Walker Products Engine Management and Oxygen/Air-Fuel sensors have been engineered and developed to be an Original Equipment Manufacturers replacement for many vehicles worldwide. Every part number is manufactured for the specific application, fitment position on the vehicle, and will provide the relevant diagnostic system feedback as required by the ECU. Newer vehicles will store fault codes in the ECU, some will relate to the affected sensor and its associated systems. A failed sensor might make itself known by causing the engine to run poorly, increase fuel consumption, exhaust emissions, or illuminating a (MIL) malfunction indicator light. The sensor, wiring harness, and connector should also be checked for physical damage. This will most likely also cause their operational life to be shortened. We are an Automotive ISO9001/TS 16949 certified company, with un-paralleled customer service, marketing, and shipping. Our electronic and paper catalogs are designed for today's fast paced marketplace, along with our eye catching packaging. Since 1946, Walker Products has been the number one choice for the engine management sensors and fuel system components needed for your vehicle. Vehicle Fitment: 1979-2002 Cadillac 60 Special 4.9L, Oldsmobile 98 5.0L, 5.7L, Cadillac Allante 4.1L, 4.5L, Chevrolet Bel Air 4.4L, 5.0L, Pontiac Bonneville 3.8L, 4.3L, 4.9L, 5.0L, 5.7L, GMC Caballero 3.8L, 5.0L, Chevrolet Camaro 3.8L, 4.4L, 5.0L, 5.7L, Chevrolet Caprice 3.8L, 4.4L, 5.0L, 5.7L, Pontiac Catalina 3.8L, 4.3L, 4.9L, 5.0L, 5.7L, Buick Century 3.8L, 4.3L, 4.4L, 4.9L, 5.0L, Chevrolet Chevette 1.6L, Chevrolet Citation 2.5L, 2.8L, Jeep CJ5 2.5L, Jeep CJ7 2.5L, Cadillac Commercial Chassis 4.5L, 4.9L, American Motors Concord 2.5L, Chevrolet Corvette 5.0L, 5.7L, Oldsmobile Custom Cruiser 5.7L, Oldsmobile Cutlass Calais 3.8L, Oldsmobile Cutlass Cruiser 3.8L, 5.0L, Oldsmobile Cutlass Salon 3.8L, 4.3L, Oldsmobile Cutlass Supreme 3.8L, Oldsmobile Cutlass 3.8L, 4.3L, 5.7L, Oldsmobile Delta 88 3.8L, 5.7L, Cadillac DeVille 4.1L, 4.5L, 4.9L, 5.7L, 6.0L, American Motors Eagle 2.5L, Chevrolet El Camino 3.8L, 4.4L, 5.0L, Cadillac Eldorado 4.1L, 4.5L, 4.9L, 5.7L, 6.0L, Buick Electra 4.1L, 4.9L, 5.0L, 5.7L, Buick Estate Wagon 4.9L, 5.0L, 5.7L, Pontiac Firebird 3.8L, 4.3L, 4.9L, 5.0L, Oldsmobile Firenza 1.8L, Cadillac Fleetwood 4.1L, 4.5L, 4.9L, 5.7L, 6.0L, Pontiac Grand Am 4.9L, 5.0L, Pontiac Grand LeMans 3.8L, 4.3L, 4.9L, 5.0L, Pontiac Grand Prix 3.8L, 4.3L, 4.9L, 5.0L, Chevrolet Impala 3.8L, 4.4L, 5.0L, 5.7L, Pontiac J2000 1.8L, Daewoo Lanos 1.6L, Daewoo Leganza 2.2L, Pontiac LeMans 3.8L, 4.3L, 4.9L, 5.0L, Buick LeSabre 3.8L, 4.1L, 4.9L, 5.0L, 5.7L, Chevrolet Malibu 3.8L, 4.4L, 5.0L, 5.7L, Chevrolet Monte Carlo 3.8L, 4.4L, 5.0L, Chevrolet Monza 2.5L, 3.8L, Chevrolet Nubira 2.0L, Oldsmobile Omega 2.5L, 2.8L, Pontiac Phoenix 2.5L, 2.8L, Buick Regal 3.8L, 4.3L, 4.4L, 4.9L, 5.0L, Buick Riviera 3.8L, 4.1L, 5.0L, 5.7L, Jeep Scrambler 2.5L, Cadillac Seville 4.1L, 4.5L, 4.9L, 5.7L, 6.0L, Buick Skyhawk 1.8L, 3.8L, Buick Skylark 2.5L, 2.8L, 3.8L, 5.0L, 5.7L, American Motors Spirit 2.5L, Oldsmobile Starfire 2.5L, 3.8L, Pontiac Sunbird 2.5L, 3.8L, Oldsmobile Toronado 5.0L, 5.7L