Serving Colton since 1956
RV, Truck, & Trailer Repair You Can Trust
Nine pull-through bays. Diesel engines, chassis work, motorhomes, and fire apparatus — right here in Colton.
Authorized Partners
Dealer & Warranty Center
We're proud to be your authorized service and parts partner for the industry's most trusted brands. We also work with Extended Warranty Companies and Insurance.
Cummins
Cummins Dealer & Cummins Warranty Center
Caterpillar
CAT Parts Dealer
VIPAR Heavy Duty
Independent Truck Parts Distributor Member
Spartan RV Chassis
Authorized Service Center
Onan Generator Service
Authorized Generator Repair Center
Cummins
Cummins Dealer & Cummins Warranty Center
Caterpillar
CAT Parts Dealer
VIPAR Heavy Duty
Independent Truck Parts Distributor Member
Spartan RV Chassis
Authorized Service Center
Onan Generator Service
Authorized Generator Repair Center
Line card · California DGS-approved
Full-service truck specialists
Emissions
DPF, DEF, SCR — repair & cleaning. Approved Clean Truck Check facility. Details →
Call about this service →B.I.T. & D.O.T.
Required safety inspections to keep you legal and on the road.
Call about this service →Fire apparatus
Engine, chassis, and systems repair for fire engines and ladder trucks. Learn more →
Call about this service →
...
Also: A/C (R-134A), drivetrain, front & rear suspension, PTO wet kits, welding, and hydraulics.
CARB program
Need to register your vehicle for Clean Truck Check?
Colton Truck Terminal Garage is an approved Clean Truck Check facility with credentialed testers. We perform required heavy-duty emissions compliance testing for vehicles over 14,000 lbs. GVWR operating in California.
Schedule a Clean Truck CheckOpacity & visual inspection (Smoke Check)
2012 & older engines
Smoke opacity test plus visual inspection of emissions control equipment.
OBD Clean Truck Check
2013 & newer engines
On-board diagnostic scan using a CARB-certified OBD device for 2013+ diesel and 2018+ alternative-fuel engines.
We also repair DPF, DEF, and SCR systems so vehicles can pass testing and stay compliant.
Need to register for Clean Truck Check?
Register HereMunicipal & fleet
Fire vehicle engine & apparatus repair
We service fire engines, ladder trucks, and related apparatus for local departments and fleets. As a California DGS-approved repair facility, we meet state standards for fleet and municipal work. Pull-through bays fit full-size apparatus for diesel engine work, chassis service, and safety systems.
MOTORHOME-COACHES
One-stop chassis repairs
Pre-sale inspections, M & G braking systems, alignment, and the full diesel motorhome maintenance schedule. Pull-through bays handle large coaches.
- • Trailing arms & radiators
- • Fan controllers & hydraulics
- • Engines & transmissions
- • Differentials & suspensions
- • Brake systems
- • Generators (Onan, Power Tech)
Coaches we service include Monaco, Holiday Rambler, Safari, Beaver, Country Coach, Spartan, and more.
Proud Member · #C013620Yard walk — coaches at the shop
Diesel motor homes
Maintenance intervals
Service at the time or mileage shown, whichever comes first. OEM notes are included where the factory interval is more frequent.
1.1 year or 10,000 miles
Whichever comes first- Engine oil, oil filters, fuel filters
- Lube and inspection of chassis
2.2 years or 20,000 miles
Whichever comes first- 1 year maintenance
- Generator oil change, oil filter, fuel filter
3.3 years or 30,000 miles
Whichever comes first- 1 year maintenance items
- Change air filter if not previously done
- Service fan drive gearbox (OEM every year)
- Non-drive hub service (OEM every year)
- Air drier desiccant filter (OEM every 2 years)
- Service hydraulic / power steering filters (OEM every year)
4.3.5 years or 75,000 miles
Whichever comes first- Allison transmission filter service
- Coolant services (non-extended life)
5.4–5 years or 40,000–50,000 miles
Whichever comes first- 1 year maintenance
- Differential service (OEM every year)
- Change hydraulic / power steering oil and filters (OEM every year)
6.7 years or 70,000 miles
Whichever comes first- 1 year maintenance
- Transmission service — oil and filters
- Coolant service (extended life coolant only)
Since 1956
Our story
Founded in 1956 in Colton, California. We repair commercial trucks, trailers, buses, fire apparatus, and diesel motorhomes. Nine pull-through bays handle large coaches and heavy-duty rigs. DGS-approved, Cummins-Certified Dealer, and Clean Truck Check facility.
Our Sister Store
Fleet Services, Inc.
Need truck, trailer, bus, or RV service across Southern California? Our sister store, Fleet Services, Inc., has been family-owned since 1966 — with the same commitment to honest service and quality work, and locations in Anaheim, San Bernardino, San Diego, and Ventura.
Visit Fleet Services, Inc.
Fleet Services, Inc.
Anaheim · San Bernardino · San Diego · Ventura
Road Warrior Parts
Premium Private-Label Parts
Premium Parts
Road Warrior Parts
We stock Road Warrior private-label parts — high-quality truck and trailer components at unbeatable prices, backed by Commercial Truck & Trailer Parts (CTTP).
Shop Road Warrior PartsFrequently Asked Questions
Common questions
What brands of diesel trucks do you repair?
Do you repair RVs and motorhomes?
What is Clean Truck Check?
Do you handle fleet and municipal accounts?
Do you offer parts?
Where are you and what are your hours?
What Our Customers Say
Reviews You Can Trust
"I have a 2012 Monaco and the Air-Conditioning was not working when I brought it in. I talked to John, the service manager. The guys at Colton Truck did a great job on repairing my air conditioner. It has never worked so good!"
Call for appointment
Open five days, Monday through Friday. Email or call — we service trucks, trailers, RVs, and fire apparatus.
Monday–Friday
8:00 A.M. to 4:30 P.M.