Metro by metro
The leading auto parts store chains in every Maine metro area
Tracked auto parts store chains ranked by consumer spend in each metro area, Q4 2025–Q3 2026. O'Reilly Auto Parts leads in 2 metro areas, NAPA Auto Parts in 1 metro area. Against their share in Maine as a whole, NAPA Auto Parts stands out in 1 metro area, Advance Auto Parts in 1 metro area, and Carquest Auto Parts in 1 metro area.
By tracked consumer spend, Q4 2025–Q3 2026
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NAPA Auto Parts
Relative #1 in Lewiston-Auburn, ME, 2× its share in Maine
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Advance Auto Parts
Relative #1 in Portland-South Portland, ME, 1× its share in Maine
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Carquest Auto Parts
Relative #1 in Bangor, ME, 5.4× its share in Maine
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O'Reilly Auto Parts
#1 in 2 metro areas
Portland-South Portland, ME · Bangor, ME
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NAPA Auto Parts
#1 in Lewiston-Auburn, ME
A metro area shows a ranking once it has at least 2 tracked auto parts store chains and 10 tracked stores. Relative to Maine compares a chain's share of the metro area's spend with its share in Maine as a whole. It ranks the 7 biggest chains in Maine and the chains that lead a metro area by spend, wherever a chain has at least 5% of the metro area's spend and 3 stores there. Metro areas are the Census Bureau's metropolitan statistical areas; the rest of Maine is light gray. Colors match the store map; other tracked chains are gray.
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. Tire Warehouse and Advance Auto Parts sit in the high-growth half.
| Rank | Chain | Rank movement | YoY growth |
|---|---|---|---|
| 1 | Tire Warehouse | - | +15.6% |
| 2 | Advance Auto Parts | - | +2.9% |
| 3 | NAPA Auto Parts | - | +1.6% |
| 4 | O'Reilly Auto Parts | - | +0.1% |
| 5 | AutoZone | - | -4.5% |
| 6 | Paulin's Tire & Auto Care | - | -6.2% |
| 7 | Carquest Auto Parts | - | -9.0% |
- O'Reilly Auto Parts
- NAPA Auto Parts
- AutoZone
- Advance Auto Parts
- Tire Warehouse
- Patriot Subaru
- Carquest Auto Parts
- Other tracked chains
Store footprint
Store map
171 tracked store locations in Maine. The 7 largest tracked chains are highlighted. The top 5 chains by store count run 128 of the 171 stores (75%); 24 of the 32 tracked chains have a single store here. 12% of the tracked gas & auto stores here are auto parts stores, against 11% across the United States.
- O'Reilly Auto Parts (37)
- NAPA Auto Parts (38)
- AutoZone (14)
- Advance Auto Parts (17)
- Tire Warehouse (15)
- Patriot Subaru (1)
- Carquest Auto Parts (21)
- Other tracked chains
Top tracked chains by store count
- 1 NAPA Auto Parts 38
- 2 O'Reilly Auto Parts 37
- 3 Carquest Auto Parts 21
- 4 Advance Auto Parts 17
- 5 Tire Warehouse 15
- 6 AutoZone 14
- 7 Paulin's Tire & Auto Care 3
- 8 Randy's Auto Parts 2
- 9 Harry J Smith Co 1
- 10 Messer Truck and Van Maine 1
- 11 Auto Sound 1
- 12 Mechanic Falls Auto Supply 1
- 13 Tyler's Auto Parts 1
- 14 Brunswick Auto Recycling 1
- 15 Paul's Pick-A-Part 1
- 16 Cumberland Salvage 1
- 17 Tri-City Auto Supply 1
- 18 Coastal Auto Parts 1
- 19 Sylvio Paradis & Son 1
- 20 Southern Maine Communications 1
- 21 Houlton Towing ASR 1
- 22 Quirk Aftermarket Parts 1
- 23 HCR Chrome Shop 1
- 24 Lashin's Auto Sales and Salvage Yard 1
- 25 FleetPride 1
- 26 Traction Heavy Duty Parts 1
- 27 Auto City of Maine Inc. 1
- 28 Rack Attack 1
- 29 Soule's Auto Supply 1
- 30 Capital City Tire 1
- 31 Ira Jack Chevrolet 1
- 32 Patriot Subaru 1
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