▌Top Stocks · AUTO PARTS·Updated September 6, 2026
Inside Our Top Auto Parts Stock Picks for September 2026
A five-stock countdown covers aftermarket retailers, a digital auto marketplace, and replacement-parts suppliers, with three lower-ranked names available in the public portion.
Auto parts stocks sit at the intersection of a defensive replacement-demand story and a rapidly changing vehicle market. Investors continue to value aftermarket businesses for their recurring repair needs and relatively steady cash flows, while tariffs, sourcing changes and shifting vehicle technology are reshaping the economics of suppliers. The backdrop became more urgent in August 2026, when Reuters reported that President Donald Trump threatened 50% tariffs on cars, trucks and automotive parts from Canada beginning January 1, 2027. That policy risk can quickly affect costs, inventory and valuations across the industry.
The structural case rests on several forces: an aging vehicle fleet supports replacement demand, higher repair costs can extend the value of parts sales, and supply-chain localization is pushing manufacturers and distributors to reassess sourcing. Aftermarket distributors and retailers remain the more defensive corner of the theme, while OEM-linked suppliers face production swings, model-mix changes and EV-program volatility. Specialty opportunities are also emerging in electronics, diagnostics, thermal management and lightweighting as vehicles become more software- and battery-intensive.
This countdown moves from #5 to #1, combining direct aftermarket exposure with selected businesses that support the broader automotive ecosystem. The ranking gives priority to depth of exposure to auto parts and then considers business fundamentals, including profitability, growth, valuation, earnings execution and analyst sentiment. That approach leaves room for both resilient retailers and more challenged or indirect names, helping investors see where thematic purity and financial quality diverge.
Our screen focuses on US-listed companies with market capitalization above $500 million and meaningful exposure to auto parts, aftermarket distribution, automotive retail or closely related services. We then rank the candidates first by the depth of that exposure and second by business fundamentals drawn from primary-source financial information, valuation measures, profitability, growth metrics and earnings history. This is a countdown, so the strongest overall fit appears at #1 rather than at the start of the article. Composite grades and analyst consensus are included as supporting signals, not as substitutes for reviewing the underlying business.
What they do. The company supplies non-discretionary aftermarket replacement parts and test solutions through its Hard Parts, Test Solutions and Diagnostic Equipment, and Heavy Duty segments. Its product range includes alternators, starters, wheel hubs, bearings, brake components and diagnostic equipment, sold to automotive retail chains, warehouse distributors and selected manufacturers for aftermarket and warranty programs. Its branded portfolio and mix of light-duty, heavy-duty and testing products give it multiple routes into the replacement market.
Why it fits.MPAA has direct exposure to the parts categories most closely tied to repair demand, including rotating electrical products, wheel hubs, bearings and brakes. It also provides equipment for electric-vehicle production and software emulation for electrified transportation, giving the company an avenue into vehicle technology changes without abandoning its combustion-engine aftermarket base. The Heavy Duty segment adds replacement-part exposure across trucks, industrial, marine and agricultural applications.
Numbers that matter. Revenue was $769,462,976, while EBITDA was $62,544,000. Gross margin was 20.6%, operating margin was 2.8% and net margin was negative 0.53%, underscoring the thin profitability cushion. Revenue declined 10.8% year over year and earnings declined 18.2%; TTM EPS was negative $0.24, although next-year EPS is estimated at $1.16. The core valuation data lists a forward P/E of 8.8731, while the quote data shows a P/E of 12.72.
Recent momentum.MPAA reported EPS of negative $0.71 for the quarter reported August 10, 2026, versus an estimate of $0.05, a negative 1520.0% surprise. It has beaten estimates in only 2 of the last 8 reported quarters, although the June 8, 2026 report beat by 48.2%. Analyst consensus is 5.0/5 with an average target of $18, but the earnings record and negative margins make the turnaround case highly dependent on execution.
