Frequently Asked Questions About Freightliner M2 Business Class Radiators

Will this radiator fit my specific year and model of Freightliner M2?

Freightliner M2 radiators vary by model year, engine type, and chassis configuration. Most aftermarket radiators fit M2 106 and M2 112 models from 2003-2021, but you'll need to verify your engine type (Cummins ISB, ISC, ISL, or Cat C7) and whether you have a single or dual cooling system. Check your VIN or existing radiator part number against our compatibility charts, or contact us with your truck's specifics for exact fitment confirmation.

What's the difference between aluminum and plastic tank radiators for my M2?

Aluminum tank radiators typically last 8-12 years and handle pressure cycles better than plastic tank models, which usually last 5-7 years. While plastic tank radiators are initially less expensive, they're prone to cracking at the tank-to-core crimps, especially in extreme temperatures. Aluminum radiators cost about 20-30% more upfront but offer better heat dissipation and are fully repairable if damaged, making them more cost-effective long-term for commercial use.

Can I install a new M2 radiator myself, or do I need special tools?

M2 radiator replacement typically takes 3-4 hours and requires basic hand tools, though you'll need a coolant pressure tester and possibly a transmission cooler line disconnect tool. The main challenges include safely draining 6-8 gallons of coolant, disconnecting transmission lines without damage, and properly aligning the heavy radiator (40-60 lbs) during installation. Many operators handle this themselves, but improper installation can cause leaks or overheating issues.

How do I know if I need a standard or heavy-duty radiator for my M2?

Heavy-duty radiators feature 2-4 additional rows of cooling tubes and are essential for trucks regularly hauling maximum loads, operating in mountainous terrain, or running in extreme heat. If your M2 frequently runs above 210?F under normal conditions, experiences coolant loss, or has auxiliary equipment like PTOs, upgrade to a heavy-duty model. Standard radiators work fine for local delivery and lighter applications under 26,000 lbs GVWR.

What warranty should I expect, and what voids coverage on these radiators?

Quality aftermarket M2 radiators typically carry 1-3 year warranties covering manufacturing defects and leaks. However, warranties become void from contaminated coolant, mixing coolant types, physical damage from debris, or installation errors like over-tightening fittings. Always flush your cooling system before installation, use the correct coolant type (usually ELC for 2007+ models), and maintain proper coolant levels to ensure warranty protection.