Kenworth W900B/W900L Diesel Fuel Tanks

Frequently Asked Questions About Kenworth W900B/W900L Diesel Fuel Tanks

Will these fuel tanks fit both the W900B and W900L models?

Fuel tanks are typically designed to match specific mounting configurations, tank diameter, and length, so it is important to confirm the exact measurements and mounting bracket spacing on your truck before ordering. While many tanks are built to fit both the W900B and W900L, frame variations and prior modifications can affect fitment, so double-checking your existing tank dimensions or consulting with our team is recommended before purchasing.

What materials are these fuel tanks made from, and does it affect performance or weight?

Diesel fuel tanks for the W900B/W900L are commonly available in aluminum or steel. Aluminum tanks tend to be lighter and more resistant to corrosion, which can be beneficial for fuel economy and long-term durability, while steel tanks may offer added durability in certain applications. The right choice often comes down to your priorities for weight savings versus ruggedness.

What size options are available, and how do I know which capacity I need?

These tanks are typically offered in a range of capacities to match different fuel range needs and frame lengths. To choose the right size, measure your current tank or check your truck's specifications, and consider your typical routes and fuel stops. If you are unsure, providing your truck's tank dimensions or current capacity to our team can help ensure you select a proper replacement.

What is involved in installing a replacement fuel tank?

Installation generally involves draining and removing the old tank, transferring or replacing mounting straps and brackets, connecting fuel lines and sending unit wiring, and securing the new tank to the frame. Because fuel systems involve pressurized lines and electrical connections, installation should be performed by someone experienced with heavy-duty truck fuel systems, and all connections should be checked for leaks before the truck is put back into service.

Do these tanks come with polished or finished exteriors, and how do I maintain that finish?

Many aluminum tanks are available in a polished or brushed finish for a cleaner appearance, while others come in a mill or painted finish. Polished aluminum tanks require regular cleaning and periodic re-polishing to prevent oxidation and maintain their shine, especially if the truck is exposed to road salt, moisture, or harsh weather conditions. If a low-maintenance option is preferred, a painted or mill-finish tank may be a better fit.