Yes, Cat was late in supplying their own blades but they could be retro mounted to the earlier models. Your 6W9189 is more likely to be for the #44 hydraulic control. Blade numbers would typically be 6Fxxxx number for the wide (angle) blade. A couple of pictures would help solve identification.
Our channel highlights machines from the earliest Holt and Best track-type tractors, equipment from the start of Caterpillar in 1925, up to units built in the mid-1960s.
Chapter Nineteen
| 1234 Carngham-Lake Goldsmith Rd, Lake Goldsmith, Victoria, 3373, AustraliaChapter Two
| Stradsett, Nr Downham Market. Norfolk PE33 9HA UKChapter Two
| Faulkner Farm, West Drove, Wisbech, Cambridgeshire, PE14 7DP, UKChapter Nineteen
| Cnr Hiller Lane and Ballarat Road, Hamilton, Vic, 3300
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