Mueller Oshkosh Hours... Sales: Service: Parts: Monday - Thursday 8:00 am - 8:00 pm Friday 8:00 am - 6:30 pm Saturday 8:00 am - 4:00 pm   Mon - Fri 7:30 am - 5:00 pm Saturday 7:30 am - 11:30 am Mon - Fri 7:30 am - 5:00 pm Saturday 7:30 am - 11:30 am Please enjoy your stay at Mueller Oshkosh Mueller Oshkosh 2060 Omro Rd Oshkosh, WI 54904 Phone: (920) 231-5010 ext. 40 - Contact: E-Mail