How to Install a Knock Sensor on a 3.8L Engine on Jeep Wrangler?

You should first clean the hole carefully where the knock sensor will be installed on a 3.8L engine. Install the sensor where it belongs to the engine and tighten the bolts so they aren't too loose or too tight or this can impact the sensor's performance and how sparks are controlled. With a 15 ± 2 ft. lbs. (20 Nm) (176 in.lbs.) torque, the mounting bolt should be quite light for an 8 mm bolt. The foam pad on the threads prevents bolts from loosening when fixing the sensors and should not be treated with any fixing material or glue. After you tighten the mounting bolt, join the electrical connector with the knock sensor, bring the car down from the jack and attach the negative cable again.

How to Install a Knock Sensor on a 3.7L Engine on Jeep Grand Cherokee?

You need to look for the left sensor by its badge (LEFT) and remember it's the one with the bigger bolt, because you want the car's Powertrain Control Module (PCM) to know which sensor belongs where on your 3.7L engine. Before installing the sensors, ensure the holes in the mounting area are free from dirt. Correct torque must be used for all sensor mounting bolts, since improper tightening may affect how the sensor works and possibly causes problems with spark control; the recommended torque for the knock sensor bolt is 15 ± 2 ft.lbs. (20 Nm) (176 in.lbs). Keep in mind that the foam strips are only necessary during assembly and should not be added to with adhesive, sealant or thread locking compound. Bolts tightened, drape the knock sensor wiring over the engine harness at the bottom of the intake manifold, then connect the harness to the engine harness and finally, insert the intake manifold into its mount.

