Motorad 1KS1020 Ignition Knock (Detonation) Sensor

Brand Motorad 1KS1020
Fits Cadillac, Chevrolet, GMC, and Pontiac · 318 vehicles

OE-spec design. Meets or exceeds OEM specifications for dependable replacement fit and function.

Accurate knock detection. Responds to a wide range of knock frequencies for precise engine condition feedback.

Piezoceramic element. Built to tight tolerances for increased durability and consistent performance.

Cross-references Gates 21392, Motorad 1KS1020 and 10456031 for the same application. See all 7.

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MotoRad Knock Sensor 1KS1020

The MotoRad 1KS1020 ignition knock sensor helps the engine control module read detonation signals accurately so ignition timing can be adjusted as needed. It is built with a piezoceramic sensing element made to tight tolerances for consistent response and durability.

  • Ignition knock (detonation) sensor for engine timing control
  • Responds to a wide range of knock frequencies
  • Piezoceramic element manufactured to tight tolerances
  • Built to meet or exceed OEM specifications
  • Manufactured in ISO TS16949 facilities

Fitment Coverage

  • Fits 2000 Chevrolet P30, N/A
  • Fits 1990-1997 Chevrolet P30, N/A
  • Fits 1999 Chevrolet Silverado, N/A
  • Fits 1995-1997 Chevrolet Silverado, N/A
  • Fits 1996 Chevrolet Express 3500, N/A
  • Fits 1991-1996 Chevrolet G30, N/A
  • Fits 1992-1996 GMC C1500 Suburban, N/A
  • Fits 1992-1996 GMC C2500 Suburban, N/A
  • Fits 1991-1996 GMC G3500, N/A
  • Fits 1992-1996 GMC K1500 Suburban, N/A
  • Fits 1992-1996 GMC K2500 Suburban, N/A
  • Fits 1990-1996 GMC P3500, N/A
  • Fits 1992-1996 GMC Yukon, N/A
  • Fits 1991-1995 Chevrolet C1500, N/A
  • Fits 1992-1995 Chevrolet C1500 Suburban, N/A
  • Fits 1991-1995 Chevrolet C2500, N/A
  • Fits 1994-1995 Chevrolet C2500 Suburban, N/A, with 17 Bolt Transmission Pan
  • Fits 1991-1995 Chevrolet C3500, N/A
  • Fits 1991-1995 Chevrolet G20, N/A
  • Fits 1991-1995 Chevrolet K1500, N/A
  • Fits 1992-1995 Chevrolet K1500 Suburban, N/A
  • Fits 1991-1995 Chevrolet K2500, N/A
  • Fits 1994-1995 Chevrolet K2500 Suburban, N/A, with 17 Bolt Transmission Pan
  • Fits 1991-1995 Chevrolet K3500, N/A
  • Fits 1995 Chevrolet Suburban 1500, N/A
  • Fits 1995 Chevrolet Tahoe, N/A
  • Fits 1994-1995 GMC C1500, N/A
  • Fits 1991-1992 GMC C1500, N/A
  • Fits 1991-1995 GMC C2500, N/A
  • Fits 1991-1995 GMC C3500, N/A
  • Fits 1991-1995 GMC G2500, N/A
  • Fits 1991-1995 GMC K1500, N/A
  • Fits 1991-1995 GMC K2500, N/A
  • Fits 1991-1995 GMC K3500, N/A
  • Fits 1992-1994 Chevrolet Blazer, N/A
  • Fits 1991-1994 Chevrolet G10, N/A
  • Fits 1992-1994 Chevrolet S10 Blazer, N/A
  • Fits 1991-1994 GMC G1500, N/A
  • Fits 1993 Cadillac Commercial Chassis, N/A
  • Fits 1993 Cadillac Fleetwood, N/A
  • Fits 1992-1993 Chevrolet C2500 Suburban, N/A
  • Fits 1992-1993 Chevrolet K2500 Suburban, N/A
  • Fits 1992-1993 GMC Safari, N/A, with 1/4in Pipe Thread
  • Fits 1992 Chevrolet Astro, N/A
  • Fits 1990-1992 Chevrolet Camaro, N/A
  • Fits 1992 Chevrolet G10, N/A, with 17 Bolt Transmission Pan
  • Fits 1992 Chevrolet G20, N/A, with 17 Bolt Transmission Pan
  • Fits 1992 Chevrolet G30, N/A, with 17 Bolt Transmission Pan
  • Fits 1992 GMC G1500, N/A, with 17 Bolt Transmission Pan
  • Fits 1992 GMC G2500, N/A, with 17 Bolt Transmission Pan
  • Fits 1992 GMC G3500, N/A, with 17 Bolt Transmission Pan
  • Fits 1990-1992 Pontiac Firebird, N/A
  • Fits 1990-1991 Chevrolet Corvette, N/A
  • Fits 1991 Chevrolet R1500 Suburban, N/A, with 17 Bolt Transmission Pan
  • Fits 1991 Chevrolet R1500 Suburban, N/A
  • Fits 1991 Chevrolet R2500 Suburban, N/A
  • Fits 1991 Chevrolet R2500 Suburban, N/A, with 17 Bolt Transmission Pan
  • Fits 1991 Chevrolet R3500, N/A
  • Fits 1991 Chevrolet V1500 Suburban, N/A, with 17 Bolt Transmission Pan
  • Fits 1991 Chevrolet V1500 Suburban, N/A
  • Fits 1991 Chevrolet V2500 Suburban, N/A, with 17 Bolt Transmission Pan
  • Fits 1991 Chevrolet V2500 Suburban, N/A
  • Fits 1991 Chevrolet V3500, N/A
  • Fits 1991 GMC Jimmy, N/A
  • Fits 1991 GMC R1500 Suburban, N/A
  • Fits 1988 GMC R1500 Suburban, N/A
  • Fits 1991 GMC R2500 Suburban, N/A
  • Fits 1991 GMC R3500, N/A
  • Fits 1991 GMC V1500 Suburban, N/A
  • Fits 1991 GMC V2500 Suburban, N/A
  • Fits 1991 GMC V3500, N/A

