1968-1975 Corvette C3 ACDelco GF42 Quadrajet Short Internal Fuel Filter

1968-1975 C3 ACDelco GF42 Quadrajet Short Internal Fuel Filter

Protect your Corvette’s fuel system with an OEM-style filter that traps contaminants before they cause damage.

A clean fuel system is essential to performance and longevity, especially in early C3 Corvettes equipped with Rochester Quadrajet carburetors. This ACDelco GF42 short internal fuel filter installs directly where the fuel line enters the carburetor, just like the original. Its paper element construction ensures proper filtration to keep harmful debris from entering your carburetor and fuel system. A simple but critical replacement that preserves smooth operation and reliability.

Fits the Following Corvette Models:

• 1968–1975 Corvette (C3, Quadrajet carburetor equipped)

Material/Finish

• Paper filter element with metal end caps

• OEM-style reproduction for original Quadrajet fitment

Dimensions

• Length: 1 15/32" (37 mm)

• Diameter: 3/4" (19 mm)

Features/Benefits

• Direct replacement internal fuel filter for Rochester Quadrajet carburetors

• Mounts where the fuel line enters the carburetor

• Traps harmful contaminants to protect carburetor and fuel system

• Designed for early Quadrajet-equipped C3 Corvettes

• Sold individually

• GM reference part number GF42

Because Details Matter

Every drive depends on clean fuel delivery. A correct filter ensures your Quadrajet performs as designed while protecting your Corvette’s fuel system from premature wear. For restorers and drivers alike, it’s the small unseen parts like this that safeguard both performance and originality—because details matter.

Learn more from the Mid America Motorworks Knowledge Librarye:

Corvette How to Determine the Signs of a Bad Fuel Filter

Also known under these part numbers: (For reference only)

• 036666249781
• GF427