OEM Jeep Knock Sensor

Engine Knock Sensor

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14 Knock Sensors found

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Jeep Knock Sensor Part Number: 68166540AA
$137.15 MSRP: $205.00
You Save: $67.85 (34%)
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Product Specifications
- Other Name: Sensor - Knock; Ignition Knock (Detonation) Sensor; Sensor Knock
- Replaces: 68166540AB
Fits the following Jeep Models:
- Cherokee | 2014-2018 | 75th Anniversary, Latitude, Latitude Plus, Limited, Overland, Sport, Trailhawk | 6 Cyl 3.2 L GAS
- Grand Cherokee | 2013-2017 | 75th Anniversary, Laredo, Limited, Overland, Summit, Trailhawk | 6 Cyl 3.6 L FLEX
- Wrangler | 2013-2017 | 75th Anniversary, Rubicon, Sahara, Sport, Sport S, Unlimited 75th Anniversary, Unlimited Rubicon, Unlimited Sahara, Unlimited Sport, Unlimited Sport S | 6 Cyl 3.6 L GAS
- Wrangler JK | 2018 | Rubicon, Sahara, Sport, Sport S, Unlimited Rubicon, Unlimited Sahara, Unlimited Sport, Unlimited Sport S | 6 Cyl 3.6 L GAS
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Jeep Knock Sensor Part Number: 4606093AF
$119.31 MSRP: $182.00
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Product Specifications
- Other Name: Sensor - Knock; Ignition Knock (Detonation) Sensor; Throttle Sensor; Sensor Knock
- Replaces: 4606093AC, 4606093AE
Fits the following Jeep Models:
- Commander | 2007-2010 | Base, Limited, Sport | 3.7L V6, 4.7L V8, 6 Cyl 3.7 L GAS, 8 Cyl 4.7 L FLEX, 8 Cyl 4.7 L GAS
- Grand Cherokee | 2007-2010 | Laredo, Limited | 3.7L V6, 4.7L V8, 6 Cyl 3.7 L GAS, 8 Cyl 4.7 L FLEX, 8 Cyl 4.7 L GAS
- Liberty | 2007-2012 | Jet, Limited, Renegade, Sport | 3.7L V6, 6 Cyl 3.7 L GAS
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Jeep Knock Sensor Part Number: 5033316AB
$128.23 MSRP: $194.00
You Save: $65.77 (34%)
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Product Specifications
- Other Name: Sensor - Knock; Ignition Knock (Detonation) Sensor; MAP Sensor; Sensor Knock
- Replaces: 5033316AA, 56028563AA
Fits the following Jeep Models:
- Cherokee | 2014-2023 | 75th Anniversary, 80th Anniversary, Altitude, Altitude Lux, High Altitude, Latitude, Latitude Plus, Limited, Overland, Sport, Trailhawk | 4 Cyl 2.4 L GAS
- Commander | 2006-2010 | Limited, Overland, Sport | 5.7L V8, 8 Cyl 5.7 L GAS
- Compass | 2007-2022 | 75th Anniversary, 80th Anniversary, Altitude, Base, High Altitude, Latitude, Latitude Lux, Limited, Red, Sport, Trailhawk, Upland | 2.0L L4, 2.4L L4, 4 Cyl 2.0 L GAS, 4 Cyl 2.4 L GAS
- Grand Cherokee | 2005-2021 | High Altitude, Laredo, Limited, Limited X, Overland, Overland Summit, SRT, SRT8, Summit, Trailhawk | 5.7L V8, 6.1L V8, 6.4L V8, 8 Cyl 5.7 L GAS, 8 Cyl 6.1 L GAS, 8 Cyl 6.4 L GAS
- Grand Wagoneer | 2022-2023 | Base, Obsidian, Series I, Series II, Series III, Series III Obsidian | 8 Cyl 6.4 L GAS
- Patriot | 2007-2017 | 75th Anniversary, Latitude, Latitude X, Limited, Sport | 2.0L L4, 2.4L L4, 4 Cyl 2.0 L GAS, 4 Cyl 2.4 L GAS
- Renegade | 2015-2021 | 75th Anniversary, 80th Anniversary, Altitude, Dawn Of Justice, Islander, Jeepster, Latitude, Limited, Sport, Trailhawk, Upland | 4 Cyl 2.4 L FLEX, 4 Cyl 2.4 L GAS
- Wrangler | 2021-2024, 2007-2011 | 70th Anniversary, Rubicon, Sahara, Sport, Unlimited 70th Anniversary, Unlimited Rubicon, Unlimited Rubicon 392, Unlimited Sahara, Unlimited Sport, Unlimited X, X | 3.8L V6, 6 Cyl 3.8 L GAS, 8 Cyl 6.4 L GAS
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Jeep Knock Sensor Part Number: 56041677AB
$103.47 MSRP: $157.00
You Save: $53.53 (35%)
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Product Specifications
- Other Name: Sensor - Knock; Ignition Knock (Detonation) Sensor; Map Sensor; Sensor Knock
Fits the following Jeep Models:
- Commander | 2006-2007 | 65th Anniversary Edition, Base, Limited, Sport | 8 Cyl 4.7 L FLEX, 8 Cyl 4.7 L GAS
- Grand Cherokee | 2005-2007 | 65th Anniversary Edition, Laredo, Limited | 8 Cyl 4.7 L FLEX, 8 Cyl 4.7 L GAS
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Jeep Knock Sensor Part Number: 5149188AA
$58.62 MSRP: $79.70
You Save: $21.08 (27%)
