Heavy-Duty parts inflation slows to .4% nationwide, masking steep regional swings

Heavy-duty truck parts prices are telling two different stories across the country, as distributor prices slip below year-ago levels in some regions while climbing steadily in others. The good news: The inflation that gripped the heavy parts market over the last two years has cooled, with national year-over-year price growth slowing to 0.4% in October.

According to the October 2026 Heavy-Duty Price Index (HDPI) released Monday by online marketplace FinditParts, national parts prices are up 5.9% compared to January 2024 levels. However, beneath that national average lies a complex landscape of divergent pricing trends between parts distributors and manufacturers, as well as wide gaps across U.S. geographic regions.

The October data highlights a growing disconnect between what manufacturers charge and what distributors list on their shelves.

While manufacturer prices climbed to a new index high of 106.7 (representing a 2.6% increase year-over-year), distributor prices slipped into a deflationary trend, sitting 1.4% below year-ago levels.

This story was originally published by CCJ. Read the full story at CCJ →