royal purple oil filter
Worth a lookShows low returns (0.8%), but brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list.
Returns
Incredible0.8%return rate — above 5% kills the launch gate
Price range
Great$10.55–$65.28cheapest to priciest tracked listing — scored on the share inside $15–$100
Avg price
Great$17.21avg listing price — sweet spot $15–$100
Conversion
Great8.0%search→purchase rate — share of searches ending in a sale
Market size
Good$318K$318K/yr · 231K searches
Competition
Okay57%top-5 click share — leaders hold, buyers still browse
Review moat
Okay2,492.11avg incumbent reviews — the moat a new listing must climb
Growth
Okay+10.0%90-day search growth — must beat 0% to launch
Quality gap
Bad4.8★avg incumbent rating — lower means beatable quality
Brand share
Bad100%top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, royal purple oil filter is a $318K/yr Amazon United States market (231K searches/yr). The top 5 brands hold 100% of demand. Verdict: Worth a look — 50/100.
Data updated Jul 9, 2026 · scored weekly · How we score niches
royal purple oil filter market data
- Units sold / yr
- 15K–20K
- avg 500–750/product
- Revenue / yr
- $258K–$344K
- units × avg price
- Conversion rate
- 8.0%
- Avg BSR
- #321
- Page quality
- 0%
- Prime
- 96%
- Sponsored
- 96%
- Out of stock
- 12.5%
- Avg brand age
- 78 months
- Avg seller age
- 147 days
Competition & brand share
The top 5 products take 57% of clicks — established leaders, but buyers still shop beyond them.Brands
3 flat
Sellers
94
Top-5 brand share
100%
Top 20: 100%
Top-5 click share
57%
Top 20: 92%
Open market
0%
- K&N69%
- Mobil31%
- Royal Purple1%
- Open — no brand owns it (0%)
Top royal purple oil filter search terms
- k&n oil filter93K/yr
- royal purple oil filter37K/yr
- kn oil filter17K/yr
- m1-212a mobil 1 oil filter13K/yr
- k and n oil filter15K/yr
- m1-212a8K/yr
- oil filter k&n10K/yr
- mobil 1 oil filter m1-212a6K/yr
- mobil 1 m1-212a5K/yr
- k & n oil filter5K/yr
Top royal purple oil filter 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 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
K&N Premium Oil Filter: 20 000 Mile Engine Protection with Wrench Off Nut: Compatible with Select 1990-2026 INFINITI/MAZDA/NISSAN/SUBARU Vehicle Models (See Description for Select Models) HP-1008
K&N$15.674.8★5,973 rev
Mobil 1 M1-212A Extended Performance Oil Filter 1 Pack
Mobil$16.884.7★2,227 rev
Mobil 1 M1-212 / M1-212A Extended Performance Oil Filter (Pack of 2)
Mobil$23.994.7★2,227 rev
K&N Premium Oil Filter: 20 000 Mile Engine Protection with Wrench Off Nut: Compatible with Select 2007-2026 ALFA ROMEO/BUICK/CHEVROLET/DODGE Vehicle Models (See Description for Select Models) HP-1017
K&N$14.934.8★3,112 rev
K&N Premium Oil Filter: 20 000 Mile Engine Protection with Wrench Off Nut: Compatible with Select 1988-2026 HYUNDAI/KIA/SUBARU/HONDA Vehicle Models (See Product Description for Select Models) HP-1004
K&N$15.164.8★1,814 rev
Newest
by launch date
K&N Select Oil Filter: Designed to Protect your Engine: Fits Select 1998-2027 INFINITI/MAZDA/NISSAN/SUBARU Vehicle Models (See Product Description for Full List of Compatible Vehicles) SO-1008
K&N$10.98693 rev
K&N Select Oil Filter: Designed to Protect your Engine: Fits Select 1991-2027 ACURA/HONDA/MITSUBISHI/NISSAN Vehicle Models (See Product Description for Full List of Compatible Vehicles) SO-1010
K&N$10.77911 rev
K&N Select Oil Filter: Designed to Protect your Engine: Fits Select FORD/LINCOLN/TOYOTA/VOLKSWAGEN Vehicle Models (See Product Description for Full List of Compatible Vehicles) SO-1002
K&N$10.56364 rev
K&N Select Oil Filter: Designed to Protect your Engine: Fits Select 2007-2026 ALFA ROMEO/BUICK/CHEVROLET/DODGE Vehicle Models (See Product Description for Full List of Compatible Vehicles) SO-1017
K&N$11.05496 rev
K&N Premium Oil Filter: 20 000 Mile Engine Protection with Wrench Off Nut: Compatible with 2011-2026 GMC/Cadillac/Chervolet/Buick (See Product Description for Select Models) HP-2012
K&N$14.60561 rev
Trending
90-day click momentum
K&N Motorcycle Oil Filter: High Performance Premium Designed to be used with Synthetic or Conventional Oils Wrench Off Nut: Fits Select Polaris Side-by-Side and ATV Models KN-198
K&N$16.014.8★
Mobil 1 M1-212 / M1-212A Extended Performance Oil Filter (Pack of 2)
Mobil$23.994.7★
K&N Motorcycle Oil Filter: High Performance Premium Designed to be used with Synthetic or Conventional Oils Wrench Off Nut: Fits Select Harley Davidson Motorcycles KN-171B
K&N$14.474.8★
K&N Motorcycle Oil Filter: High Performance Premium Designed to be used with Synthetic or Conventional Oils Wrench Off Nut: Fits Select Harley Davidson Buell Motorcycles KN-171C
K&N$15.914.8★
Mobil 1 M1-212A Extended Performance Oil Filter 1 Pack
Mobil$16.884.7★
What buyers say about royal purple oil filter
What buyers praise and complain about, mined from review topics.What buyers love
“Great filters for the money”
“This filter was good quality”
“Fit perfect”
“well worth the price”
“Installing”
“Very easy to use”
“As advertised”
“It look likes to does really good job”
“Durable”
“Makes oil change easier”
What buyers complain about
“Sent me a filter with no gasket on it”
“Not compatible”
“Quality control issues”
“Does not fit 2023 Honda Odyssey”
“Posible oil leaks due to poor seal”
“Rusted and peeling badly after a few months”
“Not worth the money”
“Poor job listing the correct item”
“have not installed it yet until I checked 1 last thing”
“The shape at the top is wrong”
Top return reasons
Common questions
- Is royal purple oil filter profitable to sell on Amazon United States?
- The niche generates $318K/yr across 27 tracked products. 90-day search growth is +10.0%. Flapen's verdict: Worth a look (50/100).
- How competitive is the royal purple oil filter niche?
- 3 brands and 94 sellers compete. The top 5 products take 57% of clicks and top 5 brands hold 100% of demand.
- What do buyers complain about in royal purple oil filter?
- Top complaints mined from reviews: Filtration, Compatibility-Overall, Quality-Overall. The return rate is 0.8%.
- What does it cost to enter the royal purple oil filter niche?
- Listings span $10.55–$65.28; the average listing price is $17.21 (sweet spot $15–$100). The average incumbent carries 2,492 reviews — the moat a new listing must climb.