1978–1982 C3 Fuel Tank 24 Gal Repro Without Internal Bladder 457999 - OEM Number(s) (457999)
1978–1982 C3 Corvette Fuel Tank, 24 Gallon
Replaces GM# 457999
Say goodbye to fuel leaks, collapsed bladders, and strange fuel system issues. This 24-gallon reproduction fuel tank is a direct-fit upgrade for your 1978–1982 Corvette. Built without the problematic internal bladder, it includes the filler neck screws and sending unit gasket needed for installation.
Features
• No internal fuel bladder – eliminates OEM failure point
• 24-gallon capacity like original design
• Includes sender gasket and filler neck screws
• Direct replacement for 1978–1982 models
• Durable corrosion-resistant steel construction
Because Details Matter
• Replaces GM# 457999
• Restores full capacity and eliminates fuel starvation symptoms
• Designed to match factory fit and mounting points
Tech Notes
All fuel tanks are coated internally with a rust-preventive preservative. This lining must be removed before installation to prevent carburetor or fuel injection system issues.
Tank Prep Instructions
• Seal openings with rags and duct tape
• Add carburetor cleaner, acetone, or MEK
• Insert small hardware (nuts/bolts), shake to break up coating
• Repeat until drained solvent runs clear
• Allow to dry fully before installation
UNDER THE STRAW HAT – Restorer’s Insight
Starting in 1978, GM introduced a bladder-lined fuel tank for safety compliance. Over time, the inner bladder often collapsed or deteriorated, causing severe fuel delivery issues. This bladderless reproduction tank offers a long-term fix with factory-correct capacity and mounting points.
Also known under these part numbers: (For reference only)
- 25-176936-1
- 43304
- 457999
- 686420023463
- Q3930-B6011