Related: Trailer Orders Rebound In September
Class 8 Truck Sales Hit High Point, But Leading Indicators Point to Downturn
Class 8 truck sales hit an all-time high last month, but other important metrics seem to be indicating an imminent downturn.

Image: HDT
Class 8 truck retail sales hit an all-time high September, but leading indicators are pointing to a downturn, according to ACT Research’s latest State of the Industry: Classes 5-8 Report.
“September North American Class 8 retail sales reached a new record in seasonally adjusted terms, and in absolute terms were the highest since December 2006, ahead of the EPA07 emissions standards,” said Tim Denoyer, ACT Research’s vice president and senior analyst. “While most of the incremental strength came from the straight truck market, tractor capacity was added a touch faster than expected.”
Denoyer added, “We realize this seems to conflict with signs of capacity contraction such as bankruptcy and employment data, and would remind readers that private fleets, which now account for more than half of truckload capacity, are still growing.”
The rosy retail picture hides declines in other areas, according to ACT. The report found that “less negative” freight data reported early in the third quarter had softened since the imposition of further tariffs on Sept. 1 affecting $300 billion worth of goods imported from China.
“In concert with weak/deteriorating freight volumes and rates, forward-looking demand indicators continue to erode, with mid and downstream data points beginning to cycle lower,” said Denoyer.
Denoyer said that the current situation with weak truck orders and strong build is unsustainable and that downward build plan revisions are already happening. However, ACT expects the worst case scenarios for heavy-duty vehicle demand to remain unlikely.
Regarding the medium duty markets, he commented, “Medium duty demand metrics remain in better balance, but there are signs of fraying on weak net orders, relative build strength and excessive inventories.”
The State of the Industry report offers a monthly look at current production, sales and general state of the on-road heavy- and medium-duty commercial vehicle markets in North America. For more information, click here.
More Equipment

How Volvo Updated Its D13 for EPA 2027 [Watch]
Volvo’s updated D13 promises lower emissions without sacrificing performance or fuel economy. Take a closer look at what changed inside the engine in this HDT Spotlight video.
Read More →
Michelin Tire Improves Efficiency and Durability for Regional Fleets
The Michelin X Multi Energy D2 is a regional haul drive tire engineered to help fleets improve fuel efficiency, durability and traction in demanding stop-and-go operations.
Read More →
ZF Expands Commercial Vehicle Push in North America
ZF is expanding its North American commercial-vehicle presence with new transmission applications, electrification, trailer technology and autonomous-driving systems.
Read More →
Tesla Wants a Self-Driving Semi. Are Cameras Enough?
Could Tesla’s camera-only autonomous driving technology work on an 80,000-pound Semi? In this commentary, HDT's Deborah Lockridge takes a look at Tesla, Cybercab, and how autonomous trucks see the road.
Read More →
Kodiak: Driverless Long-Haul Truck Launch on Track for 2026
Kodiak AI says its driverless long-haul safety case is 93% complete and it remains on track to begin commercial operations by year-end 2026.
Read More →
What DOT’s Automated Vehicle Strategy Means for Trucking
The U.S. Department of Transportation issued a new automated-vehicle strategy that outlines plans for driverless-truck regulations, cross-state freight corridors, and federal safety standards.
Read More →
East Coast Port Launches $45M Electric Truck Push
The Port Authority of New York and New Jersey announced millions in incentives for zero-emission drayage trucks, yard tractors, and new charging hubs near the port.
Read More →
PlusAI Going Public to Fund Autonomous Truck Launch
A SPAC deal could provide PlusAI with up to $300 million as it works toward a 2027 commercial launch of factory-built autonomous trucks.
Read More →
NHTSA Moves to Rewrite Truck Fuel-Economy Rules
The National Highway Traffic Safety Administration says it lacks authority to regulate medium- and heavy-duty truck engines separately from complete vehicles, but the existing standards have not yet been eliminated.
Read More →
Detroit Opens Orders for EPA 2027 Engines
Detroit isn’t starting from scratch to meet EPA 2027 diesel emissions standards. Its Gen 6 DD13 and DD15 engines keep much of today’s platform while updating the fuel and aftertreatment systems.
Read More →
