Frequently Asked Questions About Freightliner Century 112/120 Radiator Tubes & Hoses

What years and models are these radiator hoses compatible with?

Our radiator tubes and hoses fit Freightliner Century Class 112 and 120 models from 1996 through 2010. However, compatibility can vary based on your specific engine configuration (Detroit, Caterpillar, or Cummins). We recommend checking your VIN or calling us with your truck's serial number to ensure proper fitment, especially for trucks with aftermarket modifications or non-standard cooling systems.

Are these OEM or aftermarket hoses, and what's the quality difference?

We carry both OEM and high-quality aftermarket options. OEM hoses are manufactured to original Freightliner specifications using EPDM rubber rated for temperatures up to 257?F. Our aftermarket options from brands like Gates and Continental meet or exceed OEM standards and often feature reinforced fiber cord for added durability. Many drivers report aftermarket hoses lasting just as long as OEM at a fraction of the cost.

What tools do I need for installation, and how difficult is it to replace these hoses?

Basic installation requires standard hand tools including hose clamp pliers, a flat-head screwdriver, and a drain pan. Most upper radiator hoses can be replaced in 30-45 minutes, while lower hoses may take 1-2 hours due to limited access. Common challenges include removing stuck hoses (use a hose pick tool) and accessing clamps behind the fan shroud. We recommend replacing clamps during hose changes and having extra coolant on hand.

How do I know when my radiator hoses need replacement?

Inspect hoses every oil change for soft spots, bulging, cracking, or wetness around connections. Most hoses last 4-6 years or 400,000-600,000 miles under normal conditions. Replace immediately if you notice coolant residue (white or green crust) around fittings, spongy texture when squeezed, or visible wear at clamp locations. Preventive replacement during other cooling system service can avoid roadside failures.

What's included with the hose kits, and do I need additional parts?

Individual hoses typically come as the hose only. Complete kits include upper and lower radiator hoses, heater hoses, and sometimes bypass hoses. Clamps are sold separately unless specifically noted. We recommend purchasing new constant-torque clamps, especially for silicone hoses. You'll also need approximately 2-3 gallons of coolant for the flush and refill process after installation.