What's Behind the August Order Slowdown
The August pullback reflects typical summer seasonality, the close of the 2026 order season, and the tail end of the EPA 2027 NOx pre-buy as OEMs run out of surcharge-free 2026 build slots. With most 2026 slots full and 2027 boards not yet open, analysts expect September to mark the start of real order activity under the new EPA 2027 NOx compliance rules, with fleets weighing NCP-supported current engines (roughly $6,000–$7,000 per engine) against fully compliant 2027 technology (an $8,000–$12,000 OEM upcharge).
Preliminary North American net orders for Class 8 truck slipped in August as the 2026 order season closed out and the rush to beat EPA’s upcoming emissions regulations reached its final stretch, according to data from FTR and ACT Research.
FTR pegged net orders at 18,200 units in August, down 19% from July but still up 42% compared to a year ago. However, the drop isn’t a sign of weakening demand—the firm attributed the drop mainly to typical summer seasonality, the close of the 2026 order season, and the tail end of the EPA 2027 NOx pre-buy.
FTR
Some OEMs may have run out of 2026 order slots by mid-August, FTR noted, while next year’s boards haven’t opened yet. With most surcharge-free model-year 2026 engine build slots now full, FTR believes the pre-buy rush has largely run its course and expects September to offer real order activity under the new 2027 NOx compliance pathways.
Even with the monthly pullback, 2026 orders remain ahead of last year’s pace—up 111% on a year-to-date basis through August. Orders from September 2025 through August 2026 were 39% higher than the prior cycle, with total orders over the past 12 months reaching 350,677 units.
FTR said the industry’s focus is now on working through backlog execution, setting model-year 2027 pricing and build slotting, and how fleets will navigate between noncompliance penalty (NCP)-supported current-generation engines and fully compliant EPA 2027 technology.
The cost breakdown: NCPs add on roughly $6,000 to $7,000 per engine (a cost likely passed to fleets), versus an $8,000 to $12,000 OEM upcharge for a fully compliant 2027 engine.
“The main issue is incremental cost,” said Dan Moyer, senior analyst, commercial vehicles at FTR. OEMs are split on strategy: some will offer both compliant and NCP-supported engines, while at least one manufacturer will offer only the fully compliant option.
Moyer cautioned that EPA’s July proposal isn’t final, as NCP levels and other provisions could still shift. Moyer added that August marks the closing out of both the order season and the pre-buy, with September opening a new phase shaped by engine choice, pricing, build timing, and yet-to-be-finalized EPA's 2027 rule.
ACT Research’s data told a similar story, with preliminary August orders at 16,800 units, up 31% year over year, due to what it noted as “easy, tariff, and carrier profitability impacted comps at this time last year.”
It pointed to oversubscribed 2026 backlogs–roughly 35,000 units beyond available second-half build capacity as of July–and a seasonal lull that normally precedes the September order-board opening.
"Demand for new equipment remains strong, supported by meaningfully improved freight rates," said Carter Vieth, research analyst at ACT Research. "While largely driven by severe contractions in the driver supply earlier this year, the Montgomery SCOTUS decision, stricter ELD/HOS rule enforcement, and new carrier registration rules have also added to supply constraints and rate improvement through 2026.”
A rebound in U.S. manufacturing and buildout activity tied to data centers and utilities is offering modest support on the demand side, Vieth added, even as softness in housing and uneven consumer spending weigh on freight volumes. He also pointed to second-quarter earnings from publicly traded truckload carriers, which showed aggregate net profit margins at their highest level in nearly three years.
Medium-duty demand also stayed strong, with ACT reporting Classes 5-7 orders climbing 37% year over year to 20,000 units in August. It’s the fourth straight month above the 20,000-unit mark, a notable step up from roughly 16,000 units per month at the start of 2026. Analysts see part of that increase as customers and dealers getting ahead of 2027 regulatory changes, along with broader economic resilience despite continued inflationary pressure.
