Harley Transmission Oil
MaybeAn estimated 0.5% of orders come back. But the top 5 brands take 99% of clicks, so Harley Transmission Oil is a Maybe.
- Flapen Score
- 50 / 100Top 44% of 7,287 Automotive niches · +1 vs the category median of 4950
- Market size
- $191K/yr73K searches / yr
- 90-day growth
- +27.6%search demand this quarter
- Competition
- 52%top-5 click share · 6 brands · 124 sellers
Flapen Score
Harley Transmission Oil against its category
The dotted line is the Automotive average. Past it, Harley Transmission Oil is stronger. Inside it, weaker.
Market
The Harley Transmission Oil market on Amazon at a glance
Shoppers on Amazon United States searched for Harley Transmission Oil 73K times last year and spent an estimated $191K. The top 5 brands take 99% of clicks. Flapen scores it 50 out of 100, a Maybe.
01 · Demand
An estimated 5.3% of those searches ended in a purchase.
Shoppers searched for this 73K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 5.3% of those searches ended in a purchase. Searches in the last 90 days moved +27.6% against the 90 days before. Searches, conversion and average price together put the market at an estimated $191K a year.
- Searches, last 12 months
- 73K
- Growth, 90 days vs prior 90
- +27.6%
- Conversion, latest week
- 5.3%
- Market size, estimated
- $191Ka year
- Top search term
- redline oil31K searches a year
02 · Price
A sale here is worth $48.94.
Listings sell for $48.94 on average, from $13.19 to $160.99. Amazon reports units sold in ranges. This niche sold 5K to 6K a year. The average listing sells 100 to 250 of them. At $48.94 that is $5K to $12K a year per listing.
- Average price
- $48.94inside the $15 to $100 sweet spot
- Price range
- $13.19–$160.99
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 5K–6K
- Units per listing a year
- 100–250
- Revenue per listing a year
- $5K–$12K
- Returns
- 0.5%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is low.
52% of listings pay for placement with sponsored ads. 83% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #451 within Oils & Fluids. It carries 1,027 reviews at 4.78 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 52%
- Prime listings
- 83%
- Out of stock, average day
- 0.0%
- Average rank
- #451in Oils & Fluids
- Average rating
- 4.78 starsAmazon United States average 4.42 stars
- Average reviews
- 1,027per listing
- Listings tracked
- 29
04 · Newcomers
Brands here are established.
The brands on the shelf have sold for 89 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
- 89 months
Products
Top Harley Transmission 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
Red Line 42804 Full Synthetic Gear Oil V-Twin Transmission Oil with Shockproof - 1 Quart
- Price
- $23.08
- Rating
- 4.9/5
- Reviews
- 1,903
- Age
- 16y ago

Bel-Ray Big Twin Transmission Oil Liter 96900-BT1QB
- Price
- $13.19
- Rating
- 4.8/5
- Reviews
- 756
- Age
- 18y ago

Bel-Ray V-Twin SAE 20W-50 Mineral Engine Oil | 4 Liter | SKU: 96905-BT4
- Price
- $33.23
- Rating
- 4.8/5
- Reviews
- 272
- Age
- 14y ago

Red Line 90226 20W50 Powersport Motor Oil V-Twin - 1 Powerpack Kit
- Price
- $148.29
- Rating
- 4.8/5
- Reviews
- 2,583
- Age
- 16y ago

Bel-Ray 96910-BT4 Motor Oils 20W-50 4 Liter
- Price
- $39.24
- Rating
- 4.8/5
- Reviews
- 238
- Age
- 14y ago
Trending
estimated 90-day click momentum
Bel-Ray 96900-BT1 Big-Twin Transmission Oil - 85W140-1L.
- Price
- $19.91
- Rating
- 4.7/5
- Reviews
- 55
- Age
- 8y ago

Red Line 90226 Big Twin 20w50 Power Pack Oil Package with K&N High Performance Oil Filter (Complete Kit Black Filter)
- Price
- $160.99
- Rating
- 4.7/5
- Reviews
- 513
- Age
- 7y ago

Lucas Oil 10791 Synthetic SAE 75W-140 V-Twin Gear Oil - 1 Quart
- Price
- $19.85
- Rating
- 4.7/5
- Reviews
- 505
- Age
- 14y ago

Red Line 50604 MT-LV 70W/75W GL-4 High-Performance Full Synthetic Gear Oil Lubricant for Manual Transmissions & Transaxles - 1 Quart
- Price
- $22.97
- Rating
- 4.7/5
- Reviews
- 485
- Age
- 5y ago

Bel-Ray Big Twin Transmission Oil Liter 96900-BT1QB
- Price
- $13.19
- Rating
- 4.8/5
- Reviews
- 756
- Age
- 18y ago
Newest
by launch date
Bel-Ray Synthetic 3-Hole Complete Oil Change Kit Compatible with Harley-Davidson Big Twin and Sportster 1984-Up 1984-2017 Harley Twin Cam & Evolution Chrome Oil Filter
- Price
- $122.18
- Rating
- 4.9/5
- Reviews
- 12
- Age
- 1y ago

Red Line 42804 V-Twin Transmission Oil with Shockproof - 4 Quarts
- Price
- $84.21
- Rating
- 4.9/5
- Reviews
- 1,903
- Age
- 1y ago

360 Twin 80W-90 High-Performance Transmission Lubricant for V-Twin Motorcycles Premium Gear Oil for Harley-Davidson Superior Wear Protection & Smooth Shifting
- Price
- $13.82
- Rating
- 4.8/5
- Reviews
- 121
- Age
- 3y ago

Red Line 50604 MT-LV 70W/75W GL-4 High-Performance Full Synthetic Gear Oil Lubricant for Manual Transmissions & Transaxles - 1 Quart
- Price
- $22.97
- Rating
- 4.7/5
- Reviews
- 485
- Age
- 5y ago

Red Line 90226 Big Twin 20w50 Power Pack Oil Package with K&N High Performance Oil Filter (Complete Kit Black Filter)
- Price
- $160.99
- Rating
- 4.7/5
- Reviews
- 513
- Age
- 7y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 52% of clicks. Leaders hold, but buyers still shop past them.
Brands
6 falling
Sellers
124
Est. top-5 brand share
99%
Top 20: 100%
Est. top-5 click share
52%
Top 20: 89%
Open market
0%
- Red Line57%
- Bel-Ray34%
- Twisted Choppers3%
- Lucas Oil3%
- 360 Twin2%
- Maxima1%
Demand
Harley Transmission Oil search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: May, Jun, Oct · busiest ÷ quietest = 8.9× · 10 of 12 months tracked
Search terms
Top Harley Transmission Oil search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- redline oil31K/yr
- harley transmission oil7K/yr
- red line oil8K/yr
- belray 20w50 motorcycle oil6K/yr
- bel ray 20w50 v-twin motorcycle oil5K/yr
- harley davidson transmission oil3K/yr
- redline transmission fluid6K/yr
- redline transmission oil for harley davidson4K/yr
- harley davidson transmission fluid3K/yr
Reviews and returns
What reviews say buyers love and hate about Harley Transmission Oil
We read the reviews and the return reasons for every product selling here.
“Not worth the price”
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.
17 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 Harley Transmission 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









