A 1pc belt for an automatic transmission system in a 2003 Ford Taurus is likely to be the best fit for installation and repair purposes.
1pc PL V-ribbed Belt, 330L 340L 350L 360L 365L 6 ribs 8 ribs Ribbed Poly-V Belt Rubber Transmission Belt HWWEI(330L-6ribs)
1pc PL V-ribbed Belt, 690L 700L 710L 715L 720L 6 ribs 8 ribs Ribbed Poly-V Belt Rubber Transmission Belt HWWEI(720L-8ribs)
1pc PL V-ribbed Belt, 920L 925L 930L 950L 975L 6 ribs 8 ribs Ribbed Poly-V Belt Rubber Transmission Belt HWWEI(920L-8ribs)
1pc PL V-ribbed Belt, 760L 765L 770L 775L 780L 6 ribs 8 ribs Ribbed Poly-V Belt Rubber Transmission Belt HWWEI(780L-10ribs)
1pc PL V-ribbed Belt, PL1050 PL1054 PL1060 PL1065 PL1067 6-peak 8-peak Ribbed Poly-V Belt Transmission Belt HWWEI(PL1054-6Peak)
1pc PL V-Ribbed Belt, PL2235 PL2240 PL2250 PL2256 PL2260 Rubber Poly V Belt 4.7mm rib pitch HWWEI(PL2240-16ribs)