Sifting through countless of stocks in the Building Products industry can be tedious, and sometimes two stocks are just too similar to judge which is the better investment. If you’re on the fence about investing in Modine Manufacturing Company, Dorman Products or Inc. because you’re not sure how they measure up, it’s important to compare them on a few factors before making your decision.

Read on to learn how Modine Manufacturing Company, Dorman Products and Inc. compare based on key financial metrics to determine which better meets your investment needs.

About Modine Manufacturing Company, Dorman Products and Inc.

Modine Manufacturing Company designs, engineers, tests, manufactures, and sells mission-critical thermal solutions in the United States, Canada, Italy, Hungary, the United Kingdom, China, and internationally. It offers heat transfer products, including round tube plate fin construction; gas-fired, hydronic, electric, and oil fired unit heaters; roof-mounted direct- and indirect-fired makeup air units, duct furnaces, infrared units, and perimeter heating products; single packaged unit ventilators, modular chillers, air handler and condensing units, and ceiling cassettes; evaporator unit coolers, remote condensers, fluid coolers, gas coolers, and dry and brine coolers; and motor and generator cooling coils, transformer oil coolers, radiators, dryers, and industrial heat exchangers. The company also provides data center products that consists of IT cooling solutions, including chillers, dry coolers, precision air handling units, computer room air conditioning, computer room air handler units, fan walls, rear-door heat exchangers, coolant distribution units, and immersion solutions, as well as sells replacement parts, maintenance service and control solutions for existing equipment and new building management controls and systems. In addition, it offers powertrain cooling products, such as radiators, condensers, engine cooling modules, charge air coolers, fan shrouds, and surge tanks; cooling module generator sets; aluminum and stainless steel engine oil coolers, exhaust gas recirculation coolers, liquid charge air coolers, transmission and retarder oil coolers, chillers, and condensers; battery thermal management systems, electronics cooling packages, battery chillers, battery cooling plates, coolers and casings for electronics cooling, and coolers for electric axles; and coatings products and application services. The company was incorporated in 1916 and is headquartered in Racine, Wisconsin.

Dorman Products, Inc. supplies replacement and upgrade parts for the motor vehicle aftermarket industry in the United States and internationally. It operates through segments Light Duty, Heavy Duty, and Specialty Vehicle segments. The company offers engine products, including intake and exhaust manifolds, oil filters and coolers, fans, thermostat housings, and throttle bodies; undercar products, such as fluid lines, fluid reservoirs, connectors, 4-wheel drive components and axles, drain plugs, other engine, transmission, and axle components; steering and suspension products comprising control arms, ball joints, tie-rod ends, brake hardware and hydraulics, wheel and axle hardware, suspension arms, knuckles, links, bushings, and leaf springs, as well as other suspension, steering, and brake components; body products, including door handles and hinges, window lift motors, window regulators, switches and handles, wiper components, lighting, electrical, and other interior and exterior vehicle body components, including windshields for UTVs; electronics products, such as new and remanufactured modules, clusters and sensors; and hardware products consisting of threaded bolts and auto body fasteners, automotive and home electrical wiring components, and other hardware assortments and merchandise. It also provides OE FIX solutions, including exhaust manifolds, metal heater hose connectors, and aluminum oil filter housings; and intake manifolds, exhaust manifolds, oil filters and coolers, exhaust gas recirculation coolers, driveshafts, UTV windshields, and complex electronics modules. The company markets its products under the DORMAN, DORMAN OE FIX, HELP!, Conduct-Tite, Dayton Parts, SuperATV, Keller Performance Products, Assault Industries, Gboost, and GDP brands through aftermarket retailers, dealers, and national, regional, and local wholesale distributors and specialty markets. Dorman Products, Inc. was founded in 1918 and is headquartered in Colmar, Pennsylvania.

Latest Building Products and Modine Manufacturing Company, Dorman Products, Inc. Stock News

As of September 2, 2026, Modine Manufacturing Company had a $9.5 billion market capitalization, compared to the Building Products median of $5.0 million. Modine Manufacturing Company’s stock is up 33.9% in 2026, down 4.1% in the previous five trading days and up 34.01% in the past year.

