Autolite Ford Motorcraft Main Jet size [A120-4-XX] 

**JET SOLD SINGULARLY**

Autolite; Ford; Motorcraft main jets suit 1100; 1101; 2100; 2150; 4100; 4300; 4350.

Priced per each. order by size .048, .058, etc. You will find the current jet number stamped on the top of the jet.  

These jets have a 5/16" thread (.310")

Jet Body Diameter: 3/8" (.375")

Jet Overall Height: .350"

Some of the older 2100 & 4100 Autolites use smaller jets. Typically 1963 and earlier.  See Part No H120-40-XX for these jets