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Rock Diesel Of Milton, L.L.C./Milton Motorsports

"One Stop Diesel Shop!!"

About Us

Rock Diesel of Milton, LLC is Milton, Wisconsin's premier diesel performance and repair shop. Our passionate technicians boast years of expertise in enhancing diesel vehicles. We offer comprehensive services including turbos, tuning, injectors, transmissions, exhausts, and intakes. Our shop operates Monday through Friday, 8:30 am to 5:30 pm. Stay connected for updates and promotions via our News section and Facebook page, or watch our thrilling diesel content on our YouTube channel. Contact us to learn more about our complete service offerings!

Areas Served

Southern Wisconsin | Northern Illinois

Our Professional Associations

Our Certifications

What We Offer

Our Specialties include:

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Testimonials

On 4/18/2025 Larry Langer had this to say:
Good knowledgeable crew. Hope that doesn't change. Been to other shops that have workers and sometimes owners that don't care bout your vehicle.

On 1/14/2025 Linda Valentine had this to say:
Good communication, very thorough

On 7/19/2024 Jaylyn Volkey had this to say:
Wow. All I can say. We have owned our 6.0L for 3 years and they got this problem child of a truck figured out. Best it’s ran yet. Major thank you.

On 6/2/2024 jesse miller had this to say:
Unfortunately my truck broke down on the interstate 1500km from home at the end of a friday... Rock diesel wasn't able to repair me in such short notice, but they were knowledgeable with my diesel problem and helped diagnose a solution over the phone. They were able to recommend a local shop that was able to help with the repair. This helpful service is hard to come by!! Thank you for taking the time to get us back on the road!!

On 3/6/2024 CLAIRE EITHUN had this to say:
have nothing but good things to say!

Contact Us

Rock Diesel Of Milton, L.L.C./Milton Motorsports
4365 Milton Avenue Janesville, WI 53546
Phone: (608) 743-9100
Secondary: (608) 868-7199
Email: ryan@rock-diesel.com

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Payment Types Accepted

Visa, MasterCard, American Express, Discover, PayPal, Personal Checks, Debit Cards, Cash

Our Hours

Holiday Hours May Vary. Please Call For Details.

Monday: 8:00 AM - 5:00 PM
Tuesday: 8:00 AM - 5:00 PM
Wednesday: 8:00 AM - 5:00 PM
Thursday: 8:00 AM - 5:00 PM
Friday: 8:00 AM - 5:00 PM

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