Compatible with the following:

Milwaukee 6515-20-(971A)

Milwaukee 6515-20-(971B)

Milwaukee 6515-20-(971C)

Milwaukee 6515-50(971C)

Milwaukee 6515-51(971A)

Milwaukee 6515-51(971B)

Milwaukee 6516-02-(918B)

Milwaukee 6516-02-(918C)

Milwaukee 6516-21(918A)

Milwaukee 6516-51-(918A)

Milwaukee 6516-51-(918B)

Milwaukee 6517-(858A)

Milwaukee 6517-(858B)

Milwaukee 6517-(858C)

Milwaukee 6517-20-(917A)

Milwaukee 6517-20-(917B)

Milwaukee 6517-20-(917C)

Milwaukee 6517-20-(917D)

Milwaukee 6517-20-(917E)

Milwaukee 6518-(859A)

Milwaukee 6518-(859B)

Milwaukee 6518-(859C)

Milwaukee 6518-(859D)

Milwaukee 6518-(859E)

Milwaukee 6518-(859F)

Milwaukee 6518-(859G)

Milwaukee 6518-(985C)

Milwaukee 6518-(985D)

Milwaukee 6518-(985E)

Milwaukee 6518-(985F)

Milwaukee 6518-(985G)

Milwaukee 6518-4(859A)

Milwaukee 6518-4(859B)

Milwaukee 6518-51-(859C)

Milwaukee 6518-51-(859D)

Milwaukee 6518-51-(859E)

Milwaukee 6518-55(859B)

Milwaukee 6518-55(859C)

Milwaukee 6518-55(859D)

Milwaukee 6518-75-(985A)

Milwaukee 6519-21(899A)

Milwaukee 6519-50(899A)

Link to info:

https://www.repairtoolparts.com/milwaukee-parts/miscellaneous-parts/milwaukee-45-12-0510-gear-case-insulator

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