What they do. Cars.com operates a digital marketplace and technology platform for OEMs, dealers and auto-adjacent companies. Its offerings include vehicle merchandising, reputation management, dealer websites, digital financing tools, AccuTrade appraisal technology and media products that use inventory, audience and in-market shopper data. The business is positioned less as a parts seller than as an automotive retail infrastructure provider connecting dealers with buyers.
Why it fits. Cars.com is the list's most indirect auto-parts exposure because it does not distribute replacement components. Its relevance comes from supporting the broader automotive ecosystem: dealer websites, trade-in valuation and targeted media help dealers merchandise vehicles and manage retail activity. That makes it a useful adjacent name for investors who want automotive exposure beyond parts inventory, but it lacks the direct replacement-demand sensitivity of the aftermarket retailers and distributors ranked above it.
Numbers that matter. Revenue was $725,633,024 and EBITDA was $157,244,992. Cars.com posted a 67.1% gross margin, a 15.49% operating margin and a 4.73% net margin, with ROE of 7.4% and ROA of 5.01%. Revenue growth was 0.7% year over year, while earnings growth was 127.3%; TTM EPS was $0.57 and next-year EPS is estimated at $2.5893. Core valuation data shows a trailing P/E of 20.5789 and forward P/E of 5.1046.
Recent momentum. The August 6, 2026 report produced EPS of $0.41 versus an estimate of $0.36, a 13.9% beat. That was only the company's first beat in the last 8 reported quarters, so the recent improvement needs confirmation. Analyst consensus is 3.7143/5, with 1 Buy, 2 Holds and no listed Sells, alongside an average target of $13.7143.
What they do. Advance Auto Parts is a direct aftermarket retailer serving professional installers and do-it-yourself customers through Advance Auto Parts and Carquest stores, independently owned branded stores and online channels. It sells batteries, brakes, filters, fluids, starters, alternators, engine parts, steering components and a wide range of maintenance and accessory products. Installation, diagnostics, recycling and loaner-tool programs add service value beyond the sale of individual parts, strengthening its relevance to both professional and consumer repair customers.
Why it fits.AAP offers one of the most direct ways to participate in the replacement-parts cycle, with exposure spanning wear items, electrical components, powertrain parts and fluids. Its professional installer customer base can benefit from an aging fleet and increasingly expensive repairs, while its DIY offering broadens the demand base. The breadth of its assortment also reduces dependence on any single component category, although retail execution and inventory productivity remain important.
Numbers that matter. Revenue was $8,622,000,128 and EBITDA was $629,000,000. Gross margin was 45.1%, but operating margin was 5.55% and net margin was only 0.99%; ROE was 4.89% and ROA was 2.07%. Revenue declined 0.5% year over year, while earnings growth was 260%; TTM EPS was $1.85 and next-year EPS is estimated at $3.8927. The core valuation data lists a trailing P/E of 23.8811 and forward P/E of 11.1982.
Recent momentum. Advance has beaten estimates in each of the last 7 reported quarters. Its August 20, 2026 report showed EPS of $1.03 versus an estimate of $0.81, a 27.2% beat, following a 75.0% beat in May. Analyst consensus is 3.0/5, with 25 Holds and 2 Sells listed and no Buy count supplied; the average target is $50.2105. The earnings streak is encouraging, but the low net margin and weak return metrics keep this from ranking higher.
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This monthly screen begins with US-listed companies above the $500 million market-cap threshold that have meaningful exposure to auto parts, aftermarket distribution, automotive retail or adjacent automotive services. Candidates are ordered first by thematic depth: direct replacement-parts manufacturers, distributors and retailers receive more weight than businesses serving the automotive ecosystem indirectly. Business fundamentals then determine the order among similarly exposed companies, using revenue and earnings growth, margins, returns, valuation, earnings surprises, analyst consensus and the composite quality grade. The list is refreshed monthly so changes in operating results, estimates and market data can alter the countdown.
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