Walker Products 242-91023 Ignition Knock Sensor Full Service Kit, Compatible with Pontiac Firebird 1990-1992, Cadillac Fleetwood 1993, Chevrolet 1990-1997, GMC 1991-1997

The Walker Products 242-91023 Ignition Knock Sensor is an OE Replacement component that monitors engine vibrations to detect knocking or detonation events. These automotive replacement detonation sensors are a critical part of the engine control system, allowing the ECU to adjust ignition timing in real time to prevent spark knock—a condition that can cause internal engine damage, reduced fuel economy, and drivability issues. Each engine knock sensor is engineered to match OE specifications for frequency range, sensitivity, and electrical output. Our knock sensors are tuned to detect the specific resonant frequency of knock in each engine platform, enabling precise spark retard when knock is detected. Built from high-quality, heat- and oil-resistant materials, these sensors are designed to endure the harsh conditions of the engine block and cylinder head. With exact OE fitment, they install directly into the original threaded locations and connect using factory-style electrical terminals. Our sensors restore proper knock detection, improve engine safety, and support optimal ignition performance across a wide range of gasoline applications. Compatible with Cadillac Fleetwood 1993, Chevrolet P30 1990-1997, G3500 1991-1996, Pontiac Firebird 1990-1992 + More. See Amazon Confirmed Fit to check your vehicle's compatibility.

• Knock Sensor: A high-quality knock sensor for optimal engine performance
• Dimensions: 1 x 5.1 x 2.6 inches (width x length x height)
• Model Number: 242-91023, for specific automotive applications
• Product Type: Electronic Sensor, designed for precision and accuracy