US Automotive Auto Parts - PPC Market Share Analysis August 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 40.5894717808
59.4105282192
40%

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 5%
Transactional 9%
Navigational 2%
Seasonal 0%
Local 1%
Problem Solving 7%

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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
autozone.com 33.02
advanceautoparts.com 24.23
napaonline.com 8.51
partsgeek.com 6.03
kbb.com 3
summitracing.com 2
harborfreight.com 1.65
carparts.com 1.61
oreillyauto.com 1.09
ford.com 0.63
others 18.23
  • autozone.com - 33.02%
  • advanceautoparts.com - 24.23%
  • napaonline.com - 8.51%
  • partsgeek.com - 6.03%
  • kbb.com - 3%
  • summitracing.com - 2%
  • harborfreight.com - 1.65%
  • carparts.com - 1.61%
  • oreillyauto.com - 1.09%
  • ford.com - 0.63%
  • others - 18.23%

Copyright © Adthena. All rights reserved.

AutoZone leads with 33.02% click share, followed by Advance Auto Parts at 24.23%. Others hold 18.23%, while Napa Online captures 8.51%.

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 autozone.com advanceautoparts.com napaonline.com partsgeek.com carparts.com oreillyauto.com harborfreight.com peddle.com bumper.com kbb.com
2026/08/01 11.05% 11.4% 5.02% 7.42% 3.11% 0.68% 2.33% 1.93% 1.85% 0.83%
2026/08/02 13.91% 9.85% 5.26% 8.31% 3.39% 0.88% 2.02% 2% 2.02% 1.15%
2026/08/03 15.37% 14.34% 2.55% 5.4% 3.32% 0.72% 1.85% 2.4% 1.96% 1.2%
2026/08/04 11.22% 9.87% 5.51% 5.52% 3.56% 1.83% 1.59% 1.85% 1.23% 1.07%
2026/08/05 15.61% 10.88% 6.49% 5.25% 2.58% 1.97% 1.87% 1.9% 1.54% 2.37%
2026/08/06 12.2% 12.84% 8.16% 6.57% 3.14% 2.94% 1.7% 2.53% 1.73% 2.03%
2026/08/07 14.91% 14.64% 4.18% 4.19% 2.84% 0.94% 1.94% 2.14% 1.41% 1.74%
2026/08/08 18.6% 11.98% 7.74% 5.7% 3.05% 0.76% 2.59% 1.69% 1% 2.27%
2026/08/09 21.3% 13.17% 6.91% 5.3% 3.27% 1.53% 2.33% 1.69% 0.44% 2.2%
2026/08/10 16.76% 10.77% 6.58% 3.58% 3.2% 1.04% 2.1% 1.42% 1.38% 2.22%
2026/08/11 16.8% 15.44% 1.14% 4.81% 3.17% 1.58% 1.75% 2.31% 0.84% 2.22%
2026/08/12 17.59% 15.95% 2.96% 3.88% 4.11% 1.68% 2.11% 1.96% 0.38% 2.53%
2026/08/13 15.02% 15.9% 7.02% 4.32% 2.57% 1.19% 2.1% 1.94% 0.73% 3.07%
2026/08/14 19.37% 15.55% 7.16% 3.29% 2.64% 1.59% 2.56% 1.7% 1.23% 2.3%
2026/08/15 20.23% 11.91% 6.88% 4.46% 2.91% 1.21% 1.99% 1.61% 1.27% 2.88%
2026/08/16 15.7% 12.91% 6.23% 4.75% 3.39% 1.09% 1.9% 1.44% 1.38% 3.02%
2026/08/17 20.04% 13.75% 5.28% 5.38% 3.83% 1.43% 2.01% 1.75% 2.2% 2.21%
2026/08/18 17.59% 12.28% 2.42% 6.89% 3.75% 1.53% 2.24% 1.89% 1.86% 2.36%
2026/08/19 16.38% 15.81% 3.87% 5.66% 3.24% 1.63% 2.04% 2.05% 1% 2.29%
2026/08/20 20.4% 14.92% 7.33% 3.57% 2.92% 1.4% 1.6% 1.92% 0.73% 1.99%
2026/08/21 15.68% 13.89% 6.59% 3.43% 2.4% 1.27% 1.83% 2.12% 0.65% 2.1%
2026/08/22 15.14% 14.48% 4.96% 4.47% 2.67% 2.31% 2.16% 2.86% 0.96% 2.7%
2026/08/23 20.4% 13.82% 5.9% 4.38% 3.28% 1.14% 2.1% 2.4% 1.54% 2.75%
2026/08/24 21.42% 14.15% 4.11% 4.28% 2.62% 1.56% 1.97% 1.25% 1.01% 2.17%
2026/08/25 17.83% 12.46% 5.51% 3.99% 2.53% 1.04% 2.54% 2.23% 1.23% 2.72%
2026/08/26 19.13% 13.45% 5.82% 3.51% 2.08% 2.31% 1.88% 1.98% 0.68% 2.12%
2026/08/27 17.51% 10.43% 7.51% 4.06% 2.68% 1.44% 1.87% 2.02% 0.42% 2.31%
2026/08/28 16.06% 14.72% 5.8% 4.81% 2.43% 1.83% 1.62% 1.54% 0.9% 2.77%
2026/08/29 16.4% 13.13% 5.55% 3.61% 3.26% 2.03% 1.51% 1.82% 1.49% 2.22%
2026/08/30 16.12% 14.52% 7.61% 4.28% 2.96% 1.25% 1.16% 1.89% 1.08% 1.75%
2026/08/31 16.27% 15.27% 6.23% 4.84% 2.91% 2.64% 1.47% 1.41% 1.39% 1.34%
  • autozone.com
  • advanceautoparts.com
  • napaonline.com
  • partsgeek.com
  • carparts.com
  • oreillyauto.com
  • harborfreight.com
  • peddle.com
  • bumper.com
  • kbb.com

