International Truck Repair Service
International trucks do tough work in the mountains—long grades, big temperature swings, and stop-and-go job sites. At Britt’s Diesel, we keep ProStar, LT, DuraStar/WorkStar, MV, HV, and HX models earning with test-first diagnostics, spec-correct parts, and clear communication. Whether you’re running regional haul on 395 or vocational routes in the Owens Valley, our plan is simple: fix the root cause, document it clearly, and get you back on schedule.
Diagnostics & Common Repairs
We don’t guess and replace. Our workflow verifies the fault before a wrench turns:
- Electrical/CAN-bus diagnostics: voltage-drop/ground checks, connector pin-fit and corrosion, module communication faults (MID/FMI), parasitic draw.
- Aftertreatment/regen issues: DPF/DEF/SCR faults, DOC/DPF condition, NOx/DP/temp sensors, dosing quality and wiring, forced/stationary regens.
- Air & fuel system integrity: CAC/boost leaks, VGT/actuator issues, fuel pressure/restriction and injector return tests.
- Cooling & HVAC: overheating on grade, fan control, heater core/blend doors, CAC efficiency.
- Brakes/ABS & air system: chambers, valves, dryers, lines, sensors/toner rings.
- Steering/suspension & driveline: u-joints, carrier bearings, wheel ends, seals, ride-height and alignment.
Repairs are validated with live-data logs, pressure/flow tests, smoke testing, and a loaded road test—so the fix sticks.
Engines & Powertrains We Service
International chassis arrive with several engine families—we support them all and coordinate engine + chassis in one plan.
- Navistar: A26, N13, legacy MaxxForce (DT/9/10/11/13/7)
- Cummins: B6.7, L9, X12/X15 (where spec’d)
- Transmissions: Eaton Fuller (manual/UltraShift/Automated), Allison automatics
We also handle clutch/flywheel, PTO setups, and calibration/updates so powertrain and aftertreatment play nicely together.
Major Repairs: Engines & Transmissions
When a repair goes beyond routine service, we scope the job around your routes and deadlines.
Engine Overhauls, In-Frame/Out-of-Frame & Replacements
- Failure confirmation: compression/leak-down, injector balance/return, oil analysis, boost/cooling integrity.
- In-frame/out-of-frame work: cylinder head, liners/pistons, bearings, oil pump, timing components, full gasket/seal kits, overhead set to spec.
- Aftertreatment integration: DPF clean/replace, sensor calibration, EGR/DEF checks to prevent post-overhaul derates.
- Reman/long-block options when economics or downtime favor a swap.
- Final validation: hot/cold starts, leak/boost checks, datalogs, and loaded road tests.
Transmissions (Eaton/Allison)
- Actuator/solenoid/TCM diagnostics, software updates & adaptations.
- Manual gearbox service: synchronizers, bearings, seals.
- Clutch & flywheel replacement plus driveline refresh (u-joints, carrier bearings, seals) to protect new or rebuilt units.
PM Programs & Fleet Support
Eastern Sierra conditions punish cooling and aftertreatment—PM matters. We tailor intervals to duty cycle, terrain, and climate.
- Engine oil/filters matched to use case
- Fuel filtration & water separator service
- Coolant testing/exchange; hose/clamp and CAC efficiency checks
- Transmission/axle/PTO fluids to spec
- Brake/air-system and wheel-end inspections; torque/mount audits
- Battery/charging load tests and electrical integrity checks
Fleet customers get priority bays, VIN-level service history, PM calendars, consolidated invoicing, and proactive advisories to reduce cost-per-mile.
Inspection Readiness (BIT/DOT)
We prep International trucks to pass the first time—lighting, brakes, tires, leaks, steering/suspension—and provide clean documentation for audits and resale records. If we find a deficiency, we correct it fast.
Book reliable International service with Britt’s Diesel—brand-savvy diagnostics, durable repairs, and documentation fleets trust.
Local Shop
Skilled Mechanics
Quality Equipment
Benefits of Service
Root-cause diagnostics for A26, N13/MaxxForce and Cummins B6.7/L9/X15, plus Eaton/Allison expertise. OEM-spec parts, clear estimates, and quick turnarounds tuned for Highway 395. Leave with BIT/DOT-ready docs, VIN-level records, and fleet PM calendars—with priority bays when needed.
- International-expert diagnostics
- Fast turnarounds / Less downtime
- Quality OEM-spec parts
- BIT/DOT ready
- Fleet PM + records
International Trucks Service FAQs
Quick answers about International service at Britt’s Diesel—models we cover (ProStar/LT, DuraStar/WorkStar, MV/HV/HX), engines (A26, MaxxForce, Cummins B6.7/L9/X15), diagnostics, major repairs, PM, and BIT/DOT compliance.
ProStar, LT, DuraStar/WorkStar, MV, HV, HX, and vocational builds. Engines: Navistar A26, N13/MaxxForce (DT/9/10/11/13/7) plus Cummins B6.7, L9, X12/X15.
A test-first workflow: live-data logs, voltage-drop/ground checks, fuel pressure & restriction tests, CAC/boost leak and smoke testing, NOx/DP/temp sensor and DEF dosing verification, then a loaded road test.
Yes—in-frame/out-of-frame overhauls, head/liners/pistons/bearings, timing sets, and reman long-block replacements. Transmissions (Eaton/Allison): clutch/flywheel, actuator/solenoid/TCM work, calibrations, and adaptations—finished with spec road tests.
Yes. We run duty-cycle PM programs: engine oil/filters, fuel filtration & water separator, coolant testing/exchange, CAC efficiency checks, trans/axle/PTO fluids, brake/air-system & wheel-end inspections, and battery/charging load tests—plus VIN-level PM calendars and priority scheduling for fleets.
Absolutely. We provide priority bays, VIN-level history per unit, PM calendars, consolidated invoicing, standardized parts lists, and BIT/DOT-ready documentation—all designed to cut downtime and cost-per-mile across your International fleet.