Ignition Knock (Detonation) Sensor

Part Number 242-1023 (117547720)

UPC: 724620074615

Package contents: 1 Each per Box

Select vehicle for guaranteed fit

Color

$41.61

In stockShips by 6th Nov

Description

Walker Products Ignition Knock (Detonation) Sensors are OE Replacement components that monitor engine vibrations to detect knocking or detonation events. These 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. Walker Knock Sensors are engineered to match OE specifications for frequency range, sensitivity, and electrical output. Each unit is tuned to detect the specific resonant frequency of knock in a given 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, Walker Knock Sensors install directly into the original threaded locations and connect using factory-style electrical terminals. Whether addressing a fault code (e.g., P0325, P0330), correcting timing issues, or replacing a failed sensor, Walker Knock Sensors restore proper knock detection, improve engine safety, and support optimal ignition performance across a wide range of gasoline applications.

Fitment

This part fits the following vehicles.

Cadillac

1993 Fleetwood

Chevrolet

1992 Astro
1991-1994 Blazer
1991-1993, 1995 C1500
1992-1995 C1500 Suburban
1991-1995 C2500
1992-1995 C2500 Suburban
1991-1995 C3500
1990-1992 Camaro
1990-1991 Corvette
1991-1994 G10
1991-1995 G20
1991-1996 G30
1991-1993, 1995 K1500
1992-1995 K1500 Suburban
1991-1995 K2500
1992-1995 K2500 Suburban
1991-1995 K3500
1990-1997 P30
1991 R1500 Suburban
1991 R2500 Suburban
1991 R3500
1995 Tahoe
1991 V1500 Suburban
1991 V2500 Suburban
1991 V3500

GMC

1991-1992, 1995 C1500
1992-1995 C1500 Suburban
1991-1993, 1995 C2500
1992-1995 C2500 Suburban
1991-1995 C3500
1991-1994 G1500
1991-1995 G2500
1991-1996 G3500
1991 Jimmy
1991-1993, 1995 K1500
1992-1995 K1500 Suburban
1991-1993, 1995 K2500
1992-1995 K2500 Suburban
1991-1995 K3500
1990-1997 P3500
1991 R1500 Suburban
1991 R2500 Suburban
1991 R3500
1992-1993 Safari
1991 Syclone
1992-1993 Typhoon
1991 V1500 Suburban
1991 V2500 Suburban
1991 V3500
1992-1995 Yukon

Pontiac

1990-1992 Firebird

Features & benefits

Restores Ignition Timing Accuracy: Supports optimal fuel efficiency, performance, and emissions by correcting spark advance during knock conditions.
Detects Engine Knock: Monitors vibration frequencies to detect detonation and prevent pre-ignition engine damage.
Exact OE Fit: Installs directly into original mounting locations using factory connectors and threads—no modifications required.
Built for Harsh Environments: Engineered to resist heat, vibration, and oil exposure for long-lasting signal reliability.
OE Replacement Sensitivity: Calibrated to match factory frequency response and output for seamless ECU integration and spark control.
Direct replacement - this ignition knock sensor is made to match the fit, function and performance of the original equipment on specified vehicles
Ideal solution - engineered to detect vibrations from knock and other combustion problems and replace a knock sensor that has failed
Durable construction - designed and manufactured to strict specifications for reliable performance
Trustworthy quality - backed by a team of product experts in the United States and more than a century of automotive experience

Specifications

Connector Gender	Female
Connector Quantity	1
Connector Shape	Circle
Country Of Origin	CN
Mounting Hardware Included	No
Street Legal	Yes
Terminal Gender	Male
Terminal Quantity	1
Terminal Type	Bullet
Wiring Harness Included	No

Warranty

1 Year