Trade frictions between the US and Canada are back in the headlines, with tariff threats on cars and parts putting fresh focus on where auto related stocks really earn their money. For investors, sharp swings in sentiment can quickly reprice both risk and opportunity. This article walks through three domestic focused auto parts and aftermarket suppliers that are closely tied to the latest trade shock and explains how the news could matter for their stocks.

The stocks covered below are just a small sample of this idea, and the full screen surfaced 13 more US and Canadian domestic focused auto parts and aftermarket companies with similarly detailed stories that are not included here. To identify and analyze your own highest conviction angles in this theme, head straight to the US and Canadian Domestic-Focused Auto Parts & Aftermarket Suppliers screener.

Valvoline (VVV)

Overview: Valvoline is a US based auto service company that focuses on quick, preventive maintenance through its own and franchised retail stores in the US and Canada. It earns most of its money from oil changes and related services like battery, wiper and tire care, which ties directly to domestic vehicle repair needs when new car supply is disrupted by tariffs.

Operations: Valvoline generates essentially all of its revenue, about $2.0b, from its Retail Services segment, which covers its store based automotive maintenance network.

Market Cap: $4.3b

Valvoline provides direct exposure to US and Canadian car owners who still need to keep vehicles on the road even if tariffs make new models more expensive or harder to source. Same store sales growth, premium services and store expansion are key profit drivers. However, high debt, thinner recent profit margins and long term risks from electric vehicles mean execution is significant. Management has discussed tariff related cost pressures and outlined supplier shifts and pricing actions intended to keep the financial impact limited, which is important if trade frictions persist. For investors watching how domestic maintenance demand, leverage and margins interact in this trade shock, there is more to consider beneath the headline story.

Valvoline’s tariff play might be less about same store sales and more about how its balance sheet and margins cope with higher costs. Get the full story in the Valvoline financial health report

Camping World Holdings (CWH)

Overview: Camping World Holdings is a US based retailer focused on recreational vehicles and RV related products and services, from selling new and used RVs to providing financing, maintenance, insurance, roadside assistance and membership programs such as Good Sam. That mix keeps the company firmly tied to domestic auto related spending, with a growing tilt toward RV repair, aftermarket parts and used units when new vehicle affordability is under pressure.

Operations: Camping World generates about US$6.1b from its RV and Outdoor Retail segment and about US$200 million from Good Sam Services and Plans, with essentially all of its roughly US$6.3b in revenue coming from customers in the United States.

Market Cap: US$678 million

Camping World gives you exposure to US RV ownership and the aftermarket services that come with keeping those vehicles on the road, while also sitting at a valuation that many investors view as low relative to domestic retail peers. Management has been leaning into used RVs, higher margin service work and membership based recurring revenue, which can all become more important if tariffs and price increases on new units push consumers toward repair, resale and affordability. At the same time the company carries meaningful debt, has faced recent profitability pressure and recorded asset impairments in 2026, so the balance between value opportunity and financing risk is delicate. For investors willing to do the work, the combination of tariff driven pricing shifts, used inventory economics and a broad RV service ecosystem makes Camping World a richer story than the headlines suggest.

Camping World’s pivot toward used RVs and higher margin services could be masking an underappreciated reset in the business. Get the context on leverage, impairments and tariff exposure in the analysis report for Camping World Holdings

Monro (MNRO)

Overview: Monro is a US based chain of retail tire and automotive repair stores that focuses on replacement tires, undercar repair and routine maintenance for passenger cars, light trucks and vans. With all of its brands concentrated on keeping US vehicles on the road, Monro fits squarely into the theme of domestic auto maintenance and replacement demand at a time when cross border auto trade is under pressure.

Operations: Monro generates about $1.1b from its Auto Repair Centers segment, with all of this revenue coming from customers in the United States.

Market Cap: $392 million

Monro provides focused exposure to US auto repair and tire replacement at a time when renewed US Canada trade friction and potential tariffs on cars and parts are refocusing attention on local aftermarket providers. The company is working through a store portfolio clean up, digital tools and merchandising reset, and is also running a review of “strategic alternatives” after activist pressure and index changes. At the same time, profitability has been uneven, recent quarters included losses, and a high dividend that is not well covered by earnings raises questions about how generous shareholder payouts can remain. Investors assessing whether tariff related demand shifts and corporate actions can outweigh those pressures may find Monro worth a closer look.

Monro’s repair focus and contested dividend policy could be setting up a sharper reset than many investors expect. Read the 3 key rewards and 2 important warning signs (1 is major!) to see how the upside case intersects with the pressure points that might matter next.

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This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.