Mack Trucks Completes Lehigh Valley Renovation
Mack Trucks completed an $84 million renovation project dubbed "Reborn" at its Lehigh Valley plant and named a new vice president and general manager for LVO.

The facility, which is located in Lower Macungie Township, Pa., produces all heavy-duty Mack truck models built for North American and export markets.

Mack Trucks has achieved a major milestone at its Lehigh Valley Operations (LVO) in Macungie, Pennsylvania, with the completion of an $84 million renovation dubbed project “Reborn.”
Mack Trucks achieved a major milestone at its Lehigh Valley Operations (LVO) in Macungie, Pa., with the completion of an $84 million renovation project dubbed “Reborn.” Additionally, Mack Trucks announced that effective Oct. 1, 2020, Gunnar Brunius was appointed vice president and general manager of LVO.
The facility, which is located in Lower Macungie Township, Pa., produces all heavy-duty Mack truck models built for North American and export markets.
The comprehensive project revitalized the facility’s infrastructure, equipment, systems, and processes, according to Mack, to create a modernized Lean Manufacturing environment delivering even greater production quality, safety, and efficiency.
“Mack’s Lehigh Valley Operations has built high-quality heavy-duty trucks that our customers depend on for 45 years,” said Martin Weissburg, president of Mack Trucks. “This investment in the plant, our people and new processes allows us to continue delivering on Mack’s legendary durability through integrated, modern manufacturing.”
Thousands of upgrades were made to the plant’s manufacturing operations, including a 300,000 square-foot expansion to improve material handling and flow; installation of new equipment and tooling; implementation of new manufacturing IT systems; and construction of a new audit building equipped with stalls and CNG test pads for quality checks on completed vehicles.
The site also added a new 20,000 square-foot building for a Customer Adaptation Center and to support the MackLR Electric model that will be commercialized in 2021.
A major component of the project was the insourcing of complete chassis assembly to better manage and streamline the manufacturing process.
The entire facility was given a fresh coat of paint and new, efficient lighting, offering customers and employees an enhanced experience. LVO added a new lobby and visitor welcome center, a refreshed Mack Shop merchandise store, modernized cafeteria and office spaces, as well as doubled the amount of restrooms. Externally, the parking capacity was expanded and a new logistics building was added to the campus.
Adopting Lean Manufacturing principles supported the LVO leadership’s goals of increased productivity and consistent product quality and safety for the entire team in all areas of the facility.

Mack Trucks named Gunnar Brunius vice president and general manager of its Lehigh Valley Operations.
Photo: Mack Trucks
“LVO has been completely transformed compared to the day I arrived in 2016,” said Rickard Lundberg, who as vice president and general manager of LVO led the project. “The physical space has been renovated to allow the openness for employees to learn together and embrace our Lean Manufacturing approach. Without the great people who are part of the LVO team, we could not have created this culture, this spirit of Mack Trucks that is reflected in each vehicle that rolls off the assembly line.”
Mack’s Lehigh Valley Operations produced its first trucks in 1975. Today, the 1 million square-foot facility assembles all heavy-duty Mack trucks built for the North American market and export.
Brunius currently serves as vice president of the Volvo Trucks vehicle assembly plant in Tuve, Sweden, a position he has held since 2015. He has nearly 40 years of manufacturing, engineering and business experience at the Volvo Group, Saab Automotive AB, and General Motors.
More Vehicle Insights

Morgan Olson Launches North America’s Longest Working Step Van Challenge
Morgan Olson has launched North America’s Longest Working Step Van Challenge, a new customer campaign to find the longest-working qualifying Morgan Olson or Grumman step van actively delivering packages for an independent service provider contracted by FedEx.
Read More →
Ford Transit Fleet Guide Specs Capability and 2027 Model-Year Updates
Explore 2027 Ford Transit fleet specs, engines, payload and towing capability, cargo configurations, work features, technology, and model-year updates.
Read More →
Mack Defense to Spotlight Common Tactical Truck Line Haul Hybrid Tractor During AUSA 2026
Mack Defense was awarded a contract to design, build, and deliver prototype vehicles for the U.S. Army’s Common Tactical Truck (CTT) program. It will show off its line-haul hybrid tractor prototype, based on the Mack Granite, at the 2026 United States Army (AUSA) Annual Meeting and Exposition.
Read More →
Advance Produces 20,000th Front-Discharge Mixer
Advance celebrated the production of its 20,000th front-discharge mixer, a Commander Series FD4000 mixer. Jack Willard first developed the original Rite-Way Truck in 1964, and then Advance was established in 1972.
Read More →
GM Launches Clean Sheet Duramax 8.3L Turbo-Diesel V8 for 2027 HD Pickups
General Motors previewed key updates for its 2027 HD pickup lineup, which will now include a new Duramax 8.3L Turbo-Diesel, electric power steering, and electronic brake boost.
Read More →
GMC Sierra 1500 Fleet Guide Specs Capability and 2027 Model-Year Updates
The next-generation 2027 GMC Sierra 1500 brings new V-8 engines, more standard safety technology, updated trailering tools, and a work-focused Pro trim. Here’s what fleets need to know.
Read More →
Mack Defense Achieves Cybersecurity Maturity Model Certification Level 2
After an assessment conducted by an authorized Certified Third-Party Assessment Organization (C3PAO), Mack Defense has achieved Cybersecurity Maturity Model Certification (CMMC) Level 2.
Read More →
GM Unveils New Sixth-Generation Small Block Engines for 2027 Light-Duty Pickups
General Motors unveiled two new small-block engines, backed by extensive real-world validation and more than 70 years of small-block V8 manufacturing experience, as part of the engine portfolio for the 2027 Chevrolet Silverado 1500 and GMC Sierra 1500.
Read More →
Chevrolet Silverado 1500 Fleet Guide Specs Capability and 2027 Model-Year Updates
The next-generation 2027 Chevrolet Silverado 1500 brings new V-8 engines, updated technology, expanded safety features, and a fleet-focused Work Truck. Here’s what commercial fleets need to know so far.
Read More →
2026 Ram 1500 Tradesman Put to a Real-World Fleet Test
A few days behind the wheel of a 2026 Ram 1500 Tradesman turned into a test of visibility, parking, work-ready features, and even severe-weather driving.
Read More →

