Kenworth | Peterbilt

American Radiator is your trusted source for aftermarket Kenworth and Peterbilt air filters designed to deliver OEM-equivalent performance at a fraction of the cost. Whether you operate a Kenworth T680, W900, Peterbilt 579, or 389, our replacement air filters provide superior protection against dust, dirt, and contaminants that can shorten engine life. Each filter is built with high-efficiency media that maximizes airflow while maintaining exceptional filtration, ensuring your semi-truck runs at peak performance mile after mile.

As a nationwide supplier serving fleets, independent drivers, and repair shops since 1976, American Radiator understands the importance of minimizing downtime. That’s why we stock a wide range of Kenworth and Peterbilt aftermarket air filters ready for same-day shipping. Our large inventory means you’ll find the exact fit for your model without the high dealer markup, helping you save money without sacrificing quality.

Whether you’re looking to replace a clogged air filter, extend engine performance, or keep your truck compliant with maintenance schedules, our aftermarket filters deliver the durability and reliability drivers depend on. Backed by expert support and decades of heavy-duty parts experience, American Radiator is your headquarters for semi-truck air filters that perform as hard as you do.

FAQ'S

What types of air filters do you offer for Kenworth and Peterbilt trucks?
We offer panel filters, pleated cartridge filters, and high-efficiency media filters designed specifically to fit Kenworth and Peterbilt makes and models under heavy-duty use.

How do I know which Kenworth / Peterbilt air filter I need?
Match your existing OEM part number, measure the filter’s dimensions (height, width, depth), and verify airflow and mounting characteristics. Our compatibility charts and product specs can also guide you.

How often should the air filter be replaced for Kenworth / Peterbilt trucks?
Under normal road conditions, replace every 15,000–30,000 miles. In dusty or off-road environments (construction, gravel, mining), inspect more frequently and replace as soon as significant loading or airflow restriction is observed.

Will using an aftermarket Kenworth / Peterbilt air filter harm my engine or void warranties?
Not when you select a high-quality filter that meets or exceeds OEM filtration and airflow specifications. Properly matched and maintained, aftermarket filters should not negatively affect performance or void warranties.

Do you offer fast shipping or local pickup for these air filters?
Yes — we maintain inventory for Kenworth and Peterbilt air filters and offer fast nationwide shipping. For customers in the Des Moines / Midwest region, same-day or in-store pickup may be available when items are in stock.