Hollow Roads Diesel is a full-service heavy diesel repair shop located in Boscobel, Wisconsin, proudly serving owner-operators, fleet managers, and local businesses since 2021. As a small family-owned operation, we’re driven by a commitment to quality, honesty, and keeping trucks on the road where they belong.

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With a team of three highly trained technicians bringing together over 50 years of combined experience, we specialize in comprehensive diesel services for Class 7 and 8 trucks. From routine oil changes and wheel alignments to advanced engine diagnostics, electrical troubleshooting, HVAC repairs, and full engine overhauls, our shop is equipped to handle it all—quickly, reliably, and at a fair price.

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Our growing parts inventory means faster turnaround times and less downtime for you. Our shop is equipped with industry-standard tools and the latest software to ensure every truck leaves our bay running at peak performance.

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We're not just in the business of fixing trucks—we're in the business of supporting the people who drive them.