Diesel Repair in Rubicon

For those who rely on diesel vehicles in Rubicon, the pressure of keeping your fleet in top shape can be a significant concern. Whether your operation involves a handful of light-duty pickups or an extensive lineup of heavy-duty semis, Ryan's Diesel Service stands ready to support your needs with skill and precision. Offering everything from comprehensive repairs to essential Department of Transportation (DOT) inspections, our experienced team ensures that your vehicles remain reliable and compliant. Plus, with our mobile service truck, we bring convenience right to your doorstep, making routine fixes stress-free. When you choose Ryan's Diesel, you're not just getting a service; you're gaining a partner committed to delivering top-notch quality and dependable support for every journey.

High End Diesel Products Is Our Specialty

Ryan’s Diesel Service is no stranger when it comes to the manufacturing of high-end diesel products.

Learn more about us HERE

Warranties on Our Turbos

Outlined on product pages and HERE

All Turbos Are Manufactured in House

We believe all products should be manufactured in-house to maintain high levels of quality control.

Our Customers Love Us

Over 100 Reviews on google with a 5 star rating. View HERE

High End Machining

We currently have a HAAS VF4 5-axis machining center which runs a fair majority of our products. We also have a HAAS TL-1 lathe.

Turbo balancing is all done in-house on either our West Coast Balancer WCB30 or CWT industries balancer.

Diesel Repair Services – Your Trusted Diesel Repair Shop in Wisconsin

At Ryan’s Diesel Service, we specialize in comprehensive diesel repair and maintenance for light and medium-duty diesel trucks and vehicles. With over 15 years of experience serving Southeastern Wisconsin, our ASE-level technicians deliver honest diagnostics, dependable repairs, and performance-driven service you can count on.

Whether you’re dealing with a hard-to-diagnose engine issue or need routine diesel system maintenance, our team has the expertise and equipment to keep your diesel running strong.

What We Repair

We provide a full suite of diesel repair services, including:

  • Engine and Drivetrain Repair
  • Diesel engine diagnostics and repair
  • Fuel system service, tuning, and injector replacement
  • Turbocharger replacement, rebuilds, and upgrades
  • Engine swaps and rebuilds

Diesel Performance & Upgrades

  • Performance enhancements and tuning
  • Drop-in turbos and custom builds
  • Power delivery optimization

Suspension, Transmission & More

  • Transmission diagnostics and repair
  • Suspension and drivetrain upgrades
  • Electrical system troubleshooting

Advanced Diagnostics

Our shop uses state-of-the-art tools to pinpoint performance issues fast- saving you time and money on unnecessary repairs.

Why Choose Ryan’s Diesel Service?

Choosing Ryan's Diesel Service in Rubicon means supporting a locally owned business that understands the unique needs of our community, providing personalized and responsive service that larger corporations simply can't match. With years of industry experience, our skilled technicians bring a wealth of knowledge to every vehicle, ensuring high-quality repairs and maintenance for any fleet size, whether you manage five vehicles or fifty.

We specialize in everything from light-duty pick-ups to heavy-duty semis and offer essential services, including Department of Transportation (DOT) inspections, to keep your business compliant and running smoothly. Our mobile service truck adds an extra layer of convenience, allowing us to come directly to your location for quick repairs, minimizing downtime. At Ryan's Diesel Service, we stand by our work with a comprehensive warranty on all services, demonstrating our commitment to your satisfaction and the efficient operation of your fleet. Experience the difference in service that comes from a team dedicated to the success of your business.

Contact Us

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