How to Identify Ford/Autolite/Motorcraft Carburetors: Finding the Carb Number

Ford Carburetor Number Tags and Stamps

Ford carburetors came with tags, typically attached to the top of the carburetor. Some models were stamped with a partial carburetor number on the face of the mounting flange near the front left.

Tag Numbers - 2100, 4100

Ford 4100 carburetor number location

Ford 4100 tag. Most Ford carburetors had similar tags.


detail of carburetor number on Ford 4100 carburetor

This carburetor is marked with the carburetor number C3AF-BV:

  • C = 1960s
  • 3 = 1963 (design model year)
  • A = full size Ford (original application)
  • F = engine accessories
  • BV = design revision (major)

Build date code A 3KB:

  • A = design change (minor)
  • 3 = 1963
  • K = October
  • B = second week

The original application for C3AF-BV was a 1963 390 CID engine in a full size car.

Stamped Numbers - 2100, 4100

carb number location on Ford 4100
Ford 4100 stamped number.

detail of carburetor number on Ford 4100 carburetor

The number stamped in this location is a partial carburetor number, usually consisting of the year, model and revision code.

The number 6ZF E is equivalent to C6ZF-E or C6ZE-E. In this case, it's C6ZF-E, which is for a 1966 Comet, Fairlane or Mustang 289, A/T w/ Thermactor.

Tag Numbers - 4300, 4350

Ford 4350 carburetor tag number location
Ford 4350 tag.

detail of carburetor number on Ford WW carburetor

This carburetor is marked with the carburetor number D7UE-ASA:

  • D = 1970s
  • 7 = 1977 (design model year)
  • A = Bronco, Econoline Van (original application)
  • F = engine
  • ASA = design revision (major)

Build date code A 3KB:

  • A = design change (minor)
  • 7 = 1977
  • M = December
  • 22 = December 22nd

The original application for D7UE-ASA was a 1977 Ford 460 in a truck.

Stamped Numbers - 4300, 4350

Ford 4350 stamped number location
Ford 4350 stamped number on front left edge of throttle body (flange).

detail of stamped carburetor number on Ford 4300 carburetor

This carburetor is marked with the carburetor number D0OF-AB:

  • D = 1970s
  • 0 = 1970 (design model year)
  • O = mid-size - Fairlane, Torino (original application)
  • F = engine
  • AB = design revision (major)

A date code is not shown.

The original application for D0OF-AB was a 1970 Torino, 351C M/T.

Numerical indexes

Once you have the carburetor number, you can look up the basic parts in the numerical index, which also links to a page with a comprehensive parts listing for each Carter carburetor number:

Ford carburetor numerical list

The Carburetor Doctor