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Heavy-Duty Diesel Specialists • Family-Owned Since 2002 • The Most Reviewed Local Diesel Repair Shop

International Truck Repair in Kingston

Call (360) 638-0044

International Truck Repair in Kingston, WA and the Surrounding Areas

Your International Deserves More Than Just Another Repair Shop

You’ve got a job scheduled Wednesday, and your International is sitting in the yard throwing a code you can’t clear. Maybe it’s a DuraStar hauling for a delivery run, a ProStar pulling a loaded trailer, or an MV Series that suddenly won’t build power up a grade. Every hour it sits, you feel that knot tighten — the one that shows up when the truck that pays your bills decides it’s done for the day. You’ve been to the shop that plugged in a scanner, read you an emissions code, and handed you a bill without fixing a thing.

That’s not how it works at Flying Wrench Services, 31516 Commercial Ave NE, Kingston, WA 98346. As Heavy-Duty Diesel Specialists, we’ve been working on International trucks — MaxxForce and Cummins-powered alike — since 2002. We know these engines, we know where they fail, and we know what it costs you when they’re down. You’ll get a real diagnosis, not a guess dressed up as one.

Why International Owners in Kingston Choose Flying Wrench Services

We Speak Your Language, Not Mechanic Jargon

You know your truck. You don’t need someone talking down to you or burying the real problem under a page of filler line items. When you drop off your International, we tell you what’s actually wrong in plain terms and let you make the call.

  • A clear explanation of the fault code and what’s causing it
  • A written estimate before we turn a wrench
  • Straight answers on what’s urgent versus what can wait
  • A realistic timeline so you can plan your jobs around it

You’ll talk to people who understand common rail, EGR, and DPF systems because they work on them every day. No lectures, no runaround — a working conversation between two people who respect the machine.

International Expertise Without Dealership Pricing

The dealership wanted a two-week wait just to look at it, and half the time they farm the diesel work out anyway. We handle it in-house with the diagnostic tools these trucks demand.

  • J-Pro and TEXA diagnostic equipment for accurate fault reads
  • Hands-on experience with MaxxForce and Cummins-powered Internationals
  • Turnaround measured in days, not weeks
  • Fair labor rates priced for working people

As the top-rated heavy-duty equipment repair shop in the area, we’ve built our name on getting big trucks back to work fast. That’s the whole point of owning one.

Transparency That Rebuilds Trust

You’ve been burned before — the three-page invoice, the surprise add-ons, the part you never asked about. We do the opposite.

  • Written estimates you approve before work begins
  • No upselling on parts you didn’t come in for
  • We call you before changing scope on a repair
  • The old parts back if you want to see them

As the most reviewed local diesel repair shop, we earned that reputation one honest invoice at a time. You come back because you trust us, not because you got trapped.

Comprehensive International Repair Services in Kingston

International Maintenance Services

  • Scheduled maintenance and fluid service intervals
  • Belt and hose inspection and replacement
  • Coolant flushes and cooling system service
  • DOT-ready multipoint inspections

Staying ahead of maintenance is the cheapest insurance you’ll ever buy on a work truck. Our scheduled maintenance and fluids program keeps your International on the road and off the tow hook.

International Diagnostic and Repair Services

  • Engine repair and overhaul on MaxxForce and Cummins power
  • Fuel system and injector service
  • Transmission and clutch repair
  • Brake, air brake, and suspension repair
  • Electrical diagnostics and wiring repair

When your International loses power, blows smoke, or throws a code you can’t clear, we chase the root cause instead of parts-swapping on your dime. Our diesel engine diagnostics get you a real answer the first time.

International Specialty Services

  • EGR valve repair and cleaning
  • DPF cleaning and replacement
  • MaxxForce emissions system troubleshooting
  • Mobile on-site repair for trucks that can’t move

The emissions systems on modern Internationals — especially the MaxxForce line — are where a lot of shops throw their hands up. We work through EGR and DPF faults methodically so you’re not chasing the same regen problem month after month.

Model-Specific International Expertise

International DuraStar Service and Repair

The DuraStar (4000 series) is a medium-duty workhorse for delivery, box, and vocational fleets. Common headaches include MaxxForce EGR and DPF faults, cooling system leaks, and injector wear. We diagnose the emissions system properly and keep these trucks moving through the tight route schedules they’re built for.

International ProStar Service and Repair

The ProStar is a long-haul Class 8 tractor you’ll find pulling freight all over the region. Owners come to us for turbo issues, fuel system troubleshooting, aftertreatment faults, and driveline repair. We know where the MaxxForce and Cummins versions differ and diagnose accordingly.

