Trucks We Service

Cummins Service & Repair.

Dealer-level Cummins diesel repair in metro Atlanta X15, X12, L9, and B6.7 across all truck platforms. In-frame overhauls, aftertreatment, 24/7 roadside.

In-Frame

& Overhaul

OEM Tools

Diagnostics

NAPA

Warranty

Aftertreatment

Compliant

Mobile

Roadside

Cummins Specialists

X15 to B6.7 — Cummins Diesel Specialists

Cummins powers trucks from nearly every OEM, so we see the X15 (ISX), X12, L9 (ISL), and B6.7 (ISB) across the board. With Cummins INSITE diagnostics we go straight to the fault injector, turbo, EGR, or aftertreatment and handle everything from a single cup seal to a full in-frame overhaul.

Whatever chassis it’s in, if it’s Cummins-powered, we service it.

Who We Serve

Cummins Models & Platforms

We service Cummins engines in any truck platform highway, vocational, bus, and RV.

X15 / ISX

The heavy-haul workhorse across most OEMs.

X12 / L9

Lighter heavy-duty and vocational power.

B6.7 / ISB

Medium-duty and vocational diesel.

Systems & Components

What We Work On

In-frame & complete Cummins overhauls

INSITE diagnostics & fault analysis

Injector & injector-cup service

Turbo / VGT actuator service

EGR cooler & valve repair

DPF / SCR / DEF aftertreatment

Coolant, oil-consumption & blow-by diagnosis

Roadside no-start & derate triage

Common Cummins Issues We Fix

Known Failure Points

EGR cooler failures

DEF dosing & quality-sensor faults

Injector & cup-seal leaks

VGT turbo actuator faults

Aftertreatment regen derates

Coolant-in-oil / oil-consumption issues

Facility & Capability

Dealer-Level, No Dealer Wait

We run manufacturer-grade diagnostics and heavy-duty bays sized for Class 5–8 work so your Cummins gets a dealer-quality repair without the dealership wait time or markup.

Manufacturer-grade diagnostic laptops & procedures

Mobile service units for on-site & roadside work

Auburn · Fayetteville · Lawrenceville shops

Heavy-duty lifts & engine bays for Class 5–8

Quality OEM-matched parts

24/7 roadside diesel response

Certifications

Credentials Behind the Work

NAPA Truck Service Center

Qualifying repairs carry a 12-month / unlimited-mile warranty honored at 1,300+ centers nationwide.

ASE-Certified Technicians

Diesel and medium/heavy-truck ASE credentials across our technician teams. *(confirm current cert roster)*

Factory-Grade Diagnostics

Manufacturer-level scan tools and repair procedures for all major OEM platforms.

Emissions-Compliant Work

Aftertreatment service performed to EPA/CARB standards — no illegal deletes or tampering.

Fleet Accounts

Why Cummins Fleets Run With Myles

Priority Scheduling

Fleet accounts move to the front of the bay queue and get reserved slots for scheduled PM cycles.

Per-Asset Service History

Every unit gets a digital service file — VIN, mileage, parts, and labor tracked for warranty and resale.

Uptime Focus

We batch and stagger service to keep the maximum number of trucks earning while the rest are in the shop.

Fleet Billing

Consolidated invoicing, PO workflows, and net terms for approved accounts — one statement, not a stack.

Cummins service is based at our Auburn, Fayetteville, and Lawrenceville shops, reaching roughly 150 miles across metro Atlanta and the I-85 / I-20 / I-16 corridors, with mobile and 24/7 roadside support. (Confirm exact radius for your locations.)

FAQ

Cummins — Common Questions

Which Cummins engines do you service?

We service all major commercial Cummins engine platforms, including the X15, ISX15, ISL, ISB 6.7, and L9 diesel engines.

Yes, we perform complete in-frame engine overhauls for Cummins engines to rebuild power and reliability while keeping costs down.

Yes, using advanced Cummins diagnostic software, we quickly identify fault codes causing derate conditions, complete repairs, and reset the ECM.

Cummins Down? We'll Get It Running.

24/7 dispatch. Five Georgia locations. Certified technicians ready now.