Mack CV/GU Truck Fuel Tanks

Frequently Asked Questions About Mack CV/GU Truck Fuel Tanks

Will this fuel tank fit my Mack CV or GU model?

Fuel tanks for the Mack CV and GU series vary by capacity, diameter, and mounting configuration depending on the specific year and build of your truck. Before ordering, check the tank's length, diameter, and mounting hole spacing against your existing tank or your truck's service records to confirm a proper fit.

What materials are these fuel tanks made from, and does it matter?

Mack CV/GU fuel tanks are typically available in aluminum or steel. Aluminum tanks resist corrosion and are lighter, which can help with overall vehicle weight, while steel tanks are often more affordable and can offer added durability against impact. Your choice usually comes down to weight preference, budget, and how the truck is used.

What size fuel capacity options are available?

Fuel tanks for these models come in a range of capacities, commonly measured in gallons, to match different frame lengths and hauling needs. Make sure to match the replacement tank's capacity and physical dimensions to your original setup, or adjust your mounting brackets and straps accordingly if you're changing capacity.

How difficult is it to install a replacement fuel tank?

Installation generally involves draining and disconnecting the old tank, removing mounting straps or brackets, and transferring or reconnecting fuel lines, sending units, and vent lines to the new tank. Many customers with basic mechanical experience handle this themselves, but if your setup includes additional plumbing or sensors, having a qualified technician complete the swap can help avoid fuel system issues.

Do these tanks come with mounting straps, brackets, or sending units included?

This varies by product listing. Some fuel tanks are sold as the tank only, while others include mounting hardware or straps. Sending units and fuel level sensors are often sold separately since they can differ based on your truck's gauge and wiring setup. Always check the product details or reach out to our team to confirm exactly what's included before you order.