Trailer Hub Cap
MaybeBuyers convert on 11.2% of searches. But the products selling today already average 4.6★, so Trailer Hub Cap is a Maybe.
- Flapen Score
- 61 / 100Top 8% of 7,287 Automotive niches · +12 vs the category median of 4961
- Market size
- $331K/yr235K searches / yr
- 90-day growth
- +73.8%search demand this quarter
- Competition
- 52%top-5 click share · 17 brands · 41 sellers
Flapen Score
Trailer Hub Cap against its category
The dotted line is the Automotive average. Past it, Trailer Hub Cap is stronger. Inside it, weaker.
Market
The Trailer Hub Cap market on Amazon at a glance
Shoppers on Amazon United States searched for Trailer Hub Cap 235K times last year and spent an estimated $331K. The top 5 brands take 74% of clicks. Demand peaks in May–Jun–Aug. Flapen scores it 61 out of 100, a Maybe.
01 · Demand
An estimated 11.2% of those searches ended in a purchase.
Shoppers searched for this 235K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 11.2% of those searches ended in a purchase. Searches in the last 90 days moved +73.8% against the 90 days before. Searches, conversion and average price together put the market at an estimated $331K a year.
- Searches, last 12 months
- 235K
- Growth, 90 days vs prior 90
- +73.8%
- Conversion, latest week
- 11.2%
- Market size, estimated
- $331Ka year
- Peak month
- May3.3× the quietest month
- Top search term
- bearing buddy caps50K searches a year
02 · Price
A sale here is worth $12.50.
Listings sell for $12.50 on average, from $5.18 to $42.35. Amazon reports units sold in ranges. This niche sold 25K to 30K a year. The average listing sells 750 to 1,000 of them. At $12.50 that is $9K to $13K a year per listing.
- Average price
- $12.50under the $15 to $100 sweet spot
- Price range
- $5.18–$42.35
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 25K–30K
- Units per listing a year
- 750–1,000
- Revenue per listing a year
- $9K–$13K
- Returns
- 2.6%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is ads.
93% 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 #32 within Trailer Accessories. It carries 756 reviews at 4.59 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 93%
- Prime listings
- 100%
- Out of stock, average day
- 0.0%
- Average rank
- #32in Trailer Accessories
- Average rating
- 4.59 starsAmazon United States average 4.42 stars
- Average reviews
- 756per listing
- Listings tracked
- 28
04 · Newcomers
0 of last year's 2 launches cleared the first-year sales bar.
2 products launched here in the last 12 months. 0 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 43 months on average, so the names here are settling in.
- Launched, last 12 months
- 2
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 43 months
Products
Top Trailer Hub Cap 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 8, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
Bearing Buddy Bra 19B - 1 Pair USA-Made Black Vinyl Covers - Protects and Keeps Grease Off the Trailer Wheels - Fits Models: 1980 1980A 1938 1968 2047 2080 & 2080T
- Price
- $8.47
- Rating
- 4.7/5
- Reviews
- 3,827
- Age
- 20y ago

SUNCARACCL 4 Pack Trailer Hub Cap Rubber Plugs Fits 1.98 Inch Trailer Hub Dust Caps Rubber Grease Plug for Most 2000 to 3500 Pound Dexter EZ Lube Trailer Camper Axle
- Price
- $5.44
- Rating
- 4.6/5
- Reviews
- 623
- Age
- 3y ago

iBroPrat 2pcs Trailer Axle Dust Cap Cup Grease Cover 1.98 Hub with Extra 2 Rubber Plugs Trailer Axle Wheel Hub and Bearing Dust Cap for Most 2000 to 3500 Pound Axles Dexter
- Price
- $7.97
- Rating
- 4.4/5
- Reviews
- 904
- Age
- 4y ago

GREPSPUD 4pcs 1.98 Trailer Hub Dust Caps Trailer Spindle Bearing Dust Cap Cup Grease Cover Caps & Extra Rubber Plugs for 2000 to 3500 lb Boat Trailer Dexter EZ Lube Trailer Camper RV Axle
- Price
- $9.91
- Rating
- 4.6/5
- Reviews
- 1,428
- Age
- 4y ago

FDXGYH 4 Pcs 1.98-Inch Bearing Bars Cover Bearing Rubber Caps Trailer Wheel Hub Dust Covers Replacement Bearing Protector (Black)
- Price
- $8.95
- Rating
- 4.5/5
- Reviews
- 275
- Age
- 3y ago
Trending
estimated 90-day click momentum
Bearing Buddy Caps - Trailer Hub Cap Protector for Trailers Stainless Steel Buddy Bearing Caps of 1.980 Diameter -Bearing Buddies for Trailers to Keep Water Dirt out of Hub and Bearings
- Price
- $42.35
- Rating
- 4.7/5
- Reviews
- 661
- Age
- 8y ago

