We fix diesels. We fix it right.

We're here to keep your diesel fleet and heavy equipment running strong. Brother's Precision Diesel serves the Ontario area and beyond with straightforward, dependable repair and maintenance you can count on.

• We handle diesel engine repair, diesel truck repair, and complete diesel engine overhaul for commercial vehicles and heavy equipment.
• Our mobile diesel mechanic team comes to you when equipment breaks down, getting you back on the road fast.
• We specialize in heavy equipment repair and mobile heavy equipment service across multiple industries and job sites.
• Equipment breakdown service means we respond when you need us most, not on our schedule.
• Commercial truck repair and heavy duty mechanic work are what we do every day in Ontario, CA.

When your diesel engine fails, or your heavy equipment stops working, downtime costs money. That's why we focus on clear communication, honest diagnostics, affordable prices, and quality work you can count on. We've built our reputation by showing up prepared, identifying the problem accurately, and delivering repairs that last. Whether you need routine maintenance or urgent diesel repairs, we work hard to get your equipment running safely and efficiently without unnecessary costs. Ready to get your equipment back in service? Reach out to Brother's Precision Diesel today and let us provide dependable service at a fair price.