Currently, Modine Manufacturing Company’s price-earnings ratio is 66.9. Modine Manufacturing Company’s trailing 12-month revenue is $3.4 billion with a 4.3% net profit margin. Year-over-year quarterly sales growth most recently was 28.0%. Analysts expect adjusted earnings to reach $7.513 per share for the current fiscal year. Modine Manufacturing Company does not currently pay a dividend.

As of September 2, 2026, Dorman Products, Inc. had a $3.8 billion market cap, putting it in the 63rd percentile of all stocks. Dorman Products, Inc.’s stock is up 4% in 2026, down 0.1% in the previous five trading days and down 19.94% in the past year.

Currently, Dorman Products, Inc.’s price-earnings ratio is 17.9. Dorman Products, Inc.’s trailing 12-month revenue is $2.2 billion with a 10.2% net profit margin. Year-over-year quarterly sales growth most recently was 0.7%. Analysts expect adjusted earnings to reach $8.665 per share for the current fiscal year. Dorman Products, Inc. does not currently pay a dividend.

How We Compare Modine Manufacturing Company, Dorman Products and Inc. Stock Grades

Stock evaluation requires access to huge amounts of data and the knowledge and time to sift through it all, make sense of financial ratios, read income statements and analyze recent stock movements. AAII created A+ Investor, a robust data suite that condenses data research in an actionable and customizable way suitable for investors of all knowledge levels, to help investors streamline and work through such data.

AAII’s proprietary stock grades come with A+ Investor. These offer intuitive A‐F grades for each of five key investing factors: value, growth, momentum, earnings estimate revisions and quality. Here, we’ll take a closer look at Modine Manufacturing Company, Dorman Products and Inc.’s stock grades to see how they measure up against one another.

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Modine Manufacturing Company, Dorman Products and Inc. Stock Value Grades

Company	Ticker	Value
Modine Manufacturing Company	MOD	F
Dorman Products, Inc.	DORM	C

Successful stock investing involves buying low and selling high, so stock valuation is an important consideration for stock selection.

Buying stocks that are going to go up typically means buying stocks that are undervalued in the first place, although momentum investors may argue that point.

AAII’s A+ Investor Value Grade derives from a stock’s value score. The Value Score is the percentile rank of the average of the percentile ranks of the price-to-sales ratio, price-earnings ratio, enterprise-value-to-EBITDA (EV/EBITDA) ratio, shareholder yield, price-to-book-value ratio and price-to-free-cash-flow ratio. The score is variable, meaning it can consider all six ratios or, should any of the six ratios not be valid, the remaining ratios that are valid. To be assigned a Value Score, stocks must have a valid (non-null) ratio and corresponding ranking for at least two of the six valuation ratios.

Stocks with a Value Score from 81 to 100 are considered deep value, those with a score between 61 and 80 are a good value and so on.

Modine Manufacturing Company has a Value Score of 11, which is Ultra Expensive. Dorman Products, Inc. has a Value Score of 57, which is Average.

The Value Stock Winner: No Clear Winner

Neither Modine Manufacturing Company, Dorman Products or Inc. has a high enough value grade to be considered a “winner.” Investors who are considering these companies should do additional due diligence and research to see if either could be a good addition to their portfolio. It’s important to look at a wide range of financial metrics in order to determine if Modine Manufacturing Company, Dorman Products or Inc. is the better investment when it comes to value.

Modine Manufacturing Company, Dorman Products and Inc. Growth Grades

Company	Ticker	Growth
Modine Manufacturing Company	MOD	A
Dorman Products, Inc.	DORM	A

The foundation of growth investing is seeking out stocks of companies exhibiting strong, consistent and prolonged growth that is expected to continue into the future.

In order to compute the growth score and assign it a letter grade, the percentile ranks for each of three components‐consistency of annual sales growth, five-year sales growth rankings adjusted for extreme levels, and consistency of positive annual cash from operations‐must be determined. These three rank figures are added together, and the sum is ranked against the entire stock universe to arrive at a company’s Growth Score to create an equal distribution of grades.

The companies in the bottom 20% of the stock universe receive Growth Grades of F, considered to be very weak, while those in the top 20% receive A grades, which are considered very strong.

