12.81
- Rating
- 4.0/5
- Reviews
- 342
- Age
- 2y ago

Quicksilver SAE 90 High Performance Gear Lube and Pump Kit for Mercury Outboards and Mercruiser Sterndrives 32 Fl. Oz.
- Price
- $25.27
- Rating
- 4.6/5
- Reviews
- 911
- Age
- 12y ago

Lucas Oil 10652 Synthetic SAW 75W-90 M8 Marine Gear Oil - 1 Quart
- Price
- $18.10
- Rating
- 4.7/5
- Reviews
- 438
- Age
- 15y ago

Quicksilver SAE 90 High Performance Gear Lube for Outboards and Sterndrives 32 oz
- Price
- $15.37
- Rating
- 4.9/5
- Reviews
- 6,695
- Age
- 16y 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
6 rising
Sellers
90
Est. top-5 brand share
97%
Top 20: 100%
Est. top-5 click share
88%
Top 20: 100%
Open market
0%
- Quicksilver76%
- Bolaxin7%
- STAR BRITE6%
- Lucas Oil5%
- Valvoline4%
- SeaSierra3%
Demand
Lower Unit Gear Oil search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Jan, Feb, Jul, Dec · busiest ÷ quietest = 7.3×
Search terms
Top Lower Unit Gear Oil search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- lower unit gear oil25K/yr
- marine gear oil14K/yr
- outboard lower unit gear oil8K/yr
- quicksilver gear lube6K/yr
- gear lube8K/yr
- lower unit oil6K/yr
- quicksilver gear lube 908K/yr
- marine gear lube6K/yr
- marine lower unit gear oil5K/yr
- outboard gear oil4K/yr
Reviews and returns
What reviews say buyers love and hate about Lower Unit Gear Oil
We read the reviews and the return reasons for every product selling here.
“adapters don't fit”
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 Lower Unit Gear Oil 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









