36 OIL DRAIN PLUGS: M13 x 1.25 (x6), M13 x 1.5 (x6), M15 x 1.5 (x6), M17 x 1.5 (x6), M20 x 1.5 (x6), M22 x 1.5 (x6);. - 72 x COPPER WASHERS: 24 x M13, 12 x M15, 12 x M17, 12 x M20, 12 x M22;. Take a washer through the new drain plug and then insert a new oil drain plug;.
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