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Bosch Ignition Knock (Detonation) Sensor | 0261231006

Porsche 944, 968
Saab 9-3, 900, 9000
Volvo V70, 240, 940, 850, C70, 740, S70, 244, 960, 245 & more
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Leaves warehouse within 1-2 business days.

Make Sure It Fits

P/N: 0261231006 Bosch OEM
Please verify appearance and part number on existing sensor prior to ordering.
Cross References:
  • 0261231001
  • 0261231046
  • 1326658
  • 1367644
  • 7568801
  • 94460614500
  • W01331619377

Knock sensors monitor the pre-detonation of the air-fuel mixture in an internal combustion engine. Pre-detonation occurs when part of the air-fuel mixture ignites before normal combustion creating a shockwave that resonates through the engine block that emits an audible knocking or pining sound. When the knock sensor detects the knock or ping, it relays that information to the engine computer so the computer can adjust engine timing and the amount of fuel entering the engine to stop the pre-detonation. Prolonged pre-detonation in one or more cylinders can damage the cylinder walls, pistons, cylinder head gasket, cylinder head, spark plugs, and engine valves.

When a knock sensor detects engine knock for a prolonged timeframe, the engine computer will illuminate the check engine light with a fault code indicating excessive engine knocking that can not be stopped by adjusting timing and fuel entering the engine. Excessive engine pressure due to carbon build-up in a cylinder, excessive engine load, an improperly timed engine, and lower than recommended octane fuel can all cause excessive knocking that the engine computer can not adjust for.

Replacing Your Vehicle's Knock Sensor

Knock sensors are mounted directly to the exterior of the engine block to pick up the vibrations created by pre-detonation. However, due to their location, they can often be challenging to access and may require extensive removal of components such as intake or exhaust manifolds to replace. With that in mind, on average, knock sensors can take between 20 minutes to up to four hours to replace.

View more Bosch Knock Sensors.

Bosch is the world's largest supplier of components to the automotive industry. The Bosch product line includes alternators & starters, brakes, electronic controls and sensors, fuel system parts and management, ignition system components, and steering system components. All Bosch automotive parts are either OEM (Original Equipment Manufacturer) or made to their specs as a replacement part for the OEM unit.
Left = Driver side and Right = Passenger side.
All parts are priced individually unless identified as a set or kit. "Per car" notes identify how many of a given part your car has and "Left/Right or Front/Rear" notes means the part fits the left or right side of the car. These parts are still sold individually and you'll need to select the appropriate quantity if you plan to replace more than one of this item.

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Auto parts at wholesale prices is what you will find at AutohausAZ. Have you been searching the web for auto parts for your vehicle? You have come to the right place! Here at Autohaus, we strive to offer low prices on quality replacement parts and providing first rate customer service.

What This Bosch Ignition Knock (Detonation) Sensor Fits?

Application information below is for reference only and should not be used to determine the exact vehicle fitment. Please use the "Make Sure It Fits" vehicle selection box above to determine the exact fitment and review any application notes. If you need any help determining if this part works with your vehicle, please don't hesitate to contact us.

87-91 - 944 S, S2
89-89 - 944 Turbo
Individual Sensor L4
86-86 - 944 Turbo
Individual Sensor Turbo
92-95 - 968
99-00 - 9-3 Base, SE, Viggen
Individual Sensor
85-93 - 900 S Turbo, SE Turbo, SPG, Turbo, Turbo Commemorative Edition
2.0L Individual Sensor L4 Turbo
86-90 - 9000 Base, CD, S, Turbo
Individual Sensor
90-93 - 240 Base, DL, GL, SE
Individual Sensor
88-89 - 244 DL, GL
Individual Sensor
88-89 - 245 DL, GL
Individual Sensor
85-92 - 740 Base, GL, GLE, T
Individual Sensor
86-86 - 740 GLE
Individual Sensor L4
85-85 - 745 GLE
Individual Sensor L4
84-90 - 760 Base, GLE
Individual Sensor L4
91-91 - 780
Individual Sensor
89-90 - 780
Individual Sensor L4
94-97 - 850 Base, GLT, R, T-5, T-5R & more
Individual Sensor Individual Sensors Original Style
91-95 - 940 Base, GL, GLE, SE, T
Individual Sensor
92-97 - 960
Individual Sensor
98-98 - C70
Individual Sensor Individual Sensors Original Style
98-98 - S70 Base, GLT, T5
Individual Sensor Individual Sensors Original Style
97-98 - S90
Individual Sensor
98-98 - V70 Base, AWD, GLT, R, T5 & more
Individual Sensor Individual Sensors Original Style
97-98 - V90
Individual Sensor