Colton Truck Terminal Garage

Colton Truck Terminal Garage is a diesel truck, RV and motorhome repair shop based in Colton, California. You bring the rig to its shop at 863 E Valley Blvd, where nine pull-through bays mean a full-length coach drives in one end and out the other without backing or splitting apart.

It works on the chassis end of a motorhome: diesel engines, Allison transmissions, brakes, alignment, trailing arms, radiators, fan controllers, hydraulics, differentials and suspension, plus dash air conditioning, batteries and charging systems. It handles diesel pushers, gas coaches and towables, and names Monaco, Holiday Rambler, Safari, Beaver and Country Coach among the coaches it services. It is a Cummins-Certified Dealer and Warranty Center, a Spartan RV Chassis Authorized Service Center and an Onan Generator authorized repair center, which matters because those three systems cover most of what actually strands a diesel coach on the road. It sits near the I-10 and I-215, serving San Bernardino, Riverside, Fontana, Rialto, Redlands, Bloomington and Ontario.

It offers written pre-trip and pre-purchase chassis inspections covering the engine, transmission, brakes, steering, suspension, tires, batteries and dash air, useful before buying a used coach or before a long trip. It also works with extended warranty companies and insurers on coach repairs. No hourly rate or diagnostic fee is published, so ask about pricing when you call. It is open Monday through Friday, 8:00 AM to 4:30 PM, and appointments run about three weeks out. Google rates it 4.8 stars from 129 reviews. Family-run in Colton since 1956.

This is a good fit for an owner with a diesel pusher or Spartan chassis coach who wants real engine and transmission work done under one roof, and who can plan a few weeks ahead rather than needing same-day help.