Frequently Asked Questions About Freightliner Century 112/120 Charge Air Coolers

Will this charge air cooler fit my specific year and model Freightliner Century?

Our charge air coolers are designed to fit Freightliner Century Class 112 and 120 models from 1996-2010. However, fitment can vary based on your engine type (Detroit, Caterpillar, or Cummins) and whether you have a standard or set-back front axle configuration. We recommend checking your existing cooler's part number or core dimensions (typically 31" x 23" for standard models) before ordering. If you're unsure, contact us with your VIN and we'll verify the correct fit.

What's the difference between aluminum and plastic tank charge air coolers?

Aluminum tank coolers offer superior durability and heat dissipation compared to plastic tank models. While plastic tanks are generally less expensive upfront, they're prone to cracking at the crimp connections after 5-7 years, especially in extreme temperature conditions. Aluminum tanks typically last 10-12 years and can often be repaired if damaged. Most drivers prefer aluminum for long-haul applications, though plastic tanks work fine for local or regional routes with less demanding duty cycles.

Can I install a charge air cooler myself, or do I need a shop?

Installation typically takes 2-4 hours for someone with basic mechanical skills. You'll need to drain the cooling system, disconnect the charge air pipes and hoses, and remove the grille and radiator mounting brackets. The main challenges are accessing the lower mounting bolts and properly aligning the rubber isolation mounts. Common mistakes include over-tightening connections (which can crack plastic tanks) and forgetting to replace the rubber seals. While DIY is possible, many drivers prefer professional installation to ensure proper boost pressure and avoid warranty issues.

How do I know if my charge air cooler is failing?

Common signs include loss of boost pressure (sluggish acceleration), excessive black smoke, higher than normal intake air temperatures, and coolant in the charge air pipes. You can perform a simple pressure test by removing the cooler and applying 30 PSI of air pressure while submerged in water - bubbles indicate leaks. Also check for oil residue at connection points and fin damage that blocks airflow. Most coolers fail gradually, so addressing issues early can prevent costly turbo damage.

Are aftermarket charge air coolers as good as OEM Freightliner parts?

Quality aftermarket coolers from reputable manufacturers often match or exceed OEM specifications at 30-50% less cost. Look for coolers with welded core construction (not epoxied), proper fin density (10-12 fins per inch), and tanks rated for at least 100 PSI. The key differences are usually warranty length and minor mounting bracket variations. Avoid the cheapest options as they often use thinner materials and poor welding that leads to premature failure. Most professional drivers find mid-range aftermarket coolers offer the best value for reliability.