New Non- Pressurized Radiator Cap for the following tractor models:

Allis Chalmers - WC,  WF (Original Style for the Unstyled Model).

Replaces AGCO Allis Radiator Cap part numbers:  206622,  70206622.

Oliver Built Cockshutt Tractors:  60,  70.

Replaces Oliver Radiator Cap part numbers:  B507.

International, McCormick-Deering, and IH Farmall Tractors and Crawlers - A,  AV,  B,  BN,  [ C,  H,  HV,  I4,  I6,  I9,  M,  MV,  O4,  O6,  Super A,  W4,  W6,  W9 (Early,  Using Unpressurized Cap) ],  [ T6,  TD6 (up to Serial Number : 37982,  Using Unpressurized Cap) ],  [ T9,  TD9 (up to Serial Number : 57554, Using Unpressurized Cap) ].

Replaces Case IH Radiator Cap part number: 43983D.

Massey Harris Tractors - Challenger,  Pacemaker.

Replaces Massey Harris Radiator Cap part number:  13509G.

Oliver Tractors - [ Super 55,  Super 66,  55,  60,  66,  70,  77,  88 (Without Pressurized System) ].

Replaces Oliver Radiator Cap part numbers:  1B507,  B507.

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This radiator cap is for non-pressurized systems only.

Cap fits on the inside of the radiator neck.  This cap measures 2.108" from tab to tab.  The inside diameter of the cap is 2.806".  The outside diameter is 2.886".  The tang width is .398".  The inside center diameter is 1.845".