US Automotive Auto Parts - PPC Market Share Analysis September 2026

Leveraging Adthena’s Whole Market View, this analysis explores recent trends in Google Ads for the US Auto Parts category from the last month. Our Data Analyst, Ask Arlo provides commentary on key findings.

Auto Parts – US

Google AI Overview visibility for Automotive Auto Parts US

See how often AIOs appear and how search intent is distributed across buying signals.

AIO Frequency

How often a Google AI overview appears on search terms relevant to this category.

Frequency Percentage
Frequency 55.1748883424
44.8251116576
55%

Complex Query Frequency

A complex query is a longer, more detailed search that often contains multiple keywords, specific conditions, or multi-part questions.

Frequency Percentage
Frequency 24
76
24%

Search Intent Distribution

Breakdown of search queries by their underlying goal.

Intent Distribution
Investigational 4%
Transactional 11%
Navigational 3%
Seasonal 1%
Local 2%
Problem Solving 5%

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Market Exposure

Share of Clicks for top 10 US Automotive Auto Parts brands

Here are the Top 10 competitors in the industry by Share of Clicks for the last month.

Share of Clicks - Last month
Share of Clicks - Last month
Domain Share of clicks
advanceautoparts.com 28.86
autozone.com 25.59
napaonline.com 9.86
partsgeek.com 5.09
carparts.com 2.2
summitracing.com 1.76
kbb.com 1.41
harborfreight.com 1.35
oreillyauto.com 0.95
carfax.com 0.64
others 22.29
  • advanceautoparts.com - 28.86%
  • autozone.com - 25.59%
  • napaonline.com - 9.86%
  • partsgeek.com - 5.09%
  • carparts.com - 2.2%
  • summitracing.com - 1.76%
  • kbb.com - 1.41%
  • harborfreight.com - 1.35%
  • oreillyauto.com - 0.95%
  • carfax.com - 0.64%
  • others - 22.29%

Copyright © Adthena. All rights reserved.

Advance Auto Parts leads with 28.86% click share, followed by AutoZone at 25.59%. Others collectively hold 22.29%, showcasing diverse competition.

Market Exposure

Share of Spend for the top 10 US Automotive Auto Parts brands

Curious about your market position? Here you can see the Top 10 competitors in the industry by Share of Spend for the last month. 