What It Helps Address

  • Engine knock or detonation-related timing correction
  • Unstable ignition timing feedback to the ECM
  • Loss of accurate knock signal input
  • Check engine concerns tied to knock sensor performance
  • Driveability issues caused by incorrect spark timing

Installation Notes

Verify the connector style and application notes before installation, especially on listings marked with a 17 bolt transmission pan or 1/4in pipe thread. This part cross-references Gates 21392 for the same application. The part number 1KS1020 is also listed under MotoRad replacement references.

Quality Assurance

MotoRad designs this knock sensor to meet or exceed OEM specifications and manufactures it in ISO TS16949 facilities. The 1KS1020 is built for accurate engine-condition input to the ECM across a broad range of knock frequencies.

This part fits 318 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelTransmissionLitersCylindersFuel TypeNotes
2000ChevroletP30——4.1LL6——
1999ChevroletSilverado——5.7LV8——
1997ChevroletP30——7.4LV8——
1997ChevroletSilverado——5.7LV8——
1996AM GeneralHummer——5.7LV8——
1996ChevroletExpress 3500——5.7LV8——
1996ChevroletG30——7.4LV8——
1996ChevroletG30——5.7LV8——
1996ChevroletP30——7.4LV8——
1996ChevroletSilverado——5.7LV8——
1996GMCC1500 Suburban——5.7LV8GAS—
1996GMCC2500 Suburban——7.4LV8GAS—
1996GMCC2500 Suburban——5.7LV8GAS—
1996GMCG3500——7.4LV8——
1996GMCG3500——5.7LV8——
1996GMCK1500 Suburban——5.7LV8——
1996GMCK2500 Suburban——7.4LV8GAS—
1996GMCK2500 Suburban——5.7LV8GAS—
1996GMCP3500—Automatic5.7LV8——
1996GMCYukon—Automatic5.7LV8GAS—
1995AM GeneralHummer——5.7LV8——
1995ChevroletC1500—Automatic5.7LV8——
1995ChevroletC1500 Suburban——5.7LV8——
1995ChevroletC2500—Automatic7.4LV8——
1995ChevroletC2500—Automatic5.7LV8——
1995ChevroletC2500 Suburban——7.4LV8—with 17 Bolt Transmission Pan
1995ChevroletC2500 Suburban——5.7LV8—with 17 Bolt Transmission Pan
1995ChevroletC3500—Automatic7.4LV8——
1995ChevroletC3500—Automatic5.7LV8——
1995ChevroletC3500HD—Automatic7.4LV8——
1995ChevroletC3500HD—Automatic5.7LV8——
1995ChevroletG20——5.7LV8——
1995ChevroletG30——7.4LV8——
1995ChevroletG30——5.7LV8——
1995ChevroletK1500—Automatic5.7LV8——
1995ChevroletK1500 Suburban——5.7LV8——
1995ChevroletK2500—Automatic7.4LV8——
1995ChevroletK2500—Automatic5.7LV8——
1995ChevroletK2500 Suburban——7.4LV8—with 17 Bolt Transmission Pan
1995ChevroletK2500 Suburban——5.7LV8—with 17 Bolt Transmission Pan
