Troy Troy Napa Auto Parts Address606 Missoula AvenueTroy, MT 59935 Phone 406-295-5466 Store OwnerSam Shupe Subscribe and Save Facebook Twitter Youtube SHOP ONLINE VISIT WEBSITE HoursMonday8AM–6PMTuesday8AM–6PMWednesday8AM–6PMThursday8AM–6PMFriday8AM–6PMSaturday8:30AM–4PMSundayClosed Monthly Savings