How to service and repair the knock sensor on Toyota 4Runner?

In order to service the knock sensor, loosen the cylinder head sub-assembly, and unconnect the heater water inlet hose A, remove the water outlet pipe No.1, unconnect the knock sensor connectors, and remove the sensors. Installation in reverse order with all components having the correct torque specifications.

How to replace the Knock Sensor on Toyota 4Runner?

To replace the Knock Sensor, remove the cylinder head sub-assembly and heater water inlet hose A. Take off water outlet pipe N0.1, then disconnect and unscrew the 2 knock sensors. Reinstall the sensors, water outlet pipe, and reconnect hoses, ensuring proper torque specifications.

OEM Toyota 4Runner Knock Sensor

Engine Knock Sensor

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9 Knock Sensors found

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Toyota 4Runner Knock Sensor
Part Number: 89615-12090
$145.22 MSRP: $205.57
You Save: $60.35 (30%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Sensor, Knock Control; Ignition Knock (Detonation) Sensor
- Manufacturer Note: DENSO
- Replaces: 89615-12050, 89615-32010
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1995-2002 Toyota 4Runner | Base, Limited, SR5 | 6 Cyl 3.0 L GAS, 6 Cyl 3.4 L GAS
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Toyota 4Runner Knock Sensor
Part Number: 89615-06010
$138.05 MSRP: $195.42
You Save: $57.37 (30%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Sensor, Knock Control; Ignition Knock (Detonation) Sensor
- Replaces: 89615-BZ030, 89615-20090, 89615-BZ040
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2003-2023 Toyota 4Runner | 40th Anniversary Edition, Limited, Nightshade, Sport, SR5, SR5 Premium, Trail, TRD Off-Road, TRD Off-Road Premium, TRD Pro, TRD Sport, Venture | 4 Cyl 2.7 L GAS, 6 Cyl 4.0 L GAS, 8 Cyl 4.7 L GAS
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Toyota 4Runner Knock Sensor
Part Number: 89615-52010
$152.39 MSRP: $215.72
You Save: $63.33 (30%)
Ships in 1 Business Day
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Product Specifications
- Other Name: Sensor, Knock Control; Ignition Knock (Detonation) Sensor
- Manufacturer Note: MATSUSHITA
- Replaces: 89615-12030, 89615-22050
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2003-2004 Toyota 4Runner | Limited, Sport, SR5 | 8 Cyl 4.7 L GAS
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Toyota 4Runner Sensor, Knock Control
Part Number: 89615-50010
$167.66 MSRP: $237.34
You Save: $69.68 (30%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Ignition Knock (Detonation) Sensor; Knock Sensor
- Manufacturer Note: MATSUSHITA
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1992-2000 Toyota 4Runner | Base, SR5 | 4 Cyl 2.4 L GAS, 4 Cyl 2.7 L GAS, 6 Cyl 3.0 L GAS
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Toyota 4Runner Knock Sensor
Part Number: 89615-35040
$153.21 MSRP: $216.89
You Save: $63.68 (30%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor, Knock Control
- Replaces: 89615-35030
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1991 Toyota 4Runner | SR5 | 4 Cyl 2.4 L GAS
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Toyota 4Runner Knock Sensor
Part Number: 89615-26010
$149.33 MSRP: $211.39
You Save: $62.06 (30%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor, Knock Control
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2000 Toyota 4Runner | Base | 4 Cyl 2.7 L GAS
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Toyota 4Runner Sensor, Knock Control
Part Number: 89615-22040
$145.22 MSRP: $205.57
You Save: $60.35 (30%)
Ships in 1 Business Day
ADD TO CART
Product Specifications
- Other Name: Ignition Knock (Detonation) Sensor; Knock Sensor
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1992-1993 Toyota 4Runner | SR5 | 4 Cyl 2.4 L GAS
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Toyota 4Runner Knock Sensor
Part Number: 89615-20010
$155.44 MSRP: $220.04
You Save: $64.60 (30%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor, Knock Control
- Replaces: 89615-20020
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1991 Toyota 4Runner | SR5 | 6 Cyl 3.0 L GAS
View related parts
Toyota 4Runner Knock Sensor
Part Number: 89615-12040
$184.76 MSRP: $263.80
You Save: $79.04 (30%)
ADD TO CART
Product Specifications
- Other Name: Sensor, Knock Control; Ignition Knock (Detonation) Sensor
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1995-2002 Toyota 4Runner | Base, Limited, SR5 | 6 Cyl 3.0 L GAS, 6 Cyl 3.4 L GAS

Toyota 4Runner Knock Sensor

If you're thinking about purchasing OEM parts for your Toyota 4Runner, our website is your one-stop destination. We stock an extensive selection of genuine Toyota 4Runner Knock Sensor at pocket-friendly prices. Plus, we guarantee a swift delivery and a hassle-free return policy for your convenience.

Toyota 4Runner Knock Sensor Parts and Q&A

Knock Sensor
89615-06010
Q: How to service and repair the knock sensor on Toyota 4Runner?
A: In order to service the knock sensor, loosen the cylinder head sub-assembly, and unconnect the heater water inlet hose A, remove the water outlet pipe No.1, unconnect the knock sensor connectors, and remove the sensors. Installation in reverse order with all components having the correct torque specifications.
Knock Sensor
89615-52010
Q: How to replace the Knock Sensor on Toyota 4Runner?
A: To replace the Knock Sensor, remove the cylinder head sub-assembly and heater water inlet hose A. Take off water outlet pipe N0.1, then disconnect and unscrew the 2 knock sensors. Reinstall the sensors, water outlet pipe, and reconnect hoses, ensuring proper torque specifications.