Semi truck brands: the seven US makers, their models and engines

There are only seven brands of Class 8 semi truck sold new in the US, and four companies own them all. This guide lists each brand, its parent company, its main Class 8 models, and the engines and transmissions it offers, taken from the makers' own US websites. We do not rank brands, because no ranking fits every operation.

Semi truck brands list

Pick a brand to see its parent company, Class 8 models, engines and transmissions.

Facts from each manufacturer's US website, checked October 2026. Models and options change by model year; verify with a dealer before you buy.

How the brands differ

Brands sharing a parent company often share engines, transmissions and some parts. Freightliner and Western Star both use Detroit engines and transmissions; Kenworth and Peterbilt both use PACCAR engines and transmissions; Mack and Volvo share Volvo Group technology under different names. The differences that matter day to day are usually the cab, the dealer network, the spec options and how the truck fits your freight.

On-highway sleepers. Every maker has an aerodynamic long-haul model built for fuel economy: Cascadia, T680, 579, LT, Anthem and VNL are the best known.

Traditional and heavy-haul. Western Star, Kenworth's W990 and Peterbilt's 589 lean toward long hoods, heavier specs and owner-operator style.

Vocational. Freightliner's SD models, Western Star's 47X and 49X, Kenworth's T880, Peterbilt's 567, International's HX, Mack's Granite and Volvo's VHD serve dump, construction and heavy work.

What is the best semi truck brand?

We do not name one, and you should be wary of anyone who does without stating why. A brand that suits a fleet running regional day cabs may be the wrong pick for an owner-operator pulling heavy loads across mountains. Better questions to ask about any truck:

• Does the spec fit your freight? Horsepower, gearing, axles and weight for what you haul.
• Is there a dealer on your lanes? Downtime away from service costs more than a few points of fuel economy.
• What do the service records say? A well-kept truck of any brand beats a neglected one.
• How does it resell? Check auction results for that model and engine before you buy.
• What does it cost per mile? Fuel economy, parts and insurance together, in the trucking cost per mile calculator.

Engines and transmissions

Most new Class 8 trucks now come with automated manual transmissions from the maker's own line: Detroit DT12, PACCAR TX-12 and TX-18, International T14, Mack mDRIVE and Volvo I-Shift. Manual and fully automatic transmissions remain available on some vocational specs.

Integrated powertrains, where the engine and transmission come from the same maker, can be tuned to work together. Cummins engines give buyers of some brands a choice, and many shops know them well. On a used truck, the engine's history matters more than its name: ask for an ECM download and service records.

Medium-duty and box truck makers

Box trucks and medium-duty trucks come from a wider group. Freightliner, International, Kenworth, Peterbilt and others build medium-duty chassis, and Isuzu and others are common on smaller box trucks. For our purposes, box trucks start at 26 ft; we do not dispatch shorter box trucks or cargo vans. For pricing a box truck, use comparables in the semi truck value estimator.

Choosing a brand when you buy used

On a used truck, brand is the last filter, not the first. Start with the spec, then condition and records, then price. Two trucks of different brands with the same spec and similar history will usually cost similar amounts to run. Our used semi truck buying guide walks through the whole process.

Where you buy matters too. Read best semi truck dealerships for questions to ask a dealer, semi truck auctions if you plan to bid, and best state to buy a semi truck for tax and registration differences.

Electric and alternative-fuel models

Several makers now offer battery-electric Class 8 models alongside diesel, and some offer natural gas engines. Prices, range and charging needs differ a lot from diesel trucks; see electric semi truck price before considering one.

Dealer and service networks

For an owner-operator, the nearest capable dealer can matter more than the badge. A truck that breaks down 400 miles from the nearest shop that knows its engine costs days, not hours. Before you buy, look up the maker's dealer locator for your home base and the lanes you run most, and ask local independent shops which engines they service every week. Detroit, PACCAR, Cummins, International, Mack and Volvo engines all have wide networks, but coverage is not even across every region.

Reading fuel economy claims

Every maker advertises fuel economy gains for its latest models, usually measured against its own previous model under specific test conditions. Those claims are useful for comparing generations within one brand, and much less useful for comparing brands, because the test routes, loads and specs differ. Real fuel economy depends on the spec, the gearing, your speed, the load, the terrain and how much the truck idles. Ask the dealer for the exact spec behind any claim, and judge used trucks by their ECM fuel data.

Parts, shops and familiarity

Common models are easier and often cheaper to keep running. Parts for popular engines and transmissions are stocked widely, and more technicians know them. Less common specs can mean longer waits for parts and fewer shops willing to take the job. If you run far from home, favor a powertrain that shops along your lanes see every week.

Questions to ask a dealer about any brand

• What exact engine, transmission and axle ratio does this truck have?
• Which warranty coverage remains, and is it transferable?
• Where are the nearest authorized service locations on my lanes?
• What recalls or campaigns apply, and have they been done?
• Can I see the service history and an ECM report?

Spec matters more than the badge

Two trucks with the same badge can be completely different machines. A long-haul sleeper with a fuel-focused engine rating and fast gearing will struggle under heavy flatbed loads in the mountains, while a heavy-haul spec burns more fuel than it needs on a flat dry van lane. When you compare trucks, write down the engine and its rating, the transmission, the rear axle ratio, the wheelbase, the sleeper size and the weight. Compare those across brands, and you will usually find several trucks that fit your freight. Then let condition, service history, dealer access and price decide between them.

Brand and insurance, financing and resale

Insurers and lenders look at the truck as well as you. A popular, late-model truck with a common powertrain is usually easier to finance and insure, because lenders know what it will sell for if they have to repossess it, and insurers know what repairs cost. Unusual or very old specs can mean shorter loan terms and higher premiums. Before you commit to a truck, get a loan quote and an insurance quote on that exact VIN, and check recent auction results for the same model to see how it resells.

General information about buying, not financial, tax or legal advice. RigCaptain is not a lender, broker, dealer or insurer. Read every contract and ask a tax professional or attorney about your own deal.