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Ryan's Diesel Service
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        • 94-02 5.9L
        • 03-07 5.9L
        • 07.5-18 6.7L
        • 19-24 6.7L
      • Ford Powerstroke
        • 99.5-03 7.3L
        • 03-07 6.0L
        • 11-14 6.7L
        • 15-19 6.7L
        • 20-22 6.7L
        • 23-25 6.7L
      • Chevy/GMC Duramax
        • 01-04 LB7
        • 04.5-05 LLY
        • 06-07 LBZ
        • 07.5-10 LMM
        • 11-16 LML
        • 17-23 L5P
    • Air Intake
    • Exhaust Components
    • Lift Pump
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    • S400 Turbocharger
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      • 01-04 LB7
      • 04.5-05 LLY
      • 06-07 LBZ
      • 07.5-10 LMM
      • 11-16 LML
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Mobile Diesel Repair in Hartland, WI

For Hartland residents, unexpected diesel breakdowns can disrupt your day, leaving you stranded and frustrated. That's where Ryan's Diesel steps in, providing reliable mobile diesel repair that comes to you, whether you’re at home, in a parking lot, or on the side of the road. Our team specializes in onsite diesel repairs, ensuring a swift response that gets your vehicle back on track without the hassle of towing. We understand the urgency of a roadside emergency and are dedicated to delivering prompt, high-quality service tailored to your needs. With Ryan's Diesel, you can trust that your diesel repair is in capable hands, allowing you to return to your routine with confidence.

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.

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Why Choose Ryan’s Diesel Service?

As a locally owned business in Hartland, WI, Ryan's Diesel understands the unique needs of our community's diesel vehicle operators. With over a decade of industry expertise, our skilled technicians are committed to delivering superior service and ensuring your equipment runs at peak performance. We specialize in onsite and mobile diesel repair, providing immediate assistance for roadside breakdowns, which minimizes downtime and gets you back on the road faster. Our quick response times mean you can trust us to be there when you need us most, whether it's an urgent repair or a scheduled maintenance check. Each service comes with our satisfaction guarantee, reflecting our confidence in the quality of our workmanship. By choosing Ryan's Diesel, you're not just getting reliable repairs; you're partnering with a team that prioritizes your needs and values your trust in every interaction.

On-Site Diesel Repair Services We Offer

We provide a full range of mobile diesel repair services, including:

Engine & Drivetrain Repair at Your Location

  • Mobile diesel engine diagnostics and repair
  • Fuel system service, tuning, and injector replacement
  • Turbocharger repair, replacement, and upgrades
  • Engine troubleshooting and on-site repairs

Mobile Diesel Performance & Upgrades

  • Performance tuning and enhancements
  • Turbo upgrades and installs
  • Power and efficiency optimization

With over 15 years of experience serving Southeastern Wisconsin, our ASE-level technicians provide on-site diagnostics, repairs, and maintenance, whether you’re at home, on the job site, or stranded on the road.

When your diesel is down, we come to you.

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Ready to set up an appointment?

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Dodge Turbocharger

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Ford Turbocharger

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GM Turbocharger

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Cab & Chassis Turbocharger

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Shop By Category

  • Shop All
  • Drop in Turbos
    • Cab & Chassis Turbocharger
    • Dodge Cummins
      • 94-02 5.9L
      • 03-07 5.9L
      • 07.5-18 6.7L
      • 19-24 6.7L
    • Ford Powerstroke
      • 99.5-03 7.3L
      • 03-07 6.0L
      • 11-14 6.7L
      • 15-19 6.7L
      • 20-22 6.7L
      • 23-25 6.7L
    • Chevy/GMC Duramax
      • 01-04 LB7
      • 04.5-05 LLY
      • 06-07 LBZ
      • 07.5-10 LMM
      • 11-16 LML
      • 17-23 L5P
  • Air Intake
  • Exhaust Components
  • Lift Pump
  • Transmission
  • S400 Turbocharger
  • Fuel Systems
    • 01-04 LB7
    • 04.5-05 LLY
    • 06-07 LBZ
    • 07.5-10 LMM
    • 11-16 LML
Ryan's Diesel Service

W356S8950 Godfrey Lane
Eagle, WI 53119

Call us at 262-844-9990

sales@ryansdieselservice.com

“Rates from 0–36% APR. Payment options through Affirm are subject to an eligibility check and are provided by these lending partners: affirm.com/lenders. Options depend on your purchase amount, and a down payment may be required. CA residents: Loans by Affirm Loan Services, LLC are made or arranged pursuant to a California Finance Lenders Law license. For licenses and disclosures, see affirm.com/licenses. For example, a $800 purchase could be split into 12 monthly payments of $72.21 at 15% APR or 4 interest free payments of $200 every 2 weeks.”

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  • Drop in Turbos
  • Dodge Cummins
  • Ford Powerstroke
  • Chevy/GMC Duramax
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  • Exhaust Components
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