Share of Spend - Last Month
Share of Spend - Last Month
Date advanceautoparts.com autozone.com partsgeek.com carparts.com bumper.com goodcar.com harborfreight.com ford.com carfax.com napaonline.com
2026/09/01 18.32% 12.46% 4.35% 3.59% 1.48% 1.55% 1.24% 2.48% 0.42% 7.94%
2026/09/02 12.75% 10.92% 4.54% 2.37% 1.28% 2.15% 1.41% 1.9% 0.48% 7.29%
2026/09/03 13.21% 9.11% 5.27% 2.75% 1.19% 2.44% 1.21% 1.69% 0.99% 9.51%
2026/09/04 12.33% 12.06% 4.7% 2.44% 1.07% 2.22% 1.2% 1.59% 1.17% 8.49%
2026/09/05 13.91% 9.87% 4.55% 2.69% 1.07% 2.51% 0.96% 1.7% 1.21% 7.79%
2026/09/06 11.44% 8.55% 5.3% 3.35% 1.38% 2.57% 0.88% 1.25% 0.78% 11.45%
2026/09/07 11.7% 8.12% 4.85% 3.05% 0.85% 2.55% 0.83% 1.66% 1.09% 13.11%
2026/09/08 11.69% 8.27% 5.37% 3.59% 1.2% 2.32% 0.89% 1.57% 1.14% 13.13%
2026/09/09 14.84% 6.42% 5.11% 3.7% 1.02% 2.75% 1.03% 2.36% 1.27% 8.12%
2026/09/10 11.59% 7.25% 4.42% 3.18% 1.38% 1.98% 1.19% 1.33% 1.06% 13.05%
2026/09/11 13.16% 9.02% 4.85% 2.43% 1.18% 1.67% 1.43% 1.41% 0.74% 10.34%
2026/09/12 12.08% 11.4% 5.32% 2.83% 1.46% 1.75% 1.65% 1.18% 0.78% 10.67%
2026/09/13 11.46% 12.6% 4.97% 2.41% 1.16% 1.9% 1.77% 0.97% 0.59% 8.9%
2026/09/14 11.41% 10.75% 4.05% 2.55% 1.19% 1.69% 2.19% 0.89% 0.67% 8.38%
2026/09/15 14.73% 10.78% 5.03% 2.66% 0.97% 2.01% 1.42% 1.52% 1.19% 9.77%
2026/09/16 15.6% 11.83% 4.64% 3.06% 1.12% 1.47% 1.47% 1.63% 0.95% 8.41%
2026/09/17 13.11% 14.44% 3.86% 2.48% 0.77% 1.4% 1.77% 1.35% 1.27% 8.38%
2026/09/18 15.41% 15.17% 3.87% 2.86% 0.95% 1.27% 1.8% 1.71% 1.28% 6.04%
2026/09/19 16.47% 9.34% 4.82% 3.44% 1.08% 1.87% 1.78% 1.58% 1.12% 7.06%
2026/09/20 16.99% 12.48% 4.38% 3.23% 1.07% 2.07% 1.79% 1.34% 1.62% 4.76%
2026/09/21 17.37% 10.17% 5% 3.94% 0.96% 1.93% 1.43% 2.17% 1.8% 4.81%
2026/09/22 19.24% 9.52% 4.26% 3.18% 1.53% 2.23% 1.5% 1.82% 2% 5.11%
2026/09/23 18.48% 8.35% 5.1% 4.64% 1.78% 2.03% 1.21% 2.67% 1.32% 5.27%
2026/09/24 18.16% 12.37% 5.2% 3.31% 1.92% 1.85% 1.56% 1.3% 2.3% 4.53%
2026/09/25 19.59% 12.23% 5.44% 3.46% 1.55% 2% 1.37% 1.58% 2.1% 2.07%
2026/09/26 20.83% 8.31% 5.09% 3.77% 2.17% 1.5% 1.51% 2.13% 2.04% 3.54%
2026/09/27 14.61% 13.68% 5.45% 3.8% 2.51% 2.92% 1.39% 1.89% 2.58% 1.89%
2026/09/28 17.59% 11.58% 5.31% 3.87% 2.31% 1.83% 1.26% 1.48% 2.11% 1.41%
2026/09/29 16.77% 12.42% 6.07% 3.31% 2.1% 1.57% 1.5% 1.78% 2.05% 2.48%
2026/09/30 18.18% 10.4% 6.15% 3.01% 2.49% 1.55% 1.53% 1.28% 1.22% 1.15%
  • advanceautoparts.com
  • autozone.com
  • partsgeek.com
  • carparts.com
  • bumper.com
  • goodcar.com
  • harborfreight.com
  • ford.com
  • carfax.com
  • napaonline.com

Copyright © Adthena. All rights reserved.

Advanceautoparts.com led September with a steady rise, peaking at 20.83% on the 26th. Autozone.com fluctuated, ending at 10.4%. Partsgeek.com showed consistent growth, closing at 6.15%.

Market Exposure

Competitor Count for US Automotive Auto Parts

Ever wondered how many competitors you’re up against in your industry? Well look no further, here we can see the number of advertisers bidding over the last month. 

Competitor Count - Last month
Competitor Count - Last month
Date Competitor Count
2026/09/01 1245
2026/09/02 1653
2026/09/03 1728
2026/09/04 1796
2026/09/05 1725
2026/09/06 1766
2026/09/07 1746
2026/09/08 1710
2026/09/09 1712
2026/09/10 1805
2026/09/11 1779
2026/09/12 1804
2026/09/13 1887
2026/09/14 1825
2026/09/15 1953
2026/09/16 1997
2026/09/17 2097
2026/09/18 1996
2026/09/19 1798
2026/09/20 1804
2026/09/21 1769
2026/09/22 1708
2026/09/23 1582
2026/09/24 1627
2026/09/25 1572
2026/09/26 1510
2026/09/27 1489
2026/09/28 1550
2026/09/29 1570
2026/09/30 1564

Copyright © Adthena. All rights reserved.