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Product Specifications
- Other Name: Sensor - Knock; Ignition Knock (Detonation) Sensor; Sensor Knock
Fits the following Jeep Models:
- Grand Cherokee | 2011-2012 | Laredo, Limited, Overland, Overland Summit | 6 Cyl 3.6 L FLEX
- Wrangler | 2012 | Rubicon, Sahara, Sport, Unlimited Rubicon, Unlimited Sahara, Unlimited Sport | 6 Cyl 3.6 L GAS
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Jeep Knock Sensor Part Number: 68577697AA
$13.39 MSRP: $19.90
You Save: $6.51 (33%)
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Product Specifications
- Other Name: Sensor - Knock
Fits the following Jeep Models:
- Cherokee | 2023 | Trailhawk | 4 Cyl 2.0 L GAS
- Compass | 2023-2025 | Altitude, High Altitude, Latitude, Latitude Lux, Limited, Red, Sport, Trailhawk | 4 Cyl 2.0 L GAS
- Grand Cherokee | 2023-2025 | 30th Anniversary 4xe, 4xe, Anniversary Edition 4xe | 4 Cyl 2.0 L PLUG-IN HYBRID EV-GAS (PHEV)
- Wrangler | 2023-2025 | Freedom, Rubicon, Rubicon X, Sport, Sport S, Unlimited Freedom, Unlimited High Altitude, Unlimited High Altitude 4xe, Unlimited Rubicon, Unlimited Rubicon 4xe, Unlimited Rubicon X, Unlimited Rubicon X 4xe, Unlimited Sahara, Unlimited Sahara 4xe, Unlimited Sahara Altitude, Unlimited Sport, Unlimited Sport Altitude, Unlimited Sport S, Unlimited Sport S 4xe, Unlimited Willys, Unlimited Willys 4xe, Unlimited Willys Sport, Willys, Willys Sport | 4 Cyl 2.0 L GAS, 4 Cyl 2.0 L PLUG-IN HYBRID EV-GAS (PHEV)
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Jeep Knock Sensor Part Number: 68570138AA
$22.70 MSRP: $33.60
You Save: $10.90 (33%)
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Product Specifications
- Other Name: Sensor - Knock
- Replaces: 68223050AA
Fits the following Jeep Models:
- Cherokee | 2019-2022 | 80th Anniversary, Altitude, High Altitude, Latitude Lux, Latitude Plus, Limited, Overland, Trailhawk, Trailhawk Elite | 2.0L L4, 4 Cyl 2.0 L GAS
- Grand Cherokee | 2018-2023 | 4xe, Overland, Summit, Summit Reserve, Trackhawk, Trailhawk | 4 Cyl 2.0 L PLUG-IN HYBRID EV-GAS (PHEV), 6.2L V8, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L GAS
- Grand Cherokee L | 2021-2024 | Overland, Summit, Summit Reserve | 8 Cyl 5.7 L GAS
- Renegade | 2019-2022 | 80th Anniversary, Altitude, High Altitude, Latitude, Limited, Red, Sport, Trailhawk | 1.3L L4, 4 Cyl 1.3 L GAS
- Wagoneer | 2022-2023 | Base, Series I, Series I Carbide, Series II, Series II Carbide, Series III, Series III Carbide | 8 Cyl 5.7 L MILD HYBRID EV-GAS (MHEV)
- Wrangler | 2018-2022 | 80th Anniversary, Freedom, Islander, Rubicon, Sport, Sport S, Unlimited 80th Anniversary, Unlimited Freedom, Unlimited High Altitude, Unlimited High Altitude 4xe, Unlimited Islander, Unlimited Rubicon, Unlimited Rubicon 4xe, Unlimited Sahara, Unlimited Sahara 4xe, Unlimited Sahara Altitude, Unlimited Sport, Unlimited Sport Altitude, Unlimited Sport S, Unlimited Willys, Unlimited Willys Sport, Willys, Willys Sport | 2.0L L4, 4 Cyl 2.0 L GAS, 4 Cyl 2.0 L MILD HYBRID EV-GAS (MHEV), 4 Cyl 2.0 L PLUG-IN HYBRID EV-GAS (PHEV)
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Jeep Sensor - Knock Part Number: 68233680AB
$23.72 MSRP: $35.00
You Save: $11.28 (33%)
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Product Specifications
- Other Name: KNOCK
Fits the following Jeep Models:
- Grand Wagoneer | 2022-2025 | Base, Obsidian, Series I, Series II, Series III, Series III Obsidian | 6 Cyl 3.0 L GAS
- Grand Wagoneer L | 2023-2025 | Base, Obsidian, Series II, Series III, Series III Obsidian | 6 Cyl 3.0 L GAS
- Wagoneer | 2023-2025 | Base, Carbide, Series II, Series III | 6 Cyl 3.0 L GAS
- Wagoneer L | 2023-2025 | Base, Carbide, Series II, Series III | 6 Cyl 3.0 L GAS
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Jeep Knock Sensor Part Number: 68233680AA
$23.72 MSRP: $35.00
You Save: $11.28 (33%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor - Knock
- Replaced by: 68233680AB
Fits the following Jeep Models:
- Grand Wagoneer | 2022-2025 | Base, Obsidian, Series I, Series II, Series III, Series III Obsidian | 6 Cyl 3.0 L GAS
