Walker Products Cam/Crank Sensors are engineered using the highest quality components to ensure proper OE fit, form and function. Walker, one of the largest manufacturers of Fuel System Components and Engine Management Devices, has served the needs of the worldwide automotive aftermarket since 1946. As a ISO 9001: 2008 / TS16949 certified company we are committed to supplying the highest quality products. Vehicle Fitment: 2003-2007 Oldsmobile Alero 3. 4L, Pontiac Aztek 3. 4L, Buick Century 3. 1L, Chevrolet Equinox 3. 4L, Pontiac G6 3. 5L, Pontiac Grand Am 3. 4L, Pontiac Grand Prix 3. 1L, Chevrolet Impala 3. 4L, Chevrolet Malibu 3. 1L, 3. 5L, Pontiac Montana 3. 4L, 3. 5L, Chevrolet Monte Carlo 3. 4L, Saturn Relay 3. 5L, 3. 9L, Buick Rendezvous 3. 4L, 3. 5L, Oldsmobile Silhouette 3. 4L, Buick Terraza 3. 5L, Pontiac Torrent 3. 4L, Chevrolet Uplander 3. 5L, Chevrolet Venture 3. 4L