Colorado · Wyoming · Texas
Truck & trailer repair shop
// Heavy-duty diesel

PACCARengine platform

PACCAR engines are the proprietary platform in Peterbilt and Kenworth. We diagnose the MX-13 and MX-11 with DAVIE/PACCAR service tools, pull aftertreatment codes, and clear DPF and SCR derates across the lineup.

Model numbers — Class 5-8, last ~15 years

PACCAR engines in service

The PACCAR engine model numbers in production and in service across Class 5-8 commercial trucks over roughly the last 15 years. MTG diagnoses and services every one of these.

MX-13

12.9L heavy-duty flagship; the most common PACCAR big-bore in Peterbilt/Kenworth Class 8.

MX-11

10.8L heavy-duty; weight-sensitive and regional Class 8 applications.

How MTG works on PACCAR

Diagnostics, not guesswork

We connect the right brand-specific diagnostic software for PACCAR, pull both active and inactive fault codes, and read live data — soot load, differential pressure, NOx readings, EGT, fuel pressure, charging voltage — before recommending a single part. From forced DPF regens and SCR/DEF derates to no-starts, cooling faults, and air system service, our techs handle it in the shop or on the shoulder.

No overhauls — specialized partners who do

MTG Shops does not perform PACCAR engine overhauls or in-frame / out-of-frame rebuilds in-house. We have quality partners in every market who specialize in PACCAR overhauls. We handle the diagnosis, get the truck to the right specialist, and coordinate the handoff so your downtime stays minimal.

Schedule PACCAR service

Get a bay time and a straight estimate.

(303) 476-3622