HomeEmission Control > SensorsStandard KS81T Ignition Knock (Detonation) Sensor
Part #: KS81T

Standard KS81T Ignition Knock (Detonation) Sensor

70 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Lexus and Toyota, 4Runner, Avalon, Camry, Corolla, ES300, GS300, LS400, Previa, RX300, SC400, Sienna, Solara, Supra, T100, Tacoma, and Tundra
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Reliable Ignition Knock Sensor for Lexus and Toyota Vehicles

The Standard KS81T Ignition Knock (Detonation) Sensor is designed to provide accurate knock detection for a range of Lexus and Toyota models. Featuring a plug-in connector with a single male blade terminal, this sensor ensures a secure and precise electrical connection for optimal engine performance.

  • Connector Type: Plug in for easy installation
  • Terminal Gender: Male blade terminal
  • Terminal Quantity: Single terminal for reliable signal transmission
  • Compatible with multiple Lexus and Toyota models including Camry, Corolla, Tacoma, and more
  • Part Number: KS81T for exact replacement

Technical Details and Compatibility

The KS81T ignition knock sensor from Standard is engineered to detect engine detonation by monitoring vibrations caused by knocking. Its plug-in connector type simplifies installation and maintenance, while the single male blade terminal ensures a stable electrical connection. This sensor is compatible with a wide range of Lexus and Toyota vehicles such as the 4Runner, Avalon, ES300, GS300, LS400, Previa, RX300, SC400, Sienna, Solara, Supra, T100, Tacoma, and Tundra. Using the correct sensor like the KS81T helps maintain engine efficiency and prevents potential damage caused by improper ignition timing.

Common Applications and Problem Resolution

  • Detects engine knock or detonation to optimize ignition timing
  • Prevents engine damage caused by uncontrolled knocking
  • Helps improve fuel efficiency by ensuring proper combustion
  • Reduces emissions by maintaining correct engine timing
  • Eliminates engine hesitation or rough idling related to knock sensor failure

Installation Notes and Tips

When installing the KS81T ignition knock sensor, ensure the plug-in connector is securely attached to avoid signal loss. The single male blade terminal should be checked for corrosion or damage before installation. Refer to the vehicle’s service manual for torque specifications and sensor location to ensure proper fitment on Lexus and Toyota models such as the Camry, Corolla, or Tacoma.

Quality Assurance and Warranty

Standard manufactures the KS81T ignition knock sensor to meet OEM specifications, ensuring reliable performance and durability. While specific warranty details are not provided, Standard parts typically undergo rigorous testing to comply with industry standards for emission control sensors.

BrandStandard
Part NumberKS81T
Connector TypePlug in
Terminal GenderMale
Terminal Quantity1
Terminal TypeBlade

This part fits 70 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2004LexusGS3003.0LL6N/AMatsushita
2004ToyotaTacoma3.4LV6N/AMatsushita
2004ToyotaTundra4.7LV8N/A
2003LexusGS3003.0LL6N/AMatsushita
2003ToyotaTacoma3.4LV6N/AMatsushita
2003ToyotaTundraN/AMatsushita
2002LexusGS3003.0LL6N/AMatsushita
2002Toyota4Runner3.4LV6N/AMatsushita
2002ToyotaTacoma3.4LV6N/AMatsushita
2002ToyotaTundraN/AMatsushita
2001LexusGS3003.0LL6N/AMatsushita
2001Toyota4Runner3.4LV6N/AMatsushita
2001ToyotaCamry3.0LV6N/AMatsushita
2001ToyotaTacoma3.4LV6N/AMatsushita
2001ToyotaTundra3.4LV6N/AMatsushita
2000LexusGS3003.0LL6N/AMatsushita
2000LexusLS4004.0LV8N/A
2000LexusSC4004.0LV8N/A
2000Toyota4Runner3.4LV6N/AMatsushita
2000ToyotaCamry3.0LV6N/AMatsushita
2000ToyotaTacoma3.4LV6N/AMatsushita
2000ToyotaTundra3.4LV6N/AMatsushita
1999LexusES3003.0LV6N/A
1999LexusGS3003.0LL6N/AMatsushita
1999LexusLS4004.0LV8N/A
1999LexusRX3003.0LV6N/A
1999LexusSC4004.0LV8N/A
1999Toyota4Runner3.4LV6N/AMatsushita
1999ToyotaAvalon3.0LV6N/A
1999ToyotaCamry3.0LV6N/A
1999ToyotaSienna3.0LV6N/AMatsushita
1999ToyotaSolara3.0LV6N/A
1999ToyotaTacoma3.4LV6N/AMatsushita
1998LexusES3003.0LV6N/A
1998LexusGS3003.0LL6N/AMatsushita
1998LexusLS4004.0LV8N/A
1998LexusSC4004.0LV8N/A
1998Toyota4Runner3.4LV6N/AMatsushita
1998ToyotaAvalon3.0LV6N/A
1998ToyotaCamry3.0LV6N/A
1998ToyotaSienna3.0LV6N/AMatsushita
1998ToyotaSupra3.0LL6N/AMatsushita
1998ToyotaT1003.4LV6N/AMatsushita
1998ToyotaTacoma3.4LV6N/AMatsushita
1997LexusES3003.0LV6N/A
1997Toyota4Runner3.4LV6N/AMatsushita
1997ToyotaAvalon3.0LV6N/A
1997ToyotaCamry3.0LV6N/A
1997ToyotaPrevia2.4LL4N/AMatsushita
1997ToyotaT1003.4LV6N/AMatsushita
1997ToyotaTacoma3.4LV6N/AMatsushita
1996LexusES3003.0LV6N/A
1996Toyota4Runner3.4LV6N/AMatsushita
1996ToyotaAvalon3.0LV6N/A
1996ToyotaCamry3.0LV6N/A
1996ToyotaPrevia2.4LL4N/AMatsushita
1996ToyotaT1003.4LV6N/AMatsushita
1996ToyotaTacoma3.4LV6N/AMatsushita
1995LexusES3003.0LV6N/A
1995ToyotaAvalon3.0LV6N/A
1995ToyotaCamry3.0LV6N/A
1995ToyotaPrevia2.4LL4N/AMatsushita
1995ToyotaT1003.4LV6N/AMatsushita
1995ToyotaTacoma3.4LV6N/AMatsushita
1994LexusES3003.0LV6N/AMatsushita
1994ToyotaCamry3.0LV6N/A
1994ToyotaPrevia2.4LL4N/AMatsushita
1993ToyotaPrevia2.4LL4N/AMatsushita
1992ToyotaCorolla1.6LL4N/AMatsushita
1992ToyotaPrevia2.4LL4N/AMatsushita

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

144-717158-078017-0747213-1819242-1040290082KNC00635S224971-6619729118961512040AS10019DKS543DKS543SBKDSA53KS19KS81S8648SBC3696

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.