I have been searching for wheel pant brackets for my 1961 150A. I found one for the right side now looking for the left side. Part number is 0441184-5. I have posted a picture of the right side bracket in the classified section (under wanted) if anyone needs to see what it looks like. Hoping that someone might have one.
The wheel fairings and brackets that are correct for a your aircraft are peculiar to the 150A and 150B only. The part number you cite is for a 150C. Not sure what the difference is.
150A's from serial 15059019 up thru 15059118 (the first 100 of the '61 150A models), were factory equipped with the Goodyear brakes, the caliper hung directly below the axle and gear leg. Beginning with 15059119 up thru 15059350 (the end of the 150A) and continuing up thru 15059700 (the end of the 150B models) the aircraft were equipped with Cleveland wheels and brakes, which mounted the caliper behind the axle and gear leg. This is the type of bracket (as far as the brake caliper cutout goes) that you show in the classifieds.
This is, of course, all dependent on what size main wheels you have. Beginning with 1963 model 150C's there was available an optional 6.00x6 main tire and wheel, and possibly marketed as a retrofit Accessory Kit for earlier models. It appears that wheel pants were not even available for the '63 model with the large wheels (based on serial numbers in the parts book) and only beginning with the '64 model, 15060088 does the parts book show a wheel pant for the large main wheel.
Charles