- Grand Wagoneer L | 2023-2025 | Base, Obsidian, Series II, Series III, Series III Obsidian | 6 Cyl 3.0 L GAS
- Wagoneer | 2023-2025 | Base, Carbide, Series II, Series III | 6 Cyl 3.0 L GAS
- Wagoneer L | 2023-2025 | Base, Carbide, Series II, Series III | 6 Cyl 3.0 L GAS
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Jeep Knock Sensor Part Number: 68313570AB
$19.98 MSRP: $29.35
You Save: $9.37 (32%)
ADD TO CART
Product Specifications
- Other Name: Sensor - Knock
- Replaces: 68313570AA
Fits the following Jeep Models:
- Cherokee | 2019-2022 | 80th Anniversary, Altitude, High Altitude, Latitude, Latitude Lux, Latitude Plus, Limited, Overland, Trailhawk, Trailhawk Elite, Upland, X | 3.2L V6, 6 Cyl 3.2 L GAS
- Gladiator | 2020-2025 | 80th Anniversary, Altitude, Freedom, High Altitude, Launch Edition, Mojave, Mojave X, NightHawk, Overland, Rubicon, Rubicon X, Sport, Sport S, Texas Trail, Willys, Willys Sport | 3.6L V6, 6 Cyl 3.6 L GAS
- Grand Cherokee | 2018-2025 | 80th Anniversary, Altitude, Altitude X, High Altitude, Laredo, Laredo E, Laredo X, Limited, Limited X, Overland, Summit, Summit Reserve, Trailhawk, Upland | 3.6L V6, 6 Cyl 3.6 L FLEX, 6 Cyl 3.6 L GAS
- Grand Cherokee L | 2021-2025 | Altitude, Altitude X, Laredo, Laredo X, Limited, Overland, Summit, Summit Reserve | 6 Cyl 3.6 L FLEX, 6 Cyl 3.6 L GAS
- Grand Cherokee WK | 2022 | Laredo E, Laredo X, Limited | 6 Cyl 3.6 L FLEX
- Grand Wagoneer | 2022-2025 | Base, Obsidian, Series I, Series II, Series III, Series III Obsidian | 6 Cyl 3.0 L GAS
- Grand Wagoneer L | 2023-2025 | Base, Obsidian, Series II, Series III, Series III Obsidian | 6 Cyl 3.0 L GAS
- Wagoneer | 2023-2025 | Base, Carbide, Series II, Series III | 6 Cyl 3.0 L GAS
- Wagoneer L | 2023-2025 | Base, Carbide, Series II, Series III | 6 Cyl 3.0 L GAS
- Wrangler | 2018-2025 | 80th Anniversary, Freedom, Islander, Rubicon, Rubicon X, Sport, Sport S, Unlimited 80th Anniversary, Unlimited Freedom, Unlimited High Altitude, Unlimited High Tide, Unlimited Islander, Unlimited Moab, Unlimited Rubicon, Unlimited Rubicon X, Unlimited Sahara, Unlimited Sahara Altitude, Unlimited Sport, Unlimited Sport Altitude, Unlimited Sport S, Unlimited Willys, Unlimited Willys Sport, Willys, Willys Sport | 3.6L V6, 6 Cyl 3.6 L GAS, 6 Cyl 3.6 L MILD HYBRID EV-GAS (MHEV)
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Jeep Knock Sensor Bracket Part Number: 56041849AA
Product Specifications
- Other Name: Sensor - Knock Sensor; Ignition Knock (Detonation) Sensor Bracket; Bracket Knock Sensor
Fits the following Jeep Models:
- Commander | 2006 | 65th Anniversary Edition, Base, Limited | 6 Cyl 3.7 L GAS, 8 Cyl 4.7 L GAS
- Grand Cherokee | 2005-2007 | 65th Anniversary Edition, Laredo, Limited | 6 Cyl 3.7 L GAS, 8 Cyl 4.7 L FLEX, 8 Cyl 4.7 L GAS
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Jeep Knock Sensor Part Number: 4886382AA
Product Specifications
- Other Name: Sensor
Fits the following Jeep Models:
- Cherokee | 1992-1996 | Base, Briarwood, Classic, Country, Laredo, Limited, SE, Sport | 4 Cyl 2.5 L GAS, 6 Cyl 4.0 L GAS
- Comanche | 1992 | Base, Eliminator, Pioneer | 4 Cyl 2.5 L GAS, 6 Cyl 4.0 L GAS
- Wrangler | 1992-1995 | Base, Islander, Renegade, Rio Grande, S, SE, Sahara | 4 Cyl 2.5 L GAS, 6 Cyl 4.0 L GAS
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Jeep Knock Sensor Part Number: 68070745AA
Product Specifications
- Other Name: Sensor - Knock; Ignition Knock (Detonation) Sensor; Sensor Knock
Fits the following Jeep Models:
- Renegade | 2015-2018 | 75th Anniversary, Altitude, Latitude, Sport | 4 Cyl 1.4 L GAS
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Jeep Knock Sensor Part Number: 56041679AC
Product Specifications
- Other Name: Sensor - Knock; Ignition Knock (Detonation) Sensor; Map Sensor; Sensor Knock
Fits the following Jeep Models:
- Commander | 2006 | 65th Anniversary Edition, Base | 6 Cyl 3.7 L GAS
- Grand Cherokee | 2005-2006 | 65th Anniversary Edition, Laredo | 6 Cyl 3.7 L GAS
- Liberty | 2002-2007 | 65th Anniversary Edition, Limited, Renegade, Rocky Mountain Edition, Sport | 6 Cyl 3.7 L GAS
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Jeep Knock Sensor

