NAPA Mack Auto Parts 908 W. Rex Allen Drive, Willcox, AZ 85643 (520) 384-2208 (520) 384-2287 NAPA AUTO&TRUCK PARTS 908 W. Rex Allen Drive (Next to Ace) Mack Auto Parts is owned by Justin and Heather Mack, who purchased Willcox Auto Parts in 2019 and bring their many years of family experience to the store. The auto and truck parts store features many items including: a full line of auto parts; custom paint mixing; turn brake drums; bucket teeth; batteries for cars, heavy duty trucks and farm and industrial tractors. Also, welding gas and supplies; heavy-duty truck air brake parts; heavy-duty truck wheel parts; heavy-duty truck wheel bearings and seals; agricultural bearings; and hydraulic hoses. Hours are 6:30 a.m. to 6:00 p.m. Monday through Friday; 7 a.m. to 5 p.m. Saturday; and 7 a.m. to 3 p.m. Sunday. VISIT NAPA'S LARGEST FLOOR ROOM IN ARIZONA NAPA Mack Auto Parts 908 W. Rex Allen Drive , Willcox , AZ 85643 ( 520 ) 384-2208 ( 520 ) 384-2287 NAPA AUTO & TRUCK PARTS 908 W. Rex Allen Drive ( Next to Ace ) Mack Auto Parts is owned by Justin and Heather Mack , who purchased Willcox Auto Parts in 2019 and bring their many years of family experience to the store . The auto and truck parts store features many items including : a full line of auto parts ; custom paint mixing ; turn brake drums ; bucket teeth ; batteries for cars , heavy duty trucks and farm and industrial tractors . Also , welding gas and supplies ; heavy - duty truck air brake parts ; heavy - duty truck wheel parts ; heavy - duty truck wheel bearings and seals ; agricultural bearings ; and hydraulic hoses . Hours are 6:30 a.m. to 6:00 p.m. Monday through Friday ; 7 a.m. to 5 p.m. Saturday ; and 7 a.m. to 3 p.m. Sunday . VISIT NAPA'S LARGEST FLOOR ROOM IN ARIZONA