Modine Manufacturing Company has a Growth Score of 89, which is Very Strong. Dorman Products, Inc. has a Growth Score of 89, which is Very Strong.

The Growth Grade Winner: It’s a Tie!

Looking at the Growth Grade breakdown above, both Modine Manufacturing Company, Dorman Products and Inc. have a grade of A. For investors who focus solely on a company’s upward growth, further research should be conducted into both companies’ other financial metrics before deciding whether to invest.

Modine Manufacturing Company, Dorman Products and Inc.’s Momentum Grades

Company	Ticker	Momentum
Modine Manufacturing Company	MOD	C
Dorman Products, Inc.	DORM	D

Momentum grades help to uncover stocks experiencing anomalously high rates of return; research finds that stocks with high relative levels of momentum tend to outperform, whereas those with low levels of momentum tend to continue underperforming. Momentum is based on the price change of a stock over a specified period relative to all other stocks.

Typically, AAII looks at the weighted relative strength over the trailing four quarters. The weighted four-quarter relative strength rank is the relative price change for each of the past four quarters. The most recent quarterly price change is given a weight of 40% and each of the three previous quarters are given a weighting of 20%.

Modine Manufacturing Company has a Momentum Score of 45, which is Average. Dorman Products, Inc. has a Momentum Score of 29, which is Weak.

The Momentum Stock Winner: No Clear Winner

Neither Modine Manufacturing Company, Dorman Products or Inc. has a strong enough Momentum Grade to be considered a “winner.” Investors considering these companies should do additional due diligence and research to see if either could be a good addition to their portfolios. It’s important to look at a wide range of financial metrics in order to determine if Modine Manufacturing Company, Dorman Products or Inc. is the better investment when it comes to momentum.

Other Modine Manufacturing Company, Dorman Products and Inc. Grades

In addition to Momentum, Value and Growth, A+ Investor also provides grades for Estimate Revisions and Quality.

Earnings estimate revisions scores take into account the magnitude of a company’s earnings surprise in its last two reported fiscal quarters. Often, surprises beget further surprises‐or at least continued sales growth (the exact opposite is generally true, too).

AAII’s A+ Investor Quality Grade comes from the ranking of key metrics. Specifically, the quality grade is the percentile rank of the composite of return on assets (ROA), return on invested capital (ROIC), gross profit relative to assets, buyback yield, change in total liabilities to assets, accruals, Z double prime bankruptcy risk (Z) score and F-Score.

These 2 key factors, when combined with the above, provide a holistic view into a particular stock. Further, by joining A+ Investor you can see whether Modine Manufacturing Company, Dorman Products and Inc. pass any of our 60+ stock screens that have outperformed the market since their creation.

So, Which Is the Better Investment, Modine Manufacturing Company, Dorman Products or Inc. Stock?

Overall, Modine Manufacturing Company stock has a Value Score of 11, Growth Score of 89 and Momentum Score of 45.

Dorman Products, Inc. stock has a Value Score of 57, Growth Score of 89 and Momentum Score of 29.

Comparing Modine Manufacturing Company, Dorman Products and Inc.’s grades, scores and metrics can act as a solid basis to determine whether they may be a good investment or not. You’ll also want to look at your portfolio’s asset allocation as well as your risk tolerance and financial goals to see if either of these stocks would make a good fit for you. AAII can help you figure out which investments align with your individual needs and preferences.

Investors are encouraged to do their own due diligence and research. In this way, individuals can effectively become managers of their own assets‐without having to rely on others for financial independence. You can count on AAII for timeless articles on financial planning and stock-picking, unbiased research and actionable analysis.

A+ Investor adds to our qualitative teaching with a powerful data suite to help you whittle down investment choices to find stocks, exchange-traded funds (ETFs) or mutual funds that meet your needs.

AAII Disclaimer

We make no representations or warranties that any investor will, or is likely to, achieve profits similar to those shown, because past, hypothetical or simulated performance is not necessarily indicative of future results. Before making an investment decision, you should consider your circumstances and whether the information on our content is applicable to your situation. This information was prepared in good faith, and we accept no liability for any errors or omissions. The full disclaimer can be read here.