Spectra GM11A Fuel Tank

Spectra GM11A Fuel Tank for Classic GM Trucks

The Spectra GM11A is a direct replacement fuel tank for select Chevrolet and GMC trucks from the 1975-1981 model years. It is built to match original equipment fit and function for classic C10, C20, C30, K10, K20, K30, C1500, C2500, C3500, K1500, K2500, and K3500 applications.

Key Features

• OE-style fuel tank replacement for classic Chevrolet and GMC truck platforms
• Tank dimensions: 42-7/8 in. x 14-1/8 in. x 11 in.
• 16-gallon capacity
• Positioned ahead of the rear axle
• Lock ring kit included
• Built with Spectra Premium engineering, manufacturing, and quality control standards

Detailed Description

Designed for fuel storage service on vintage GM trucks, the Spectra GM11A fuel tank is engineered to meet or exceed the performance of the original equipment tank it replaces. This part number is a practical choice for restoring fuel system integrity on 1975-1981 Chevrolet C10, C20, C30, K10, K20, and K30 models, as well as 1979-1981 GMC C1500, C2500, C3500, K1500, K2500, and K3500 trucks. This part cross-references Champion Spark Plug 840 for the same application.

What It Helps Address

• Fuel tank corrosion or rust-through
• Leaks caused by an aging or damaged tank
• Fuel delivery issues related to a compromised tank interior
• Restoration work on classic Chevrolet and GMC truck fuel systems
• Replacement of a tank that no longer matches OE dimensions

Installation Notes and Tips

Verify tank dimensions, capacity, and rear-axle placement before installation. Confirm the vehicle application against the listed fitment for your Chevrolet C10, C20, C30, K10, K20, K30 or GMC C1500, C2500, C3500, K1500, K2500, K3500. Inspect fuel lines, sending unit components, straps, and seals during service so the replacement tank can be installed with the rest of the fuel system in proper condition.

Quality Assurance

Spectra Premium fuel tanks are produced with engineering and quality control processes intended to match OE replacement standards for dependable fit and function.

• Fits 1975-1981 Chevrolet C10, N/A, fuel tank dimensions: 42-7/8 in. x 14-1/8 in. x 11 in.; lock ring kit included; 16 gallons; positioned ahead of rear axle.
• Fits 1975-1981 Chevrolet C20, N/A, fuel tank dimensions: 42-7/8 in. x 14-1/8 in. x 11 in.; lock ring kit included; 16 gallons; positioned ahead of rear axle.
• Fits 1975-1981 Chevrolet C30, N/A, fuel tank dimensions: 42-7/8 in. x 14-1/8 in. x 11 in.; lock ring kit included; 16 gallons; positioned ahead of rear axle.
• Fits 1975-1981 Chevrolet K10, N/A, fuel tank dimensions: 42-7/8 in. x 14-1/8 in. x 11 in.; lock ring kit included; 16 gallons; positioned ahead of rear axle.
• Fits 1975-1981 Chevrolet K20, N/A, fuel tank dimensions: 42-7/8 in. x 14-1/8 in. x 11 in.; lock ring kit included; 16 gallons; positioned ahead of rear axle.
• Fits 1977-1981 Chevrolet K30, N/A, fuel tank dimensions: 42-7/8 in. x 14-1/8 in. x 11 in.; lock ring kit included; 16 gallons; positioned ahead of rear axle.
• Fits 1979-1981 GMC C1500, N/A, fuel tank dimensions: 42-7/8 in. x 14-1/8 in. x 11 in.; lock ring kit included; 16 gallons; positioned ahead of rear axle.
• Fits 1979-1981 GMC C2500, N/A, fuel tank dimensions: 42-7/8 in. x 14-1/8 in. x 11 in.; lock ring kit included; 16 gallons; positioned ahead of rear axle.
• Fits 1979-1981 GMC C3500, N/A, fuel tank dimensions: 42-7/8 in. x 14-1/8 in. x 11 in.; lock ring kit included; 16 gallons; positioned ahead of rear axle.
• Fits 1979-1981 GMC K1500, N/A, fuel tank dimensions: 42-7/8 in. x 14-1/8 in. x 11 in.; lock ring kit included; 16 gallons; positioned ahead of rear axle.
• Fits 1979-1981 GMC K2500, N/A, fuel tank dimensions: 42-7/8 in. x 14-1/8 in. x 11 in.; lock ring kit included; 16 gallons; positioned ahead of rear axle.
• Fits 1979-1981 GMC K3500, N/A, fuel tank dimensions: 42-7/8 in. x 14-1/8 in. x 11 in.; lock ring kit included; 16 gallons; positioned ahead of rear axle.