The alternative part number are:
531658 , 444918 , 445754, 37231G, 446021
1PCS #446021 BRAND NEW HIGH QUALITY BELT SHAFT(Top vertical ) BEVEL GEAR.
Please pay attention to the sizes posted in the photo from this listing, especially the gear’s height, the height is about 20.5m
The installation position of the gear is marked with the red arrow in the posted photo from this listing.
Compatible with SINGER sewing machine models:241, 242, 247, 248, 249, 252, 257, 258, 259, 263, 267, 288, 300, 353, 354, 360, 362, 367, 368, 547, 563, 588, 1200, 1263, 1280, 2404, 31000 series: 3101, 3102, 3103, 3105, 3130, 3140, 6021, some 6100 series: 6174, 7100 series: 7100, 7101, 7102, 7104, 7105, 7106, 7108, 7110, 7136, 7171, 7174, 8100 (some of these series did not use this gear they use timing belt #423107-001. This gear has a set screw, not for models which use a pin (pin type gear no longer available, #37231), 964, 966, 968, 972, 974
Compatible with upper horizontal gear #319695