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Kenworth W900B/W900L Radiators
Why Buy Aftermarket Radiators for the W900b/900l Kenworth?
- Built Tough:Plastic and aluminum cores offer strength without extra weight. - Better Cooling:Boosts efficiency over old or failing OEM parts. - Easy Install:Designed to fit Kenworth W900B and W900L models seamlessly. - Options That Fit Your Setup:Available with or without oil coolers, surge tanks, or frames. - Long-Haul Tested: Made for commercial drivers who count on performance. While you're working on replacing the radiator, you can easily swap out nearby components that might be damaged, like the Kenworth AC condensor, located in front of the radiator, or radiator tubes and gaskets. Consider a comprehensive upgrade by adding new W900l fan shrouds to direct airflow effectively through your radiator, or replace your Kenworth w900b intercooler/charge air cooler for a more optimal thermal management system in your truck.Here's What the Radiator Does
The radiator moves coolant through your engine to pull heat away and release it into the air. It helps your engine run at the right temperatureânot too hot, not too cold. Without it? You risk breakdowns, engine damage, and big repair bills.Whether you're replacing a cracked tank or upgrading your cooling system, our aftermarket radiators are built to handle long miles, heavy loads, and hot engines. Stay cool and stay rollingâshop Kenworth radiators today.
Frequently Asked Questions About Kenworth W900B/W900L Radiators
Will these radiators fit both W900B and W900L models, and what years are they compatible with?
Most aftermarket radiators in this category are designed to fit both W900B (1987-2002) and W900L (1988-present) models, but fitment can vary based on your specific engine configuration. Critical factors include your engine type (CAT, Cummins, Detroit), whether you have an extended hood, and any aftermarket modifications. Always verify the radiator dimensions and inlet/outlet locations match your truck's specifications before ordering. We recommend having your VIN and engine serial number ready when contacting us for the most accurate fitment guidance.
What's the difference between aluminum and copper/brass radiators, and which should I choose?
Aluminum radiators typically offer better cooling efficiency, weigh 40-50% less than copper/brass units, and resist corrosion better in most conditions. However, copper/brass radiators are often easier to repair if damaged and may last longer in certain applications. For most W900B/W900L owners, aluminum radiators provide the best balance of performance and value, especially if you're running heavy loads or in hot climates. Copper/brass remains a solid choice if you prefer traditional serviceability or have a trusted local radiator shop for repairs.
How difficult is the installation, and what additional parts might I need?
Installation typically takes 3-5 hours for experienced mechanics, though first-time installers should budget 6-8 hours. Common challenges include aligning mounting brackets, especially on older trucks where original mounting points may be worn. You'll likely need new radiator hoses, clamps, and coolant (typically 12-16 gallons). Some installations require new mounting cushions or brackets if switching between radiator types. We strongly recommend replacing the thermostat and pressure cap during installation to ensure optimal cooling system performance.
What core size and row count do I need for my application?
Standard applications typically use 2-row cores, which work well for most highway driving conditions. Heavy-haul operators, trucks with high-horsepower engines (600+ HP), or those operating in extreme heat should consider 3 or 4-row cores for additional cooling capacity. Core sizes generally range from 42" to 48" wide, with height varying based on your specific model. Oversizing isn't always better - proper airflow and fan coverage are crucial for efficient cooling. Match your radiator capacity to your actual cooling needs to avoid overcooling issues.
How can I ensure my new radiator lasts, and what warranty coverage is typical?
Quality radiators typically carry 1-2 year warranties, with some premium brands offering up to 3 years. To maximize lifespan, flush your cooling system before installation, use the correct coolant mixture (typically 50/50 antifreeze to water), and maintain proper pressure cap function. Regular cleaning of fins and checking for debris blockage extends radiator life significantly. Avoid using stop-leak products, as these can clog new radiator tubes. Most warranty claims stem from installation errors or coolant contamination, so following proper procedures during installation is crucial for warranty protection.