Copyright © Adthena. All rights reserved.

AutoZone’s PPC share surged mid-August, peaking at 21.42%. Advance Auto Parts fluctuated, ending at 15.27%. NapaOnline saw a steady rise, closing at 6.23%. PartsGeek’s share dipped, finishing at 4.84%.

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
2026/08/01 1626
2026/08/02 1604
2026/08/03 1488
2026/08/04 1727
2026/08/05 1467
2026/08/06 1304
2026/08/07 1171
2026/08/08 1000
2026/08/09 1129
2026/08/10 1289
2026/08/11 1283
2026/08/12 1203
2026/08/13 1257
2026/08/14 1334
2026/08/15 1299
2026/08/16 1208
2026/08/17 1161
2026/08/18 1133
2026/08/19 1062
2026/08/20 1247
2026/08/21 1238
2026/08/22 1288
2026/08/23 1210
2026/08/24 1246
2026/08/25 1308
2026/08/26 1303
2026/08/27 1370
2026/08/28 1421
2026/08/29 1324
2026/08/30 1348
2026/08/31 1287

Copyright © Adthena. All rights reserved.

August began with 1,626 advertisers, fluctuating throughout the month, peaking at 1,727 on August 4th. The month concluded with 1,287 advertisers, reflecting a dynamic landscape.

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
autozone.com 1.74%
advanceautoparts.com 0.43%
oreillyauto.com 0.23%
campingworld.com 0.17%
methodracewheels.com 0.12%
roughcountry.com -0.12%
carparts.com -0.21%
harborfreight.com -0.24%
napaonline.com -0.4%
partsgeek.com -0.63%

Copyright © Adthena. All rights reserved.

