SU121 - 1982-99 Knock Sensor

SU121 - 1982-99 Knock Sensor


Out of Stock

MSRP: $35.99 ea
$31.99  ea


WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

1982-99 Knock Sensor

The Knock sensor generates an AC voltage created from the frequency of poor combustion in the engines combustion chambers. A mechanical fault within the motor creating a rapping sound may create false signals from this sensor. Ignition timing and the air/fuel ratio are adjusted to compensate for this condition.

The Knock sensor is located on the engine block and in some applications under the intake manifold. Failure Symptoms: Malfunction Indicator Light (MIL) illumination, failed emission te st, pre-detonation or "ping", increased emission levels, low engine power.

This is for use on part numberWE2311 Knock Sensor Pigtail

Buick Applications
  • 1982 - 1988 Buick Century
  • 1991 - 1996 Buick Commercial Chassis
  • 1983 - 1987 Buick Electra
  • 1983 - 1988 Buick LeSabre
  • 1983 - 1987 Buick Regal
  • 1991 - 1996 Buick Roadmaster
  • 1983 - 1987 Buick Skyhawk
  • 1983 - 1995 Buick Skylark
  • 1986 - 1987 Buick Somerset
  • 1985 - 1985 Buick Somerset Regal
Cadillac Applications
  • 1991 - 1992 Cadillac Brougham
  • 1996 - 1996 Cadillac Commercial Chassis
  • 1996 - 1996 Cadillac Fleetwood
Chevrolet Applications
  • 1993 - 1994 Chevrolet Beretta
  • 1983 - 1997 Chevrolet Camaro
  • 1983 - 1996 Chevrolet Caprice
  • 1995 - 1995 Chevrolet Cavalier
  • 1991 - 1992 Chevrolet Commercial Chassis
  • 1984 - 1996 Chevrolet Corvette
  • 1983 - 1996 Chevrolet Impala
Chevrolet Truck Applications
  • 1987 - 1987 Chevrolet Blazer
  • 1984 - 1986 Chevrolet C10 Suburban
  • 1988 - 1999 Chevrolet C1500
  • 1983 - 1986 Chevrolet C20 Suburban
  • 1988 - 1998 Chevrolet C2500
  • 1983 - 1986 Chevrolet K10 Suburban
  • 1988 - 1999 Chevrolet K1500
  • 1985 - 1985 Chevrolet K20
  • 1985 - 1986 Chevrolet K20 Suburban
  • 1988 - 1998 Chevrolet K2500
  • 1985 - 1985 Chevrolet K5 Blazer
  • 1987 - 1987 Chevrolet R10
  • 1987 - 1987 Chevrolet R10 Suburban
  • 1987 - 1987 Chevrolet R20
  • 1986 - 1993 Chevrolet S10
  • 1986 - 1989 Chevrolet S10 Blazer
  • 1999 - 1999 Chevrolet Truck
  • 1987 - 1987 Chevrolet V10
Chevrolet Van Applications
  • 1985 - 1985 Chevrolet Astro
  • 1996 - 1999 Chevrolet Express 1500
  • 1996 - 1998 Chevrolet Express 2500
  • 1983 - 1992 Chevrolet G10
  • 1983 - 1992 Chevrolet G20
  • 1985 - 1986 Chevrolet G30
  • 1990 - 1995 Chevrolet Lumina APV
GMC Truck Applications
  • 1983 - 1999 GMC C1500
  • 1983 - 1986 GMC C1500 Suburban
  • 1983 - 1998 GMC C2500
  • 1983 - 1986 GMC C2500 Suburban
  • 1986 - 1986 GMC C3500
  • 1983 - 1986 GMC Jimmy
  • 1983 - 1999 GMC K1500
  • 1988 - 1998 GMC K2500
  • 1987 - 1987 GMC R1500
  • 1987 - 1987 GMC R1500 Suburban
  • 1987 - 1987 GMC R2500
  • 1986 - 1990 GMC S15
  • 1986 - 1989 GMC S15 Jimmy
  • 1991 - 1993 GMC Sonoma
  • 1992 - 1996 GMC Truck
  • 1987 - 1987 GMC V1500
GMC Van Applications
  • 1983 - 1992 GMC G1500
  • 1983 - 1992 GMC G2500
  • 1988 - 1988 GMC G3500
  • 1985 - 1991 GMC Safari
Oldsmobile Applications
  • 1983 - 1988 Oldsmobile 98
  • 1985 - 1987 Oldsmobile Calais
  • 1984 - 1992 Oldsmobile Custom Cruiser
  • 1983 - 1988 Oldsmobile Delta 88
  • 1984 - 1986 Oldsmobile Firenza
  • 1984 - 1984 Oldsmobile Omega
  • 1983 - 1987 Oldsmobile Toronado
Pontiac Applications
  • 1983 - 1988 Pontiac Bonneville
  • 1983 - 1997 Pontiac Firebird
  • 1985 - 1995 Pontiac Grand Am
  • 1983 - 1995 Pontiac Grand Prix
  • 1984 - 1986 Pontiac Parisienne
  • 1987 - 1987 Pontiac Safari
  • 1987 - 1987 Pontiac Tempest
Pontiac Van Applications
  • 1990 - 1995 Pontiac Trans Sport

This product fits the following vehicle applications. Click to view individual years.