International LoneStar Service and Repair

The LoneStar is International’s flagship over-the-road tractor, and its owners take pride in it. We handle heavy engine work, cooling system repair, air brake service, and electrical diagnostics — keeping the miles rolling and the downtime short.

International MV Series Service and Repair

The MV Series is the modern medium-duty replacement for the DuraStar, popular with municipal and delivery fleets. We service the Cummins B6.7 power common in these trucks, along with brakes, suspension, and emissions systems, keeping regional fleets on schedule.

International HX Series Service and Repair

The HX is International’s severe-service vocational truck — dump, mixer, and heavy-haul applications. These trucks live hard, so we focus on driveline, suspension, cooling, and hydraulic-adjacent repairs that keep them producing on the job site.

Common Issues Across International Models

International trucks are tough, but certain patterns show up again and again — and we know exactly where to look.

  • MaxxForce EGR and DPF faults: The emissions system on MaxxForce engines is notorious for clogging and regen trouble; we clean, repair, and reprogram to restore normal operation.
  • Turbocharger failures: Loss of power and excessive smoke often trace to a failing turbo or actuator, which we test and replace with quality components.
  • Fuel injector and high-pressure fuel issues: Rough idle, hard starts, and poor economy frequently come back to the injection system, which we diagnose before replacing anything.
  • Cooling system leaks and overheating: Radiators, water pumps, and EGR coolers fail under load; we pressure-test and repair before you cook a head.
  • Electrical and sensor faults: Intermittent codes and no-start conditions often come down to wiring and sensors, which we trace with proper diagnostic gear.
  • Air brake and suspension wear: Heavy loads take a toll; we inspect and repair air systems and suspension to keep you DOT-legal and safe.

The Flying Wrench Services Difference for International Owners

You want one shop you can call and know it’ll be handled right. That’s what we’ve built since 2002.

  • Respects your time with turnaround measured in days, not weeks
  • Respects your knowledge by working with you, not talking down to you
  • Respects your wallet with written estimates and no surprise add-ons
  • Respects your truck with diesel-specific diagnostics and quality parts

When your International is running, you’re making money and providing for your family. That’s the whole reason we do this — to keep your truck earning and keep you off the couch.

Service Areas We Serve

From our shop in Kingston, we handle International truck repair for owners and fleets across the region.

  • Kingston — our home base and full-service shop
  • Poulsbo — a short haul north for contractors and fleets
  • Silverdale — commercial and delivery truck support

Schedule Your International Service Today in Kingston, WA

If your International is throwing a code, losing power, or just overdue for service, call the shop that knows these trucks. At Flying Wrench Services, you’ll get a straight diagnosis, a written estimate, and a truck back on the road fast. Find us at 31516 Commercial Ave NE, Kingston, WA 98346, or see what other diesel owners say on our reviews page.

Call Flying Wrench Services at (360) 638-0044 to get your International scheduled. Keep the truck earning — that’s what it was built to do.

Frequently Asked Questions about International Truck Repair

Should I take my International to the dealership or an independent diesel shop?

An independent diesel shop like ours gets you real diagnostic work without the two-week wait and inflated invoice the dealership hands you. We run J-Pro and TEXA equipment, handle MaxxForce and Cummins power in-house, and turn trucks around in days. You get dealership-level capability at a working man’s labor rate.
On MaxxForce-powered Internationals, the EGR and DPF systems need regular attention because they’re prone to clogging and regen trouble under real-world loads. We recommend inspecting the emissions system at every major service interval and cleaning the DPF before it forces you into limp mode. Staying ahead of it prevents the far more expensive failures down the road.
The most frequent trouble we see is MaxxForce emissions faults — clogged EGR coolers, DPF regen failures, and the codes that come with them. Turbo and injection issues run a close second. We diagnose the root cause with proper equipment instead of throwing parts at it, which saves you money and repeat visits.
We use quality parts matched to your International and its application, choosing OEM where it matters and proven aftermarket where it makes sense for cost and availability. For emissions, fuel, and driveline components on a work truck, we prioritize durability. We’ll always tell you what we’re installing and why before we do it.
In most cases repairing your International is far cheaper than starting over with a new truck payment, especially when the frame and driveline are sound. We give you an honest assessment of what it needs and what it’s worth so you can make a smart call. Many older Internationals have plenty of productive miles left with the right maintenance.

International Truck Repair

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