Ignition Knock (Detonation) Sensor

Part Number 242-1000 (117547689)

UPC: 724620074493

Package contents: 1 Each per Box

Select vehicle for guaranteed fit

Color

$50.64

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

1986-1987 Fleetwood

Chrysler

1980-1983 Cordoba
1983-1984 E Class
1985 Executive Limousine
1983-1984 Executive Sedan
1984-1989 Fifth Avenue
1981-1983, 1990 Imperial
1984-1986 Laser
1980-1994 LeBaron
1980-1981 Newport
1980-1990 New Yorker
1989 TC Maserati
1980-1988 Town & Country
1990 Town & Country

Dodge

1982-1983 400
1983-1988 600
1981-1989 Aries
1980 Aspen
1980 B100
1981-1991 B150
1980 B200
1981-1991 B250
1980 B300
1981-1991 B350
1985-1991 Caravan
1980 CB300
1983-1987 Charger
1980-1988 Colt
1981-1991 D150
1980 D200
1981-1991 D250
1980 D300
1981-1991 D350
1987-1994 Dakota
1984-1993 Daytona
1980-1989 Diplomat
1988-1993 Dynasty
1987-1989 Grand Caravan
1985-1989 Lancer
1985-1988 Mini Ram
1980-1983 Mirada
1980-1990 Omni
1983-1991 Ram 50
1980-1991 Ramcharger
1982-1984 Rampage
1987-1994 Shadow
1989-1995 Spirit
1980-1981 St. Regis
1981-1991 W150
1980 W200
1981-1991 W250
1980 W300
1981-1991 W350

Plymouth

1989-1995 Acclaim
1980 Arrow
1985-1988 Caravelle
1980-1982 Champ
1983 Colt
1984-1986 Conquest
1987-1989 Grand Voyager
1980-1989 Gran Fury
1980-1990 Horizon
1982-1983 PB150
1980 PB200
1981-1983 PB250
1980 PB300
1981-1983 PB350
1981-1989 Reliant
1980-1983 Sapporo
1983 Scamp
1987-1994 Sundance
1980-1981 Trailduster
1985 Turismo 2.2
1980 Volare
1984-1994 Voyager

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.
OE Replacement Sensitivity: Calibrated to match factory frequency response and output for seamless ECU integration and spark control.
Built for Harsh Environments: Engineered to resist heat, vibration, and oil exposure for long-lasting signal reliability.
Exact OE Fit: Installs directly into original mounting locations using factory connectors and threads—no modifications required.
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	Male
Connector Quantity	1
Connector Shape	Circle
Country Of Origin	TW
Length	46.3400
Mounting Hardware Included	No
Street Legal	Yes
Terminal Gender	Male
Terminal Quantity	1
Terminal Type	Threaded
Threaded End Diameter	9.5250
Wiring Harness Included	No

Warranty

1 Year