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Ryan's Diesel Service
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        • 03-07 5.9L
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        • 19-24 6.7L
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        • 99.5-03 7.3L
        • 03-07 6.0L
        • 11-14 6.7L
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        • 23-25 6.7L
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        • 01-04 LB7
        • 04.5-05 LLY
        • 06-07 LBZ
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      • 11-16 LML
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Diesel Performance Shop in Horicon, WI | Ryan’s Diesel Service

When your diesel engine isn't performing at its best, it can lead to frustrating downtime and costly repairs. Residents of Horicon can find peace of mind at Ryan's Diesel, where our commitment to excellence in diesel performance is backed by advanced diagnostic techniques and high-quality components. Whether you're looking to enhance your vehicle's power through expert performance tuning or simply need a thorough inspection, our dedicated team is here to ensure your engine runs smoothly and efficiently. With a reputation built on trust and quality, Ryan's Diesel is the go-to destination for diesel enthusiasts and everyday drivers alike in Horicon.

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 Performance Shop in Wisconsin | Ryan’s Diesel Service

If you’re searching for a diesel performance shop in Wisconsin, Ryan’s Diesel Service is your trusted destination for power, reliability, and expert upgrades. We specialize in building and enhancing diesel trucks for maximum horsepower, torque, and drivability.Whether you want better towing performance, improved fuel efficiency, or a full performance build, Ryan’s has the experience and equipment to get it done right.

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Why Choose Ryan’s Diesel Service?

Ryan's Diesel stands out as a local, family-owned business deeply rooted in the Horicon community. With years of hands-on experience in the diesel industry, our skilled technicians utilize advanced diagnostic techniques to swiftly identify and rectify performance issues, ensuring that your vehicle operates at its best. We exclusively source high-quality components, giving you peace of mind with every repair. Our performance tuning not only enhances your engine’s efficiency but can also lead to significant fuel savings, making your investment work harder for you. We prioritize our customers by offering a two-year warranty on all parts and labor, underscoring our confidence in the quality of our work. At Ryan's Diesel, you receive not just expert service but a commitment to your satisfaction that reflects our pride in supporting the local economy and community. Experience the difference that personal dedication makes in keeping your diesel running strong.

Upgrade Your Diesel Truck Today

Ready to take your truck to the next level? Whether you need custom tuning, turbo upgrades, or a full performance build, Ryan’s Diesel Service has you covered.

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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
  • Lift Pump
  • Transmission
  • S400 Turbocharger
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