Ignition Knock (Detonation) Sensor

Part Number 242-91016 (117547730)

UPC: 724620127021

Package contents: 1 Each per Box

Select vehicle for guaranteed fit

Color

$41.04

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.

Buick

1988-1993 Century
1995 Commercial Chassis
1988-1990 Electra
1988-1994 LeSabre
1991-1995 Park Avenue
1988-1991 Reatta
1990-1994 Regal
1988-1993, 1995 Riviera
1994-1995 Roadmaster
1988-1993 Skylark

Cadillac

1990 Brougham
1995 Commercial Chassis
1994-1995 Fleetwood

Chevrolet

1990-1992 Beretta
1993, 1995 C1500
1993, 1995 C2500
1990-1995 Camaro
1988-1990, 1994-1995 Caprice
1992-1995 Corvette
1993-1995 G10
1993-1995 G20
1994-1995 Impala
1993, 1995 K1500
1993, 1995 K2500
1991-1995 Lumina
1992-1994 Lumina APV
1995 Monte Carlo
1988 Nova

GMC

1993, 1995 C1500
1993-1995 C2500
1993-1995 G1500
1993-1995 G2500
1993, 1995 K1500
1993-1995 K2500

Oldsmobile

1992-1995 88
1990-1995 98
1992-1993 Achieva
1987 Calais
1988-1991 Custom Cruiser
1988-1991 Cutlass Calais
1989-1993 Cutlass Ciera
1988, 1990-1995 Cutlass Supreme
1988-1990 Delta 88
1992-1994 Silhouette
1988-1992 Toronado

Pontiac

1988-1995 Bonneville
1990-1995 Firebird
1988-1993 Grand Am
1990-1995 Grand Prix
1988-1989 Safari
1992-1994 Trans Sport

Features & benefits

Built for Harsh Environments: Engineered to resist heat, vibration, and oil exposure for long-lasting signal reliability.
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.
Restores Ignition Timing Accuracy: Supports optimal fuel efficiency, performance, and emissions by correcting spark advance during knock conditions.
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	MX
Length	54.0
Mounting Hardware Included	No
Street Legal	Yes
Terminal Gender	Male
Terminal Quantity	1
Terminal Type	Bullet
Wiring Harness Included	No

Warranty

1 Year