Frequently Asked Questions About Kenworth T700 Radiators

Will this radiator fit my specific Kenworth T700 model year?

Kenworth T700 radiators are designed for model years 2008-2019, but fitment can vary based on your engine type and configuration. Most aluminum radiators fit Cummins ISX, Caterpillar C15/C13, and Paccar MX engines. Before ordering, check your current radiator's part number (located on the top or side tank) or measure the core dimensions. Standard sizes are typically 42" x 38" for most T700s, but some configurations may require different dimensions. Contact us with your VIN if you're unsure about compatibility.

What's the difference between aluminum and plastic-tank radiators for my T700?

Aluminum radiators offer superior cooling efficiency and typically last 8-12 years with proper maintenance, while plastic-tank radiators usually need replacement every 4-6 years. Aluminum units weigh about 30% less, reducing front axle load, and can be repaired if damaged. Plastic tanks are prone to cracking, especially in extreme temperatures, and cannot be repaired. While aluminum radiators cost more upfront (typically $800-$1,500 vs $400-$700), they provide better long-term value through increased durability and improved fuel economy from better cooling.

Can I install a T700 radiator myself, or do I need a professional?

Installation typically takes 3-4 hours for experienced mechanics and 5-6 hours for DIY installers. You'll need basic tools including wrenches, pliers, a coolant drain pan (minimum 15-gallon capacity), and new coolant. The process involves draining the system, disconnecting upper/lower hoses, transmission cooler lines (if equipped), removing the radiator mounting bolts, and carefully lifting out the old unit. Critical steps include properly torquing mounting bolts (typically 25-30 ft-lbs) and ensuring all connections are secure. Many drivers successfully complete this job themselves, but professional installation ensures proper coolant mixture and system bleeding.

How do I know if my T700 radiator is failing before it completely breaks down?

Watch for these warning signs: coolant temperature running 10-15 degrees higher than normal (above 195-200?F), visible coolant leaks around tank seams or core fins, white residue on the radiator exterior, low coolant levels requiring frequent top-offs, or steam/sweet smell from under the hood. Check fin condition monthly - bent or clogged fins reduce cooling by up to 30%. If you notice coolant in your oil (milky appearance) or transmission fluid (pink/red tinge in coolant), stop driving immediately as this indicates internal radiator failure that can cause severe engine damage.

What's included with a replacement T700 radiator, and what additional parts might I need?

Most quality replacement radiators include the core assembly with tanks, mounting brackets, and drain petcock. However, you'll typically need to purchase separately: upper and lower radiator hoses ($40-80 each), hose clamps ($20-30 set), coolant (15-20 gallons at $15-25/gallon for extended life coolant), thermostat ($30-60 - recommended to replace with radiator), and radiator cap ($15-25). Some units include transmission cooler connections, while others require adapter fittings ($20-40). Budget an additional $200-300 for these components beyond the radiator cost.