Trends · data through September 2026

Auto Parts Stores in Riverside-San Bernardino-Ontario, CA

Iceflower tracks 348 stores from 81 auto parts store chains in Riverside-San Bernardino-Ontario, CA. Discount Tire Centers grew fastest over the last year, ahead of Parts Authority and O'Reilly Auto Parts.

Rankings come from real card and bank transactions across a panel of 130M+ US and EU consumers. We publish relative growth and rankings, never revenue figures. About the data

Tracked chains
81
Tracked stores
348
Consumer panel
130M+

Growth ranking

Fastest-growing tracked auto parts store chains

Ranked by year-over-year growth of share of tracked local spend. Arrows show movement in the rankings since last year. Each dot in the chart is one tracked chain: bigger market position to the right, faster growth higher up, more tracked stores in a bigger dot. Colors match the store map below. Discount Tire Centers and Parts Authority sit in the high-growth half.

# Chain YoY growth
RankChainRank movementYoY growth
1 Discount Tire Centers - +17.9%
2 Parts Authority ▲1 +6.1%
3 O'Reilly Auto Parts - +1.1%
4 AutoZone - -0.5%
5 NAPA Auto Parts - -9.1%
6 FleetPride ▲2 -20.8%
7 Rent-A-Wheel / Rent-A-Tire - -45.2%
8 Advance Auto Parts ▼3 -96.6%
9 Carquest Auto Parts - -100.0%
  • AutoZone
  • O'Reilly Auto Parts
  • NAPA Auto Parts
  • Redhawk Auto Service
  • Hello Subaru of Temecula
  • Discount Tire Centers
  • Valley Hi Kia
  • Other tracked chains

Store footprint

Store map

348 tracked store locations in Riverside-San Bernardino-Ontario, CA. The 7 largest tracked chains are highlighted. The top 5 chains by store count run 252 of the 348 stores (72%); 68 of the 81 tracked chains have a single store here. 11% of the tracked gas & auto stores here are auto parts stores, against 9% across California.

  • AutoZone (116)
  • O'Reilly Auto Parts (77)
  • NAPA Auto Parts (32)
  • Redhawk Auto Service (1)
  • Hello Subaru of Temecula (1)
  • Discount Tire Centers (7)
  • Valley Hi Kia (1)
  • Other tracked chains

Top tracked chains by store count

  • 1 AutoZone 116
  • 2 O'Reilly Auto Parts 77
  • 3 NAPA Auto Parts 32
  • 4 Advance Auto Parts 16
  • 5 Parts Authority 11
  • 6 Discount Tire Centers 7
  • 7 Rent-A-Wheel / Rent-A-Tire 4
  • 8 FleetPride 4
  • 9 Advanced Car Stereo 3
  • 10 Carquest Auto Parts 3
  • 11 Undercar Plus 3
  • 12 4 Wheel Parts 2
  • 13 Rancho Foreign Car Parts 2
  • 14 Oasis Truck Parts 1
  • 15 Cabrera Auto Paint Supplies 1
  • 16 Patron Automotive 1
  • 17 Eagle Auto Parts 1
  • 18 ARMEX 1
  • 19 Pull N Save 1
  • 20 1 Stop Auto Body & Detail Supplies 1
  • 21 California Batteries Inc. 1
  • 22 Yotamasters 1
  • 23 Up & Running Diesel 1
  • 24 Cruz Truck Supplies 1
  • 25 Perez Tires 1
  • 26 Brother's Auto Center 1
  • 27 Autocross Performance & Muffler 1
  • 28 World of Colors 1
  • 29 Elite Automotive Products 1
  • 30 Advance Auto Glass 1
  • 31 Jaguar tint 1
  • 32 R&B Service Center 1
  • 33 Precision Automotive Parts 1
  • 34 KSH Performance Parts 1
  • 35 Auto Value/bumper To Bumper Auto Parts 1
  • 36 Desert LINE-X 1
  • 37 California Batteries 1
  • 38 Traction Heavy Duty 1
  • 39 Mayen Truck Accessories 1
  • 40 CT Sales Discount Auto Parts 1
  • 41 Fleet Services Inc 1
  • 42 Inland Alternators 1
  • 43 Champs Shine & Brite 1
  • 44 G & J Aircraft 1
  • 45 Riverside Speedy Tires 1
  • 46 Ty Well Auto Parts 1
  • 47 Best Muffler 1
  • 48 Kartek Off Road 1
  • 49 Colton Truck Supply 1
  • 50 Wolfsburg West 1

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