Hey there, having some weird engine issues like rough starts, stalling, or hesitation? It might be your crankshaft position sensor giving up. This Mteycei replacement sensor is a direct swap for the OEM part numbers 9091905012, 9008019009, PC79, and a few others. It's built to meet or even beat the original equipment quality — they test each one before it ships. Made from tough, durable materials so it lasts. Now, fitment is key here: it works with a bunch of Lexus and Toyota models. For Lexus, that's the 1994-2003 ES300 3.0L, 2004-2006 ES330 3.3L, 1999-2003 RX300 3.0L, 2004-2006 RX330 3.3L, and 2006-2008 RX400H 3.3L. For Toyota, it fits the 1995-2004 Avalon 3.0L, 1994-2006 Camry (both 3.0L and 3.3L), 2001-2010 Highlander (3.0L and 3.3L), 1998-2006 Sienna (3.0L and 3.3L), and 1999-2008 Solara 3.3L. Phew, that's a lot! The kit comes with one sensor. They back it with a one-year warranty, so you can buy with confidence. Just a super important reminder: please, please double-check your car's exact make, model, year, engine size, and trim before you order. Compare the part number and look at the pictures to make absolutely sure it's the right one for your ride. Save yourself the hassle of a return!