u joint
Skip itBrand-locked demand (top 5 brands take 99% of clicks) — this niche doesn't clear our bar today.
Avg price
Incredible$22.85avg listing price — sweet spot $15–$100
Price range
Great$8.58–$65.84cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Great400.98avg incumbent reviews — the moat a new listing must climb
Competition
Great38%top-5 click share — an open shelf
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Market size
Okay$177K$177K/yr · 343K searches
Conversion
Okay2.3%search→purchase rate — share of searches ending in a sale
Growth
Bad-1.1%90-day search growth — must beat 0% to launch
Returns
Bad7.2%return rate — above 5% kills the launch gate
Brand share
Bad99%top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, u joint is a $177K/yr Amazon United States market (343K searches/yr). The top 5 brands hold 99% of demand. Verdict: Skip it — 42/100.
Data updated Jul 11, 2026 · scored weekly · How we score niches
u joint market data
- Units sold / yr
- 10K–13K
- avg 100–250/product
- Revenue / yr
- $229K–$286K
- units × avg price
- Conversion rate
- 2.3%
- Avg BSR
- #81
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 47%
- Out of stock
- 0.0%
- Avg brand age
- 56 months
- Avg seller age
- 169 days
Competition & brand share
Clicks spread well past the top 5 (38% combined) — an open shelf where new products get seen.Brands
7 falling
Sellers
125
Top-5 brand share
99%
Top 20: 100%
Top-5 click share
38%
Top 20: 79%
Open market
1%
- Spicer56%
- MOOG30%
- Champion6%
- GMB6%
- ACDelco1%
- boen1%
- Open — no brand owns it (1 brand, 1%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -1.1% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.3×
Top u joint search terms
- u joint113K/yr
- universal joint55K/yr
- u joints42K/yr
- u joints rear drive shaft12K/yr
- universal joints11K/yr
- 1310 u joint10K/yr
- drive shaft u joint9K/yr
- spicer u joint10K/yr
- automotive replacement universal joints7K/yr
- u-joint9K/yr
Top u joint 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
Spicer 5-153X U-Joint Kit 1310 Series (OSR)
Spicer$18.714.7★1,533 rev
MOOG 235 Greaseable Super Strength Universal Joint for Chevrolet Silverado 1500
MOOG$17.694.5★764 rev
Spicer 15-153X U-Joint Kit 1310 Series (OSR)
Spicer$12.864.4★250 rev
Spicer 5-178X U-Joint Kit 1350 Series (OSR)
Spicer$23.504.4★688 rev
MOOG 354 Greaseable Premium Universal Joint for Ford F-150
Champion$14.014.5★823 rev
Newest
by launch date
ACDelco Gold 45U0123 (19473228) Drive Shaft Universal Joint Kit
ACDelco$28.6126 rev
Spicer 5-1350X U-Joint Kits - Pair of Two
Spicer$65.8461 rev
Spicer 15-153X U-Joint Kit 1310 Series (OSR)
Spicer$12.86250 rev
Spicer 5-1350X U-Joint Kit 1350/SPL30 Series (OSR)
Spicer$28.73572 rev
Spicer 5-1330X U-Joint Kit 1330/SPL25 Series (OSR)
Spicer$25.91501 rev
Trending
90-day click momentum
Spicer 5-3147X U-Joint Kit S44 Series (ISR)
Spicer$21.204.5★
MOOG 234 Non-Greaseable Super Strength Universal Joint for Chevrolet Silverado 1500
MOOG$17.744.3★
GMB 210-0153 Universal Joint
GMB$8.584.3★
Spicer 15-153X U-Joint Kit 1310 Series (OSR)
Spicer$12.864.4★
Spicer 5-178X U-Joint Kit 1350 Series (OSR)
Spicer$23.504.4★
What buyers say about u joint
What buyers praise and complain about, mined from review topics.What buyers love
“Fit great”
“The part seems well made, fit and finish are good”
“As advertised”
“Great deal”
“With a zerk you can grease I should be good for a long time”
“Works well”
“Very useful”
“Good durable parts”
“Heavy duty and well made”
“install isnt bad”
What buyers complain about
“they were just a little to wide to fit in between the yokes”
“Wrong description”
“Does not Fit i bought 3 non fit”
“Garbage”
“break when he tried to install them”
“and lo and behold, not even 4 oil changes in, I noticed that one of these is not getting grease purging out of all four caps”
“I got a used unit although I paid for a new one”
“will NOT work”
“Ordered two, one was missing a seal, the other showed up with the bearing cap already off and a little bit of rust inside that bearing cap”
“Nickel holding up a dollar”
Top return reasons
Common questions
- Is u joint profitable to sell on Amazon United States?
- The niche generates $177K/yr across 43 tracked products. 90-day search growth is -1.1%. Flapen's verdict: Skip it (42/100).
- How competitive is the u joint niche?
- 7 brands and 125 sellers compete. The top 5 products take 38% of clicks and top 5 brands hold 99% of demand.
- What do buyers complain about in u joint?
- Top complaints mined from reviews: Size-Overall, Advertised Vs Actual Product, Compatibility-Overall. The return rate is 7.2% — above our launch gate.
- When does demand for u joint peak?
- Demand is steady year-round — the busiest month runs 1.3× the quietest.
- What does it cost to enter the u joint niche?
- Listings span $8.58–$65.84; the average listing price is $22.85 (sweet spot $15–$100). The average incumbent carries 401 reviews — the moat a new listing must climb.