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Kenworth T480 vs. Peterbilt 548: The Class 7 Workhorse Comparison
April 21, 2026 - 8:16:28 am

kenworth t480 truck

In the world of medium-duty vocational trucks, the distinction between a "standard" truck and a "workhorse" is measured in durability, ease of upfitting, and driver uptime. For many vocational fleets, the choice narrows down to two industry-leading Class 7 models: the Kenworth T480 vs. Peterbilt 548.

While both trucks share a prestigious PACCAR heritage, they are engineered to meet different philosophical needs on the job site. As a Kenworth-certified dealer, Wallwork Truck Center has helped countless operators navigate these specifications. This guide provides a technical breakdown of the engine options, transmissions, and PTO capabilities that define these Class 7 giants.

Short Summary

Choosing between the Kenworth T480 and Peterbilt 548 often comes down to the specific body you intend to mount. Here is the recommended winner for common medium-duty applications:

  • Best for Beverage Delivery: Kenworth T480. With its superior turning radius and a sloped hood designed for tight urban navigation, the T480 excels in the constant stop-and-go of city delivery routes.
  • Best for Utility Buckets & Booms: Peterbilt 548. The 548 is often favored for utility work due to its rugged all-aluminum cab and a multiplex electrical system that simplifies the integration of complex boom controls.
  • Best for Municipal Snowplows: Kenworth T480. The T480 offers a specialized "vocational hood" and parent rail extensions (FEPTO) that provide a more rigid mounting platform for heavy front-mount plows.
  • Best for Concrete Mixers (Medium Capacity): Kenworth T480. The T480's frame configuration is specifically engineered to handle the high-center-of-gravity and constant torsional stress of a rotating mixer drum.

Power and Performance: PACCAR PX-7 and PX-9 Options

The heart of the Kenworth T480 vs. Peterbilt 548 comparison is the shared engine lineup. Both models utilize the highly reliable PACCAR PX-series engines, which are designed for a B10 life of one million miles.

PACCAR PX-7 (6.7L)

The PX-7 is the benchmark for efficiency in the medium-duty sector. It is ideal for applications where weight savings are critical, such as beverage haulers or refrigerated box trucks.

  • Horsepower: 200 – 360 HP
  • Torque: 520 – 800 lb-ft
  • Key Advantage: Offers the best power-to-weight ratio for Class 7 city operations.

PACCAR PX-9 (8.9L)

When your Class 7 truck needs Class 8 muscle, the PX-9 is the solution. This engine is built with heavy-duty components, including replaceable wet-cylinder liners and a targeted cooling system.

  • Horsepower: 260 – 450 HP
  • Torque: 860 – 1,250 lb-ft
  • Key Advantage: Delivers the torque required for heavy vocational tasks like towing, recovery, and heavy utility work.

Transmission Configurations: Allison and PACCAR TX-8

A vocational truck's performance is only as good as its ability to transfer power to the wheels. While manual and automated manual options exist, the Allison Automatic and the PACCAR TX-8 are the dominant choices for these models.

  • PACCAR TX-8 Automatic: Standard on the Kenworth T480, this 8-speed transmission is a modern marvel. It features a twin-countershaft design and can provide up to a 5% fuel economy improvement over traditional automatics. It is controlled via an intuitive, automotive-style column shifter that clears up floor space in the cab.
  • Allison 2000/3000/4000 Series: The Peterbilt 548 and Kenworth T480 can both be spec'd with Allison transmissions. Allison is the gold standard for applications requiring continuous power to the wheels (such as refuse or mixers) and provides "Continuous Power Technology" for smoother acceleration under heavy load.

Seamless Upfitting: PTO Integration and Electrical Architecture

The most expensive part of a work truck is often the body. The Kenworth T480 and Peterbilt 548 are both designed to reduce "body-ready" time, saving you money during the upfit process.

PTO (Power Take-Off) Capabilities

For utility buckets, cranes, and spreaders, the PTO is the lifeblood of the truck.

  • Kenworth T480: Offers versatile PTO options, including FEPTO (Front Engine PTO) and REPTO (Rear Engine PTO). The T480's frame is designed with "clear" rails, meaning air tanks and fuel lines are tucked away to allow for easy mounting of hydraulic pumps and outriggers.
  • Peterbilt 548: Utilizes a lightweight, corrosion-resistant all-aluminum cab and features a simplified electrical architecture. This system allows for "plug-and-play" integration with body controllers, reducing the risk of wiring errors during the upfit.

Turning Radius and Maneuverability

In the Class 7 world, maneuverability is a safety feature. The Kenworth T480 features an optimized wheel cut (up to 50 degrees depending on tire size), which allows it to pivot in tight alleys where other Class 7 trucks would require a three-point turn. This agility is a primary reason why the T480 is a favorite for urban landscape and delivery fleets.

Why the Kenworth T480 Leads the Class 7 Field

While both the Kenworth T480 and Peterbilt 548 are premium machines, the Kenworth T480 offers a more integrated vocational experience. From the standard TX-8 automatic transmission to the driver-centric 7-inch digital display and the customizable "SmartWheel" controls, the T480 is designed to make the driver's day easier and the fleet's TCO (Total Cost of Ownership) lower.

At Wallwork Truck Center, we don't just sell trucks—we spec solutions. Whether you need a T480 for a municipal fleet or a single-axle dump for your construction business, our team has the technical knowledge to ensure your Kenworth is built to perform for the long haul.

Ready to see the Kenworth T480 in action? Contact the experts at Wallwork Truck Center today to schedule a demo and see why Kenworth remains "The World's Best."
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