September saw a dynamic shift in advertisers, starting at 1,245 and peaking at 2,097 mid-month. The month concluded with a decline, settling at 1,564.

Campaign Efficiency

Market Loss & Market Gains for US Automotive Auto Parts

Here we’re looking at the Top 10 biggest industry movers by market share gains and losses for the last 30 days.

Market Loss & Market Gains - Last month
Market Loss & Market Gains - Last month
Name Market Trend
advanceautoparts.com 4.11%
autozone.com 3.65%
summitracing.com 0.49%
carparts.com 0.47%
carfax.com 0.39%
methodracewheels.com -0.14%
a-premium.com -0.15%
batteriesplus.com -0.18%
kbb.com -0.3%
napaonline.com -7.86%

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Advanceautoparts.com surged by 4.11%, while napaonline.com dropped by 7.86%. Autozone.com gained 3.65%, contrasting kbb.com’s 0.3% decline.

Campaign Efficiency

US Automotive Auto Parts Share of Impressions

Take a look at the Top 10 competitors in the industry by Share of Impressions over the last month.

Date advanceautoparts.com autozone.com partsgeek.com harborfreight.com carparts.com summitracing.com etrailer.com goodcar.com napaonline.com oreillyauto.com
2026/09/01 22.21% 18.8% 4.68% 3.32% 2.05% 1.35% 1.16% 0.99% 6.87% 4.36%
2026/09/02 17.41% 17.22% 5.14% 3.66% 1.51% 1.47% 1.44% 1.26% 6.32% 1.35%
2026/09/03 18.1% 14.97% 6.59% 3.26% 1.72% 1.15% 1.59% 1.54% 6.95% 1.04%
2026/09/04 16.39% 18.3% 5.97% 2.89% 1.76% 1.07% 1.39% 1.23% 7.2% 2.61%
2026/09/05 19.57% 15.56% 5.84% 2.39% 2.14% 1.2% 1.41% 1.5% 7.27% 1.22%
2026/09/06 16.98% 13.71% 6.58% 2.22% 2.31% 0.98% 1.41% 1.52% 9.7% 1.21%
2026/09/07 17% 13.34% 7.16% 2.16% 2.66% 0.74% 1.15% 1.53% 11.01% 0.69%
2026/09/08 17.33% 13.67% 7.59% 2.22% 2.38% 0.91% 1.26% 1.46% 10.93% 0.77%
2026/09/09 21.01% 10.55% 6.46% 2.48% 2.72% 1.12% 1.22% 1.54% 9.07% 0.76%
2026/09/10 17.78% 10.74% 5.85% 2.7% 2.22% 1.31% 1.21% 1.24% 10.57% 1.43%
2026/09/11 18.47% 12.68% 6.46% 2.84% 1.64% 1.31% 1.3% 1.07% 8.84% 1.66%
2026/09/12 16.73% 16.57% 6.68% 3.23% 1.71% 1.24% 1.16% 1.13% 8.45% 2.03%
2026/09/13 15.25% 18.98% 5.54% 3.6% 1.4% 1.36% 1.33% 1.14% 6.72% 3.12%
2026/09/14 15.43% 16.59% 4.49% 4.29% 1.45% 1.77% 1.33% 0.92% 6.75% 3.87%
2026/09/15 16.26% 17% 6.69% 3.07% 1.8% 1.19% 1.07% 1.27% 7.38% 4.43%
2026/09/16 18.2% 17.37% 5.22% 3.25% 2.2% 1.02% 1.11% 0.96% 6.65% 3.22%
2026/09/17 15.68% 20.67% 4.49% 3.66% 1.67% 1.5% 1.12% 1% 6.35% 1.7%
2026/09/18 17.63% 21.68% 5.36% 3.79% 1.79% 1.07% 1% 0.78% 4.33% 3.7%
2026/09/19 17.96% 14.18% 6.88% 4.04% 2.27% 1.24% 0.95% 1.29% 5.4% 4.79%
2026/09/20 18.99% 19.57% 5.45% 3.76% 2.47% 1.32% 1.06% 1.46% 2.95% 1.19%
2026/09/21 21.04% 16.13% 6.36% 3.19% 2.5% 1.44% 0.91% 1.18% 3.49% 2.73%
2026/09/22 21.97% 14.99% 5.39% 3.34% 2.14% 1.11% 0.89% 1.45% 3.91% 1.07%
2026/09/23 23.29% 14.55% 6.18% 2.92% 2.94% 1.45% 1.05% 1.26% 3.29% 0.67%
2026/09/24 19.5% 18.36% 6.13% 3.79% 2.48% 1.27% 1.09% 1.3% 3.06% 1.33%
2026/09/25 21.55% 17.9% 6.52% 2.9% 2.19% 1.59% 1.05% 1.22% 1.62% 2.35%
2026/09/26 22.47% 13.29% 6.28% 3.33% 2.59% 1.82% 1.14% 0.98% 2.84% 2.1%
2026/09/27 17.78% 20.47% 6.56% 3.04% 2.29% 1.65% 1.15% 1.73% 1.62% 1.97%
2026/09/28 19.63% 18.04% 5.76% 2.95% 2.4% 1.63% 1.22% 1.15% 1.17% 1.34%
2026/09/29 18.2% 18.74% 7.06% 3.64% 2.09% 1.55% 1.09% 0.92% 1.88% 1.69%
2026/09/30 18.95% 15.96% 7.23% 3.84% 2.23% 1.3% 1.14% 1.05% 0.92% 0.81%
  • advanceautoparts.com
  • autozone.com
  • partsgeek.com
  • harborfreight.com
  • carparts.com
  • summitracing.com
  • etrailer.com
  • goodcar.com
  • napaonline.com
  • oreillyauto.com

