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Fits Briggs & Stratton models 400417, 400437, 400447, 400707, 400777, 401407, 401411, 401415, 401417, 401431, 401437, 401707, 402415, 402417, 402431, 402435, 402437, 402445, 402447, 402451, 402707, 402777, 404417, 404437, 404447, 404707, 404777, 40A777, 421417, 421431, 421437, 421707, 422431, 422432, 422435, 422436, 422437, 422442, 422445, 422447, 422707, 422777, 42A707, 42A777, 42B707, 42C777, 42D707, 42D777, 42E707, 42E777, 460707, 460777, 461707, 461777, 462707, 463707. Heavy duty, fits most twin cylinder engines. 16 tooth gear.-
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Part No. 55-2762
OEM Part No: 399928, 495100, 498148, 498594, 498595