How to replace the Knock Sensor (KS) 2 on Buick LeSabre?

Vehicle technicians should start by turning off the Ignition Switch before lifting the car since they need to follow secure vehicle lifting principles. First remove splash shield bolts while maintaining safety from hot engine coolant which remains in the water jacket even though you drained the cooling system. Drain the cooling system before removing the two bolts from the Knock Sensor heat shield situated below the freeze plug or block heater area. First disconnect the electrical connection of the Knock Sensor then extract the sensor from its mounting position on the engine block. Installation should not include thread sealants on the sensor threads since factory coating requires its presence for successful detonation detection. Tighten the Knock Sensor inside the engine block with 19 n.m (14 lb ft) of torque. Screw in the Knock Sensor heat shield with a torque of 60 n.m (44 lb ft. Installation involves plugging the electrical connector to the Knock Sensor before installing the splash shield while lowering the vehicle for filling the cooling system and checking the coolant level.

How to replace the bank 2 knock sensor on Buick Enclave?

Begin by disconnecting the negative cable from the battery and removing the Oil Filter. You must disconnect the engine wiring harness electrical connector from the bank 2 Knock Sensor while lowering the vehicle. First loosen the Knock Sensor bolt for removal of the Knock Sensor. Install the new Knock Sensor by positioning it correctly and tighten the Knock Sensor bolt until it reaches 23 n.m of torque (17 lb ft). Connect the bank 2 Knock Sensor to its wiring harness electrical connector before you raise and properly support the vehicle. Set up a new engine Oil Filter then attach the negative cable to the battery.

How to Safely Replace the Knock Sensor on a Buick Regal?

In order to replace the Knock Sensor (KS) 2, first lift the vehicle and support it. Drain the cooling system to avoid burns from hot engine coolant that might still be indwelt in the engine water jacket. Disconnected the electrical connector and remove the knock sensor (KS) . When installing the new KS do not apply thread sealant on the sensor threads because they are factory-coated and more sealant will reduce their ability to detect detonation. torque to 19 N.m/14lbft. After installing, reconnect the KS electrical connector, drop the vehicle, and top up the cooling system.

