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 6% 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
Competition
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%
Open market
42%
- AIP Electronics18%
- GM GENUINE PARTS13%
- ACDelco11%
- Standard Motor Products6%
- MSD6%
- big-autoparts5%
Product shelf
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 72 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

HYNYHT Ignition Distributor Cap and Rotor Kit Set 30102-P54-006 Compatible with 1992-2000 Civic 1994-1997 Civic del Sol 1997-2001 CR-V 1992-2001 Integra
HYNYHT$16.5110 rev

QQWD Ignition Distributor Cap and Rotor Kit for Chevrolet GMC Cadillac Vortec V8 5.0L 5.7L 7.4L Automobile Distributor Cap with Brass Terminals Replaces DR474 DR331 1104079 93441558 1104051 1104058
QQWD$17.188 rev

A-Premium Ignition Distributor Cap Compatible with Dodge Ram 1500 2500 3500 Ram 1500 2500 3500 Van Durango Dakota B150 & Jeep Grand Cherokee Grand Wagoneer
A-Premium$30.096 rev
Trending
90-day click momentum
Ignition Distributor Cap and Rotor Kit D465 10452457 & 10452458 D328A Replacement Compatible with G M Chevrolet 4.3L 1996-2007 Chevy Astro Blazer Avalanche S10 GMC Jimmy Yukon Safari Sonoma Escalade
RELIATURE$18.490.0★

Walker Products 925-1019 Ignition Distributor Cap
Walker Products$14.640.0★

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$21.624.2★

Standard Motor Products JR190T Distributor Rotor
Standard Motor Products$9.454.6★

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★
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×
Reviews
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”