Shop for Parts › NOS 1997-2003 Ford F150 Drive Belt Tensioner XL3E-6B209-CA Image 1 of 3 Image 2 of 3 Image 3 of 3 NOS 1997-2003 Ford F150 Drive Belt Tensioner XL3E-6B209-CA $39.00 This is a brand new genuine Ford NOS drive belt tensioner with pulley. This has the Ford engineering number XL3E-6B209-CA. Add To Cart Added! This is a brand new genuine Ford NOS drive belt tensioner with pulley. This has the Ford engineering number XL3E-6B209-CA.