Find quality aftermarket Peterbilt 359 Diesel Fuel Tanks: Upgrade your Peterbilt with durable aluminum fuel tanks built for performance and reliability. Available in sizes from 80 to 150 gallons, with rear-fill and center-fill options, these tanks fit your needs perfectly. Designed with aircraft-style filler necks and old-style manifolds, they blend seamlessly with your truck?s look. Whether you?re replacing an old tank or boosting capacity, these tanks are a solid choice to keep your rig running strong.