1995ChevroletK3500—Automatic7.4LV8——
1995ChevroletK3500—Automatic5.7LV8——
1995ChevroletP30——7.4LV8——
1995ChevroletP30—Automatic5.7LV8——
1995ChevroletSilverado——5.7LV8——
1995ChevroletSuburban 1500—Automatic5.7LV8——
1995ChevroletTahoe—Automatic5.7LV8——
1995GMCC1500—Automatic5.7LV8——
1995GMCC1500 Suburban——5.7LV8GAS—
1995GMCC2500—Automatic5.7LV8——
1995GMCC2500 Suburban——7.4LV8GAS—
1995GMCC2500 Suburban——5.7LV8GAS—
1995GMCC3500—Automatic5.7LV8——
1995GMCC3500HD—Automatic5.7LV8——
1995GMCG2500——5.7LV8——
1995GMCG3500——7.4LV8——
1995GMCG3500——5.7LV8——
1995GMCK1500—Automatic5.7LV8——
1995GMCK1500 Suburban——5.7LV8GAS—
1995GMCK2500—Automatic5.7LV8——
1995GMCK2500 Suburban——7.4LV8GAS—
1995GMCK2500 Suburban——5.7LV8GAS—
1995GMCK3500—Automatic5.7LV8——
1995GMCP3500——7.4LV8——
1995GMCP3500—Automatic5.7LV8——
1995GMCYukon—Automatic5.7LV8GAS—
1994ChevroletBlazer—Automatic5.7LV8——
1994ChevroletC1500—Automatic5.7LV8——
1994ChevroletC1500 Suburban——5.7LV8——
1994ChevroletC2500—Automatic7.4LV8——
1994ChevroletC2500—Automatic5.7LV8——
1994ChevroletC2500 Suburban——7.4LV8—with 17 Bolt Transmission Pan
1994ChevroletC2500 Suburban——5.7LV8—with 17 Bolt Transmission Pan
1994ChevroletC3500—Automatic7.4LV8——
1994ChevroletC3500—Automatic5.7LV8——
1994ChevroletC3500HD—Automatic7.4LV8——
1994ChevroletC3500HD—Automatic5.7LV8——
1994ChevroletG10——4.3LV6——
1994ChevroletG20——5.7LV8——
1994ChevroletG20——4.3LV6——
1994ChevroletG30——7.4LV8——
1994ChevroletG30——5.7LV8——
1994ChevroletG30——4.3LV6——
1994ChevroletK1500—Automatic5.7LV8——
1994ChevroletK1500 Suburban——5.7LV8——
1994ChevroletK2500—Automatic7.4LV8——
1994ChevroletK2500—Automatic5.7LV8——
1994ChevroletK2500 Suburban——7.4LV8—with 17 Bolt Transmission Pan
1994ChevroletK2500 Suburban——5.7LV8—with 17 Bolt Transmission Pan
1994ChevroletK3500—Automatic7.4LV8——
1994ChevroletK3500—Automatic5.7LV8——
1994ChevroletP30—Automatic5.7LV8——
1994ChevroletP30—Automatic4.3LV6——
1994ChevroletS10 Blazer——3.1LV6——
1994GMCC1500—Automatic5.7LV8——
1994GMCC1500 Suburban——5.7LV8GAS—
1994GMCC2500—Automatic5.7LV8——
1994GMCC2500 Suburban——7.4LV8GAS—
1994GMCC2500 Suburban——5.7LV8GAS—
1994GMCC3500—Automatic5.7LV8——
1994GMCC3500HD—Automatic5.7LV8——
1994GMCG1500——4.3LV6——
1994GMCG2500——5.7LV8——
1994GMCG2500——4.3LV6——
1994GMCG3500——7.4LV8——
1994GMCG3500——5.7LV8——
1994GMCG3500——4.3LV6——
1994GMCK1500—Automatic5.7LV8——
1994GMCK1500 Suburban——5.7LV8GAS—
1994GMCK2500—Automatic5.7LV8——
1994GMCK2500 Suburban——7.4LV8GAS—
