Thread Diameter: 5/16"
Overall Length: .890" (not including needle)
Stock Replacement .101" diameter for Rochester carburetors. Compatible with new alcohol enhanced fuels.
Rochester 4G carburetors
Rochester 2G carburetors
Rochester H,HV carburetors
Note: 4G or 4 Jet carburetors use 2 needle and seat assemblies per carburetor, and may be different sizes in the primary and secondary sides.