OEM Buick Knock Sensor

Engine Knock Sensor

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24 Knock Sensors found

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Buick Knock Sensor
Part Number: 10456126
$38.70 MSRP: $78.60
You Save: $39.90 (51%)
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Product Specifications
- Other Name: Sensor Assembly-Electric Spark Control Knock; Control Module; Sensor, Distributor (Also Knock Sensor)
Fits the following Buick Models:
- Roadmaster | 1994-1995 | Base, Estate Wagon, Limited | 8 Cyl 5.7 L GAS
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Buick Knock Sensor
Part Number: 25201064
$21.73 MSRP: $40.80
You Save: $19.07 (47%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor, Distributor (Also Knock Sensor)
- Replaces: 55563372
Fits the following Buick Models:
- Encore | 2013-2021 | Base, Convenience, Essence, Leather, Preferred, Preferred II, Premium, Sport Touring | 4 Cyl 1.4 L GAS
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Buick Knock Sensor
Part Number: 12591625
$66.57 MSRP: $135.22
You Save: $68.65 (51%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor, Distributor (Also Knock Sensor)
- Replaces: 10456215
Fits the following Buick Models:
- LaCrosse | 2005-2009 | CX, CXL | 6 Cyl 3.8 L GAS
- LeSabre | 1996-2005 | Custom, Limited | 6 Cyl 3.8 L GAS
- Lucerne | 2006-2008 | CX, CXL | 6 Cyl 3.8 L GAS
- Park Avenue | 1996-2005 | Base, Ultra | 6 Cyl 3.8 L GAS
- Regal | 1996-2004 | 25th Anniversary Edition, Custom, Gran Sport, GS, GSE, Limited, LS, LSE, Olympic Gold Edition | 6 Cyl 3.8 L GAS
- Riviera | 1996-1999 | Base | 6 Cyl 3.8 L GAS
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Buick Knock Sensor
Part Number: 12589867
$64.53 MSRP: $131.06
You Save: $66.53 (51%)
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Product Specifications
- Other Name: Sensor, Distributor (Also Knock Sensor)
- Replaces: 10456603
Fits the following Buick Models:
- Rainier | 2004 | CXL, CXL Plus | 8 Cyl 5.3 L GAS
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Buick Knock Sensor
Part Number: 10456288
$47.03 MSRP: $95.53
You Save: $48.50 (51%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor, Distributor (Also Knock Sensor); ESC Sensor; Sensor, Engine Crankcase Ventilator
- Replaces: 10456018
Fits the following Buick Models:
- Roadmaster | 1993 | Base, Estate Wagon, Limited | 8 Cyl 5.7 L GAS
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Buick Knock Sensor
Part Number: 12623095
$22.97 MSRP: $43.16
You Save: $20.19 (47%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Sensor, Distributor (Also Knock Sensor)
Fits the following Buick Models:
- Envision | 2016-2020 | Base, Essence, Preferred, Premium, Premium II | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L FLEX, 4 Cyl 2.5 L GAS
- LaCrosse | 2018-2019 | Base, Essence, Preferred, Premium | 4 Cyl 2.5 L MILD HYBRID EV-GAS (MHEV)
- Regal | 2014-2017 | Base, GS, Premium, Sport Touring | 4 Cyl 2.0 L GAS
- Regal Sportback | 2018-2020 | Avenir, Base, Essence, Preferred, Preferred II | 4 Cyl 2.0 L GAS
- Regal TourX | 2018-2020 | Base, Essence, Preferred | 4 Cyl 2.0 L GAS
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Buick Knock Sensor
Part Number: 12567446
$26.64 MSRP: $50.00
You Save: $23.36 (47%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor, Distributor (Also Knock Sensor)
- Replaced by: 19434672
Fits the following Buick Models:
- Lucerne | 2006 | CXL, CXS | 8 Cyl 4.6 L GAS
- Rainier | 2004-2005 | CXL, CXL Plus | 6 Cyl 4.2 L GAS
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Buick Knock Sensor
Part Number: 12621820
$17.18 MSRP: $32.26
You Save: $15.08 (47%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor, Distributor (Also Knock Sensor); Ignition Knock (Detonation) Sensor
- Replaced by: 19434675
Fits the following Buick Models:
- LaCrosse | 2010-2013 | Base, Convenience, CX, CXL, Leather, Premium | 4 Cyl 2.4 L GAS, 4 Cyl 2.4 L MILD HYBRID EV-GAS (MHEV)
- Regal | 2011-2013 | CXL, GS, Premium | 4 Cyl 2.0 L FLEX, 4 Cyl 2.4 L GAS
- Verano | 2013-2016 | Premium, Turbo | 4 Cyl 2.0 L GAS
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Buick Knock Sensor
Part Number: 12623730
$13.47 MSRP: $25.30
You Save: $11.83 (47%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor, Distributor (Also Knock Sensor); Ignition Knock (Detonation) Sensor
- Replaces: 12570125
Fits the following Buick Models:
- LaCrosse | 2008-2009 | Super | 8 Cyl 5.3 L GAS
- Lucerne | 2007-2011 | CX, CXL, CXL Special Edition, CXS, Super | 6 Cyl 3.9 L FLEX, 6 Cyl 3.9 L GAS, 8 Cyl 4.6 L GAS
- Rainier | 2005-2007 | CXL, CXL Plus | 6 Cyl 4.2 L GAS, 8 Cyl 5.3 L GAS
- Rendezvous | 2006-2007 | CX, CXL | 6 Cyl 3.5 L GAS
- Terraza | 2005-2007 | CX, CXL | 6 Cyl 3.5 L GAS, 6 Cyl 3.9 L FLEX, 6 Cyl 3.9 L GAS
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Buick Knock Sensor
Part Number: 12618603
$37.07 MSRP: $69.61
You Save: $32.54 (47%)
Ships in 1 Business Day
ADD TO CART
Product Specifications
- Other Name: Sensor, Distributor (Also Knock Sensor); Ignition Knock (Detonation) Sensor
