Sprocket

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183-B7

STIHL: 030, 031, 032, 040, 041, 041 (after n° 5664891)

Replaces OEM:
52775, ST309B7N, 11100071017

For series after code

Teeth: 7
H: 30,7
Pitch: .404”
Ø inner side clock: 68, 8
Ø inside: C=14,8