1994GMCK2500 Suburban——5.7LV8GAS—
1994GMCK3500—Automatic5.7LV8——
1994GMCP3500——7.4LV8——
1994GMCP3500—Automatic5.7LV8——
1994GMCP3500—Automatic4.3LV6——
1994GMCYukon—Automatic5.7LV8GAS—
1993CadillacCommercial Chassis——5.7LV8——
1993CadillacFleetwood——5.7LV8——
1993ChevroletBlazer—Automatic5.7LV8——
1993ChevroletC1500—Automatic7.4LV8——
1993ChevroletC1500—Automatic5.7LV8——
1993ChevroletC1500—Automatic4.3LV6——
1993ChevroletC1500 Suburban——5.7LV8——
1993ChevroletC2500—Automatic7.4LV8——
1993ChevroletC2500—Automatic5.7LV8——
1993ChevroletC2500—Automatic4.3LV6——
1993ChevroletC2500 Suburban——7.4LV8——
1993ChevroletC2500 Suburban——5.7LV8——
1993ChevroletC3500—Automatic7.4LV8——
1993ChevroletC3500—Automatic5.7LV8——
1993ChevroletC3500HD—Automatic7.4LV8——
1993ChevroletC3500HD—Automatic5.7LV8——
1993ChevroletG10——5.7LV8——
1993ChevroletG10——4.3LV6——
1993ChevroletG20——5.7LV8——
1993ChevroletG20——4.3LV6——
1993ChevroletG30——7.4LV8——
1993ChevroletG30——5.7LV8——
1993ChevroletG30——4.3LV6——
1993ChevroletK1500—Automatic5.7LV8——
1993ChevroletK1500—Automatic4.3LV6——
1993ChevroletK1500 Suburban——5.7LV8——
1993ChevroletK2500—Automatic7.4LV8——
1993ChevroletK2500—Automatic5.7LV8——
1993ChevroletK2500—Automatic4.3LV6——
1993ChevroletK2500 Suburban——7.4LV8——
1993ChevroletK2500 Suburban——5.7LV8——
1993ChevroletK3500—Automatic7.4LV8——
1993ChevroletK3500—Automatic5.7LV8——
1993ChevroletP30—Automatic5.7LV8——
1993ChevroletP30—Automatic4.3LV6——
1993ChevroletS10 Blazer——3.1LV6——
1993GMCC1500 Suburban—Automatic5.7LV8——
1993GMCC2500—Automatic7.4LV8——
1993GMCC2500 Suburban—Automatic7.4LV8——
1993GMCC2500 Suburban—Automatic5.7LV8——
1993GMCC3500—Automatic7.4LV8——
1993GMCC3500HD—Automatic7.4LV8——
1993GMCG1500——5.7LV8——
1993GMCG1500——4.3LV6——
1993GMCG2500——5.7LV8——
1993GMCG2500——4.3LV6——
1993GMCG3500——7.4LV8——
1993GMCG3500——5.7LV8——
1993GMCG3500——4.3LV6——
1993GMCK1500—Automatic5.7LV8——
1993GMCK1500—Automatic4.3LV6——
1993GMCK1500 Suburban—Automatic5.7LV8——
1993GMCK2500—Automatic7.4LV8——
1993GMCK2500 Suburban—Automatic7.4LV8——
1993GMCK2500 Suburban—Automatic5.7LV8——
1993GMCK3500—Automatic7.4LV8——
1993GMCP3500——7.4LV8——
1993GMCP3500—Automatic5.7LV8——
1993GMCP3500—Automatic4.3LV6——
1993GMCSafari——4.3LV6—with 1/4in Pipe Thread
1993GMCTyphoon——4.3LV6——
1993GMCYukon—Automatic5.7LV8——
1992ChevroletAstro——4.3LV6——
1992ChevroletBlazer—Automatic5.7LV8——
1992ChevroletC1500—Automatic7.4LV8——
1992ChevroletC1500—Automatic5.7LV8——
1992ChevroletC1500—Automatic4.3LV6——
