Hygrade FL24 Carburetor Float

Hygrade FL24 Carburetor Float for Rochester 4 Bbl

Hygrade FL24 is a nitrophyl carburetor float for Rochester 4, 2 Bbl applications. It supports stable fuel level control in Rochester 4MV and related carburetor setups used across Cadillac, Oldsmobile, Buick, Chevrolet, and Pontiac vehicles from 1966-1977.

Key Features

• Nitrophyl construction for consistent buoyancy in carburetor fuel bowls
• Designed for Rochester 4, 2 Bbl carburetor make and model applications
• Direct replacement float for Rochester 4MV-style carburetors
• Fits a wide range of classic GM applications, including Oldsmobile Cutlass, Cadillac DeVille, and Pontiac GTO
• Hygrade FL24 part number for accurate catalog matching

Product Details

This carburetor float is built for Rochester 4, 2 Bbl carburetors and is made from nitrophyl, a material commonly used for fuel-level control in vintage carburetion systems. Hygrade has served the automotive aftermarket since 1919, and this FL24 float reflects that long-running focus on carburetion coverage for classic vehicles. This part cross-references CF250 and FL84 for the same application.

Use Hygrade FL24 when servicing Rochester 4MV and related Rochester carburetor assemblies on vehicles such as 1971-1972 Oldsmobile Cutlass, 1968-1969 Chevrolet Camaro, and 1967-1969 Pontiac GTO. The part number FL24 also helps identify the correct replacement when matching older Rochester carburetor service needs.

Common Problems It Can Help Address

• Incorrect fuel level in the carburetor bowl
• Flooding caused by a saturated or worn float
• Fuel starvation from a float that no longer maintains proper buoyancy
• Rough idle or drivability issues tied to unstable fuel metering
• Hard starting on Rochester-equipped classic GM vehicles

Installation Notes and Tips

Verify the Rochester carburetor model and service number before installation. Confirm float height and drop during assembly, and inspect the needle and seat, bowl gasket, and fuel passages for wear or contamination. For best results, compare the removed float to the FL24 before final carburetor setup.

Quality Assurance

Hygrade has supported the automotive aftermarket since 1919, with a focus on carburetion coverage and replacement quality for classic applications. FL24 is specified for Rochester 4, 2 Bbl fitments across a broad range of 1966-1977 GM vehicles, including Oldsmobile, Cadillac, Buick, Chevrolet, and Pontiac models.