Milwaukee Twins Oil Tank Plug The Milwaukee Twins Oil Tank Plug, crafted from durable rubber and capped with an elegant chrome finish, offers both functionality and style. Compatible with most oil tanks that accommodate push-pull type plugs, it guarantees a tight and straightforward installation. Formerly offered under the J&P Cycles brand. Features: Great looks and easy access Constructed of rubber with a chrome cap Works with oil tanks that accept a push-pull type oil plug