OEM parts sourced directly from Jeep deliver superior quality, long lasting strength, and a precise fit you can trust. Each item goes through strict quality checks to ensure safety, toughness, and performance that matches your factory equipment. At JeepPartsDeal online shop, you'll get top-quality, budget-friendly OEM Jeep Knock Sensor for your vehicle. We focus on giving you a high standard without pushing up the price. Our full selection of genuine factory products comes backed by the original manufacturer's warranty. You'll love our fast delivery, seamless shopping experience, and convenient return policy, saving you all the hassle.

Jeep Knock Sensor Parts and Q&A

Knock Sensor
5033316AB
Q: How to Install a Knock Sensor on a 3.8L Engine on Jeep Wrangler?
A:
You should first clean the hole carefully where the knock sensor will be installed on a 3.8L engine. Install the sensor where it belongs to the engine and tighten the bolts so they aren't too loose or too tight or this can impact the sensor's performance and how sparks are controlled. With a 15 ± 2 ft. lbs. (20 Nm) (176 in.lbs.) torque, the mounting bolt should be quite light for an 8 mm bolt. The foam pad on the threads prevents bolts from loosening when fixing the sensors and should not be treated with any fixing material or glue. After you tighten the mounting bolt, join the electrical connector with the knock sensor, bring the car down from the jack and attach the negative cable again.
Knock Sensor
4606093AF
Q: How to Install a Knock Sensor on a 3.7L Engine on Jeep Grand Cherokee?
A:
You need to look for the left sensor by its badge (LEFT) and remember it's the one with the bigger bolt, because you want the car's Powertrain Control Module (PCM) to know which sensor belongs where on your 3.7L engine. Before installing the sensors, ensure the holes in the mounting area are free from dirt. Correct torque must be used for all sensor mounting bolts, since improper tightening may affect how the sensor works and possibly causes problems with spark control; the recommended torque for the knock sensor bolt is 15 ± 2 ft.lbs. (20 Nm) (176 in.lbs). Keep in mind that the foam strips are only necessary during assembly and should not be added to with adhesive, sealant or thread locking compound. Bolts tightened, drape the knock sensor wiring over the engine harness at the bottom of the intake manifold, then connect the harness to the engine harness and finally, insert the intake manifold into its mount.