1992ChevroletC1500 Suburban——5.7LV8——
1992ChevroletC2500—Automatic7.4LV8——
1992ChevroletC2500—Automatic5.7LV8——
1992ChevroletC2500—Automatic4.3LV6——
1992ChevroletC2500 Suburban——7.4LV8——
1992ChevroletC2500 Suburban——5.7LV8——
1992ChevroletC3500—Automatic7.4LV8——
1992ChevroletC3500—Automatic5.7LV8——
1992ChevroletC3500HD—Automatic7.4LV8——
1992ChevroletC3500HD—Automatic5.7LV8——
1992ChevroletCamaro——5.7LV8——
1992ChevroletG10——5.7LV8—with 17 Bolt Transmission Pan
1992ChevroletG10——4.3LV6——
1992ChevroletG20——5.7LV8—with 17 Bolt Transmission Pan
1992ChevroletG20——4.3LV6——
1992ChevroletG30——7.4LV8——
1992ChevroletG30——5.7LV8—with 17 Bolt Transmission Pan
1992ChevroletG30——4.3LV6——
1992ChevroletK1500—Automatic5.7LV8——
1992ChevroletK1500—Automatic4.3LV6——
1992ChevroletK1500 Suburban——5.7LV8——
1992ChevroletK2500—Automatic7.4LV8——
1992ChevroletK2500—Automatic5.7LV8——
1992ChevroletK2500—Automatic4.3LV6——
1992ChevroletK2500 Suburban——7.4LV8——
1992ChevroletK2500 Suburban——5.7LV8——
1992ChevroletK3500—Automatic7.4LV8——
1992ChevroletK3500—Automatic5.7LV8——
1992ChevroletP30—Automatic5.7LV8——
1992ChevroletP30—Automatic4.3LV6——
1992ChevroletS10 Blazer——3.1LV6——
1992GMCC1500—Automatic5.7LV8——
1992GMCC1500 Suburban—Automatic5.7LV8——
1992GMCC2500—Automatic7.4LV8——
1992GMCC2500—Automatic5.7LV8——
1992GMCC2500 Suburban—Automatic7.4LV8——
1992GMCC2500 Suburban—Automatic5.7LV8——
1992GMCC3500—Automatic7.4LV8——
1992GMCC3500—Automatic5.7LV8——
1992GMCC3500HD—Automatic7.4LV8——
1992GMCC3500HD—Automatic5.7LV8——
1992GMCG1500——5.7LV8—with 17 Bolt Transmission Pan
1992GMCG1500——4.3LV6——
1992GMCG2500——5.7LV8—with 17 Bolt Transmission Pan
1992GMCG2500——4.3LV6——
1992GMCG3500——7.4LV8——
1992GMCG3500——5.7LV8—with 17 Bolt Transmission Pan
1992GMCG3500——4.3LV6——
1992GMCK1500—Automatic5.7LV8——
1992GMCK1500 Suburban—Automatic5.7LV8——
1992GMCK2500—Automatic7.4LV8——
1992GMCK2500—Automatic5.7LV8——
1992GMCK2500 Suburban—Automatic7.4LV8——
1992GMCK2500 Suburban—Automatic5.7LV8——
1992GMCK3500—Automatic7.4LV8——
1992GMCK3500—Automatic5.7LV8——
1992GMCP3500—Automatic7.4LV8——
1992GMCP3500—Automatic5.7LV8——
1992GMCP3500—Automatic4.3LV6——
1992GMCSafari——4.3LV6—with 1/4in Pipe Thread
1992GMCTyphoon——4.3LV6——
1992GMCYukon—Automatic5.7LV8——
1992PontiacFirebird——5.7LV8——
1991ChevroletC1500—Automatic7.4LV8——
1991ChevroletC1500—Automatic5.7LV8——
1991ChevroletC1500—Automatic4.3LV6——
1991ChevroletC2500—Automatic7.4LV8——
1991ChevroletC2500—Automatic5.7LV8——
