The Class 6-8 trucking aftermarket was a $30.4 billion industry last year that included both parts and service. The 2018 Fact Book offers a snapshot of the aftermarket through statistics.
2018 Fact Book: Parts and Service

For-hire and private fleets account for half of aftermarket parts demand of Class 6-8 trucks and trailers.

53% of aftermarket parts demand is attributed to fleets with over 100 trucks.

The dealer is the preferred outlet for parts with 49% of aftermarket demand.

LTL carriers reported the highest R&M costs again in 2016, reflecting the pressures of more frequent pickup and delivery and the growing influence of e-commerce. This marks a return to the historical norm.

Fleets with fewer than five power units paid, on average, 18.5 cents per mile on R&M in 2018, the highest rate among fleet categories. Larger fleets, on the other hand, were faced with more capacity when freight demand softened in 2016, which resulted in motor carriers with 250 or more power units paying the least R&M.

Over the course of seven years, the lifecycle excess variable cost equates to $34,379 per truck, which runs into the millions when looking at a fleet with 100 or more trucks.

