HomeEmission Control > SensorsStandard Ignition KS128 Ignition Knock (Detonation) Sensor
Part #: KS128

Standard Ignition KS128 Ignition Knock (Detonation) Sensor

⚙️ 16 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Ford, Mazda, and Mercury, Escape, Focus, Tribute, Contour, and Mystique
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Reliable Ignition Knock Sensor for Ford, Mazda, and Mercury Vehicles

The Standard Ignition KS128 Ignition Knock (Detonation) Sensor is designed to provide accurate knock detection for improved engine performance. Compatible with select Ford, Mazda, and Mercury models, this sensor ensures precise monitoring of engine detonation to help maintain optimal combustion.

Key Features of the Standard Ignition KS128 Sensor

  • Direct attachment method for secure and stable installation
  • Female rectangular plug-in connector with one connector for easy wiring
  • Bolt mount design for reliable and firm sensor placement
  • Two male blade terminals for consistent electrical connection
  • Compatible with Ford Contour, Escape, Focus, Mazda Mystique, and Mercury Tribute

Detailed Description of the KS128 Ignition Knock Sensor

The KS128 sensor from Standard Ignition is engineered to detect engine knock or detonation by monitoring vibrations within the engine block. Its direct attachment method and bolt mount design ensure the sensor remains firmly in place under various driving conditions. The sensor features a female rectangular plug-in connector with a single connection point, simplifying installation and replacement. Equipped with two male blade terminals, it provides a stable electrical interface for accurate signal transmission. This sensor is specifically compatible with Ford Contour, Escape, Focus, Mazda Mystique, and Mercury Tribute models, making it a suitable replacement part for these vehicles.

Common Issues Addressed by the KS128 Ignition Knock Sensor

  • Engine knocking or pinging during acceleration
  • Reduced fuel efficiency due to improper ignition timing
  • Check engine light triggered by knock sensor fault codes
  • Engine performance issues related to detonation detection failure
  • Potential engine damage from undetected knock events

Installation Notes and Tips

  • Ensure the engine is cool before beginning installation to avoid injury
  • Use the bolt mount to securely fasten the sensor to the engine block
  • Verify the female rectangular plug-in connector is fully seated to prevent signal loss
  • Check wiring and terminals for corrosion or damage before installation
  • Consult vehicle-specific service manuals for torque specifications and sensor location

Quality Assurance and Warranty Information

Standard Ignition manufactures the KS128 sensor to meet or exceed OEM specifications for durability and performance. Each sensor undergoes rigorous testing to ensure reliable operation under normal driving conditions. While specific warranty details may vary, Standard Ignition typically offers coverage against defects in materials and workmanship. Refer to the product packaging or manufacturer documentation for exact warranty terms.

BrandStandard Ignition
Part NumberKS128
Attachment MethodDirect
Connector GenderFemale
Connector ShapeRectangular
Connector TypePlug In
Mounting TypeBolt Mount
Terminal GenderMale
Terminal TypeBlade

This part fits 16 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2004FordEscape2.0LL4N/A
2004FordFocus2.0LL4N/A
2004MazdaTribute2.0LL4N/A
2003FordEscape2.0LL4N/A
2003FordFocus2.0LL4N/A
2003MazdaTribute2.0LL4N/A
2002FordEscape2.0LL4N/A
2002FordFocus2.0LL4N/A
2002MazdaTribute2.0LL4N/A
2001FordEscape2.0LL4N/A
2001FordFocus2.0LL4N/A
2001MazdaTribute2.0LL4N/A
2000FordContour2.0LL4N/A
2000FordFocus2.0LL4N/A
1999FordContour2.0LL4N/AFrom 5/99
1999MercuryMystique2.0LL4N/AFrom 5/3/99

* 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:

0261231124144-225158-1280213-1809242-10702KNC02385S219871-656772943AS10105DKS325KDSA69S8700SBA3905X52Z12A699BAYF0918921

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