AIUWIZO 1.98 Trailer Axle Dust Cap Cup 4PCS Grease Caps with 4 Extra Rubber Plugs Trailer Hub Bearing Dust Cap for 2000-3500 lb Trailers Axle Wheel Hub
- Price
- $7.31
- Rating
- 4.8/5
- Reviews
- 37
- Age
- 8mo ago

Bearing Buddy Bra 17B - 1 Pair USA-Made Black Vinyl Covers - Protects and Keeps Grease Off the Trailer Wheels - Fits Models: 1781 1810
- Price
- $8.65
- Rating
- 4.7/5
- Reviews
- 540
- Age
- 22y ago

OZISENS 2pcs 1.98 Trailer Hub Dust Caps Bearing Center Replacement Trailer Cup Trailer Hub Grease Cap for Most 2000 to 3500 Ib Boat Trailer Dexter EZ Lube
- Price
- $7.04
- Rating
- 4.6/5
- Reviews
- 42
- Age
- 11mo ago

Bearing Buddy 1980A-SS - USA-Made Stainless Steel Bearing Protector w/ 19B Bra & Blue Grease Indicator - Trailer Hub Grease Cap Replacement for Boats RVs & More - Fits Hubs w/ 1.980 Inside Diameter
- Price
- $38.54
- Rating
- 4.8/5
- Reviews
- 2,123
- Age
- 10y ago
Newest
by launch date
AIUWIZO 1.98 Trailer Axle Dust Cap Cup 4PCS Grease Caps with 4 Extra Rubber Plugs Trailer Hub Bearing Dust Cap for 2000-3500 lb Trailers Axle Wheel Hub
- Price
- $7.31
- Rating
- 4.8/5
- Reviews
- 37
- Age
- 8mo ago

OZISENS 2pcs 1.98 Trailer Hub Dust Caps Bearing Center Replacement Trailer Cup Trailer Hub Grease Cap for Most 2000 to 3500 Ib Boat Trailer Dexter EZ Lube
- Price
- $7.04
- Rating
- 4.6/5
- Reviews
- 42
- Age
- 11mo ago

Trailer Hub Cap Plugs Grease Rubber Plugs for 1.98/2.44/2.72 Trailer Axle Cap Trailer Dust Bearing Cap Cup for Most 2000 to 3500 Pound Trailer RV Camper Wheel Cover Axle 4 Pcs
- Price
- $5.18
- Rating
- 4.7/5
- Reviews
- 199
- Age
- 1y ago

MorningRo 2 Pcs 1.98 Axle Grease Cap Trailer Hub Dust Caps Grease Fitting Caps for Most Standard 2000 to 3500 Pound Axles
- Price
- $14.02
- Rating
- 4.2/5
- Reviews
- 109
- Age
- 1y ago

COMVERIX 1.98 Trailer Hub Caps (4PCS) with Rubber Plugs & Installation Tool Snug-Fit Rust-Resistant Bearing Dust Caps for 2000-3500 lb Axles Protects Trailer Hubs from Dirt and Moisture
- Price
- $10.77
- Rating
- 4.4/5
- Reviews
- 144
- Age
- 1y 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
17 falling
Sellers
41
Est. top-5 brand share
74%
Top 20: 100%
Est. top-5 click share
52%
Top 20: 90%
Open market
20%
- Bearing Buddy29%
- GREPSPUD12%
- iBroPrat12%
- SUNCARACCL12%
- JDMSPEED8%
- FDXGYH6%
Demand
Trailer Hub Cap search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: May, Jun, Aug · busiest ÷ quietest = 3.3×
Search terms
Top Trailer Hub Cap search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- bearing buddy caps50K/yr
- trailer bearing dust cap20K/yr
- trailer hub cap21K/yr
- trailer hub grease cap16K/yr
- trailer grease cap11K/yr
- bearing buddy rubber caps7K/yr
- trailer axle grease cap12K/yr
- trailer dust cap12K/yr
- trailer axle dust cap12K/yr
- buddy bearing caps9K/yr
Reviews and returns
What reviews say buyers love and hate about Trailer Hub Cap
We read the reviews and the return reasons for every product selling here.
“Too big”
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 Trailer Hub Cap 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









