Keeping Your Fleets on the Road and Out Of The Shop

A little bit about us at Precision Diesel inNewport Beach, CA

Diesel mechanic performing heavy duty truck repairs in Newport Beach, CA

Welcome to Precision Diesel, where excellence and reliability converge to keep your fleet on the road and out of the shop. Established in 1999, Precision Diesel began as an in-shop truck and trailer repair business. Over time, our commitment to outstanding service led us to a realization — our customers value on-site service and repairs above the alternative. In response, we shifted our business model exclusively to mobile truck & trailer fleet maintenance, inspections, and repairs, and this has been our focus and specialty ever since.  

Our goal is to reduce the time your heavy equipment sits in a shop waiting for routine repairs that can be easily completed in a day or a few hours at your location.  

Our Foundation and Values

At the heart of Precision Diesel is a commitment to providing unparalleled mobile fleet maintenance and repair services. We provide services across Los Angeles County, Orange County, and Riverside County.  We believe in Customer Satisfaction through Integrity, Professionalism, and Service. 

A Mobile-Only Approach

Our fully mobile repair service is a testament to our dedication to convenience and cost savings to our customers.  We want your revenue generating assets on the road and out of the shop.  With our roots in in-shop repairs, we quickly evolved to the needs of our customers. Today, we boast a deep roster of ASE-certified mobile diesel mechanics, ensuring that your medium-duty and heavy-duty diesel trucks receive the service they need wherever they are.

Unmatched Expertise

Precision Diesel has proven time and time again that succeeding in this industry requires performance at the highest standards without compromise. Specializing in fleet maintenance, diagnostics, regulatory inspections, DPF cleaning, and battery replacements, to name a few, Precision Diesel is your trusted partner for comprehensive on-site truck and trailer fleet solutions. We bring decades of experience to every job, guaranteeing you get top-rated service plus more.

Why Choose Precision Diesel?

What sets us apart is our transparency, objectivity, and unwavering commitment to customer satisfaction. We offer attractive rates, stand by our commitments, and take pride in being unmatched in high-quality service throughout Southern California.  Our phone line, 714-TRUCKS1, ensures that we're there for you when you need us the most.

Mobile Service Hours & Area

Precision Diesel's mobile fleet service operates Monday to Friday, 7 am to 5 pm, and by appointment Saturday and Sunday.  We also offer emergency roadside assistance.

Precision Diesel proudly offers mobile truck and trailer fleet maintenance and repair services across Los Angeles County, Orange County, and Riverside County.

Contact Us

Call Precision Diesel today at 714-TRUCKS1 — we’re your partner in reliable, efficient, cost-effective, and transparent mobile fleet services across Southern California.

Services We Offer

List of Mobile Services and Repairs we offer at Precision Diesel!

Diesel mechanic performing fleet services in Newport Beach, CA
Truck Fleet
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On-site repairs for trucks, providing convenience and time savings
Diesel mechanic performing emergency roadside assistance in Newport Beach, CA
Roadside Assistance
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Emergency repair services for trucks stranded on the road
Diesel mechanic performing preventive maintenance services in Newport Beach, CA
Preventive Maintenance
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Scheduled services to prevent breakdowns and prolong vehicle life
Diesel mechanic performing DOT inspection in Newport Beach, CA
DOT Inspection
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Ensure vehicle compliance with safety standards and regulations
Diesel mechanic performing BIT inspection on a commercial motor vehicle in Newport Beach, CA
BIT Inspection
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Our mobile service ensures your commercial motor vehicle (CMV) compliance without the need to visit a shop
Diesel mechanic performing bus repair services in Newport Beach, CA
Bus Repair
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Services focused on maintaining and repairing passenger buses
Diesel mechanic performing trailer repair services in Newport Beach, CA
Trailer Repair
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Repair and maintenance services for all types of trailers
Diesel mechanic performing heavy equipment repair in Newport Beach, CA
Heavy Equipment Repair
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Maintenance and repair services for construction and heavy machinery
Diesel mechanic performing welding & fabrication on a semi truck in Newport Beach, CA
Welding & Fabrication
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Custom metal work and structural repairs for trucks
Diesel mechanic performing repairs on a semi truck in Newport Beach, CA
General Diesel Repair
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Diagnostics and repairs specialized for diesel engines and systems
Diesel mechanic performing killswitch services in Newport beach, CA
Kill Switch
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Routine checks and services to prevent future vehicle breakdowns
Diesel mechanic selling truck parts in Newport Beach, CA
Truck Parts & Accessories
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Sales of replacement parts and custom accessories for trucks
Diesel mechanic performing Electronic Data Log services in Newport Beach, CA
Electronic Data Log
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Comprehensive repair services for diesel engines and related components

Testimonials

Check out the Google reviews our customers have left us!

Position, Company name

Precision Diesel

"Temporary Testimonial: Great guys and professional, in and out fast. Absolutely recommend their services for heavy duty needs"
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Precision Diesel

Position, Company name

"Temporary Testimonial: Great guys and professional.

In and out fast. Absolutely recommend their services for heavy duty needs"
Google logo
Star icon
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Precision Diesel

Position, Company name

"Temporary Testimonial: Great guys and professional.

In and out fast. Absolutely recommend their services for heavy duty needs"
Google logo
Star icon
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