Bosch
Ignition Knock (Detonation) Sensor (New)

Bosch 0261231148 Ignition Knock (Detonation) Sensor

Brand Bosch 0261231148
Product line Ignition Knock (Detonation) Sensor (New)
Fits Porsche · 29 vehicles

OE quality. Knock sensor engineered for optimum engine protection.

Fuel savings. Helps reduce fuel consumption by up to 9%.

Ignition knock sensor. Monitors detonation to support smoother engine operation.

Cross-references 99660612500 for the same application. See all 1.

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Bosch Knock Sensor for Porsche Engine Protection

This Bosch ignition knock sensor helps monitor engine detonation so the ECU can adjust timing and protect the engine under load. Built to OE quality standards, Bosch 0261231148 is a direct-fit replacement for select Porsche applications, including Porsche Cayenne, Porsche 911, Porsche Carrera GT, and Porsche Boxster.

Key Features

  • Bosch OE quality ignition knock (detonation) sensor
  • Helps the engine management system detect knock and reduce detonation risk
  • Supports smoother combustion control and fuel consumption reduction up to 9% per manufacturer data
  • Direct replacement for select Porsche models
  • Part number 0261231148 for accurate ordering and service matching

Product Details

Bosch 0261231148 is an emission control sensor used by the engine management system to identify abnormal combustion events and help maintain proper ignition timing. The Bosch Ignition Knock (Detonation) Sensor (New) line focuses on OE-level fit and function, making it a practical choice for Porsche owners servicing a faulted knock sensor on a Porsche Cayenne, Porsche 911, Porsche Carrera GT, or Porsche Boxster. This part cross-references Porsche 99660612500 for the same application.

Common Issues This Sensor May Address

  • Knock sensor fault codes
  • Audible pinging or detonation under acceleration
  • Reduced engine performance from timing retard
  • Rough running caused by inaccurate knock detection
  • Higher fuel use related to incorrect ignition control

Installation Notes

Verify the original sensor location and connector style before installation. Follow the vehicle service procedure for torque, routing, and diagnostic clearing after replacement. For fitment, this part fits 2003-2006 Porsche Cayenne, N/A; fits 1999-2005 Porsche 911, N/A; fits 2004-2005 Porsche Carrera GT, N/A; and fits 1997-2004 Porsche Boxster, N/A.

Quality Assurance

Bosch supplies OE-quality engine management components engineered for accurate signal response and dependable service. Part number 0261231148 is built for the demands of Porsche ignition control systems and is intended to restore proper knock sensing performance.

This part fits 29 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelBody TypeDrive TypeLitersCylindersPositionNotes
2006PorscheCayenne4.5LV8N/AIgnition Knock (Detonation) Sensor (New)
2005Porsche9113.6LH6N/AIgnition Knock (Detonation) Sensor (New)
2005PorscheCarrera GT5.7LV10N/AIgnition Knock (Detonation) Sensor (New)
2005PorscheCayenne4.5LV8N/AIgnition Knock (Detonation) Sensor (New)
2004Porsche9113.6LH6N/AIgnition Knock (Detonation) Sensor (New)
2004PorscheBoxster2.7LH6N/AIgnition Knock (Detonation) Sensor (New)
2004PorscheBoxster3.2LH6N/AIgnition Knock (Detonation) Sensor (New)
2004PorscheCarrera GT5.7LV10N/AIgnition Knock (Detonation) Sensor (New)
2004PorscheCayenne4.5LV8N/AIgnition Knock (Detonation) Sensor (New)
2003Porsche911RWD3.6LH6N/AIgnition Knock (Detonation) Sensor (New)
2003Porsche9113.6LH6N/AIgnition Knock (Detonation) Sensor (New)
2003Porsche911ConvertibleAWD3.6LH6N/AIgnition Knock (Detonation) Sensor (New)
2003PorscheBoxster2.7LH6N/AIgnition Knock (Detonation) Sensor (New)
2003PorscheBoxster3.2LH6N/AIgnition Knock (Detonation) Sensor (New)
2003PorscheCayenne4.5LV8N/AIgnition Knock (Detonation) Sensor (New)
2002Porsche9113.6LH6N/AIgnition Knock (Detonation) Sensor (New)
2002PorscheBoxster2.7LH6N/AIgnition Knock (Detonation) Sensor (New)
2002PorscheBoxster3.2LH6N/AIgnition Knock (Detonation) Sensor (New)
2001Porsche911Coupe3.4LH6N/AIgnition Knock (Detonation) Sensor (New)
2001Porsche9113.6LH6N/AIgnition Knock (Detonation) Sensor (New)
2001PorscheBoxster2.7LH6N/AIgnition Knock (Detonation) Sensor (New)
2001PorscheBoxster3.2LH6N/AIgnition Knock (Detonation) Sensor (New)
2000Porsche911Coupe3.4LH6N/AIgnition Knock (Detonation) Sensor (New)
2000PorscheBoxster2.7LH6N/AIgnition Knock (Detonation) Sensor (New)
2000PorscheBoxster3.2LH6N/AIgnition Knock (Detonation) Sensor (New)
1999Porsche9113.4LH6N/AIgnition Knock (Detonation) Sensor (New)
1999PorscheBoxster2.5LH6N/AIgnition Knock (Detonation) Sensor (New)
1998PorscheBoxster2.5LH6N/AIgnition Knock (Detonation) Sensor (New)
1997PorscheBoxster2.5LH6N/AIgnition Knock (Detonation) Sensor (New)
Directly replaces or cross-references 1 part number
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
99660612500