73-81 C/K10 fuel tank 20 Gal; Lock Ring Kit Included

Liland Global IGM1A 20 Gallon Fuel Tank – 1973–1981 Chevy/GMC C/K Pickup – Ahead of Rear Axle

Bring your classic Chevy or GMC pickup’s fuel system back to dependable condition with the Liland Global IGM1A 20-gallon replacement fuel tank. Original square-body fuel tanks can rust internally, leak at seams, become contaminated, or suffer damage from age and road debris. Replacing the tank is an important step when restoring fuel delivery, reducing fuel odour, and protecting the rest of the fuel system.

The IGM1A is built as an OE-style replacement fuel tank for select 1973–1981 Chevrolet and GMC C/K Series pickups and is listed for ahead-of-rear-axle applications. It features a 20-gallon / 76-litre capacity, galvanized steel construction, and includes the lock ring and O-ring. RockAuto’s specification listing shows the tank as 56" long x 14" wide x 11" high, with silver powder coating, no filler neck attached, no sending unit, and no mounting straps included.

Sourced and sold by Part-Ticular Parts Inc.

Key Features

• Direct replacement-style fuel tank for classic Chevy/GMC pickups
• 20 gallon / 76 litre fuel capacity
• Mounts ahead of the rear axle
• Fits select 1973–1981 Chevrolet/GMC C/K Series pickups
• Galvanized steel construction
• Silver powder-coated/anti-corrosion finish
• Lock ring kit included
• O-ring included
• Designed to help replace rusty, leaking, dented, or contaminated original tanks
• Suitable for restoration, repair, or fuel system refresh projects

Vehicle Applications

Commonly listed for:

• 1973–1981 Chevrolet C/K Series Pickup
• 1973–1981 GMC C/K Series Pickup

This tank is listed by suppliers as a replacement steel gas tank for 1973–1981 Chevrolet/GMC C/K pickup applications, with the tank mounted ahead of the rear axle. Some listings also note left/right side fitment depending on the truck configuration, so customers should confirm their original tank size, mounting location, and filler/neck layout before ordering.

Product Specifications

Important Fitment Notes

Please verify your truck’s original tank before ordering. Fuel tank fitment can vary by:

• Model year
• C10, C20, C30, K10, K20, K30 configuration
• Bed length
• Tank location
• Driver/passenger side setup
• Gas or diesel application
• Original tank capacity

RockAuto notes that factory fuel tank capacity can vary slightly and recommends checking the owner’s manual or capacity specifications before ordering.

Installation Notes

Before installation, inspect or replace related fuel system components as needed, including:

• Fuel tank straps
• Sending unit
• Fuel filler hose
• Vent hose
• Fuel lines
• Rubber isolators or pads
• Clamps and hardware

This tank does not include mounting straps, sending unit, filler neck, or fuel pump, so those parts may need to be reused or purchased separately depending on the condition of the original components.