AutoZone surged with a 1.74 increase, while PartsGeek faced a -0.63 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 autozone.com advanceautoparts.com napaonline.com oreillyauto.com partsgeek.com harborfreight.com carparts.com summitracing.com etrailer.com kbb.com
2026/08/01 15.65% 16.1% 5.6% 1.51% 7.72% 4.7% 1.86% 1.88% 1.78% 0.63%
2026/08/02 19.08% 14.85% 5.3% 1.74% 8.29% 4.36% 2.02% 1.53% 1.81% 0.86%
2026/08/03 21.5% 20.02% 3.59% 1.17% 5.45% 3.85% 2.06% 1.04% 1.63% 0.91%
2026/08/04 16.1% 14.75% 5.89% 2.51% 5.71% 3.59% 2.5% 1.79% 1.92% 0.81%
2026/08/05 21.68% 15.02% 7.03% 2.63% 5.08% 4.23% 1.84% 1.44% 1.5% 1.68%
2026/08/06 16.84% 16.27% 9.3% 4.21% 6.87% 3.78% 2.04% 1.45% 1.44% 1.38%
2026/08/07 20.41% 20.82% 5.7% 1.7% 4.11% 3.95% 1.68% 1.66% 1.53% 1.18%
2026/08/08 23.8% 19.74% 7.34% 1.41% 4.96% 5.49% 1.41% 1.41% 1.06% 1.56%
2026/08/09 26.71% 16.35% 7.22% 2.65% 4.63% 4.94% 1.98% 1.71% 0.79% 1.31%
2026/08/10 20.44% 14.95% 7.78% 2.49% 3.41% 4.32% 2.14% 1.22% 1.38% 1.53%
2026/08/11 22.51% 18.57% 2.14% 2.81% 4.72% 4.07% 2.13% 1.89% 1.18% 1.53%
2026/08/12 24.12% 19.11% 3.76% 2.41% 3.83% 4.99% 2.21% 1.56% 1.23% 1.63%
2026/08/13 19.15% 19.8% 7.53% 2.32% 3.88% 4.54% 1.56% 1.84% 1.2% 2.14%
2026/08/14 23.47% 19.61% 7.03% 2.33% 3.2% 5.7% 1.44% 1.41% 1.25% 1.62%
2026/08/15 26.16% 16.04% 6.47% 1.71% 4.37% 4.87% 1.87% 1.43% 1.14% 2%
2026/08/16 21.75% 17.8% 5.05% 1.87% 5.38% 4.4% 2.08% 1.4% 1.12% 2.18%
2026/08/17 25.49% 17.53% 7.05% 3.07% 4.81% 4.14% 1.87% 1.28% 1.16% 1.49%
2026/08/18 23.14% 16.38% 3.34% 2.28% 6.12% 4.86% 2.02% 1.68% 1.36% 1.68%
2026/08/19 22.06% 18.91% 4.33% 3.12% 5.12% 4.77% 2% 2.07% 1.37% 1.59%
2026/08/20 24.89% 19.25% 7.46% 3.2% 3.46% 3.57% 1.49% 1.35% 1.25% 1.37%
2026/08/21 20.69% 18.61% 7.59% 1.94% 3.27% 3.85% 1.48% 1.56% 1.41% 1.62%
2026/08/22 20.02% 18.04% 5.92% 4.18% 4.24% 4.56% 1.41% 1.61% 1.15% 1.9%
2026/08/23 26.52% 17.82% 6.06% 1.67% 4.29% 4.28% 1.65% 1.36% 1.15% 2.01%
2026/08/24 27.27% 17.68% 5.23% 2.57% 4.26% 4.09% 1.46% 1.73% 1.13% 1.53%
2026/08/25 24.16% 16.77% 5.81% 1.8% 3.58% 5.19% 1.48% 1.65% 1.3% 2%
2026/08/26 25.77% 16.66% 6.43% 4.49% 3.46% 3.97% 1.32% 1.46% 0.97% 1.42%
2026/08/27 23.79% 14.71% 7.97% 2.45% 3.63% 4.18% 1.55% 1.55% 1.35% 1.65%
2026/08/28 20.97% 18.34% 7.17% 3.55% 4.75% 3.31% 1.41% 1.16% 1.23% 1.92%
2026/08/29 23.4% 18.04% 6.75% 4.54% 3.27% 3.46% 1.86% 1.47% 1.12% 1.53%
2026/08/30 21.79% 19.06% 8.12% 2.36% 4.34% 2.57% 1.57% 1.53% 1.15% 1.22%
2026/08/31 21.79% 19.5% 6.99% 5.22% 4.92% 3.2% 2.04% 1.48% 1.21% 0.89%
  • autozone.com
  • advanceautoparts.com
  • napaonline.com
  • oreillyauto.com
  • partsgeek.com
  • harborfreight.com
  • carparts.com
  • summitracing.com
  • etrailer.com
  • kbb.com

Copyright © Adthena. All rights reserved.

AutoZone’s impression share fluctuated, peaking at 27.27% on August 24. Advance Auto Parts saw a steady rise, ending at 19.5%. NapaOnline’s share varied, closing at 6.99%. O’ReillyAuto’s share increased, finishing at 5.22%.

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. Replace Worn-Out Parts Before They Cause Damage at Advance Auto Parts®.

  2. 2
    AutoZone Official Site https://www.autozone.com

    Shop In-Store or Online Now — AutoZone has everything you need to get the job done. Visit your local store or shop online for the...

  3. 3
    Official Kelley Blue Book Site https://www.kbb.com › shop › kbb

    Find Your Car's Book Value — Kelley Blue Book® Empowering You in the Car Market. From Values To Service & Repair Guide. Kelley Blue Book®: Making Car Buying Easier Since 1918 Let Us Help You Shop Like a Pro.

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

    Buy Online For In-Store Or Curbside Pickup, Ship To Home, Or Reserve Online & Pay In-Store

  5. 5
    O'Reilly Auto Parts https://www.oreillyauto.com › battery_testing

    Convenient Store Locations — We'll test your car's battery for free at O'Reilly Auto Parts. O'Reilly Auto Parts has free car battery testing. Types: Motorcycle Batteries, Car Batteries.

Copyright © Adthena. All rights reserved.

Advance Auto Parts emphasizes convenience with online shopping and in-store pickup, while AutoZone highlights comprehensive solutions for DIY enthusiasts. Kelley Blue Book empowers buyers with trusted car valuations. NAPA Auto Parts offers flexible purchasing options, and O’Reilly Auto Parts provides free battery testing services.

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