WVE BY NTK. Warranty Duration. WE'RE CONFIDENT YOU'LL SOON MAKE US YOUR FIRST CHOICE FOR ALL YOUR AUTO PARTS NEEDS. 903, C00558, EC1650, PT1651, PTC1717, S-1875, WPT-762. Part Numbers. AUTOZONE/BLUE STREAK, AUTOZONE/DURALAST-WELLS, BWD AUTOMOTIVE, CARQUEST PREMIUM VEHICLE SOLUTIONS, ECHLIN, MOTORCRAFT, SMP, STANDARD MOTOR PRODUCTS, WELLS.