- Replaces: 12566845
Fits the following Buick Models:
- Enclave | 2008 | CX, CXL | 6 Cyl 3.6 L GAS
- LaCrosse | 2005-2008 | CXS | 6 Cyl 3.6 L GAS
- Rendezvous | 2004-2005 | CXL, CXL Plus, Ultra | 6 Cyl 3.6 L GAS
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Buick Knock Sensor
Part Number: 10456238
$19.36 MSRP: $60.45
You Save: $41.09 (68%)
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Product Specifications
- Other Name: Sensor, Distributor (Also Knock Sensor)
Fits the following Buick Models:
- Century | 1996-2005 | Custom, Limited, Special, Special Edition | 6 Cyl 3.1 L GAS
- Regal | 1996 | Custom | 6 Cyl 3.1 L GAS
- Rendezvous | 2002-2005 | CX, CX Plus, CXL, CXL Plus | 6 Cyl 3.4 L GAS
- Skylark | 1996-1998 | Custom, Gran Sport, Limited, Olympic Gold Edition | 6 Cyl 3.1 L GAS
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Buick Knock Sensor
Part Number: 12574628
$61.35 MSRP: $111.03
You Save: $49.68 (45%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor, Distributor (Also Knock Sensor)
Fits the following Buick Models:
- LaCrosse | 2005-2008 | CXS | 6 Cyl 3.6 L GAS
- Rendezvous | 2004-2005 | CXL, CXL Plus, Ultra | 6 Cyl 3.6 L GAS
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Buick Knock Sensor
Part Number: 12729597
$19.41 MSRP: $36.46
You Save: $17.05 (47%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor, Distributor (Also Knock Sensor); Camshaft Sensor
- Replaces: 12692505, 12605738, 12636736
Fits the following Buick Models:
- Enclave | 2009-2024 | Avenir, Base, Convenience, CX, CXL, Essence, Leather, Preferred, Premium | 6 Cyl 3.6 L GAS
- Encore | 2016-2019 | Base, Convenience, Essence, Leather, Preferred, Preferred II, Premium, Sport Touring | 4 Cyl 1.4 L GAS
- LaCrosse | 2010-2019 | Avenir, Base, Convenience, CX, CXL, CXS, Essence, Leather, Preferred, Premium, Sport Touring, Touring | 4 Cyl 2.4 L GAS, 4 Cyl 2.4 L MILD HYBRID EV-GAS (MHEV), 6 Cyl 3.0 L GAS, 6 Cyl 3.6 L FLEX, 6 Cyl 3.6 L GAS
- Regal | 2011-2017 | Base, CXL, Premium | 4 Cyl 2.4 L FLEX, 4 Cyl 2.4 L GAS, 4 Cyl 2.4 L MILD HYBRID EV-GAS (MHEV)
- Regal Sportback | 2018-2020 | GS | 6 Cyl 3.6 L GAS
- Verano | 2012-2017 | Base, Convenience, Leather, Sport Touring | 4 Cyl 2.4 L FLEX, 4 Cyl 2.4 L GAS
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Buick Knock Sensor
Part Number: 55507858
$10.64 MSRP: $19.01
You Save: $8.37 (45%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor, Distributor (Also Knock Sensor)
- Replaces: 55599019
Fits the following Buick Models:
- Cascada | 2016-2019 | Base, Premium, Sport Touring | 4 Cyl 1.6 L GAS
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Buick Knock Sensor
Part Number: 12663209
$4.19 MSRP: $7.57
You Save: $3.38 (45%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor, Distributor (Also Knock Sensor)
Fits the following Buick Models:
- Encore GX | 2020-2024 | Avenir, Essence, Preferred, Select, Sport Touring | 3 Cyl 1.3 L GAS
- Envision | 2021-2023 | Avenir, Essence, Preferred | 4 Cyl 2.0 L GAS
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Buick Knock Sensor
Part Number: 10456209
$13.65 MSRP: $25.64
You Save: $11.99 (47%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor, Distributor (Also Knock Sensor)
Fits the following Buick Models:
- Century | 1996 | Limited, Special | 4 Cyl 2.2 L GAS
- Skylark | 1996-1998 | Custom, Limited, Olympic Gold Edition | 4 Cyl 2.4 L GAS
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Buick Knock Sensor
Part Number: 55494828
$14.84 MSRP: $26.50
You Save: $11.66 (44%)
ADD TO CART
Product Specifications
- Other Name: Sensor, Distributor (Also Knock Sensor)
- Replaced by: 12737721
Fits the following Buick Models:
- Encore GX | 2020-2024 | Essence, Preferred, Select | 3 Cyl 1.2 L GAS
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Buick Knock Sensor
Part Number: 10456019
Product Specifications
- Other Name: Sensor, Distributor (Also Knock Sensor)
Fits the following Buick Models:
- Century | 1992-1993 | Custom, Limited, Special | 6 Cyl 3.3 L GAS
- LeSabre | 1992-1994 | Custom, Limited | 6 Cyl 3.8 L GAS
- Park Avenue | 1992-1994 | Base, Ultra | 6 Cyl 3.8 L GAS
- Regal | 1990-1993 | Custom, Gran Sport, Limited | 6 Cyl 3.8 L GAS
- Riviera | 1992-1993 | Luxury | 6 Cyl 3.8 L GAS
- Skylark | 1992-1993 | Custom, Gran Sport, Limited | 6 Cyl 3.3 L GAS
View More
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Buick Knock Sensor
Part Number: 10456287
Product Specifications
- Other Name: Sensor, Distributor (Also Knock Sensor); Control Module; ESC Sensor; Sensor
- Replaces: 10456017
Fits the following Buick Models:
- Roadmaster | 1996 | Collector's Edition, Estate Wagon Collector's Edition, Limited Collector's Edition | 8 Cyl 5.7 L GAS
- Skylark | 1995 | Custom, Limited | 4 Cyl 2.3 L GAS
View related parts
Buick Knock Sensor
Part Number: 10456204
Product Specifications
- Other Name: Sensor, Distributor (Also Knock Sensor)
Fits the following Buick Models:
- LeSabre | 1995 | Custom, Limited | 6 Cyl 3.8 L GAS
- Regal | 1994-1995 | Custom, Gran Sport, Limited | 6 Cyl 3.8 L GAS

