Stationed in Walton, KY (I-75 Exits 171 & 175), Kentucky Diesel Repair delivers rapid 24/7 mobile commercial truck, semi-trailer, OEM computer diagnostic, forced DPF/SCR regen, air brake, welding, and commercial tire service across I-75, I-71, I-275 & I-64 from Cincinnati & Covington to Georgetown & Lexington.
Enter an active SAE J1939 fault code (e.g., SPN 3251, SPN 4364, SPN 3719, SPN 111, SPN 641) or roadside symptom (e.g., 30/30 brake chamber, steer tire blowout, 5 mph derate) for instant safe-to-drive guidance and mobile repair ETA.
Submit your mile marker or truck stop location below to log a priority dispatch ticket, or tap 859-910-6000 for immediate voice/SMS dispatch.
Whether you are an independent owner-operator or managing a 200-truck regional fleet, our mobile service trucks bring the shop directly to your breakdown location.
Licensed OEM Cummins INSITE, Detroit DDDL 8, PACCAR DAVIE4, Volvo Premium Tech Tool (PTT), and Bendix ACom Pro. We clear 5 mph DEF/SCR derates, replace NOx sensors and DEF dosers, and execute mobile forced DPF regenerations.
24/7 roadside tire replacement for owner-operators and fleets. We stock new and recap 11R22.5, 295/75R22.5, 11R24.5, 285/75R24.5, and 315/80R22.5 steer, drive, and trailer tires plus hub-piloted steel & aluminum wheels.
Immediate replacement of ruptured Type 30/30 long-stroke spring brake chambers, automatic slack adjusters, Bendix AD-IS/AD-9 air dryers, foot valves, and nylon air lines—including inside the Boone County I-75 Weigh Station.
Overheating on Cut-in-the-Hill or Walton grades? We replace gear-driven water pumps, cracked surge tanks, silicone radiator hoses, Horton fan clutches, serpentine belts, and tensioners on-site with vacuum coolant refill.
High-amperage 12V/24V commercial jump starts, Group 31 AGM battery banks, Delco Remy 39MT starters, Leece-Neville 160A+ alternators, Davco 382 fuel filter changes, and winter diesel de-gelling.
Engine-driven AWS D1.1 structural stick/MIG welding for cracked trailer crossmembers, DOT ICC rear impact guards, kingpin bolster plates, roll-up/swing doors, Jost/Holland landing gear, and hydraulic liftgates.
Because we are headquartered right at the I-75 / I-71 split in Walton, KY, we reach Northern Kentucky's busiest freight bottlenecks faster than anyone else.
| Highway Corridor & Key Exits | Major Truck Stops / Landmarks | Typical Mobile ETA |
|---|---|---|
| I-75 Exits 171 & 175 (Walton, KY) | Flying J Travel Center (Exit 171), TA Travel Center (Exit 175), KY-14 / KY-338 | 15–20 Minutes |
| I-75 Mile Marker 168.5 Northbound | Boone County KYTC / CVSA Inspection Weigh Station (On-Site OOS Releases) | 15–25 Minutes |
| I-75 Exits 178–184 (Florence / Richwood) | Mt. Zion Rd (Exit 178), US-42 (Exit 180), KY-18 Burlington Pike (Exit 181), Turfway | 20–30 Minutes |
| I-75 Exits 185–191 (Erlanger / Covington) | I-275 Interchange, Cut-in-the-Hill 5% Grade, Brent Spence Bridge Approach | 25–35 Minutes |
| I-75 Exits 154–166 (Crittenden / Dry Ridge) | Crittenden (Exit 166), Dry Ridge (Exit 159), Williamstown (Exit 154) | 20–30 Minutes |
| I-71 Exits 77–28 (Verona / Sparta / Carrollton) | I-71/I-75 Split (Exit 77), Glencoe (Exit 62), Love's & Pilot Sparta/Warsaw (Exit 57), Carrollton (Exit 44) | 25–45 Minutes |
| I-75 Exits 115–144 (Corinth / Georgetown / Lexington) | Corinth (Exit 144), Sadieville (Exit 136), Pilot/Love's Georgetown (Exits 126/129), Lexington North | 35–55 Minutes |
Our service trucks work day and night in every weather condition—keeping owner-operators and commercial fleets moving safely.
Browse our library of 50 field-tested technical articles covering Northern Kentucky breakdown scenarios.
Why a Cummins X15 triggers a 5 mph SCR efficiency derate climbing the Walton I-75/I-71 split, how our mobile Cummins INSITE laptop distinguishes crystallized DEF doser valves from failed outlet NOx sensors, and how we clear the derate on-site.
What happens when Kentucky Vehicle Enforcement places your tractor-trailer Out-of-Service (OOS) at the I-75 MM 168 Boone County scales, CVSA 20% defective brake rules, and how our mobile techs replace 30/30 chambers and automatic slack adjusters right on the scale lot.
When a Freightliner Cascadia with a Detroit DD15 stalls or refuses to restart after a 30-minute break at the Sparta Love's Truck Stop, air intrusion on the suction side of the Davco Fuel Pro 485 or a sheared low-pressure pump drive is usually the culprit.
How fast mobile tire replacement works on the shoulder of I-75 and I-71 in Northern Kentucky, stocked sizes (11R22.5, 295/75R22.5, 11R24.5, 285/75R24.5, 315/80R22.5), hub-piloted lug torque procedures, and protecting ABS tone rings during a blowout.
Why PACCAR MX-13 variable-speed electromagnetic water pumps and dual serpentine belts fail under heavy load climbing I-75 in Grant County, and how we replace the water pump, idler pulleys, and OAT red coolant on the roadside.
How combustion pressure leaking past copper/stainless injector sleeves pressurizes the surge tank on Volvo VNL and Mack Anthem trucks, hydrocarbon block testing, and roadside hard-start triage.
