Trucking parts and labor expenses dropped during the second quarter of 2023, report the American Trucking Associations’ Technology & Maintenance Council and asset service management system provider Decisiv.
Heavy Duty Parts and Labor Costs Dropped in Q2
A benchmarking report from TMC and Decisiv reveals good news for fleets as heavy-duty parts and labor costs dropped in the second quarter of 2023.

After an extended period of cost increases, the combined parts and labor costs for the top 25 VMRS codes fell 1.3% in the second quarter pf 2023 according to a new benchmarking report from TMC and Decisiv.
Photo: Jim Park
“With rising build rates for new equipment and less mileage reducing the need to operate aging trucks, fleets are finally seeing a definite improvement in parts and labor costs,” said Decisiv President and CEO Dick Hyatt about the data in the latest Decisiv/TMC North American Service Event Benchmark Report.
“The data that Decisiv collects and analyzes for TMC on Vehicle Maintenance Reporting Standard system level codes points to a return to normalized trade cycles and more predictable service and repair costs," Hyatt said. "Along with greater stability, the highly detailed data and reporting enabled by Decisiv SRM allows fleets and service providers to focus on ways to continue to drive down expenses.”
A Long-Awaited Decrease in Service Costs
After an extended period of cost increases, the combined parts and labor costs for the top 25 VMRS codes fell 1.3% in the second quarter from the first. Labor costs dropped for the first time in the past year, and parts costs were down for the second quarter in a row.
On a year-over-year basis, combined parts and labor costs rose only 5.57% in the second quarter of this year compared with the same period last year — far slower than the 15% increase in costs seen in 2022.
“After many months of rapidly increasing parts and labor costs, we are pleased to see this positive trend in the maintenance expense data,” said TMC Executive Director Robert Braswell.
While economic and inflation pressures are still driving parts prices and labor rates to comparatively high levels, OEMs are effectively managing fewer supply chain disruptions that had negatively impacted production capacity.
With the steady elimination of pent-up demand, fleets are finally taking delivery of new, less repair-intensive trucks. The influx of replacement vehicles and lower freight volumes are decreasing the demand for service and repair activity and consequently lowering parts and labor costs.
Operational Changes Impacting Shop Operations
The data reflecting lower parts and labor expenses in this quarter’s Decisiv TMC Benchmark Report indicated how a number of factors affected service activity, the report said. These factors impacted each other and fleet service operations:
Changes in mileage related to freight volumes.
The effect of newer versus aging trucks.
The ongoing stabilization of the supply chain.
Looking ahead, there is a growing expectation that service and repair costs will find a new equilibrium and settle into a more predictable cycle in line with what was experienced in the past.
Data on the top 10 VMRS code categories shows that engines and related systems accounted for the largest percentage of all costs in the second quarter. In total, powerplant (35.9%), exhaust (12.9%) cooling (6.1%) and fuel systems (5.3%) equaled 60.2% of costs during the quarter.
The Decisiv/TMC North American Service Event Benchmark Reports are generated using data from the Decisiv SRM platform on service and repair events for more than 7 million commercial assets operating across the U.S. and Canada.
ATA’s Technology & Maintenance Council issues the reports to its fleet members. The reports are organized based on the council’s Vehicle Maintenance Reporting Standards sorted by VMRS-coded vehicle systems and geographic location.
TMC fleet members will receive the report via email.
More Maintenance

Fullbay Report: Heavy-Duty Shop Revenue Up, Rates Rising, but Shops Still Short on Techs
Strong growth across the heavy-duty repair sector is being tempered by workforce shortages and an aging technician pipeline.
Read More →
How Mack Sees the Next Era of Fleet Intelligence
Telematics has evolved from simple vehicle tracking into a connected service platform that can help fleets boost uptime, improve specifications, and move toward predictive maintenance. Mack executives say AI is now giving fleets a way to turn all that vehicle data into faster, smarter decisions.
Read More →
Clarios Expands Battery Monitoring Into Subscription Service with Battery Manager Pro
A new battery-monitoring-as-a-service program from Clarios Connected Services uses predictive analytics and automatic replacement to reduce downtime and smooth fleet maintenance costs.
Read More →
SAF-Holland’s BrakeSight Aims to Take the Guesswork Out of Air Disc Brake Maintenance
New Haldex sensor technology from SAF-Holland integrates with telematics systems to give fleets continuous insight into air disc brake condition.
Read More →
Vanair Introduces Solar, Battery Power Ecosystem for Class 8 Trucks
The company’s expanded EPEQ ecosystem includes flexible solar panels, lithium batteries, hydraulic power systems, and a portable fast charger for electric trucks.
Read More →
Mitchell 1 Targets Technician Search Challenges With New Fleet Feature
TruckSeries’ new Unit Number Search allows fleet technicians to access repair data using the identifier they know best — the truck’s unit number.
Read More →
Truck Maintenance Costs Ease Slightly, but Long-Term Trend Still Rising
Benchmark data from Decisiv and TMC shows repair expenses still climbing, but fleets are improving efficiency with digital tools.
Read More →
New PC-12 Diesel Engine Oil Category Nears Completion: What Fleets Should Know
The new heavy-duty engine oil category, PC-12, is nearing the finish line. Here’s what fleet maintenance managers should know before it arrives in 2027.
Read More →
Advanced Commercial Vehicle Diagnostic Strategies
Learn how to diagnose complex electrical and drivability issues with confidence using the Autel MS909CV, a digital storage oscilloscope, and real-world engine data in this hands-on virtual introduction to advanced commercial vehicle diagnostics.
Read More →
Smarter Maintenance Strategies to Keep Trucks Rolling
In today’s cost-conscious market, fleets are finding new ways to get more value from every truck on the road. See how smarter maintenance strategies can boost uptime, control costs and drive stronger long-term returns.
Read More →