Product Specifications

Shipping Dimensions
  • Weight: 1 Lb
  • Dimensions: L: 3" x W: 2" x H: 2"
  • Ship Type: Standard |
Product Information
1982-99 Knock Sensor

The Knock sensor generates an AC voltage created from the frequency of poor combustion in the engines combustion chambers. A mechanical fault within the motor creating a rapping sound may create false signals from this sensor. Ignition timing and the air/fuel ratio are adjusted to compensate for this condition.

The Knock sensor is located on the engine block and in some applications under the intake manifold. Failure Symptoms: Malfunction Indicator Light (MIL) illumination, failed emission te st, pre-detonation or "ping", increased emission levels, low engine power.

This is for use on part numberWE2311 Knock Sensor Pigtail

Buick Applications
  • 1982 - 1988 Buick Century
  • 1991 - 1996 Buick Commercial Chassis
  • 1983 - 1987 Buick Electra
  • 1983 - 1988 Buick LeSabre
  • 1983 - 1987 Buick Regal
  • 1991 - 1996 Buick Roadmaster
  • 1983 - 1987 Buick Skyhawk
  • 1983 - 1995 Buick Skylark
  • 1986 - 1987 Buick Somerset
  • 1985 - 1985 Buick Somerset Regal
Cadillac Applications
  • 1991 - 1992 Cadillac Brougham
  • 1996 - 1996 Cadillac Commercial Chassis
  • 1996 - 1996 Cadillac Fleetwood
Chevrolet Applications
  • 1993 - 1994 Chevrolet Beretta
  • 1983 - 1997 Chevrolet Camaro
  • 1983 - 1996 Chevrolet Caprice
  • 1995 - 1995 Chevrolet Cavalier
  • 1991 - 1992 Chevrolet Commercial Chassis
  • 1984 - 1996 Chevrolet Corvette
  • 1983 - 1996 Chevrolet Impala
Chevrolet Truck Applications
  • 1987 - 1987 Chevrolet Blazer
  • 1984 - 1986 Chevrolet C10 Suburban
  • 1988 - 1999 Chevrolet C1500
  • 1983 - 1986 Chevrolet C20 Suburban
  • 1988 - 1998 Chevrolet C2500
  • 1983 - 1986 Chevrolet K10 Suburban
  • 1988 - 1999 Chevrolet K1500
  • 1985 - 1985 Chevrolet K20
  • 1985 - 1986 Chevrolet K20 Suburban
  • 1988 - 1998 Chevrolet K2500
  • 1985 - 1985 Chevrolet K5 Blazer
  • 1987 - 1987 Chevrolet R10
  • 1987 - 1987 Chevrolet R10 Suburban
  • 1987 - 1987 Chevrolet R20
  • 1986 - 1993 Chevrolet S10
  • 1986 - 1989 Chevrolet S10 Blazer
  • 1999 - 1999 Chevrolet Truck
  • 1987 - 1987 Chevrolet V10
Chevrolet Van Applications
  • 1985 - 1985 Chevrolet Astro
  • 1996 - 1999 Chevrolet Express 1500
  • 1996 - 1998 Chevrolet Express 2500
  • 1983 - 1992 Chevrolet G10
  • 1983 - 1992 Chevrolet G20
  • 1985 - 1986 Chevrolet G30
  • 1990 - 1995 Chevrolet Lumina APV
GMC Truck Applications
  • 1983 - 1999 GMC C1500
  • 1983 - 1986 GMC C1500 Suburban
  • 1983 - 1998 GMC C2500
  • 1983 - 1986 GMC C2500 Suburban
  • 1986 - 1986 GMC C3500
  • 1983 - 1986 GMC Jimmy
  • 1983 - 1999 GMC K1500
  • 1988 - 1998 GMC K2500
  • 1987 - 1987 GMC R1500
  • 1987 - 1987 GMC R1500 Suburban
  • 1987 - 1987 GMC R2500
  • 1986 - 1990 GMC S15
  • 1986 - 1989 GMC S15 Jimmy
  • 1991 - 1993 GMC Sonoma
  • 1992 - 1996 GMC Truck
  • 1987 - 1987 GMC V1500
GMC Van Applications
  • 1983 - 1992 GMC G1500
  • 1983 - 1992 GMC G2500
  • 1988 - 1988 GMC G3500
  • 1985 - 1991 GMC Safari
Oldsmobile Applications
  • 1983 - 1988 Oldsmobile 98
  • 1985 - 1987 Oldsmobile Calais
  • 1984 - 1992 Oldsmobile Custom Cruiser
  • 1983 - 1988 Oldsmobile Delta 88
  • 1984 - 1986 Oldsmobile Firenza
  • 1984 - 1984 Oldsmobile Omega
  • 1983 - 1987 Oldsmobile Toronado
Pontiac Applications
  • 1983 - 1988 Pontiac Bonneville
  • 1983 - 1997 Pontiac Firebird
  • 1985 - 1995 Pontiac Grand Am
  • 1983 - 1995 Pontiac Grand Prix
  • 1984 - 1986 Pontiac Parisienne
  • 1987 - 1987 Pontiac Safari
  • 1987 - 1987 Pontiac Tempest
Pontiac Van Applications
  • 1990 - 1995 Pontiac Trans Sport

Vehicle Fitment

This product fits the following vehicle applications. Click to view individual years.

Specifications

Product Specifications

Shipping Dimensions
  • Weight: 1 Lb
  • Dimensions: 3" x 2" x 2"
  • Ship Type: Standard |


  • Product #:
  • SHIP TYPE:
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov