P0327 Code: Knock Sensor Low Input Causes & Fix
Learn what triggers the P0327 knock sensor low-input code, how serious it is, and how to diagnose the sensor, connector and wiring step by step before replacing parts.
Jul 27, 2026
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Buick Regal Knock Sensor
35 itemsGet a reliable Knock Sensor for your vehicle at A-Premium. Our high-quality sensors are designed to accurately detect engine knocking, helping to prevent costly damage. Browse our selection today and enjoy fast, free shipping on your order.
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Walker ProductsPart # 242-91016
Walker Products 242-91016 Ignition Knock (Detonation) Sensor
4.328 Reviews
$46.99
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3-year warranty
90 days free return
Fits 1988-1988 Buick Century, 1988-1988 Buick Skylark, 1988-1989 Buick Electra, 1988-1989 Buick LeSabre, 1988-1991 Buick Reatta, 1988-1993 Buick Riviera, 1989-1990 Buick Skylark, 1989-1993 Buick Century, 1990-1990 Buick Electra, 1990-1990 Buick LeSabre, 1990-1994 Buick Regal, 1991-1991 Buick Skylark, 1991-1991 Buick Skylark, 1991-1994 Buick LeSabre, 1991-1995 Buick Park Avenue, 1992-1992 Buick Skylark, 1993-1993 Buick Century, 1993-1993 Buick Skylark, 1994-1995 Buick Roadmaster, 1995-1995 Buick Commercial Chassis
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Vehicle: Buick Regal
Item LocatedUnited States
Quantity1
Part interchange
242-91016, SU150DG, KS27, 3850357, 22024631, 38503579, 71-6538, 71-6520,
...View moreitem #1001LE5Q
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Walker ProductsPart # 242-1192
Walker Products 242-1192 Ignition Knock (Detonation) Sensor
4.328 Reviews
$45.99
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3-year warranty
90 days free return
Fits 2010-2010 Buick LaCrosse, 2011-2011 Buick Regal, 2011-2013 Buick Regal, 2013-2013 Buick Verano, 2015-2016 Buick Verano, 2009-2009 Chevrolet Malibu, 2009-2009 Chevrolet Malibu, 2009-2009 Chevrolet Malibu, 2009-2009 Chevrolet Malibu, 2009-2010 Chevrolet Cobalt, 2009-2010 Chevrolet HHR, 2010-2010 Chevrolet Equinox, 2010-2010 Chevrolet Malibu, 2010-2010 GMC Terrain, 2009-2009 Pontiac G5, 2009-2009 Pontiac Solstice, 2009-2010 Pontiac G6, 2011-2011 Saab 9-5, 2009-2009 Saturn Aura, 2009-2010 Saturn Sky
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Vehicle: Buick Regal
Item LocatedUnited States
Quantity1
Part interchange
242-1192, V40-72-0482, ID0001, 1236841, 4812902, AS10216, 550724, 0907103,
...View moreitem #1001LLT2
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StandardPart # KS374
Standard KS374 Ignition Knock (Detonation) Sensor
4.446 Reviews
$29.99
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3-year warranty
90 days free return
Fits 2009-2022 Buick Enclave, 2010-2010 Buick LaCrosse, 2010-2010 Buick LaCrosse, 2011-2017 Buick LaCrosse, 2012-2012 Buick Verano, 2013-2016 Buick Verano, 2013-2017 Buick Regal, 2017-2017 Buick Verano, 2018-2019 Buick LaCrosse, 2018-2020 Buick Regal Sportback, 2009-2009 Cadillac SRX, 2009-2010 Cadillac STS, 2009-2011 Cadillac CTS, 2010-2011 Cadillac CTS, 2010-2016 Cadillac SRX, 2011-2011 Cadillac STS, 2013-2014 Cadillac CTS, 2013-2019 Cadillac ATS, 2013-2019 Cadillac CTS, 2013-2019 Cadillac XTS
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Vehicle: Buick Regal
Item LocatedUnited States
Quantity1
MaterialMetal/Plastic
Part interchange
KS374, 12729597, 158-1654, AS10262, DKS814, 73009, ID0050, 12636736,
...View moreitem #100164G3
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StandardPart # KS45
Standard KS45 Ignition Knock (Detonation) Sensor
4.446 Reviews
$53.99
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3-year warranty
90 days free return
Fits 1996-1996 Buick Regal, 1996-1999 Buick Riviera, 1996-2005 Buick LeSabre, 1996-2005 Buick Park Avenue, 1997-2004 Buick Regal, 2005-2005 Buick Allure, 2005-2005 Buick LaCrosse, 2006-2007 Buick Allure, 2006-2008 Buick Lucerne, 2006-2009 Buick LaCrosse, 1996-2002 Chevrolet Camaro, 1998-1999 Chevrolet Lumina, 1998-2005 Chevrolet Monte Carlo, 2000-2005 Chevrolet Impala, 1996-1996 Oldsmobile 98, 1996-1999 Oldsmobile 88, 1996-1999 Oldsmobile LSS, 1997-1998 Oldsmobile Regency, 1998-1998 Oldsmobile Intrigue, 1999-1999 Oldsmobile Intrigue
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Vehicle: Buick Regal
Item LocatedUnited States
Quantity1
Part interchange
KS45, 2133522, SDTGM005, AS10009, DKS226, 144-419, 72972, ID0108,
...View moreitem #1001682S
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StandardPart # KS437
Standard KS437 Ignition Knock (Detonation) Sensor
4.446 Reviews
$28.99
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3-year warranty
90 days free return
Fits 2014-2017 Buick Regal, 2016-2020 Buick Envision, 2018-2019 Buick LaCrosse, 2018-2020 Buick Regal Sportback, 2018-2020 Buick Regal TourX, 2013-2017 Cadillac ATS, 2013-2018 Cadillac ATS, 2014-2019 Cadillac CTS, 2015-2022 Cadillac Escalade, 2015-2022 Cadillac Escalade ESV, 2016-2016 Cadillac CTS, 2016-2018 Cadillac CT6, 2022-2023 Cadillac CT5, 2013-2014 Chevrolet Malibu, 2013-2014 Chevrolet Malibu, 2014-2014 Chevrolet Suburban 1500, 2014-2018 Chevrolet Cheyenne, 2014-2018 Chevrolet Silverado 1500, 2014-2018 Chevrolet Silverado 2500, 2014-2019 Chevrolet Impala
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Vehicle: Buick Regal
Item LocatedUnited States
Quantity1
MaterialPlastic
item #100163EP
Note
Sensor Only
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StandardPart # KS3
Standard KS3 Ignition Knock (Detonation) Sensor
4.446 Reviews
$37.99
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3-year warranty
90 days free return
Fits 1988-1988 Buick LeSabre, 1988-1988 Buick Skylark, 1988-1990 Buick Electra, 1988-1991 Buick Reatta, 1988-1993 Buick Riviera, 1989-1990 Buick Skylark, 1989-1992 Buick Century, 1989-1994 Buick LeSabre, 1990-1992 Buick Century, 1990-1994 Buick Regal, 1991-1991 Buick Skylark, 1991-1991 Buick Skylark, 1991-1995 Buick Park Avenue, 1992-1992 Buick Skylark, 1993-1993 Buick Century, 1993-1993 Buick Skylark, 1994-1995 Buick Commercial Chassis, 1994-1995 Buick Roadmaster, 1995-1995 Buick Riviera, 1988-1989 Cadillac Brougham
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Buick Regal
Item LocatedUnited States
Quantity1
Part interchange
KS3, 21396, SDTGM018, AS10000, AS10005, AS10006, AS10052, AS10133,
...View moreitem #100167RG
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Walker ProductsPart # 242-1329
Walker Products 242-1329 Ignition Knock (Detonation) Sensor
4.328 Reviews
$27.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2016-2020 Buick Envision, 2018-2020 Buick Regal TourX, 2020-2020 Buick Regal Sportback, 2015-2020 Cadillac Escalade, 2015-2020 Cadillac Escalade ESV, 2021-2021 Cadillac Escalade, 2021-2021 Cadillac Escalade ESV, 2014-2018 Chevrolet Silverado 1500, 2014-2021 Chevrolet Corvette, 2015-2015 Chevrolet Malibu, 2015-2015 Chevrolet Suburban, 2015-2020 Chevrolet Tahoe, 2016-2016 Chevrolet Malibu Limited, 2016-2019 Chevrolet Suburban, 2019-2019 Chevrolet Silverado 1500 LD, 2019-2019 Chevrolet Suburban, 2019-2021 Chevrolet Silverado 1500, 2019-2021 Chevrolet Silverado 1500, 2019-2021 Chevrolet Silverado 1500, 2020-2020 Chevrolet Equinox
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Buick Regal
Item LocatedUnited States
Quantity1
Part interchange
242-1329
item #1001LHT4
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StandardPart # KS393
Standard KS393 Ignition Knock (Detonation) Sensor
4.446 Reviews
$25.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2010-2010 Buick LaCrosse, 2011-2011 Buick Regal, 2012-2013 Buick Regal, 2013-2015 Buick Verano, 2009-2010 Chevrolet Cobalt, 2009-2010 Chevrolet HHR, 2009-2010 Chevrolet Malibu, 2010-2010 Chevrolet Captiva Sport, 2010-2010 Chevrolet Equinox, 2010-2010 GMC Terrain, 2009-2009 Pontiac Solstice, 2009-2010 Pontiac G5, 2009-2010 Pontiac G6, 2011-2011 Saab 9-5, 2009-2009 Saturn Aura, 2009-2010 Saturn Sky, 2009-2010 Saturn Vue
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Buick Regal
Item LocatedUnited States
Quantity1
MaterialMetal/Plastic
Part interchange
KS393, 2134583, 158-1645, AS10216, DKS833, 72915, ID0001, 213-4583,
...View moreitem #100168S6
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Beck/ArnleyPart # 158-1654
Beck/Arnley 158-1654 Ignition Knock (Detonation) Sensor
4.536 Reviews
$35.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2009-2020 Buick Enclave, 2010-2010 Buick Allure, 2010-2010 Buick LaCrosse, 2010-2010 Buick LaCrosse, 2011-2017 Buick LaCrosse, 2012-2012 Buick Verano, 2012-2017 Buick Regal, 2013-2016 Buick Verano, 2016-2019 Buick Encore, 2017-2017 Buick Verano, 2017-2018 Buick Encore, 2017-2018 Buick Encore, 2017-2019 Buick Encore, 2018-2019 Buick LaCrosse, 2018-2020 Buick Regal Sportback, 2019-2019 Buick Encore, 2009-2009 Cadillac SRX, 2009-2010 Cadillac STS, 2009-2015 Cadillac CTS, 2010-2014 Cadillac CTS
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Vehicle: Buick Regal
Item LocatedUnited States
QuantityOne Set
Part interchange
158-1654
item #1000XSRD
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DelphiPart # AS10007
Ignition Knock (Detonation) Sensor - Delphi AS10007
52 Reviews
$44.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1987-1989 Buick Century, 1988-1989 Buick Regal, 1990-1995 Buick Regal, 1994-1995 Buick Century, 1994-1995 Buick Skylark, 1987-1988 Cadillac Cimarron, 1993-1993 Cadillac Allante, 1993-1993 Cadillac Eldorado, 1993-1993 Cadillac Seville, 1994-1995 Cadillac DeVille, 1994-1995 Cadillac Eldorado, 1994-1995 Cadillac Seville, 1987-1989 Chevrolet Beretta, 1987-1989 Chevrolet Cavalier, 1987-1989 Chevrolet Celebrity, 1987-1989 Chevrolet Corsica, 1990-1990 Chevrolet Celebrity, 1990-1991 Chevrolet Corsica, 1990-1994 Chevrolet Cavalier, 1990-1995 Chevrolet Beretta
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Buick Regal
Item LocatedUnited States
Quantity1
Part interchange
AS10007, SU168, 213264, S8004, 242-1017, 10456208, 10497163, DKS201SB,
...View moreitem #1001X3ZC
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DelphiPart # AS10014
Ignition Knock (Detonation) Sensor - Delphi AS10014
52 Reviews
$50.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1985-1985 Buick Century, 1985-1985 Buick Electra, 1985-1985 Buick Somerset Regal, 1985-1988 Buick Century, 1985-1988 Buick Electra, 1986-1986 Buick LeSabre, 1986-1987 Buick Riviera, 1986-1987 Buick Somerset, 1986-1988 Buick LeSabre, 1986-1988 Buick Skylark, 1991-1991 Buick Roadmaster, 1993-1995 Buick Skylark, 1996-1996 Buick Roadmaster, 1991-1992 Cadillac Brougham, 1996-1996 Cadillac Fleetwood, 1985-1985 Chevrolet K20, 1985-1986 Chevrolet C10, 1985-1986 Chevrolet C10 Suburban, 1985-1986 Chevrolet C20, 1985-1986 Chevrolet C20 Suburban
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Buick Regal
Item LocatedUnited States
Quantity1
Part interchange
AS10014, 5S2155, SU121, S8003, 213325, 242-1018, 10456287, 29014,
...View moreitem #1001X3LK
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DelphiPart # AS10262
Ignition Knock (Detonation) Sensor - Delphi AS10262
52 Reviews
$31.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2009-2022 Buick Enclave, 2010-2010 Buick LaCrosse, 2010-2010 Buick LaCrosse, 2011-2011 Buick Regal, 2011-2017 Buick LaCrosse, 2012-2012 Buick Verano, 2012-2017 Buick Regal, 2013-2016 Buick Verano, 2016-2019 Buick Encore, 2017-2017 Buick Verano, 2017-2018 Buick Encore, 2017-2018 Buick Encore, 2017-2019 Buick Encore, 2018-2019 Buick LaCrosse, 2018-2020 Buick Regal Sportback, 2019-2019 Buick Encore, 2021-2022 Buick Encore, 2009-2009 Cadillac SRX, 2009-2010 Cadillac STS, 2009-2019 Cadillac CTS
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Buick Regal
Item LocatedUnited States
Quantity1
Part interchange
AS10262, DKS814, KS374, 12 60 5738, 12636736
item #1001X4S9
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DelphiPart # AS10013
Ignition Knock (Detonation) Sensor - Delphi AS10013
52 Reviews
$42.99
Low stock: Only 5 left
Edit ZIP code
3-year warranty
90 days free return
Fits 1996-1996 Buick Century, 1996-1996 Buick Regal, 1996-1998 Buick Skylark, 1997-2005 Buick Century, 2002-2003 Buick Rendezvous, 2004-2005 Buick Rendezvous, 1996-1996 Chevrolet Beretta, 1996-1996 Chevrolet Corsica, 1996-1996 Chevrolet Lumina APV, 1996-1997 Chevrolet Lumina, 1996-1997 Chevrolet Monte Carlo, 1997-1999 Chevrolet Malibu, 1997-2005 Chevrolet Venture, 1998-1999 Chevrolet Lumina, 1998-1999 Chevrolet Monte Carlo, 2000-2001 Chevrolet Lumina, 2000-2003 Chevrolet Malibu, 2000-2005 Chevrolet Impala, 2000-2005 Chevrolet Monte Carlo, 1996-1997 Oldsmobile Cutlass Supreme
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Buick Regal
Item LocatedUnited States
Quantity1
Part interchange
AS10013, 5S2157, SU1076, 213307, S8601, 242-1021, 10456238, 29028,
...View moreitem #1001X6CU
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DelphiPart # AS10009
Ignition Knock (Detonation) Sensor - Delphi AS10009
52 Reviews
$67.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1996-1996 Buick Regal, 1996-1999 Buick Riviera, 1996-2005 Buick LeSabre, 1996-2005 Buick Park Avenue, 1997-2004 Buick Regal, 2005-2009 Buick LaCrosse, 2006-2008 Buick Lucerne, 1996-2002 Chevrolet Camaro, 1998-1998 Chevrolet Lumina, 1998-2005 Chevrolet Monte Carlo, 1999-1999 Chevrolet Lumina, 2000-2005 Chevrolet Impala, 1996-1996 Oldsmobile 98, 1996-1999 Oldsmobile 88, 1996-1999 Oldsmobile LSS, 1997-1998 Oldsmobile Regency, 1998-1998 Oldsmobile Intrigue, 1999-1999 Oldsmobile Intrigue, 1996-2002 Pontiac Firebird, 1996-2003 Pontiac Bonneville
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Buick Regal
Item LocatedUnited States
Quantity1
Part interchange
AS10009, 5S2160, SU1073, 213297, 2133522, S8605, 242-1020, 10456215,
...View moreitem #1001X4D1
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DelphiPart # AS10216
Ignition Knock (Detonation) Sensor - Delphi AS10216
52 Reviews
$32.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2010-2010 Buick LaCrosse, 2011-2011 Buick Regal, 2011-2013 Buick Regal, 2013-2016 Buick Verano, 2009-2009 Chevrolet Malibu, 2009-2009 Chevrolet Malibu, 2009-2009 Chevrolet Malibu, 2009-2009 Chevrolet Malibu, 2009-2010 Chevrolet Cobalt, 2009-2010 Chevrolet HHR, 2010-2010 Chevrolet Equinox, 2010-2010 Chevrolet Malibu, 2010-2010 GMC Terrain, 2009-2009 Pontiac G5, 2009-2009 Pontiac Solstice, 2009-2010 Pontiac G6, 2011-2011 Saab 9-5, 2009-2009 Saturn Aura, 2009-2010 Saturn Sky, 2009-2010 Saturn Vue
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Buick Regal
Item LocatedUnited States
Quantity1
Part interchange
AS10216, S8993, DKS833, KS393, 12621820
item #1001X6KG
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