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2006 Freightliner Century Class 2006 CST120 Straight Truck – Long Conventional

Repair services & inexpensive new parts for 2006 Freightliner Century Class 2006 CST120 Straight Truck – Long Conventional with 14.0L 14063CC 858Cu. In. l6 DIESEL Turbo/Aftercooled engine.

The 2006 Freightliner Century Class CST120 is a long conventional straight truck designed for heavy-duty performance, featuring a robust 14.0L turbocharged diesel engine. Ideal for long-haul transportation, this model provides a reliable and efficient driving experience with a 4x2 drivetrain configuration. The combination of a spacious cab and powerful engine makes it suitable for various commercial applications, from freight hauling to delivery services. Owners should be aware of common maintenance needs and potential issues, ensuring longevity and optimal performance.

Common Issues

Some common issues reported by owners of the 2006 Freightliner Century Class CST120 include:

  • Electrical system problems, particularly with wiring harnesses.
  • Transmission issues, including hard shifting or slipping.
  • Fuel system failures, often related to fuel injectors or pumps.
  • Overheating due to coolant leaks or radiator problems.

Maintenance Tips

To maintain the performance and reliability of your 2006 Freightliner Century Class CST120, consider the following tips:

  • Regularly check and change engine oil and filters according to the manufacturer's schedule.
  • Inspect and maintain the cooling system, including hoses and coolant levels.
  • Perform routine inspections of the brake system and replace pads and fluids as needed.
  • Monitor tire condition and pressure, rotating them as required.

Typical Repair/Owership Cost Ranges

Repair and ownership costs for the 2006 Freightliner Century Class CST120 can vary significantly based on usage and maintenance practices. Here are typical ranges:

  • Routine maintenance (oil changes, filters, etc.): $300 - $600 annually.
  • Common repairs (brakes, transmission work): $800 - $2,500 per incident.
  • Insurance costs: $1,200 - $2,500 annually, depending on coverage.

Buying Advice (What to Inspect)

When considering the purchase of a used 2006 Freightliner Century Class CST120, inspect the following:

  • Engine condition: Look for oil leaks and listen for unusual noises.
  • Transmission performance: Test drive to ensure smooth shifting.
  • Brakes: Check for wear on pads and rotors.
  • Exterior and frame: Look for signs of rust or structural damage.

Frequently Asked Questions

  • What is the fuel economy of the 2006 Freightliner Century Class CST120? Fuel economy can vary, but it generally averages between 6-8 miles per gallon, depending on load and driving conditions.
  • What is the towing capacity of the CST120 model? The towing capacity typically ranges around 22,000 to 26,000 pounds, depending on configuration.
  • How often should I change the oil? It is recommended to change the oil every 10,000 to 15,000 miles or as specified in the owner’s manual.
  • Are parts readily available for this model? Yes, many parts are widely available through Freightliner dealerships and aftermarket suppliers.
  • What kind of warranty is available for used models? Warranties for used vehicles vary; check with the seller for any existing warranties or options for coverage.
  • Is the CST120 suitable for city driving? While it can handle city driving, its size and weight make it more suitable for highway and long-distance travel.
  • What are common upgrades for this truck? Common upgrades include improved exhaust systems, enhanced suspension, and advanced navigation systems.
  • How does this model perform in adverse weather conditions? With proper tires and maintenance, the CST120 performs well in various weather conditions, but caution is advised in icy or snowy conditions.

Have Questions about Freightliner Century Class 2006 CST120? Ask the assistant for questions about mileage, performance, repairs, parts, recommended maintenance and more.


Make: Freightliner
Model: Century Class
Trim: CST120 Straight Truck – Long Conventional
Year: 2006

Quick Info

Fuel: DIESEL
Aspiration: Turbo/Aftercooled
Engine Displacement: 14.0L
Engine CC: 14063
Engine CID: 858
Engine Block Type: L
Cylinder Type: U/K
Cylinders: 6
Drive: 4 X 2
Body Type: Straight Truck – Long Conventional
Doors: U/K

Repair services & inexpensive new parts for 2006 Freightliner Century Class 2006 CST120 Straight Truck – Long Conventional with 14.0L 14063CC 858Cu. In. l6 DIESEL Turbo/Aftercooled engine.