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Expert Mechanics
At RoadWrench Diesel, our team of highly trained mechanics specializes in diesel repair for commercial trucks. We ensure that your vehicle is in top condition to minimize downtime and maximize productivity.
Our Work: Quality Repairs in Action
Clean Truck Check Credentialed Testers
RoadWrench Diesel is credentialed by CARB to perform Clean Truck Check emissions testing. Our Certified team handles OBD compliance tests with accuracy and speed, keeping your trucks legal and ready for the road.
FAST, COMPLIANT, FLEET READY
- State recognised testing for heavy duty diesel vehicles
- OBD testing completed by credentialed technicians
- Digital Submissions directly through CARB's system
- Mobile testing
We make compliance simple so your trucks stay moving.
Why Operators Choose Us
- CARB Credentialed testers
- Clear communication and quick turn around
- Mobile diesel specialist with real fleet experience
RoadWrench Diesel keeps your fleet compliant, accurate and on schedule.
Preventative Maintenace Packages
Keep your trucks reliable, compliant and Road Ready with RoadWrench Diesel's PM Packages. Each service is designed to reduce downtime, extend component life, and support clean, consistent fleet operation.
Tier 1- Bring Your Own
You provide the oil and filters, and we handle the full service.
- Full PM Labor
- Oil Change
- Fuel filter replacement
- Visual inspection
Perfect for fleets that already stock their own parts
Tier 2- Full Service Package
We supply everything needed for the PM service.
- Oil
- Oil Filter
- Fuel Filters
- Full PM Labor
Ideal for operators who want a turnkey, no hassle service
Greasing Add On
Add chassis greasing to either tier for improved component life and smoother operation.
Why Choose RoadWrench Diesel
- Mobile Service for maximum convenience
- Fast turnaround and clear communication
- Fleet Friendly documentation
- Bilingual Support (Hablamos Español)
Your truck stays maintained, compliant, and ready to roll, without downtime or guesswork.
Fleet Safety & Inspection Programs
Road Wrench Diesel provides comprehensive truck inspection services designed to keep your fleet safe, compliant and road ready. From FMCSA Compliant DOT and California CHP mandated BIT to Pre-Purchase evaluations and routine Safety Checks, our certified technicians deliver clear, accurate assessments that help you prevent downtime, avoid violations, and make confident decisions about your fleet. Every inspection is performed with precision, transparency, and a commitment to keeping your trucks operating at their best.
DOT Inspection
RoadWrench Diesel performs FMCSA compliant DOT inspections to ensure your truck meets all federal safety requirements. Our technicians check critical components, verify documentation and identify issues before they become violations or downtime.
- Safety Component review- brakes, tires, steering, suspension, lights and coupling devices
- Driver documentation check- credentials, logs, and required paperwork
- Regulatory compliance verification- ensuring your unit meets FMCA STANDARDS
BIT Inspection (California CHP)
Our CHP mandated BIT inspections help California fleets stay compliant and avoid roadside violations. We inspect major mechanical systems and safety equipment to ensure your truck meets state requirements.
- Brake system inspection
- Tires, wheels & hubs
- Lights & electrical systems
- Steering & suspension
- Safety equipment verification
Pre-Purchase & Safety Check Inspection
RoadWrench Diesel offers Pre-Purchase and Safety Check Inspections designed to give you a clear, honest picture of a truck's condition before you buy it or send it out on the road. Our technicians evaluate the unit's mechanical health, identify existing or developing issues, and confirm that critical safety components are functioning properly. These Inspections help you make confident decisions, avoid costly surprises and ensure the truck is ready for reliable operation.
- Mechanical condition assessment- engine, drivetrain, and major components
- Diagnostic Scan & Fault review- identifying active and stored trouble codes
- Fluid, filter & leak inspection- checking for maintenance needs or hidden issues
- Brake, tire & suspension condition- verifying roadworthiness and safety
- Lights & electrical function test- ensuring proper operation of essential systems
Additional Services
Diagnostic, Repair & Roadside Solutions
*Parts not included. For effective diesel repair, make sure to have the right parts. We can help you source this with a 3rd party vendor.
Check Engine Light Diagnostics
RoadWrench Diesel provides accurate, OEM level diagnostics to identify the cause of your check engine light and prevent unnecessary downtime. We scan the truck's systems, review active and stored fault codes, and pinpoint the issue so repairs can be made quickly and correctly.
- Full diagnostic scan
- Fault Code interpretation
- System Performance evaluation
Tires & Brakes
Our technicians handle tire and brake services that keep your truck safe, stable, and ready for the road. From replacements to repairs, we ensure your braking system and tire condition meet safety and performance standards.
- Brake Inspection & Replacements
- Tire repairs & replacements
- Wheel seals & hub checks
DPF Cleaning
Our DPF cleaning service restores proper exhaust flow, reduces regen frequency, and helps prevent costly aftertreatment failures. We remove soot and ash buildup to keep your emissions system performing efficiently.
- DPF inspection
- Soot & Ash removal
- Aftertreatment performance check
Roadside Jump Starts
RoadWrench Diesel offers fast, reliable roadside jump starts when your truck won't fire up. Whether you're stuck at a yard or on the side of the road, we show up with the right equipment to get you moving again.
- Battery Testing
- Heady-duty jump start service
- Charging system check
Onsite repairs
RoadWrench Diesel delivers onsite repair services for fleets and owner-operators who need fast dependable work without the downtime of a shop visit. We handle a wide range of mechanical issues right where your truck is parked.
- Cooling system repairs
- Belts, hoses & components
- General mechanical Repairs
We specialize in diesel repair for heavy-duty commercial vehicles only. Please note that we do not service passenger vehicles.