TCW Trusts the Peterbilt 579 and PACCAR MX-13 to Power a Growing Fleet

For more than 75 years, TCW has built its reputation on reliability, efficiency and an unwavering commitment to its customers. Originally founded in 1948 as Tennessee Commercial Warehouse, the company has evolved into a full-service transportation provider. Since 1972, Peterbilt trucks have been a cornerstone of that journey.

Today, TCW operates a 100% Peterbilt Model 579 fleet, every one of them powered by the PACCAR MX-13 engine. It is a strategic decision that company owner Ben says has delivered measurable results across the business.

A Powertrain Built for Performance

TCW was an early adopter of the PACCAR MX-13 engine, making the switch as soon as it became available. The reason was simple. Having one parent company behind both the truck and the engine meant a true one-stop-shop for service, support and long-term reliability.

The results have exceeded expectations. TCW's fleet is averaging over 7.25 miles per gallon while pulling heavy cargo containers weighing up to 55,000 pounds at gross weights reaching 100,000 pounds. For a fleet operating at those weights, that level of fuel efficiency translates directly to lower cost of ownership and a stronger bottom line.

Uptime That Keeps the Business Moving

For any fleet, uptime is critical. TCW's single-spec strategy, running 100% Model 579s with MX-13 engines, gives them a unique advantage. By standardizing their fleet, they are able to work closely with the Peterbilt dealer network to take proactive measures that prevent downtime before it happens.

This approach keeps trucks on the road, freight moving on schedule and customers confident in TCW's ability to deliver.

A Driver's Perspective

The business case for the Model 579 is clear, but the driver experience tells an equally compelling story. With over 11 years behind the wheel of a PACCAR MX-13 powered Peterbilt, one TCW driver shared that he has never been stranded on the side of the road due to an engine malfunction.

"The Peterbilt 579 handles fantastically compared to other trucks I've driven," he said. "It feels like my home away from home." For him, the reliability of the 579 means something beyond uptime. It means getting home to his family every day and being ready to do it all again the next morning.

A Partnership Built for the Future

TCW's relationship with Peterbilt spans more than five decades, and according to Ben, the best is yet to come. Over the past 15 years, the partnership has helped TCW become a safer, more efficient fleet. He sees Peterbilt as a key partner in fueling the company's continued growth.

"We see Peterbilt as a key partner enabling us to continue our growth," said Ben. "And we feel like they'll continue to do so in the future."

For fleet owners looking for a truck and powertrain combination that delivers proven fuel efficiency, industry-leading uptime and the kind of driver satisfaction that retains top talent, TCW's story is proof that the Peterbilt Model 579 and PACCAR MX-13 engine deliver on every front.