1991ChevroletC2500—Automatic4.3LV6——
1991ChevroletC3500—Automatic7.4LV8——
1991ChevroletC3500—Automatic5.7LV8——
1991ChevroletC3500HD—Automatic7.4LV8——
1991ChevroletC3500HD—Automatic5.7LV8——
1991ChevroletCamaro——5.7LV8——
1991ChevroletCorvetteBase—5.7LV8——
1991ChevroletG10——5.7LV8——
1991ChevroletG20——5.7LV8——
1991ChevroletG30——7.4LV8——
1991ChevroletG30——5.7LV8——
1991ChevroletK1500—Automatic5.7LV8——
1991ChevroletK1500—Automatic4.3LV6——
1991ChevroletK2500—Automatic7.4LV8——
1991ChevroletK2500—Automatic5.7LV8——
1991ChevroletK2500—Automatic4.3LV6——
1991ChevroletK3500—Automatic7.4LV8——
1991ChevroletK3500—Automatic5.7LV8——
1991ChevroletP30—Automatic5.7LV8——
1991ChevroletP30—Automatic4.3LV6——
1991ChevroletR1500 Suburban——6.2LV8—with 17 Bolt Transmission Pan
1991ChevroletR1500 Suburban——5.7LV8——
1991ChevroletR2500 Suburban——7.4LV8——
1991ChevroletR2500 Suburban——6.2LV8—with 17 Bolt Transmission Pan
1991ChevroletR2500 Suburban——5.7LV8——
1991ChevroletR3500—Automatic7.4LV8——
1991ChevroletV1500 Suburban——6.2LV8—with 17 Bolt Transmission Pan
1991ChevroletV1500 Suburban——5.7LV8——
1991ChevroletV2500 Suburban——6.2LV8—with 17 Bolt Transmission Pan
1991ChevroletV2500 Suburban——5.7LV8——
1991ChevroletV3500—Automatic7.4LV8——
1991GMCC1500——4.3LV6——
1991GMCC2500—Manual7.4LV8——
1991GMCC2500——4.3LV6——
1991GMCC3500—Manual7.4LV8——
1991GMCC3500HD—Manual7.4LV8——
1991GMCG1500——5.7LV8——
1991GMCG2500——5.7LV8——
1991GMCG3500——7.4LV8——
1991GMCG3500——5.7LV8——
1991GMCJimmy——5.7LV8——
1991GMCK1500——4.3LV6——
1991GMCK2500—Manual7.4LV8——
1991GMCK2500——4.3LV6——
1991GMCK3500—Manual7.4LV8——
1991GMCP3500—Automatic7.4LV8——
1991GMCP3500—Automatic5.7LV8——
1991GMCP3500—Automatic4.3LV6——
1991GMCR1500 Suburban——5.7LV8GAS—
1991GMCR2500 Suburban——7.4LV8GAS—
1991GMCR2500 Suburban——5.7LV8GAS—
1991GMCR3500—Automatic7.4LV8——
1991GMCSyclone——4.3LV6——
1991GMCV1500 Suburban——5.7LV8GAS—
1991GMCV2500 Suburban——5.7LV8GAS—
1991GMCV3500—Automatic7.4LV8——
1991PontiacFirebird——5.7LV8——
1990ChevroletCamaro——5.7LV8——
1990ChevroletCorvetteBase—5.7LV8——
1990ChevroletP30—Automatic5.7LV8——
1990ChevroletP30—Automatic4.3LV6——
1990GMCP3500—Automatic7.4LV8——
1990GMCP3500—Automatic5.7LV8——
1990GMCP3500—Automatic4.3LV6——
1990PontiacFirebird——5.7LV8——
1988GMCR1500 Suburban——5.7LV8——
Directly replaces or cross-references 7 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Gates — 21392Motorad — 1KS10201045603110456549810452459081045603108104936630