Carter Thermoquad accelerator pump plunger

As used in:

Chrysler Dodge Ford Lincoln Mercury Plymouth

Carter TQ, Thermoquad accelerator pump.
This pump is a florelastomer accelerator pump, which is ethanol resistant.
This accelerator pump has an overall length of 2.1".
There is another accelerator pump used in these TQ Carter carbs that is 1.945" overall length. CAP440

Measure carefully to ensure you get the correct plunger for your carby.