New Flat Back Style Headlight Ring Clamp with Mounting Screw for International and IH Farmall Cub (up to serial number 210000),  Cub LoBoy (up to serial number 10000),  Super A (Late; 1951 and  up),  Super C (1951 and up),  Super H,  Super M,  Super MD,  Super MDTA,  Super MDV,  Super MTA,  Super W4,  Super W6,  Super WD6 (SN: 3951 and up),  Super W6TA,  Super W9,  Super WD6TA,  Super WD9,  WR9S,  100,  130,  200,  230,  300,  330,  350,  400,  450 tractors.

IH Wheatland Tractors:  400,  450.

Replaces Case IH headlight ring clamp part number 358891R91.

This style light assembly this clamp ring fits is also referred to a "pancake style" light due to its flattened back.  This style of light is shown in the last picture for reference only.