Frequently Asked Questions About International ProStar Radiator Tubes, Gaskets & Hoses

What years and models of International ProStar are these radiator hoses compatible with?

Our radiator hoses and tubes are designed to fit International ProStar models from 2008 through 2017. However, compatibility can vary based on your specific engine configuration (ISX, MaxxForce, etc.) and whether you have standard or extended hood models. We recommend checking your VIN or calling our technical support team at 1-888-875-7787 to confirm exact fitment for your truck.

Are these OEM quality or aftermarket parts, and what's the difference in durability?

We carry both OEM and high-quality aftermarket options. Our aftermarket hoses are manufactured to meet or exceed OEM specifications, using EPDM rubber compounds rated for temperatures from -40?F to 257?F. Many customers report our aftermarket options lasting just as long as OEM parts at a fraction of the cost. All products include detailed material specifications so you can make an informed choice based on your needs and budget.

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

Basic installation requires standard hand tools including hose clamp pliers, a drain pan, and basic wrenches. Most upper radiator hoses can be replaced in 30-45 minutes, while lower hoses may take 1-2 hours due to limited access. The biggest challenges are typically reaching clamps in tight spaces and properly bleeding the cooling system afterward. We provide installation guides with each purchase, and many customers successfully complete this as a DIY project.

How do I know when my radiator hoses need replacement before they fail?

Check your hoses every 6 months for these warning signs: soft or spongy spots when squeezed, visible cracks or splits, bulging areas, crusty white or green deposits near connections, or any wetness around clamps. ProStar hoses typically last 4-6 years or 400,000-600,000 miles under normal conditions. Replace them proactively if you notice any of these signs or if they're approaching 5 years old to avoid roadside failures.

Do you sell complete hose kits, and what's included versus buying individual hoses?

Yes, we offer complete cooling system hose kits that include upper and lower radiator hoses, heater hoses, bypass hoses, and new clamps. These kits save you 15-20% compared to buying parts individually and ensure you have matching components. Individual hoses are ideal for single replacements, while complete kits are recommended during major service intervals or when multiple hoses show wear. Kit contents are clearly listed on each product page.