Black silhouette of a cargo truck.

Built for Diesel Work That Can’t Afford Downtime


I&T Diesel Repair proudly serves Green Bay, WI, providing professional diesel repair services for heavy- to medium-duty trucks and trailers and commercial fleets that depend on consistent performance. As a family-owned and operated business, we deliver dependable solutions backed by skilled technicians and quality workmanship. Call (920) 337-6364 today to request a free estimate and keep your diesel equipment running strong.

A Diesel Repair Shop Focused on Trucks and Fleet Service

I&T Diesel Repair is committed to supporting working trucks and fleet vehicles throughout Green Bay, WI. Our shop is equipped to handle a wide range of diesel repair and maintenance needs, from routine service to complex mechanical issues. With technicians bringing over 10 years of hands-on experience, we provide accurate diagnostics and reliable repairs designed to reduce downtime.

We are fully licensed and insured, giving our customers confidence that every service meets professional and industry standards.

Complete Diesel Engine and Truck Repair Services

Our team offers comprehensive diesel repair solutions to support long-term vehicle performance and safety. We work on essential systems that keep trucks operating efficiently under demanding conditions.

Black and white icon of a container and a drop of liquid.

Diesel Engine Repair and Fuel System Service

We diagnose and repair diesel engine problems such as power loss, overheating, hard starts, and excessive exhaust. Services include fuel system repairs involving injectors, pumps, and filters; turbocharger repair or replacement; cooling system repairs; and DPF and EGR cleaning to support emissions performance.

Truck repair service icon. Truck above wrench.

Advanced Diagnostics and Electrical System Repairs

Modern diesel vehicles rely on complex electronic systems. I&T Diesel Repair uses advanced diagnostic equipment to identify electrical issues, sensor failures, and communication faults. Accurate diagnostics allow us to recommend targeted repairs that restore performance quickly and efficiently.

Preventive Maintenance Designed to Reduce Downtime

Routine maintenance plays a critical role in extending the lifespan of diesel trucks and preventing unexpected breakdowns. I&T Diesel Repair offers preventive maintenance services tailored to vehicle usage and operating conditions in Green Bay, WI.

Truck carrying gears.

Maintenance Services That Support Long-Term Reliability

Our maintenance solutions include oil changes, brake service, transmission maintenance, cooling system inspections, AC and heating repair, and overall vehicle safety checks. Preventive care helps protect your investment and supports dependable day-to-day operation.

Trailer Repairs, Welding, and Fabrication Services

In addition to truck service, I&T Diesel Repair provides trailer repairs and basic welding and fabrication for diesel vehicles. These services help maintain safety, structural integrity, and compliance with D.O.T. regulations.

Front view of a black and white truck illustration.

D.O.T. Compliant Trailer Repair Solutions

We service trailer brakes, lighting systems, wiring, and structural components. Our welding and fabrication services address common wear and damage while ensuring durability and regulatory compliance.

Breakdown Support and Towing Coordination


When unexpected issues occur, quick action matters. I&T Diesel Repair partners with a trusted local truck towing company to assist drivers and fleet operators during breakdown situations. Once your vehicle arrives at our shop, our team moves promptly to diagnose the issue and outline repair solutions.

Why Choose I&T Diesel Repair in Green Bay, WI


Customers choose I&T Diesel Repair for our experience, transparency, and commitment to quality service.

What Sets Us Apart

A document with a dollar symbol and calculator, suggesting financial calculations.

Free estimates available.

Three figures with three stars above them.

Technicians with 10+ years of diesel experience.

Badge with a checkmark, symbolizing quality or approval.

Licensed and insured diesel repair shop.

Diagram of six people connected in a circle, with a dot in the center.

Family-owned and operated.

Outline of a flatbed truck.

Medium to Heavy-duty trucks

and fleet-focused.

Wrench and screwdriver crossed, symbolizing settings or repair.

D.O.T.-compliant repairs and services.

Quality Service at Lower Cost

Serving Green Bay and Surrounding Areas


Brown County, WI

  • Allouez
  • Ashwaubenon
  • Bellevue
  • De Pere
  • Denmark
  • Glenmore
  • Green Bay
  • Greenleaf
  • Hobart
  • Howard
  • Humboldt
  • New Franken
  • Oneida
  • Pulaski
  • Suamico
  • Wrightstown

Door County, WI

  • Baileys Harbor
  • Brussels
  • Egg Harbor
  • Ellison Bay
  • Ephraim
  • Fish Creek
  • Forestville
  • Maplewood
  • Sister Bay
  • Sturgeon Bay
  • Washington Island

Kewaunee County, WI

  • Algoma
  • Casco
  • Kewaunee
  • Luxembourg

Oconto County, WI

  • Abrahms
  • Gillett
  • Lakewood
  • Lena
  • Little Suamico
  • Mountain
  • Oconto
  • Oconto Falls
  • Sobieski
  • During
  • Townsend

Schedule Diesel Repair With Confidence


If you need dependable diesel truck or trailer repair in Green Bay, WI, I&T Diesel Repair is ready to help. From diagnostics and engine repair to maintenance, trailer service, and fabrication, we provide solutions built to keep your operation moving forward.

Call (920) 337-6364 today to request your free estimate and schedule service with a trusted diesel repair shop.