How to Correctly Install a Knock Sensor on Jeep Wrangler?

The first step is to clean the hole where you will install the knock sensor. Put the sensor into place on the engine so that both the engine and the mounting bolts are not too loose or too tight-this helps the sensor work well and control the spark. When installing the knock sensor bolt, apply 15 ± 2 ft. lbs. (20 Nm) (176 in.lbs.), since it is a relatively light bolt for an 8 mm size. Kindly note that the foam piece on the bolt's threads is only kept to secure the bolts during plant assembly and should remain untreated by adhesives, sealants or thread locking compounds. After bolting down the mount, attach the cable to the knock sensor, drop the vehicle and secure the negative cable again.

OEM Jeep Wrangler Knock Sensor

Engine Knock Sensor

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7 Knock Sensors found

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Jeep Wrangler 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
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2013-2017 Jeep Wrangler | 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
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Jeep Wrangler 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
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2021-2024 Jeep Wrangler
- 2007-2011 Jeep Wrangler | 3.8L V6
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Jeep Wrangler 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
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2012 Jeep Wrangler | Rubicon, Sahara, Sport, Unlimited Rubicon, Unlimited Sahara, Unlimited Sport | 6 Cyl 3.6 L GAS
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Jeep Wrangler 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
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2023-2025 Jeep Wrangler | 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 Wrangler 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
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2018-2022 Jeep Wrangler | 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 Wrangler 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
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2018-2025 Jeep Wrangler | 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 Wrangler Knock Sensor Part Number: 4886382AA
Product Specifications
- Other Name: Sensor
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 1992-1995 Jeep Wrangler | Base, Islander, Renegade, Rio Grande, S, SE, Sahara | 4 Cyl 2.5 L GAS, 6 Cyl 4.0 L GAS

Jeep Wrangler Knock Sensor

Choose OEM Knock Sensor that meet Jeep factory standards. Jeep designs and tests every component for precision and durability. Each Knock Sensor follows strict manufacturing steps to lock in quality and fit. If your Jeep Wrangler matters to you, OEM parts make the smart choice. You'll get the exact look, feel, and performance you expect. Shop genuine Wrangler parts at the highly competitive prices online. Enjoy a manufacturer's warranty, a hassle-free return policy, and rapid delivery. No more guesswork with off brands. Get genuine parts with exact fit and true factory performance. Shop with confidence today at JeepPartsDeal.com.

The Jeep Wrangler comes with a Knock Sensor whose primary function is to monitor the knock of the engine which is caused by incorrect ignition timing. This sensor relays information to the PCM which then allow the PCM to control the ignition timing to prevent the occurrence of extreme detonation. Usually, Jeep Wrangler Knock Sensor is piezoelectric and transforms shaken vibrations into electrical signals checked permanently for pressure spiking which may signify knocking. Throughout the different years of production of jeep wrangler, different models have incorporated knock sensor which enable accurate control of the ignition timing and also sometimes the boost pressure. This feeding maintains maximum engine power at the same time reduces incidences of damage especially in the event that substandard octane fuels are utilized. Jeep Wrangler Knock Sensor system can well be defined as the epitome of modern developments in the field of engine management and their ability to improve the car's performance and durability across different driving conditions.

Jeep Wrangler Knock Sensor Parts and Q&A

Knock Sensor
5033316AB
Q: How to Correctly Install a Knock Sensor on Jeep Wrangler?
A:
The first step is to clean the hole where you will install the knock sensor. Put the sensor into place on the engine so that both the engine and the mounting bolts are not too loose or too tight-this helps the sensor work well and control the spark. When installing the knock sensor bolt, apply 15 ± 2 ft. lbs. (20 Nm) (176 in.lbs.), since it is a relatively light bolt for an 8 mm size. Kindly note that the foam piece on the bolt's threads is only kept to secure the bolts during plant assembly and should remain untreated by adhesives, sealants or thread locking compounds. After bolting down the mount, attach the cable to the knock sensor, drop the vehicle and secure the negative cable again.