Peterbilt 352 Fuel Tanks

Frequently Asked Questions About Peterbilt 352 Fuel Tanks

What size fuel tanks fit my Peterbilt 352, and how do I determine the correct capacity?

Peterbilt 352 models typically accommodate fuel tanks ranging from 50 to 150 gallons, depending on your truck's configuration and wheelbase. To determine the correct size, measure the distance between your frame rails and the available mounting space behind the cab. Standard diameters are 23", 24.25", and 26", with lengths varying based on capacity. Most 352 models from 1969-1987 use 26" diameter tanks, but always verify your frame rail spacing before ordering. Check your door jamb sticker or original build sheet for factory tank specifications.

Are these fuel tanks made of aluminum or steel, and which material is better for my application?

We offer both aluminum and steel fuel tanks for the Peterbilt 352. Aluminum tanks weigh approximately 50% less than steel, reducing overall vehicle weight and improving fuel economy. They also resist corrosion better in road salt conditions. Steel tanks cost less upfront and handle impact damage better, making them ideal for heavy-duty applications or rough terrain. For long-haul operations where weight matters, choose aluminum. For vocational trucks or budget-conscious buyers, steel remains a solid choice.

What mounting hardware and straps do I need for installation?

A complete Peterbilt 352 fuel tank installation requires tank straps (typically 108" to 114" depending on tank size), mounting brackets specific to your frame width, rubber isolation strips, and grade 8 bolts with lock washers. Most installations need two straps per tank. If replacing an existing tank, inspect your current straps and brackets for wear or corrosion. We recommend replacing straps every second tank change to ensure security. Tank sending units, fuel line fittings, and vent assemblies are sold separately based on your specific fuel system configuration.

Will these tanks work with my step boxes and battery boxes?

Yes, our Peterbilt 352 fuel tanks are designed to work with standard step and battery box configurations. Round tanks allow maximum ground clearance for step boxes mounted below. D-shaped tanks provide a flat mounting surface for battery boxes on the back side. Measure the distance from your cab to the rear spring hanger to ensure proper fitment with existing accessories. Most 50-100 gallon tanks leave adequate room for standard step configurations, while 120+ gallon tanks may require step relocation on shorter wheelbase trucks.

Do these tanks come with sending units and fuel pickups installed?

Our Peterbilt 352 fuel tanks come with pre-drilled sending unit holes but do not include the sending units or fuel pickups themselves. This allows you to match your existing fuel gauge system, as sending unit resistance values vary between mechanical and electronic gauges. Standard 5-hole patterns accommodate most SAE sending units. Fuel pickup tubes, vents, and auxiliary ports must be ordered separately based on your engine's fuel system requirements (single or dual pickup) and whether you need drawtubes for dual tank systems.