Need dependable Mack repair in Concord, CA? Rex Mechanical provides mobile and shop-based service for Mack equipment, commercial trucks, and heavy machinery. Our technicians handle everything from routine inspections to complex repairs—built around fast response and quality workmanship.

Rex Mechanical services for Mack include:

• On-site diagnostics and troubleshooting
• Preventative maintenance and scheduled inspections
• Mobile hydraulic hose diagnosis, fabrication, and replacement
• Brake, suspension, and steering repairs
• Cooling system repairs (radiators, hoses, fans, thermostats)
• Electrical and starting/charging system repairs
• Welding, fabrication, and equipment modifications
• DOT and compliance support for commercial vehicles
• Component repairs and heavy equipment overhauls
• Emergency breakdown response to reduce downtime

Whether it’s planned maintenance or an unexpected breakdown, we help Mack owners and operators across the Bay Area get back to work quickly.