This is a Valeo Alternator for the 2001-On Hyundai Sonata and Santa Fe and KIA Optima With the 2.5L or 2.7L Engines. This Unit Looks Very Similar to the Mando 13782 Used Just Previous to This on the Sonata, Except the Plug Protrudes on the 13945 Outwards at 1:00 (Instead of a Flush Mounted Plug at12:00) and the 13945 is Much Thinner in the Rear. The Mounting of Both Units Appears to Be Identical, and Both Use a 6-Groove Pulley. The 13782 and 13945 Will Not Interchange Due to the Fact That the 13945 Has a Single Pin in the Plug, While the 13782 Has Both (2) Pins in the Same Shaped Plug. The Single Terminal in the Plug is an "L" Terminal (Not a "P-D" Plug as Previously Thought).