Product: Detonation Knock Sensor, Replace 213-3521, 12589867, 2133521, 10456603, S8696 Compatible with Chevy GMC 4.8 5.3 6.0 - 1999-2006 Silverado Sierra, 2000-2006 Suburban Tahoe Yukon, 2002-2006 Avalanche
Brand: Allmotorparts
A knock sensor is located on the intake manifold, cylinder, or engine block. The purpose of the knock sensor is to sense unusual pulsations caused by the engine knock or detonation.
 When you replace the knock sensor please be careful the grime will fall into the cylinders when you pull the intake manifold off.

 Compatible with the Following Vehicles: 4.8L 5.3L 6.0L

 Compatible with Buick Vehicles: 
 2004 Rainier
 Compatible with Cadillac Vehicles: 
 2004-2005 CTS
 2002-2006 Escalade, EXT
 2003-2006 Escalade ESV

 Compatible with Chevy Vehicles: 
 2002-2006 Avalanche 1500
 1998-2002 Camaro
 1998-2004 Corvette
 2003-2007 Express 1500 2500 3500
 1999-2006 Silverado 1500
 2007 Silverado 1500 Classic, 1500 HD Classic
 2001-2003, 2005-2006 Silverado 1500 HD
 1999-2004 Silverado 2500
 2001-2006 Silverado 2500 HD
 2007 Silverado 2500 HD Classic, 2500 Classic
 2001-2006 Silverado 3500
 2003-2004 SSR
 2000-2006 Suburban 1500 2500
 2000-2006 Tahoe
 2003-2004 Trailblazer EXT

 Compatible with GMC Vehicles: 
 2003-2004 Envoy XL
 2004 XUV
 2003-2007 Savana 1500 2500 3500
 1999-2006 Sierra 1500
 2006 Sierra 1500 Classic
 2001-2003, 2005-2006 Sierra 1500 HD
 2007 Sierra 1500 HD Classic
 1999-2004 Sierra 2500
 2001-2006 Sierra 2500 HD
 2007 Sierra 2500 HD Classic
 2001-2006 Sierra 3500
 2007 Sierra 3500 Classic
 2000-2006 Yukon, XL 1500, XL 2500

 Compatible with Hummer Vehicles: 
 2003-2007 H2
 Compatible with Isuzu Vehicles: 
 2003-2004 Ascender
 Compatible with Pontiac Vehicles: 
 1998-2002 Firebird
 2004 GTO

 Replaces Part #: 213-3521, 12589867, 2133521, 10456603, AS10017, 8104566030.

NOTE: To ensure accurate fitment, please confirm your vehicle information in the above compatibility section and the description.

REPLACEMENT DETONATION KNOCK SENSOR : Produced with USA chips. A knock sensor is located on the intake manifold, cylinder, or engine block. The knock sensor is to sense unusual pulsations caused by the engine knock or detonation. Symptoms of a bad knock sensor are check engine light CEL on, loud sounds, bad fuel mileage, poor acceleration and poor engine performance. When you replace the knock sensor please be careful the grime will fall into the cylinders when you pull the intake manifold off.
COMPATIBLE WITH CHEVY, CADILLAC & HUMMER VEHICLES : 4.8 5.3 6.0 - 2004-2005 CTS | 2002-2006 Escalade | 2002-2006 Avalanche 1500 | 1998-2002 Camaro | 1998-2004 Corvette | 2003-2007 Express | 1999-2006 Silverado 1500 | 2001-2003, 2005-2006 Silverado 1500 HD | 1999-2004 Silverado 2500 | 2001-2006 Silverado 2500 HD, 3500 | 2003-2004 SSR, Trailblazer EXT | 2000-2006 Suburban 1500 2500 | 2000-2006 Tahoe | 2003-2007 H2 & more.
REPLACES PART # : 213-3521, 12589867, 2133521, 10456603, AS10017, 8104566030. The knock sensor compatible with GMC, Isuzu & Pontiac : 4.8 5.3 6.0 - 2003-2004 Envoy XL | 2003-2007 Savana | 1999-2006 Sierra 1500 | 2006 Sierra 1500 Classic | 2001-2003, 2005-2006 Sierra 1500 HD | 1999-2004 Sierra 2500 | 2001-2006 Sierra 2500 HD, 3500 | 2000-2006 Yukon | 2003-2004 Ascender | 1998-2002 Firebird | 2004 GTO. Please check the detailed before purchase. Thank you!
OE FIT, FORM, FUNCTION : Professional, high quality OE style and meet or exceed all original equipment performance replacement knock sensor. Constructed with premium materials for durability. All knock sensors are 100% tested using an accelerometer vibration test to ensure trouble-free operation. Help maximize engine performance regardless of fuel quality and reduce potential damage to internal engine components.
AFTER SALES SERVICE : This Detonation Knock Sensor comes with a friendly customer service. If the detonation knock sensor fails on your vehicle, simply contact us for a replacement. Also if you have any other questions, please contact us at the first time. This is NOT a genuine part, it's a aftermarket replacement part manufactured by Allmotorparts.

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