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1-20 of 24 Results

Buick Knock Sensor Parts Questions & Experts Answers

Knock Sensor
12591625
Q: How to replace the Knock Sensor (KS) 2 on Buick LeSabre?
A: Vehicle technicians should start by turning off the Ignition Switch before lifting the car since they need to follow secure vehicle lifting principles. First remove splash shield bolts while maintaining safety from hot engine coolant which remains in the water jacket even though you drained the cooling system. Drain the cooling system before removing the two bolts from the Knock Sensor heat shield situated below the freeze plug or block heater area. First disconnect the electrical connection of the Knock Sensor then extract the sensor from its mounting position on the engine block. Installation should not include thread sealants on the sensor threads since factory coating requires its presence for successful detonation detection. Tighten the Knock Sensor inside the engine block with 19 n.m (14 lb ft) of torque. Screw in the Knock Sensor heat shield with a torque of 60 n.m (44 lb ft. Installation involves plugging the electrical connector to the Knock Sensor before installing the splash shield while lowering the vehicle for filling the cooling system and checking the coolant level.
Knock Sensor
12618603
Q: How to replace the bank 2 knock sensor on Buick Enclave?
A: Begin by disconnecting the negative cable from the battery and removing the Oil Filter. You must disconnect the engine wiring harness electrical connector from the bank 2 Knock Sensor while lowering the vehicle. First loosen the Knock Sensor bolt for removal of the Knock Sensor. Install the new Knock Sensor by positioning it correctly and tighten the Knock Sensor bolt until it reaches 23 n.m of torque (17 lb ft). Connect the bank 2 Knock Sensor to its wiring harness electrical connector before you raise and properly support the vehicle. Set up a new engine Oil Filter then attach the negative cable to the battery.
Knock Sensor
12591625
Q: How to Safely Replace the Knock Sensor on a Buick Regal?
A: In order to replace the Knock Sensor (KS) 2, first lift the vehicle and support it. Drain the cooling system to avoid burns from hot engine coolant that might still be indwelt in the engine water jacket. Disconnected the electrical connector and remove the knock sensor (KS) . When installing the new KS do not apply thread sealant on the sensor threads because they are factory-coated and more sealant will reduce their ability to detect detonation. torque to 19 N.m/14lbft. After installing, reconnect the KS electrical connector, drop the vehicle, and top up the cooling system.