Copyright © Adthena. All rights reserved.

Advance Auto Parts led September with fluctuating impressions, peaking at 23.29% on the 23rd. AutoZone saw a mid-month surge, while PartsGeek steadily climbed. NapaOnline’s early dominance waned, finishing at 0.92%.

Campaign Efficiency

Google Text Ad Copy Insights & Creative Trends for US Automotive Auto Parts

Ever wondered how your rivals’ ads are doing? Here we can see the top-performing ads in the industry over the last month.

Google Text Ad Copy Insights & Creative Trends for US Automotive Auto Parts - Last month
  1. 1
    Advance Auto Official Site https://shop.advanceautoparts.com › auto-parts

    Shop Online & Pickup In Store — Shop Our Wide Selection of High-Quality Parts Made For Your Vehicle.

  2. 2
    AutoZone Official Site - Shop In-Store or Online Now https://www.autozone.com

    Visit your local store or shop online for the quality parts & accessories you need.

  3. 3
    Auto Parts by CarParts.com - Quality Parts, Priced Right https://www.carparts.com

    Over 1 million auto parts available at the lowest prices possible. From headlights, to mirrors, to bumpers - CarParts.com has all of the replacement car parts you need.

  4. 4
    NAPA Auto Parts® Official Site https://www.napaonline.com

    Shop NAPA Auto Parts® Online — Shop for Batteries At NAPA Auto Parts® Online Today & Pick Up At Your Local Store! Find The Exact Battery You Need For Your Make & Model And Order Online For In-Store Pickup. Reserve Parts Online.

  5. 5
    Discount Car Parts | Up to 80% Off Retail Prices https://www.partsgeek.com

    Buy Car Parts Online. Shop Today! Guaranteed Low Prices on All Car Parts.

Copyright © Adthena. All rights reserved.

Advance Auto Parts emphasizes convenience with online shopping and in-store pickup. AutoZone highlights accessibility, offering both in-store and online options. CarParts.com focuses on affordability with over a million parts at low prices. NAPA Auto Parts promotes specific product availability and in-store pickup. PartsGeek attracts with significant discounts, promising up to 80% off retail prices.

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