International ProStarrepair & diagnostics
The International ProStar is one of the most common OTR tractors on the road, running MaxxForce 13 and Cummins ISX engines. ProStar drivers see frequent aftertreatment and EGR faults — we read the code, find the root cause, and get the truck back in service.
Shop & mobile service for International ProStar
Connect the right laptop, pull active and inactive codes, and read live data before recommending parts.
Forced (parked) regens, SCR/DEF dosing faults, NOx sensor diagnosis, and derate clearing.
Slack adjusters, chambers, relay valves, drums, linings, and ABS blink-code reading.
Alternators, batteries, parasitic draws, 7-way, and crank/no-start diagnosis.
Air ride ride height, air bags, leveling valves, and walking-beam service.
Preventative maintenance A/B/C and annual DOT inspections that leave you compliant.
Commercial tire sales, mounting, balancing, wheel seals, bearings, and hubs.
Lights, brakes, suspension, landing gear, doors, and reefer refrigeration troubleshooting.
The faults we see most
DPF restriction, regen aborts, and EGR derates on the ProStar's MaxxForce platform.
Coolant loss and check engine lights traced to the EGR cooler.
5 mph derates that won't clear until the aftertreatment fault is fixed and verified.
International ProStar engine platforms
We connect the right diagnostic laptop for each engine platform International ProStar runs, pull the fault codes, and read live data before recommending a single part. Below are the engines we service on International ProStar.
Read the diagnostic path
MTG Shops does not perform engine overhauls or major component rebuilds in-house. We have quality partners in every market who specialize in International ProStar overhauls and in-frame / out-of-frame rebuilds. We handle the diagnosis, get the truck to the right specialist, and coordinate the handoff. You get an honest answer about what we fix and what goes to a trusted partner.
Get a bay time and a straight estimate.