Kenworth W900A Fuel Tanks

Frequently Asked Questions About Kenworth W900A Fuel Tanks

What size fuel tanks fit the Kenworth W900A, and how do I determine the correct capacity for my truck?

Kenworth W900A trucks commonly accommodate fuel tanks ranging from 100 to 150 gallons, with dual tank setups typically using matching capacities on each side. To determine the right size, measure your existing tank dimensions (length x diameter) and check your frame rail spacing. Most W900A models have 34-inch frame rail centers, but always verify your specific measurements. Consider your typical route distances and weight restrictions when selecting capacity - larger tanks mean fewer fuel stops but add weight that affects payload.

Will these fuel tanks fit all W900A model years, and what about compatibility with W900B or W900L models?

W900A fuel tanks are designed specifically for 1961-1966 model years, though some tanks may fit up to early 1970s models with minor modifications. These tanks are NOT directly interchangeable with W900B (1967-1982) or W900L models due to different mounting bracket positions and frame configurations. The W900A uses a distinct strap and bracket system that differs from later models. Always verify your truck's OEM and model year before ordering, as mid-year production changes occasionally occurred.

What material options are available, and which is best for durability and weight?

Fuel tanks for the W900A come in three primary materials: aluminum, steel, and stainless steel. Aluminum tanks are the most popular choice, weighing 40-50% less than steel while offering excellent corrosion resistance. Steel tanks are the most economical but require regular maintenance to prevent rust. Stainless steel provides the ultimate in durability and appearance but comes at a premium price. For most applications, aluminum offers the best balance of weight savings, longevity, and value.

What installation challenges should I expect, and can I install these myself?

Installing W900A fuel tanks typically requires 4-6 hours for an experienced mechanic. Common challenges include aligning the mounting straps with existing frame holes, which may require drilling new holes if switching tank sizes. You'll need proper lifting equipment as empty 150-gallon aluminum tanks weigh approximately 85 pounds. Critical steps include ensuring proper ground strap connection, installing new fuel line fittings, and checking crossover line clearance. While DIY installation is possible with basic tools, professional installation is recommended to ensure proper venting and prevent fuel system issues.

Do these tanks come with necessary mounting hardware and fuel fittings?

Most replacement fuel tanks are sold as tank-only units without mounting hardware or fittings. You'll typically need to purchase separately: mounting straps and brackets specific to the W900A, rubber mounting strips, fuel tank sending units, drain valves, and fuel line fittings. Always verify what's included before ordering, as reusing old hardware may compromise tank security and lead to premature wear.