You already know that you want durability and resilience to rust and erosion in your tank. You may also want a custom size for your specific rig and are looking for a manufacturer that can build to order. 4-State has you covered on both counts. With most common sizes already in stock and ready to ship, we're ready to assist you wth any and all preferences in your search for the perfect Kenworth fuel tank.

If for any reason you are unsatisfied with your purchase, we offer a warranty period on our ALTTEC tanks for a full two years. That's the longest warranty on aftermarket Kenworth fuel tanks in the business. We are that confidant in our products. Our fuel tanks are built to spec by our business partner ALTTEC, an accredited and trusted fuel tank specialty manufacturer for over 20 years.

With our tanks, you will find all of the quality and customization of a high end aftermarket part and the specific fit of an OEM manufactured part without the large price tag associated with both.

If you're really after customization with your new Kenworth fuel tank, we also offer split-tanks to accommodate hydraulic oil and diesel fuel in one tank. Heck, if you really want to go for broke, you can design your own tank with ALTTEC's online tools and we can make sure everything is spec'd to fit your rig.

We trust our fuel tanks to be the best in the business. That's why we've been partnered with our manufacturer for over 15 years now. If you have any questions at all about settling on the perfect Kenworth fuel tank or the installation process, please give us a call. We love to talk shop.