cap and rotor
Worth a lookShows a sweet-spot price point ($23.90 avg), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Avg price
Incredible$23.90avg listing price — sweet spot $15–$100
Competition
Great23%top-5 click share — an open shelf
Review moat
Great283.65avg incumbent reviews — the moat a new listing must climb
Price range
Great$7.64–$69.46cheapest to priciest tracked listing — scored on the share inside $15–$100
Brand share
Great53%top-5 brand share — no brand owns this niche
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Conversion
Good4.3%search→purchase rate — share of searches ending in a sale
Returns
Okay3.9%return rate — above 5% kills the launch gate
Growth
Bad-3.6%90-day search growth — must beat 0% to launch
Market size
Bad$51K$51K/yr · 50K searches
According to Flapen's Amazon United States niche tracking, cap and rotor is a $51K/yr Amazon United States market (50K searches/yr). The top 5 brands hold 53% of demand. Verdict: Worth a look — 56/100.
Data updated Jul 11, 2026 · scored weekly · How we score niches
cap and rotor market data
- Units sold / yr
- 2K–3K
- avg 0–100/product
- Revenue / yr
- $48K–$60K
- units × avg price
- Conversion rate
- 4.3%
- Avg BSR
- #60
- Page quality
- 0%
- Prime
- 90%
- Sponsored
- 42%
- Out of stock
- 1.2%
- Avg brand age
- 98 months
- Avg seller age
- 175 days
Competition & brand share
Clicks spread well past the top 5 (23% combined) — an open shelf where new products get seen.Brands
29 rising
Sellers
134
Top-5 brand share
53%
Top 20: 95%
Top-5 click share
23%
Top 20: 59%
Open market
42%
- AIP Electronics18%
- GM GENUINE PARTS13%
- ACDelco11%
- Standard Motor Products6%
- MSD6%
- big-autoparts5%
Demand & seasonality
Weekly Amazon search volume, last 59 weeks — -3.6% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.4×
Top cap and rotor search terms
- cap and rotor23K/yr
- distributor rotor14K/yr
- cap and rotor kit12K/yr
- ignition distributor cap1K/yr
Top cap and rotor 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
GM Genuine Parts D447 (10496798) Distributor Rotor
GM GENUINE PARTS$8.744.7★1,050 rev
DRAGON FIRE PERFORMANCE Heavy Duty Distributor Cap and Rotor Set Compatible Replacement With 1992-2003 Dodge B1500 B2500 Dakota Durango Ram 1500 2500 3500 5.2L 5.9L V8 4740339AB Oem Fit CAP1049-DF
AIP Electronics$24.844.5★349 rev
DRAGON FIRE PERFORMANCE Heavy Duty Distributor Cap and Rotor Set Compatible Replacement With 1996-2002 Chevrolet GMC Express Suburban Savana Yukon 5.0L 5.7L 350 305 V8 Vortec Oem Fit CAP1010-DF
AIP Electronics$25.084.5★333 rev
GM Genuine Parts D303A (19166099) Ignition Distributor Cap
GM GENUINE PARTS$28.154.7★1,034 rev
ACDelco Gold D465 (10452457) Ignition Distributor Rotor
ACDelco$14.774.8★1,912 rev
Newest
by launch date
ESWW Ignition Distributor Cap and Rotor Kit Set for Honda Distributor Cap Replacement 30102-P54-006 30103-P08-003 for Honda Accord 92-01 Integra 1992-2000 Civic 1994-1997 Civic del Sol 1997-2001 CR-V
ESWW$16.308 rev
ENGINEMAN HEI Distributor Cap and Rotor Kit Replacement For K549 SBC 283 305 307 327 350 400 BBC 454 396 427 Black Male Large Distributor Cap Rotor Kit
ENGINEMAN$21.62103 rev
HEI Distributor Cap and Rotor Replacement For K549 SBC 283 305 307 327 350 400 BBC 454 396 427 Black Male Large Distributor Cap Rotor Kit
JDMSPEED$19.80109 rev
HYXUAN Ignition Distributor Cap and Rotor Kit Set 30102-P54-006 30103-P08-003 Compatible with 1992-2001 Integra 1998-2002 Accord 1992-2000 Civic 1994-1997 Civic del Sol 1997-2001 CR-V
HYXUAN$16.8066 rev
HEI Distributor Cap and Rotor Replacement For K549 SBC 283 305 307 327 350 400 BBC 454 396 427 Red Male Large Distributor Cap Rotor Kit
JDMSPEED$19.67109 rev
Trending
90-day click momentumENGINEMAN HEI Distributor Cap and Rotor Kit Replacement For K549 SBC 283 305 307 327 350 400 BBC 454 396 427 Black Male Large Distributor Cap Rotor Kit
ENGINEMAN$21.624.2★
ESWW Ignition Distributor Cap and Rotor Kit Set for Honda Distributor Cap Replacement 30102-P54-006 30103-P08-003 for Honda Accord 92-01 Integra 1992-2000 Civic 1994-1997 Civic del Sol 1997-2001 CR-V
ESWW$16.302.6★
GM Genuine Parts D328A (10452458) Distributor Cap
GM GENUINE PARTS$38.594.7★
HEI Distributor Cap and Rotor Replacement For K549 SBC 283 305 307 327 350 400 BBC 454 396 427 Black Male Large Distributor Cap Rotor Kit
JDMSPEED$19.804.2★
RED DRAGON FIRE PERFORMANCE Heavy Duty Distributor Cap and Rotor Set Compatible/Replacement for 1978-1996 Ford F-150 EFI 5.0L 5.8L 6.6L 6.9L 7.5L V8 Replaces FD168 FD166 FD307 Oem Fit Kit-1550
AIP Electronics$29.664.4★
What buyers say about cap and rotor
What buyers praise and complain about, mined from review topics.What buyers love
“Excellent fit”
“Very good product, works well, lasts a long time”
“Good price”
“The engine ran perfect”
“Just as described”
“Installed and works as expected”
“very close works great”
“Color”
“My engine runs much better than with the worn out old pieces”
“Really sturdy”
What buyers complain about
“Bad quality”
“Rotor did not fit”
“Made be break down 5 k miles later”
“Broke as soon as I was tighten screw”
“Deceptive”
“Did not come in blue”
“allowing aluminum to corrode”
“Not the cheapest”
“The plug for the cap wouldn't fit”
“Did not fit”
Top return reasons
Common questions
- Is cap and rotor profitable to sell on Amazon United States?
- The niche generates $51K/yr across 72 tracked products. 1 of 3 products launched in the last 360 days are still selling. 90-day search growth is -3.6%. Flapen's verdict: Worth a look (56/100).
- How competitive is the cap and rotor niche?
- 29 brands and 134 sellers compete. The top 5 products take 23% of clicks and top 5 brands hold 53% of demand.
- What do buyers complain about in cap and rotor?
- Top complaints mined from reviews: Quality-Overall, Size-Overall, Durability. The return rate is 3.9%.
- When does demand for cap and rotor peak?
- Demand is steady year-round — the busiest month runs 1.4× the quietest.
- What does it cost to enter the cap and rotor niche?
- Listings span $7.64–$69.46; the average listing price is $23.90 (sweet spot $15–$100). The average incumbent carries 284 reviews — the moat a new listing must climb.